// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
import './UpgradeabilityProxy.sol';
/**
 * @title AdminUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * All external functions in this contract must be guarded by the
 * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
 * feature proposal that would enable this to be done automatically.
 */
contract AdminUpgradeabilityProxy is UpgradeabilityProxy {
  /**
   * Contract constructor.
   * @param _logic address of the initial implementation.
   * @param _admin Address of the proxy administrator.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, address _admin, bytes memory _data) UpgradeabilityProxy(_logic, _data) public payable {
    assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
    _setAdmin(_admin);
  }
  /**
   * @dev Emitted when the administration has been transferred.
   * @param previousAdmin Address of the previous admin.
   * @param newAdmin Address of the new admin.
   */
  event AdminChanged(address previousAdmin, address newAdmin);
  /**
   * @dev Storage slot with the admin of the contract.
   * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
   * validated in the constructor.
   */
  bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
  /**
   * @dev Modifier to check whether the `msg.sender` is the admin.
   * If it is, it will run the function. Otherwise, it will delegate the call
   * to the implementation.
   */
  modifier ifAdmin() {
    if (msg.sender == _admin()) {
      _;
    } else {
      _fallback();
    }
  }
  /**
   * @return The address of the proxy admin.
   */
  function admin() external ifAdmin returns (address) {
    return _admin();
  }
  /**
   * @return The address of the implementation.
   */
  function implementation() external ifAdmin returns (address) {
    return _implementation();
  }
  /**
   * @dev Changes the admin of the proxy.
   * Only the current admin can call this function.
   * @param newAdmin Address to transfer proxy administration to.
   */
  function changeAdmin(address newAdmin) external ifAdmin {
    require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
    emit AdminChanged(_admin(), newAdmin);
    _setAdmin(newAdmin);
  }
  /**
   * @dev Upgrade the backing implementation of the proxy.
   * Only the admin can call this function.
   * @param newImplementation Address of the new implementation.
   */
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeTo(newImplementation);
  }
  /**
   * @dev Upgrade the backing implementation of the proxy and call a function
   * on the new implementation.
   * This is useful to initialize the proxied contract.
   * @param newImplementation Address of the new implementation.
   * @param data Data to send as msg.data in the low level call.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   */
  function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin {
    _upgradeTo(newImplementation);
    (bool success,) = newImplementation.delegatecall(data);
    require(success);
  }
  /**
   * @return adm The admin slot.
   */
  function _admin() internal view returns (address adm) {
    bytes32 slot = ADMIN_SLOT;
    assembly {
      adm := sload(slot)
    }
  }
  /**
   * @dev Sets the address of the proxy admin.
   * @param newAdmin Address of the new proxy admin.
   */
  function _setAdmin(address newAdmin) internal {
    bytes32 slot = ADMIN_SLOT;
    assembly {
      sstore(slot, newAdmin)
    }
  }
  /**
   * @dev Only fall back when the sender is not the admin.
   */
  function _willFallback() internal override virtual {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
import './Proxy.sol';
import '@openzeppelin/contracts/utils/Address.sol';
/**
 * @title UpgradeabilityProxy
 * @dev This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract UpgradeabilityProxy is Proxy {
  /**
   * @dev Contract constructor.
   * @param _logic Address of the initial implementation.
   * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
   * It should include the signature and the parameters of the function to be called, as described in
   * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
   * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
   */
  constructor(address _logic, bytes memory _data) public payable {
    assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
    _setImplementation(_logic);
    if(_data.length > 0) {
      (bool success,) = _logic.delegatecall(_data);
      require(success);
    }
  }  
  /**
   * @dev Emitted when the implementation is upgraded.
   * @param implementation Address of the new implementation.
   */
  event Upgraded(address indexed implementation);
  /**
   * @dev Storage slot with the address of the current implementation.
   * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
   * validated in the constructor.
   */
  bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
  /**
   * @dev Returns the current implementation.
   * @return impl Address of the current implementation
   */
  function _implementation() internal override view returns (address impl) {
    bytes32 slot = IMPLEMENTATION_SLOT;
    assembly {
      impl := sload(slot)
    }
  }
  /**
   * @dev Upgrades the proxy to a new implementation.
   * @param newImplementation Address of the new implementation.
   */
  function _upgradeTo(address newImplementation) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }
  /**
   * @dev Sets the implementation address of the proxy.
   * @param newImplementation Address of the new implementation.
   */
  function _setImplementation(address newImplementation) internal {
    require(Address.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");
    bytes32 slot = IMPLEMENTATION_SLOT;
    assembly {
      sstore(slot, newImplementation)
    }
  }
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
abstract contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
  fallback () payable external {
    _fallback();
  }
  /**
   * @dev Receive function.
   * Implemented entirely in `_fallback`.
   */
  receive () payable external {
    _fallback();
  }
  /**
   * @return The Address of the implementation.
   */
  function _implementation() internal virtual view returns (address);
  /**
   * @dev Delegates execution to an implementation contract.
   * This is a low level function that doesn't return to its internal call site.
   * It will return to the external caller whatever the implementation returns.
   * @param implementation Address to delegate.
   */
  function _delegate(address implementation) internal {
    assembly {
      // Copy msg.data. We take full control of memory in this inline assembly
      // block because it will not return to Solidity code. We overwrite the
      // Solidity scratch pad at memory position 0.
      calldatacopy(0, 0, calldatasize())
      // Call the implementation.
      // out and outsize are 0 because we don't know the size yet.
      let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
      // Copy the returned data.
      returndatacopy(0, 0, returndatasize())
      switch result
      // delegatecall returns 0 on error.
      case 0 { revert(0, returndatasize()) }
      default { return(0, returndatasize()) }
    }
  }
  /**
   * @dev Function that is run as the first thing in the fallback function.
   * Can be redefined in derived contracts to add functionality.
   * Redefinitions must call super._willFallback().
   */
  function _willFallback() internal virtual {
  }
  /**
   * @dev fallback implementation.
   * Extracted to enable manual triggering.
   */
  function _fallback() internal {
    _willFallback();
    _delegate(_implementation());
  }
}
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2 <0.8.0;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.
        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }
    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author: manifold.xyz
import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
/**
 * @dev Royalty registry interface
 */
interface IRoyaltyRegistry is IERC165 {
     event RoyaltyOverride(address owner, address tokenAddress, address royaltyAddress);
    /**
     * Override the location of where to look up royalty information for a given token contract.
     * Allows for backwards compatibility and implementation of royalty logic for contracts that did not previously support them.
     * 
     * @param tokenAddress    - The token address you wish to override
     * @param royaltyAddress  - The royalty override address
     */
    function setRoyaltyLookupAddress(address tokenAddress, address royaltyAddress) external;
    /**
     * Returns royalty address location.  Returns the tokenAddress by default, or the override if it exists
     *
     * @param tokenAddress    - The token address you are looking up the royalty for
     */
    function getRoyaltyLookupAddress(address tokenAddress) external view returns(address);
    /**
     * Whether or not the message sender can override the royalty address for the given token address
     *
     * @param tokenAddress    - The token address you are looking up the royalty for
     */
    function overrideAllowed(address tokenAddress) external view returns(bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;
    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;
    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);
    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }
    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }
    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }
    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
    /**
     * @dev Internal function that returns the initialized version. Returns `_initialized`
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }
    /**
     * @dev Internal function that returns the initialized version. Returns `_initializing`
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.
    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;
    uint256 private _status;
    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }
    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _status = _NOT_ENTERED;
    }
    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }
    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }
    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.
        return account.code.length > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);
    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);
    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;
    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;
    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);
    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/introspection/ERC165Checker.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
 * @dev Library used to query support of an interface declared via {IERC165}.
 *
 * Note that these functions return the actual result of the query: they do not
 * `revert` if an interface is not supported. It is up to the caller to decide
 * what to do in these cases.
 */
library ERC165Checker {
    // As per the EIP-165 spec, no interface should ever match 0xffffffff
    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;
    /**
     * @dev Returns true if `account` supports the {IERC165} interface.
     */
    function supportsERC165(address account) internal view returns (bool) {
        // Any contract that implements ERC165 must explicitly indicate support of
        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
        return
            supportsERC165InterfaceUnchecked(account, type(IERC165).interfaceId) &&
            !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID);
    }
    /**
     * @dev Returns true if `account` supports the interface defined by
     * `interfaceId`. Support for {IERC165} itself is queried automatically.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
        // query support of both ERC165 as per the spec and support of _interfaceId
        return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId);
    }
    /**
     * @dev Returns a boolean array where each value corresponds to the
     * interfaces passed in and whether they're supported or not. This allows
     * you to batch check interfaces for a contract where your expectation
     * is that some interfaces may not be supported.
     *
     * See {IERC165-supportsInterface}.
     *
     * _Available since v3.4._
     */
    function getSupportedInterfaces(address account, bytes4[] memory interfaceIds)
        internal
        view
        returns (bool[] memory)
    {
        // an array of booleans corresponding to interfaceIds and whether they're supported or not
        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);
        // query support of ERC165 itself
        if (supportsERC165(account)) {
            // query support of each interface in interfaceIds
            for (uint256 i = 0; i < interfaceIds.length; i++) {
                interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]);
            }
        }
        return interfaceIdsSupported;
    }
    /**
     * @dev Returns true if `account` supports all the interfaces defined in
     * `interfaceIds`. Support for {IERC165} itself is queried automatically.
     *
     * Batch-querying can lead to gas savings by skipping repeated checks for
     * {IERC165} support.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
        // query support of ERC165 itself
        if (!supportsERC165(account)) {
            return false;
        }
        // query support of each interface in interfaceIds
        for (uint256 i = 0; i < interfaceIds.length; i++) {
            if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) {
                return false;
            }
        }
        // all interfaces supported
        return true;
    }
    /**
     * @notice Query if a contract implements an interface, does not check ERC165 support
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return true if the contract at account indicates support of the interface with
     * identifier interfaceId, false otherwise
     * @dev Assumes that account contains a contract that supports ERC165, otherwise
     * the behavior of this method is undefined. This precondition can be checked
     * with {supportsERC165}.
     * Interface identification is specified in ERC-165.
     */
    function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) {
        // prepare call
        bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);
        // perform static call
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly {
            success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0x00)
        }
        return success && returnSize >= 0x20 && returnValue > 0;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice Interface for functions the market uses in FETH.
 * @author batu-inal & HardlyDifficult
 */
interface IFethMarket {
  function depositFor(address account) external payable;
  function marketLockupFor(address account, uint256 amount) external payable returns (uint256 expiration);
  function marketWithdrawFrom(address from, uint256 amount) external;
  function marketWithdrawLocked(address account, uint256 expiration, uint256 amount) external;
  function marketUnlockFor(address account, uint256 expiration, uint256 amount) external;
  function marketChangeLockup(
    address unlockFrom,
    uint256 unlockExpiration,
    uint256 unlockAmount,
    address lockupFor,
    uint256 lockupAmount
  ) external payable returns (uint256 expiration);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice Interface for AdminRole which wraps the default admin role from
 * OpenZeppelin's AccessControl for easy integration.
 * @author batu-inal & HardlyDifficult
 */
interface IAdminRole {
  function isAdmin(address account) external view returns (bool);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice Interface for OperatorRole which wraps a role from
 * OpenZeppelin's AccessControl for easy integration.
 * @author batu-inal & HardlyDifficult
 */
interface IOperatorRole {
  function isOperator(address account) external view returns (bool);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice An interface for communicating fees to 3rd party marketplaces.
 * @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
 */
interface IGetFees {
  /**
   * @notice Get the recipient addresses to which creator royalties should be sent.
   * @dev The expected royalty amounts are communicated with `getFeeBps`.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return recipients An array of addresses to which royalties should be sent.
   */
  function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
  /**
   * @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
   * @dev The expected recipients are communicated with `getFeeRecipients`.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
   */
  function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
  /**
   * @notice Get the creator royalties to be sent.
   * @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return recipients An array of addresses to which royalties should be sent.
   * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
   */
  function getRoyalties(uint256 tokenId)
    external
    view
    returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;
interface IOwnable {
  /**
   * @dev Returns the address of the current owner.
   */
  function owner() external view returns (address);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice Interface for EIP-2981: NFT Royalty Standard.
 * For more see: https://eips.ethereum.org/EIPS/eip-2981.
 */
interface IRoyaltyInfo {
  /**
   * @notice Get the creator royalties to be sent.
   * @param tokenId The ID of the NFT to get royalties for.
   * @param salePrice The total price of the sale.
   * @return receiver The address to which royalties should be sent.
   * @return royaltyAmount The total amount that should be sent to the `receiver`.
   */
  function royaltyInfo(uint256 tokenId, uint256 salePrice)
    external
    view
    returns (address receiver, uint256 royaltyAmount);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
  /**
   * @notice Returns the creator of this NFT collection.
   * @param tokenId The ID of the NFT to get the creator payment address for.
   * @return creator The creator of this collection.
   */
  function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @title Helper functions for arrays.
 * @author batu-inal & HardlyDifficult
 */
library ArrayLibrary {
  /**
   * @notice Reduces the size of an array if it's greater than the specified max size,
   * using the first maxSize elements.
   */
  function capLength(address payable[] memory data, uint256 maxLength) internal pure {
    if (data.length > maxLength) {
      assembly {
        mstore(data, maxLength)
      }
    }
  }
  /**
   * @notice Reduces the size of an array if it's greater than the specified max size,
   * using the first maxSize elements.
   */
  function capLength(uint256[] memory data, uint256 maxLength) internal pure {
    if (data.length > maxLength) {
      assembly {
        mstore(data, maxLength)
      }
    }
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @title Helpers for working with time.
 * @author batu-inal & HardlyDifficult
 */
library TimeLibrary {
  /**
   * @notice Checks if the given timestamp is in the past.
   * @dev This helper ensures a consistent interpretation of expiry across the codebase.
   * This is different than `hasBeenReached` in that it will return false if the expiry is now.
   */
  function hasExpired(uint256 expiry) internal view returns (bool) {
    return expiry < block.timestamp;
  }
  /**
   * @notice Checks if the given timestamp is now or in the past.
   * @dev This helper ensures a consistent interpretation of expiry across the codebase.
   * This is different from `hasExpired` in that it will return true if the timestamp is now.
   */
  function hasBeenReached(uint256 timestamp) internal view returns (bool) {
    return timestamp <= block.timestamp;
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
/**
 * @title An abstraction layer for auctions.
 * @dev This contract can be expanded with reusable calls and data as more auction types are added.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketAuction is Initializable {
  /**
   * @notice A global id for auctions of any type.
   */
  uint256 private nextAuctionId;
  /**
   * @notice Called once to configure the contract after the initial proxy deployment.
   * @dev This sets the initial auction id to 1, making the first auction cheaper
   * and id 0 represents no auction found.
   */
  function _initializeNFTMarketAuction() internal onlyInitializing {
    nextAuctionId = 1;
  }
  /**
   * @notice Returns id to assign to the next auction.
   */
  function _getNextAndIncrementAuctionId() internal returns (uint256) {
    // AuctionId cannot overflow 256 bits.
    unchecked {
      return nextAuctionId++;
    }
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[1_000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import "../shared/MarketFees.sol";
import "../shared/FoundationTreasuryNode.sol";
import "../shared/FETHNode.sol";
import "../shared/MarketSharedCore.sol";
import "../shared/SendValueWithFallbackWithdraw.sol";
import "./NFTMarketCore.sol";
/// @param buyPrice The current buy price set for this NFT.
error NFTMarketBuyPrice_Cannot_Buy_At_Lower_Price(uint256 buyPrice);
error NFTMarketBuyPrice_Cannot_Buy_Unset_Price();
error NFTMarketBuyPrice_Cannot_Cancel_Unset_Price();
/// @param owner The current owner of this NFT.
error NFTMarketBuyPrice_Only_Owner_Can_Cancel_Price(address owner);
/// @param owner The current owner of this NFT.
error NFTMarketBuyPrice_Only_Owner_Can_Set_Price(address owner);
error NFTMarketBuyPrice_Price_Already_Set();
error NFTMarketBuyPrice_Price_Too_High();
/// @param seller The current owner of this NFT.
error NFTMarketBuyPrice_Seller_Mismatch(address seller);
/**
 * @title Allows sellers to set a buy price of their NFTs that may be accepted and instantly transferred to the buyer.
 * @notice NFTs with a buy price set are escrowed in the market contract.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketBuyPrice is
  Initializable,
  FoundationTreasuryNode,
  FETHNode,
  MarketSharedCore,
  NFTMarketCore,
  ReentrancyGuardUpgradeable,
  SendValueWithFallbackWithdraw,
  MarketFees
{
  using AddressUpgradeable for address payable;
  /// @notice Stores the buy price details for a specific NFT.
  /// @dev The struct is packed into a single slot to optimize gas.
  struct BuyPrice {
    /// @notice The current owner of this NFT which set a buy price.
    /// @dev A zero price is acceptable so a non-zero address determines whether a price has been set.
    address payable seller;
    /// @notice The current buy price set for this NFT.
    uint96 price;
  }
  /// @notice Stores the current buy price for each NFT.
  mapping(address => mapping(uint256 => BuyPrice)) private nftContractToTokenIdToBuyPrice;
  /**
   * @notice Emitted when an NFT is bought by accepting the buy price,
   * indicating that the NFT has been transferred and revenue from the sale distributed.
   * @dev The total buy price that was accepted is `totalFees` + `creatorRev` + `sellerRev`.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param buyer The address of the collector that purchased the NFT using `buy`.
   * @param seller The address of the seller which originally set the buy price.
   * @param totalFees The amount of ETH that was sent to Foundation & referrals for this sale.
   * @param creatorRev The amount of ETH that was sent to the creator for this sale.
   * @param sellerRev The amount of ETH that was sent to the owner for this sale.
   */
  event BuyPriceAccepted(
    address indexed nftContract,
    uint256 indexed tokenId,
    address indexed seller,
    address buyer,
    uint256 totalFees,
    uint256 creatorRev,
    uint256 sellerRev
  );
  /**
   * @notice Emitted when the buy price is removed by the owner of an NFT.
   * @dev The NFT is transferred back to the owner unless it's still escrowed for another market tool,
   * e.g. listed for sale in an auction.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   */
  event BuyPriceCanceled(address indexed nftContract, uint256 indexed tokenId);
  /**
   * @notice Emitted when a buy price is invalidated due to other market activity.
   * @dev This occurs when the buy price is no longer eligible to be accepted,
   * e.g. when a bid is placed in an auction for this NFT.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   */
  event BuyPriceInvalidated(address indexed nftContract, uint256 indexed tokenId);
  /**
   * @notice Emitted when a buy price is set by the owner of an NFT.
   * @dev The NFT is transferred into the market contract for escrow unless it was already escrowed,
   * e.g. for auction listing.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param seller The address of the NFT owner which set the buy price.
   * @param price The price of the NFT.
   */
  event BuyPriceSet(address indexed nftContract, uint256 indexed tokenId, address indexed seller, uint256 price);
  /**
   * @notice [DEPRECATED] use `buyV2` instead.
   * Buy the NFT at the set buy price.
   * `msg.value` must be <= `maxPrice` and any delta will be taken from the account's available FETH balance.
   * @dev `maxPrice` protects the buyer in case a the price is increased but allows the transaction to continue
   * when the price is reduced (and any surplus funds provided are refunded).
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param maxPrice The maximum price to pay for the NFT.
   */
  function buy(address nftContract, uint256 tokenId, uint256 maxPrice) external payable {
    buyV2(nftContract, tokenId, maxPrice, payable(0));
  }
  /**
   * @notice Buy the NFT at the set buy price.
   * `msg.value` must be <= `maxPrice` and any delta will be taken from the account's available FETH balance.
   * @dev `maxPrice` protects the buyer in case a the price is increased but allows the transaction to continue
   * when the price is reduced (and any surplus funds provided are refunded).
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param maxPrice The maximum price to pay for the NFT.
   * @param referrer The address of the referrer.
   */
  function buyV2(address nftContract, uint256 tokenId, uint256 maxPrice, address payable referrer) public payable {
    BuyPrice storage buyPrice = nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    if (buyPrice.price > maxPrice) {
      revert NFTMarketBuyPrice_Cannot_Buy_At_Lower_Price(buyPrice.price);
    } else if (buyPrice.seller == address(0)) {
      revert NFTMarketBuyPrice_Cannot_Buy_Unset_Price();
    }
    _buy(nftContract, tokenId, referrer);
  }
  /**
   * @notice Removes the buy price set for an NFT.
   * @dev The NFT is transferred back to the owner unless it's still escrowed for another market tool,
   * e.g. listed for sale in an auction.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   */
  function cancelBuyPrice(address nftContract, uint256 tokenId) external nonReentrant {
    address seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller == address(0)) {
      // This check is redundant with the next one, but done in order to provide a more clear error message.
      revert NFTMarketBuyPrice_Cannot_Cancel_Unset_Price();
    } else if (seller != msg.sender) {
      revert NFTMarketBuyPrice_Only_Owner_Can_Cancel_Price(seller);
    }
    // Remove the buy price
    delete nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    // Transfer the NFT back to the owner if it is not listed in auction.
    _transferFromEscrowIfAvailable(nftContract, tokenId, msg.sender);
    emit BuyPriceCanceled(nftContract, tokenId);
  }
  /**
   * @notice Sets the buy price for an NFT and escrows it in the market contract.
   * A 0 price is acceptable and valid price you can set, enabling a giveaway to the first collector that calls `buy`.
   * @dev If there is an offer for this amount or higher, that will be accepted instead of setting a buy price.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param price The price at which someone could buy this NFT.
   */
  function setBuyPrice(address nftContract, uint256 tokenId, uint256 price) external nonReentrant {
    // If there is a valid offer at this price or higher, accept that instead.
    if (_autoAcceptOffer(nftContract, tokenId, price)) {
      return;
    }
    if (price > type(uint96).max) {
      // This ensures that no data is lost when storing the price as `uint96`.
      revert NFTMarketBuyPrice_Price_Too_High();
    }
    BuyPrice storage buyPrice = nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    address seller = buyPrice.seller;
    if (buyPrice.price == price && seller != address(0)) {
      revert NFTMarketBuyPrice_Price_Already_Set();
    }
    // Store the new price for this NFT.
    buyPrice.price = uint96(price);
    if (seller == address(0)) {
      // Transfer the NFT into escrow, if it's already in escrow confirm the `msg.sender` is the owner.
      _transferToEscrow(nftContract, tokenId);
      // The price was not previously set for this NFT, store the seller.
      buyPrice.seller = payable(msg.sender);
    } else if (seller != msg.sender) {
      // Buy price was previously set by a different user
      revert NFTMarketBuyPrice_Only_Owner_Can_Set_Price(seller);
    }
    emit BuyPriceSet(nftContract, tokenId, msg.sender, price);
  }
  /**
   * @notice If there is a buy price at this price or lower, accept that and return true.
   */
  function _autoAcceptBuyPrice(address nftContract, uint256 tokenId, uint256 maxPrice)
    internal
    override
    returns (bool)
  {
    BuyPrice storage buyPrice = nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    if (buyPrice.seller == address(0) || buyPrice.price > maxPrice) {
      // No buy price was found, or the price is too high.
      return false;
    }
    _buy(nftContract, tokenId, payable(0));
    return true;
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Invalidates the buy price on a auction start, if one is found.
   */
  function _beforeAuctionStarted(address nftContract, uint256 tokenId) internal virtual override {
    BuyPrice storage buyPrice = nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    if (buyPrice.seller != address(0)) {
      // A buy price was set for this NFT, invalidate it.
      _invalidateBuyPrice(nftContract, tokenId);
    }
    super._beforeAuctionStarted(nftContract, tokenId);
  }
  /**
   * @notice Process the purchase of an NFT at the current buy price.
   * @dev The caller must confirm that the seller != address(0) before calling this function.
   */
  function _buy(address nftContract, uint256 tokenId, address payable referrer) private nonReentrant {
    BuyPrice memory buyPrice = nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    // Remove the buy now price
    delete nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    // Cancel the buyer's offer if there is one in order to free up their FETH balance
    // even if they don't need the FETH for this specific purchase.
    _cancelSendersOffer(nftContract, tokenId);
    _tryUseFETHBalance(buyPrice.price, true);
    // Transfer the NFT to the buyer.
    // The seller was already authorized when the buyPrice was set originally set.
    _transferFromEscrow(nftContract, tokenId, msg.sender, address(0));
    // Distribute revenue for this sale.
    (uint256 totalFees, uint256 creatorRev, uint256 sellerRev) = _distributeFunds(
      nftContract,
      tokenId,
      buyPrice.seller,
      buyPrice.price,
      referrer,
      payable(0),
      0
    );
    emit BuyPriceAccepted(nftContract, tokenId, buyPrice.seller, msg.sender, totalFees, creatorRev, sellerRev);
  }
  /**
   * @notice Clear a buy price and emit BuyPriceInvalidated.
   * @dev The caller must confirm the buy price is set before calling this function.
   */
  function _invalidateBuyPrice(address nftContract, uint256 tokenId) private {
    delete nftContractToTokenIdToBuyPrice[nftContract][tokenId];
    emit BuyPriceInvalidated(nftContract, tokenId);
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Invalidates the buy price if one is found before transferring the NFT.
   * This will revert if there is a buy price set but the `authorizeSeller` is not the owner.
   */
  function _transferFromEscrow(address nftContract, uint256 tokenId, address recipient, address authorizeSeller)
    internal
    virtual
    override
  {
    address seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller != address(0)) {
      // A buy price was set for this NFT.
      // `authorizeSeller != address(0) &&` could be added when other mixins use this flow.
      // ATM that additional check would never return false.
      if (seller != authorizeSeller) {
        // When there is a buy price set, the `buyPrice.seller` is the owner of the NFT.
        revert NFTMarketBuyPrice_Seller_Mismatch(seller);
      }
      // The seller authorization has been confirmed.
      authorizeSeller = address(0);
      // Invalidate the buy price as the NFT will no longer be in escrow.
      _invalidateBuyPrice(nftContract, tokenId);
    }
    super._transferFromEscrow(nftContract, tokenId, recipient, authorizeSeller);
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Checks if there is a buy price set, if not then allow the transfer to proceed.
   */
  function _transferFromEscrowIfAvailable(address nftContract, uint256 tokenId, address recipient)
    internal
    virtual
    override
  {
    address seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller == address(0)) {
      // A buy price has been set for this NFT so it should remain in escrow.
      super._transferFromEscrowIfAvailable(nftContract, tokenId, recipient);
    }
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Checks if the NFT is already in escrow for buy now.
   */
  function _transferToEscrow(address nftContract, uint256 tokenId) internal virtual override {
    address seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller == address(0)) {
      // The NFT is not in escrow for buy now.
      super._transferToEscrow(nftContract, tokenId);
    } else if (seller != msg.sender) {
      // When there is a buy price set, the `seller` is the owner of the NFT.
      revert NFTMarketBuyPrice_Seller_Mismatch(seller);
    }
  }
  /**
   * @notice Returns the buy price details for an NFT if one is available.
   * @dev If no price is found, seller will be address(0) and price will be max uint256.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return seller The address of the owner that listed a buy price for this NFT.
   * Returns `address(0)` if there is no buy price set for this NFT.
   * @return price The price of the NFT.
   * Returns max uint256 if there is no buy price set for this NFT (since a price of 0 is supported).
   */
  function getBuyPrice(address nftContract, uint256 tokenId) external view returns (address seller, uint256 price) {
    seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller == address(0)) {
      return (seller, type(uint256).max);
    }
    price = nftContractToTokenIdToBuyPrice[nftContract][tokenId].price;
  }
  /**
   * @inheritdoc MarketSharedCore
   * @dev Returns the seller if there is a buy price set for this NFT, otherwise
   * bubbles the call up for other considerations.
   */
  function _getSellerOf(address nftContract, uint256 tokenId)
    internal
    view
    virtual
    override(MarketSharedCore, NFTMarketCore)
    returns (address payable seller)
  {
    seller = nftContractToTokenIdToBuyPrice[nftContract][tokenId].seller;
    if (seller == address(0)) {
      seller = super._getSellerOf(nftContract, tokenId);
    }
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[1_000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "../../interfaces/internal/IFethMarket.sol";
import "../shared/Constants.sol";
import "../shared/MarketSharedCore.sol";
error NFTMarketCore_Seller_Not_Found();
/**
 * @title A place for common modifiers and functions used by various NFTMarket mixins, if any.
 * @dev This also leaves a gap which can be used to add a new mixin to the top of the inheritance tree.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketCore is Initializable, MarketSharedCore {
  using AddressUpgradeable for address;
  using AddressUpgradeable for address payable;
  /**
   * @notice If there is a buy price at this amount or lower, accept that and return true.
   */
  function _autoAcceptBuyPrice(address nftContract, uint256 tokenId, uint256 amount) internal virtual returns (bool);
  /**
   * @notice If there is a valid offer at the given price or higher, accept that and return true.
   */
  function _autoAcceptOffer(address nftContract, uint256 tokenId, uint256 minAmount) internal virtual returns (bool);
  /**
   * @notice Notify implementors when an auction has received its first bid.
   * Once a bid is received the sale is guaranteed to the auction winner
   * and other sale mechanisms become unavailable.
   * @dev Implementors of this interface should update internal state to reflect an auction has been kicked off.
   */
  function _beforeAuctionStarted(
    address /*nftContract*/,
    uint256 /*tokenId*/ // solhint-disable-next-line no-empty-blocks
  ) internal virtual {
    // No-op
  }
  /**
   * @notice Cancel the `msg.sender`'s offer if there is one, freeing up their FETH balance.
   * @dev This should be used when it does not make sense to keep the original offer around,
   * e.g. if a collector accepts a Buy Price then keeping the offer around is not necessary.
   */
  function _cancelSendersOffer(address nftContract, uint256 tokenId) internal virtual;
  /**
   * @notice Transfers the NFT from escrow and clears any state tracking this escrowed NFT.
   * @param authorizeSeller The address of the seller pending authorization.
   * Once it's been authorized by one of the escrow managers, it should be set to address(0)
   * indicated that it's no longer pending authorization.
   */
  function _transferFromEscrow(address nftContract, uint256 tokenId, address recipient, address authorizeSeller)
    internal
    virtual
  {
    if (authorizeSeller != address(0)) {
      revert NFTMarketCore_Seller_Not_Found();
    }
    IERC721(nftContract).transferFrom(address(this), recipient, tokenId);
  }
  /**
   * @notice Transfers the NFT from escrow unless there is another reason for it to remain in escrow.
   */
  function _transferFromEscrowIfAvailable(address nftContract, uint256 tokenId, address recipient) internal virtual {
    _transferFromEscrow(nftContract, tokenId, recipient, address(0));
  }
  /**
   * @notice Transfers an NFT into escrow,
   * if already there this requires the msg.sender is authorized to manage the sale of this NFT.
   */
  function _transferToEscrow(address nftContract, uint256 tokenId) internal virtual {
    IERC721(nftContract).transferFrom(msg.sender, address(this), tokenId);
  }
  /**
   * @dev Determines the minimum amount when increasing an existing offer or bid.
   */
  function _getMinIncrement(uint256 currentAmount) internal pure returns (uint256) {
    uint256 minIncrement = currentAmount;
    unchecked {
      minIncrement /= MIN_PERCENT_INCREMENT_DENOMINATOR;
    }
    if (minIncrement == 0) {
      // Since minIncrement reduces from the currentAmount, this cannot overflow.
      // The next amount must be at least 1 wei greater than the current.
      return currentAmount + 1;
    }
    return minIncrement + currentAmount;
  }
  /**
   * @inheritdoc MarketSharedCore
   */
  function _getSellerOf(address nftContract, uint256 tokenId)
    internal
    view
    virtual
    override
    returns (address payable seller)
  // solhint-disable-next-line no-empty-blocks
  {
    // No-op by default
  }
  /**
   * @inheritdoc MarketSharedCore
   */
  function _getSellerOrOwnerOf(address nftContract, uint256 tokenId)
    internal
    view
    override
    returns (address payable sellerOrOwner)
  {
    sellerOrOwner = _getSellerOf(nftContract, tokenId);
    if (sellerOrOwner == address(0)) {
      sellerOrOwner = payable(IERC721(nftContract).ownerOf(tokenId));
    }
  }
  /**
   * @notice Checks if an escrowed NFT is currently in active auction.
   * @return Returns false if the auction has ended, even if it has not yet been settled.
   */
  function _isInActiveAuction(address nftContract, uint256 tokenId) internal view virtual returns (bool);
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   * @dev 50 slots were consumed by adding `ReentrancyGuard`.
   */
  uint256[450] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "../shared/Constants.sol";
/// @param curator The curator for this exhibition.
error NFTMarketExhibition_Caller_Is_Not_Curator(address curator);
error NFTMarketExhibition_Can_Not_Add_Dupe_Seller();
error NFTMarketExhibition_Curator_Automatically_Allowed();
error NFTMarketExhibition_Exhibition_Does_Not_Exist();
error NFTMarketExhibition_Seller_Not_Allowed_In_Exhibition();
error NFTMarketExhibition_Sellers_Required();
error NFTMarketExhibition_Take_Rate_Too_High();
error NFTMarketExhibition_Too_Many_Sellers();
/**
 * @title Enables a curation surface for sellers to exhibit their NFTs.
 */
abstract contract NFTMarketExhibition {
  /**
   * @notice Stores details about an exhibition.
   */
  struct Exhibition {
    /// @notice The curator which created this exhibition.
    address payable curator;
    /// @notice The rate of the sale which goes to the curator.
    uint16 takeRateInBasisPoints;
    // 80-bits available in the first slot
    /// @notice A name for the exhibition.
    string name;
  }
  /// @notice Tracks the next sequence ID to be assigned to an exhibition.
  uint256 private latestExhibitionId;
  /// @notice Maps the exhibition ID to their details.
  mapping(uint256 => Exhibition) private idToExhibition;
  /// @notice Maps an exhibition to the list of sellers allowed to list with it.
  mapping(uint256 => mapping(address => bool)) private exhibitionIdToSellerToIsAllowed;
  /// @notice Maps an NFT to the exhibition it was listed with.
  mapping(address => mapping(uint256 => uint256)) private nftContractToTokenIdToExhibitionId;
  /// @dev The max number of sellers that can be approved for an exhibition.
  uint256 private constant MAX_SELLER_LIST_LENGTH = 50;
  /**
   * @notice Emitted when an exhibition is created.
   * @param exhibitionId The ID for this exhibition.
   * @param curator The curator which created this exhibition.
   * @param name The name for this exhibition.
   * @param takeRateInBasisPoints The rate of the sale which goes to the curator.
   */
  event ExhibitionCreated(
    uint256 indexed exhibitionId,
    address indexed curator,
    string name,
    uint16 takeRateInBasisPoints
  );
  /**
   * @notice Emitted when an exhibition is deleted.
   * @param exhibitionId The ID for the exhibition.
   */
  event ExhibitionDeleted(uint256 indexed exhibitionId);
  /**
   * @notice Emitted when an NFT is listed in an exhibition.
   * @param nftContract The contract address of the NFT.
   * @param tokenId The ID of the NFT.
   * @param exhibitionId The ID of the exhibition it was listed with.
   */
  event NftAddedToExhibition(address indexed nftContract, uint256 indexed tokenId, uint256 indexed exhibitionId);
  /**
   * @notice Emitted when an NFT is no longer associated with an exhibition for reasons other than a sale.
   * @param nftContract The contract address of the NFT.
   * @param tokenId The ID of the NFT.
   * @param exhibitionId The ID of the exhibition it was originally listed with.
   */
  event NftRemovedFromExhibition(address indexed nftContract, uint256 indexed tokenId, uint256 indexed exhibitionId);
  /**
   * @notice Emitted when sellers are granted access to list with an exhibition.
   * @param exhibitionId The ID of the exhibition.
   * @param sellers The list of sellers granted access.
   */
  event SellersAddedToExhibition(uint256 indexed exhibitionId, address[] sellers);
  /// @notice Requires the caller to be the curator of the exhibition.
  modifier onlyExhibitionCurator(uint256 exhibitionId) {
    address curator = idToExhibition[exhibitionId].curator;
    if (curator != msg.sender) {
      if (curator == address(0)) {
        // If the curator is not a match, check if the exhibition exists in order to provide a better error message.
        revert NFTMarketExhibition_Exhibition_Does_Not_Exist();
      }
      revert NFTMarketExhibition_Caller_Is_Not_Curator(curator);
    }
    _;
  }
  /**
   * @notice Creates an exhibition.
   * @param name The name for this exhibition.
   * @param takeRateInBasisPoints The rate of the sale which goes to the msg.sender as the curator of this exhibition.
   * @param sellers The list of sellers allowed to list with this exhibition.
   * @dev The list of sellers may not be modified after the exhibition is created.
   */
  function createExhibition(string calldata name, uint16 takeRateInBasisPoints, address[] calldata sellers)
    external
    returns (uint256 exhibitionId)
  {
    if (takeRateInBasisPoints > MAX_EXHIBITION_TAKE_RATE) {
      revert NFTMarketExhibition_Take_Rate_Too_High();
    }
    if (sellers.length == 0) {
      revert NFTMarketExhibition_Sellers_Required();
    }
    if (sellers.length > MAX_SELLER_LIST_LENGTH) {
      revert NFTMarketExhibition_Too_Many_Sellers();
    }
    // Create exhibition
    unchecked {
      exhibitionId = ++latestExhibitionId;
    }
    idToExhibition[exhibitionId] = Exhibition({
      curator: payable(msg.sender),
      takeRateInBasisPoints: takeRateInBasisPoints,
      name: name
    });
    emit ExhibitionCreated({
      exhibitionId: exhibitionId,
      curator: msg.sender,
      name: name,
      takeRateInBasisPoints: takeRateInBasisPoints
    });
    // Populate allow list
    for (uint256 i = 0; i < sellers.length; ) {
      address seller = sellers[i];
      if (exhibitionIdToSellerToIsAllowed[exhibitionId][seller]) {
        revert NFTMarketExhibition_Can_Not_Add_Dupe_Seller();
      }
      if (seller == msg.sender) {
        revert NFTMarketExhibition_Curator_Automatically_Allowed();
      }
      exhibitionIdToSellerToIsAllowed[exhibitionId][seller] = true;
      unchecked {
        ++i;
      }
    }
    emit SellersAddedToExhibition(exhibitionId, sellers);
  }
  /**
   * @notice Deletes an exhibition created by the msg.sender.
   * @param exhibitionId The ID of the exhibition to delete.
   * @dev Once deleted, any NFTs listed with this exhibition will still be listed but will no longer be associated with
   * or share revenue with the exhibition.
   */
  function deleteExhibition(uint256 exhibitionId) external onlyExhibitionCurator(exhibitionId) {
    delete idToExhibition[exhibitionId];
    emit ExhibitionDeleted(exhibitionId);
  }
  /**
   * @notice Assigns an NFT to an exhibition.
   * @param nftContract The contract address of the NFT.
   * @param tokenId The ID of the NFT.
   * @param exhibitionId The ID of the exhibition to list the NFT with.
   * @dev This call is a no-op if the `exhibitionId` is 0.
   */
  function _addNftToExhibition(address nftContract, uint256 tokenId, uint256 exhibitionId) internal {
    if (exhibitionId != 0) {
      Exhibition storage exhibition = idToExhibition[exhibitionId];
      if (exhibition.curator == address(0)) {
        revert NFTMarketExhibition_Exhibition_Does_Not_Exist();
      }
      if (!exhibitionIdToSellerToIsAllowed[exhibitionId][msg.sender] && exhibition.curator != msg.sender) {
        revert NFTMarketExhibition_Seller_Not_Allowed_In_Exhibition();
      }
      nftContractToTokenIdToExhibitionId[nftContract][tokenId] = exhibitionId;
      emit NftAddedToExhibition(nftContract, tokenId, exhibitionId);
    }
  }
  /**
   * @notice Returns exhibition details if this NFT was assigned to one, and clears the assignment.
   * @return paymentAddress The address to send the payment to, or address(0) if n/a.
   * @return takeRateInBasisPoints The rate of the sale which goes to the curator, or 0 if n/a.
   * @dev This does not emit NftRemovedFromExhibition, instead it's expected that SellerReferralPaid will be emitted.
   */
  function _getExhibitionForPayment(address nftContract, uint256 tokenId)
    internal
    returns (address payable paymentAddress, uint16 takeRateInBasisPoints)
  {
    uint256 exhibitionId = nftContractToTokenIdToExhibitionId[nftContract][tokenId];
    if (exhibitionId != 0) {
      paymentAddress = idToExhibition[exhibitionId].curator;
      takeRateInBasisPoints = idToExhibition[exhibitionId].takeRateInBasisPoints;
      delete nftContractToTokenIdToExhibitionId[nftContract][tokenId];
    }
  }
  /**
   * @notice Clears an NFT's association with an exhibition.
   */
  function _removeNftFromExhibition(address nftContract, uint256 tokenId) internal {
    uint256 exhibitionId = nftContractToTokenIdToExhibitionId[nftContract][tokenId];
    if (exhibitionId != 0) {
      delete nftContractToTokenIdToExhibitionId[nftContract][tokenId];
      emit NftRemovedFromExhibition(nftContract, tokenId, exhibitionId);
    }
  }
  /**
   * @notice Returns exhibition details for a given ID.
   * @param exhibitionId The ID of the exhibition to look up.
   * @return name The name of the exhibition.
   * @return curator The curator of the exhibition.
   * @return takeRateInBasisPoints The rate of the sale which goes to the curator.
   * @dev If the exhibition does not exist or has since been deleted, the curator will be address(0).
   */
  function getExhibition(uint256 exhibitionId)
    external
    view
    returns (string memory name, address payable curator, uint16 takeRateInBasisPoints)
  {
    Exhibition memory exhibition = idToExhibition[exhibitionId];
    name = exhibition.name;
    curator = exhibition.curator;
    takeRateInBasisPoints = exhibition.takeRateInBasisPoints;
  }
  /**
   * @notice Returns the exhibition ID for a given NFT.
   * @param nftContract The contract address of the NFT.
   * @param tokenId The ID of the NFT.
   * @return exhibitionId The ID of the exhibition this NFT is assigned to, or 0 if it's not assigned to an exhibition.
   */
  function getExhibitionIdForNft(address nftContract, uint256 tokenId) external view returns (uint256 exhibitionId) {
    exhibitionId = nftContractToTokenIdToExhibitionId[nftContract][tokenId];
  }
  /**
   * @notice Checks if a given seller is approved to list with a given exhibition.
   * @param exhibitionId The ID of the exhibition to check.
   * @param seller The address of the seller to check.
   * @return allowedSeller True if the seller is approved to list with the exhibition.
   */
  function isAllowedSellerForExhibition(uint256 exhibitionId, address seller)
    external
    view
    returns (bool allowedSeller)
  {
    address curator = idToExhibition[exhibitionId].curator;
    if (curator != address(0)) {
      allowedSeller = exhibitionIdToSellerToIsAllowed[exhibitionId][seller] || seller == curator;
    }
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   * @dev This file uses a total of 500 slots.
   */
  uint256[496] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "../../libraries/TimeLibrary.sol";
import "../shared/MarketFees.sol";
import "../shared/FoundationTreasuryNode.sol";
import "../shared/FETHNode.sol";
import "../shared/SendValueWithFallbackWithdraw.sol";
import "./NFTMarketCore.sol";
error NFTMarketOffer_Cannot_Be_Made_While_In_Auction();
/// @param currentOfferAmount The current highest offer available for this NFT.
error NFTMarketOffer_Offer_Below_Min_Amount(uint256 currentOfferAmount);
/// @param expiry The time at which the offer had expired.
error NFTMarketOffer_Offer_Expired(uint256 expiry);
/// @param currentOfferFrom The address of the collector which has made the current highest offer.
error NFTMarketOffer_Offer_From_Does_Not_Match(address currentOfferFrom);
/// @param minOfferAmount The minimum amount that must be offered in order for it to be accepted.
error NFTMarketOffer_Offer_Must_Be_At_Least_Min_Amount(uint256 minOfferAmount);
/**
 * @title Allows collectors to make an offer for an NFT, valid for 24-25 hours.
 * @notice Funds are escrowed in the FETH ERC-20 token contract.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketOffer is
  Initializable,
  FoundationTreasuryNode,
  FETHNode,
  NFTMarketCore,
  ReentrancyGuardUpgradeable,
  SendValueWithFallbackWithdraw,
  MarketFees
{
  using AddressUpgradeable for address;
  using TimeLibrary for uint32;
  /// @notice Stores offer details for a specific NFT.
  struct Offer {
    // Slot 1: When increasing an offer, only this slot is updated.
    /// @notice The expiration timestamp of when this offer expires.
    uint32 expiration;
    /// @notice The amount, in wei, of the highest offer.
    uint96 amount;
    /// @notice First slot (of 16B) used for the offerReferrerAddress.
    // The offerReferrerAddress is the address used to pay the
    // referrer on an accepted offer.
    uint128 offerReferrerAddressSlot0;
    // Slot 2: When the buyer changes, both slots need updating
    /// @notice The address of the collector who made this offer.
    address buyer;
    /// @notice Second slot (of 4B) used for the offerReferrerAddress.
    uint32 offerReferrerAddressSlot1;
    // 96 bits (12B) are available in slot 1.
  }
  /// @notice Stores the highest offer for each NFT.
  mapping(address => mapping(uint256 => Offer)) private nftContractToIdToOffer;
  /**
   * @notice Emitted when an offer is accepted,
   * indicating that the NFT has been transferred and revenue from the sale distributed.
   * @dev The accepted total offer amount is `totalFees` + `creatorRev` + `sellerRev`.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param buyer The address of the collector that made the offer which was accepted.
   * @param seller The address of the seller which accepted the offer.
   * @param totalFees The amount of ETH that was sent to Foundation & referrals for this sale.
   * @param creatorRev The amount of ETH that was sent to the creator for this sale.
   * @param sellerRev The amount of ETH that was sent to the owner for this sale.
   */
  event OfferAccepted(
    address indexed nftContract,
    uint256 indexed tokenId,
    address indexed buyer,
    address seller,
    uint256 totalFees,
    uint256 creatorRev,
    uint256 sellerRev
  );
  /**
   * @notice Emitted when an offer is invalidated due to other market activity.
   * When this occurs, the collector which made the offer has their FETH balance unlocked
   * and the funds are available to place other offers or to be withdrawn.
   * @dev This occurs when the offer is no longer eligible to be accepted,
   * e.g. when a bid is placed in an auction for this NFT.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   */
  event OfferInvalidated(address indexed nftContract, uint256 indexed tokenId);
  /**
   * @notice Emitted when an offer is made.
   * @dev The `amount` of the offer is locked in the FETH ERC-20 contract, guaranteeing that the funds
   * remain available until the `expiration` date.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param buyer The address of the collector that made the offer to buy this NFT.
   * @param amount The amount, in wei, of the offer.
   * @param expiration The expiration timestamp for the offer.
   */
  event OfferMade(
    address indexed nftContract,
    uint256 indexed tokenId,
    address indexed buyer,
    uint256 amount,
    uint256 expiration
  );
  /**
   * @notice Accept the highest offer for an NFT.
   * @dev The offer must not be expired and the NFT owned + approved by the seller or
   * available in the market contract's escrow.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param offerFrom The address of the collector that you wish to sell to.
   * If the current highest offer is not from this user, the transaction will revert.
   * This could happen if a last minute offer was made by another collector,
   * and would require the seller to try accepting again.
   * @param minAmount The minimum value of the highest offer for it to be accepted.
   * If the value is less than this amount, the transaction will revert.
   * This could happen if the original offer expires and is replaced with a smaller offer.
   */
  function acceptOffer(address nftContract, uint256 tokenId, address offerFrom, uint256 minAmount)
    external
    nonReentrant
  {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    // Validate offer expiry and amount
    if (offer.expiration.hasExpired()) {
      revert NFTMarketOffer_Offer_Expired(offer.expiration);
    } else if (offer.amount < minAmount) {
      revert NFTMarketOffer_Offer_Below_Min_Amount(offer.amount);
    }
    // Validate the buyer
    if (offer.buyer != offerFrom) {
      revert NFTMarketOffer_Offer_From_Does_Not_Match(offer.buyer);
    }
    _acceptOffer(nftContract, tokenId);
  }
  /**
   * @notice Make an offer for any NFT which is valid for 24-25 hours.
   * The funds will be locked in the FETH token contract and become available once the offer is outbid or has expired.
   * @dev An offer may be made for an NFT before it is minted, although we generally not recommend you do that.
   * If there is a buy price set at this price or lower, that will be accepted instead of making an offer.
   * `msg.value` must be <= `amount` and any delta will be taken from the account's available FETH balance.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param amount The amount to offer for this NFT.
   * @param referrer The referrer address for the offer.
   * @return expiration The timestamp for when this offer will expire.
   * This is provided as a return value in case another contract would like to leverage this information,
   * user's should refer to the expiration in the `OfferMade` event log.
   * If the buy price is accepted instead, `0` is returned as the expiration since that's n/a.
   */
  function makeOfferV2(address nftContract, uint256 tokenId, uint256 amount, address payable referrer)
    external
    payable
    returns (uint256 expiration)
  {
    // If there is a buy price set at this price or lower, accept that instead.
    if (_autoAcceptBuyPrice(nftContract, tokenId, amount)) {
      // If the buy price is accepted, `0` is returned as the expiration since that's n/a.
      return 0;
    }
    if (_isInActiveAuction(nftContract, tokenId)) {
      revert NFTMarketOffer_Cannot_Be_Made_While_In_Auction();
    }
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (offer.expiration.hasExpired()) {
      // This is a new offer for the NFT (no other offer found or the previous offer expired)
      // Lock the offer amount in FETH until the offer expires in 24-25 hours.
      expiration = feth.marketLockupFor{ value: msg.value }(msg.sender, amount);
    } else {
      // A previous offer exists and has not expired
      uint256 minIncrement = _getMinIncrement(offer.amount);
      if (amount < minIncrement) {
        // A non-trivial increase in price is required to avoid sniping
        revert NFTMarketOffer_Offer_Must_Be_At_Least_Min_Amount(minIncrement);
      }
      // Unlock the previous offer so that the FETH tokens are available for other offers or to transfer / withdraw
      // and lock the new offer amount in FETH until the offer expires in 24-25 hours.
      expiration = feth.marketChangeLockup{ value: msg.value }(
        offer.buyer,
        offer.expiration,
        offer.amount,
        msg.sender,
        amount
      );
    }
    // Record offer details
    offer.buyer = msg.sender;
    // The FETH contract guarantees that the expiration fits into 32 bits.
    offer.expiration = uint32(expiration);
    // `amount` is capped by the ETH provided, which cannot realistically overflow 96 bits.
    offer.amount = uint96(amount);
    // Set offerReferrerAddressSlot0 to the first 16B of the referrer address.
    // By shifting the referrer 32 bits to the right we obtain the first 16B.
    offer.offerReferrerAddressSlot0 = uint128(uint160(address(referrer)) >> 32);
    // Set offerReferrerAddressSlot1 to the last 4B of the referrer address.
    // By casting the referrer address to 32bits we discard the first 16B.
    offer.offerReferrerAddressSlot1 = uint32(uint160(address(referrer)));
    emit OfferMade(nftContract, tokenId, msg.sender, amount, expiration);
  }
  /**
   * @notice Accept the highest offer for an NFT from the `msg.sender` account.
   * The NFT will be transferred to the buyer and revenue from the sale will be distributed.
   * @dev The caller must validate the expiry and amount before calling this helper.
   * This may invalidate other market tools, such as clearing the buy price if set.
   */
  function _acceptOffer(address nftContract, uint256 tokenId) private {
    Offer memory offer = nftContractToIdToOffer[nftContract][tokenId];
    // Remove offer
    delete nftContractToIdToOffer[nftContract][tokenId];
    // Withdraw ETH from the buyer's account in the FETH token contract.
    feth.marketWithdrawLocked(offer.buyer, offer.expiration, offer.amount);
    // Transfer the NFT to the buyer.
    try
      IERC721(nftContract).transferFrom(msg.sender, offer.buyer, tokenId) // solhint-disable-next-line no-empty-blocks
    {
      // NFT was in the seller's wallet so the transfer is complete.
    } catch {
      // If the transfer fails then attempt to transfer from escrow instead.
      // This should revert if `msg.sender` is not the owner of this NFT.
      _transferFromEscrow(nftContract, tokenId, offer.buyer, msg.sender);
    }
    // Distribute revenue for this sale leveraging the ETH received from the FETH contract in the line above.
    (uint256 totalFees, uint256 creatorRev, uint256 sellerRev) = _distributeFunds(
      nftContract,
      tokenId,
      payable(msg.sender),
      offer.amount,
      _getOfferReferrerFromSlots(offer.offerReferrerAddressSlot0, offer.offerReferrerAddressSlot1),
      payable(0),
      0
    );
    emit OfferAccepted(nftContract, tokenId, offer.buyer, msg.sender, totalFees, creatorRev, sellerRev);
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Invalidates the highest offer when an auction is kicked off, if one is found.
   */
  function _beforeAuctionStarted(address nftContract, uint256 tokenId) internal virtual override {
    _invalidateOffer(nftContract, tokenId);
    super._beforeAuctionStarted(nftContract, tokenId);
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _autoAcceptOffer(address nftContract, uint256 tokenId, uint256 minAmount) internal override returns (bool) {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (offer.expiration.hasExpired() || offer.amount < minAmount) {
      // No offer found, the most recent offer is now expired, or the highest offer is below the minimum amount.
      return false;
    }
    _acceptOffer(nftContract, tokenId);
    return true;
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _cancelSendersOffer(address nftContract, uint256 tokenId) internal override {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (offer.buyer == msg.sender) {
      _invalidateOffer(nftContract, tokenId);
    }
  }
  /**
   * @notice Invalidates the offer and frees ETH from escrow, if the offer has not already expired.
   * @dev Offers are not invalidated when the NFT is purchased by accepting the buy price unless it
   * was purchased by the same user.
   * The user which just purchased the NFT may have buyer's remorse and promptly decide they want a fast exit,
   * accepting a small loss to limit their exposure.
   */
  function _invalidateOffer(address nftContract, uint256 tokenId) private {
    if (!nftContractToIdToOffer[nftContract][tokenId].expiration.hasExpired()) {
      // An offer was found and it has not already expired
      Offer memory offer = nftContractToIdToOffer[nftContract][tokenId];
      // Remove offer
      delete nftContractToIdToOffer[nftContract][tokenId];
      // Unlock the offer so that the FETH tokens are available for other offers or to transfer / withdraw
      feth.marketUnlockFor(offer.buyer, offer.expiration, offer.amount);
      emit OfferInvalidated(nftContract, tokenId);
    }
  }
  /**
   * @notice Returns the minimum amount a collector must offer for this NFT in order for the offer to be valid.
   * @dev Offers for this NFT which are less than this value will revert.
   * Once the previous offer has expired smaller offers can be made.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return minimum The minimum amount that must be offered for this NFT.
   */
  function getMinOfferAmount(address nftContract, uint256 tokenId) external view returns (uint256 minimum) {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (!offer.expiration.hasExpired()) {
      return _getMinIncrement(offer.amount);
    }
    // Absolute min is anything > 0
    return 1;
  }
  /**
   * @notice Returns details about the current highest offer for an NFT.
   * @dev Default values are returned if there is no offer or the offer has expired.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return buyer The address of the buyer that made the current highest offer.
   * Returns `address(0)` if there is no offer or the most recent offer has expired.
   * @return expiration The timestamp that the current highest offer expires.
   * Returns `0` if there is no offer or the most recent offer has expired.
   * @return amount The amount being offered for this NFT.
   * Returns `0` if there is no offer or the most recent offer has expired.
   */
  function getOffer(address nftContract, uint256 tokenId)
    external
    view
    returns (address buyer, uint256 expiration, uint256 amount)
  {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (offer.expiration.hasExpired()) {
      // Offer not found or has expired
      return (address(0), 0, 0);
    }
    // An offer was found and it has not yet expired.
    return (offer.buyer, offer.expiration, offer.amount);
  }
  /**
   * @notice Returns the current highest offer's referral for an NFT.
   * @dev Default value of `payable(0)` is returned if
   * there is no offer, the offer has expired or does not have a referral.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return referrer The payable address of the referrer for the offer.
   */
  function getOfferReferrer(address nftContract, uint256 tokenId) external view returns (address payable referrer) {
    Offer storage offer = nftContractToIdToOffer[nftContract][tokenId];
    if (offer.expiration.hasExpired()) {
      // Offer not found or has expired
      return payable(0);
    }
    return _getOfferReferrerFromSlots(offer.offerReferrerAddressSlot0, offer.offerReferrerAddressSlot1);
  }
  function _getOfferReferrerFromSlots(uint128 offerReferrerAddressSlot0, uint32 offerReferrerAddressSlot1)
    private
    pure
    returns (address payable referrer)
  {
    // Stitch offerReferrerAddressSlot0 and offerReferrerAddressSlot1 to obtain the payable offerReferrerAddress.
    // Left shift offerReferrerAddressSlot0 by 32 bits OR it with offerReferrerAddressSlot1.
    referrer = payable(address((uint160(offerReferrerAddressSlot0) << 32) | uint160(offerReferrerAddressSlot1)));
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[1_000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @title Reserves space previously occupied by private sales.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketPrivateSaleGap {
  // Original data:
  // bytes32 private __gap_was_DOMAIN_SEPARATOR;
  // mapping(address => mapping(uint256 => mapping(address => mapping(address => mapping(uint256 =>
  //   mapping(uint256 => bool)))))) private privateSaleInvalidated;
  // uint256[999] private __gap;
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   * @dev 1 slot was consumed by privateSaleInvalidated.
   */
  uint256[1001] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import "../../libraries/TimeLibrary.sol";
import "../shared/FoundationTreasuryNode.sol";
import "../shared/FETHNode.sol";
import "../shared/MarketFees.sol";
import "../shared/MarketSharedCore.sol";
import "../shared/SendValueWithFallbackWithdraw.sol";
import "./NFTMarketAuction.sol";
import "./NFTMarketCore.sol";
import "./NFTMarketExhibition.sol";
/// @param auctionId The already listed auctionId for this NFT.
error NFTMarketReserveAuction_Already_Listed(uint256 auctionId);
/// @param minAmount The minimum amount that must be bid in order for it to be accepted.
error NFTMarketReserveAuction_Bid_Must_Be_At_Least_Min_Amount(uint256 minAmount);
/// @param reservePrice The current reserve price.
error NFTMarketReserveAuction_Cannot_Bid_Lower_Than_Reserve_Price(uint256 reservePrice);
/// @param endTime The timestamp at which the auction had ended.
error NFTMarketReserveAuction_Cannot_Bid_On_Ended_Auction(uint256 endTime);
error NFTMarketReserveAuction_Cannot_Bid_On_Nonexistent_Auction();
error NFTMarketReserveAuction_Cannot_Finalize_Already_Settled_Auction();
/// @param endTime The timestamp at which the auction will end.
error NFTMarketReserveAuction_Cannot_Finalize_Auction_In_Progress(uint256 endTime);
error NFTMarketReserveAuction_Cannot_Rebid_Over_Outstanding_Bid();
error NFTMarketReserveAuction_Cannot_Update_Auction_In_Progress();
/// @param maxDuration The maximum configuration for a duration of the auction, in seconds.
error NFTMarketReserveAuction_Exceeds_Max_Duration(uint256 maxDuration);
/// @param extensionDuration The extension duration, in seconds.
error NFTMarketReserveAuction_Less_Than_Extension_Duration(uint256 extensionDuration);
error NFTMarketReserveAuction_Must_Set_Non_Zero_Reserve_Price();
/// @param seller The current owner of the NFT.
error NFTMarketReserveAuction_Not_Matching_Seller(address seller);
/// @param owner The current owner of the NFT.
error NFTMarketReserveAuction_Only_Owner_Can_Update_Auction(address owner);
error NFTMarketReserveAuction_Price_Already_Set();
error NFTMarketReserveAuction_Too_Much_Value_Provided();
/**
 * @title Allows the owner of an NFT to list it in auction.
 * @notice NFTs in auction are escrowed in the market contract.
 * @dev There is room to optimize the storage for auctions, significantly reducing gas costs.
 * This may be done in the future, but for now it will remain as is in order to ease upgrade compatibility.
 * @author batu-inal & HardlyDifficult
 */
abstract contract NFTMarketReserveAuction is
  Initializable,
  FoundationTreasuryNode,
  FETHNode,
  MarketSharedCore,
  NFTMarketCore,
  ReentrancyGuardUpgradeable,
  SendValueWithFallbackWithdraw,
  MarketFees,
  NFTMarketExhibition,
  NFTMarketAuction
{
  using TimeLibrary for uint256;
  /// @notice The auction configuration for a specific NFT.
  struct ReserveAuction {
    /// @notice The address of the NFT contract.
    address nftContract;
    /// @notice The id of the NFT.
    uint256 tokenId;
    /// @notice The owner of the NFT which listed it in auction.
    address payable seller;
    /// @notice The duration for this auction.
    uint256 duration;
    /// @notice The extension window for this auction.
    uint256 extensionDuration;
    /// @notice The time at which this auction will not accept any new bids.
    /// @dev This is `0` until the first bid is placed.
    uint256 endTime;
    /// @notice The current highest bidder in this auction.
    /// @dev This is `address(0)` until the first bid is placed.
    address payable bidder;
    /// @notice The latest price of the NFT in this auction.
    /// @dev This is set to the reserve price, and then to the highest bid once the auction has started.
    uint256 amount;
  }
  /// @notice Stores the auction configuration for a specific NFT.
  /// @dev This allows us to modify the storage struct without changing external APIs.
  struct ReserveAuctionStorage {
    /// @notice The address of the NFT contract.
    address nftContract;
    /// @notice The id of the NFT.
    uint256 tokenId;
    /// @notice The owner of the NFT which listed it in auction.
    address payable seller;
    /// @notice First slot (of 12B) used for the bidReferrerAddress.
    /// The bidReferrerAddress is the address used to pay the referrer on finalize.
    /// @dev This approach is used in order to pack storage, saving gas.
    uint96 bidReferrerAddressSlot0;
    /// @dev This field is no longer used.
    uint256 __gap_was_duration;
    /// @dev This field is no longer used.
    uint256 __gap_was_extensionDuration;
    /// @notice The time at which this auction will not accept any new bids.
    /// @dev This is `0` until the first bid is placed.
    uint256 endTime;
    /// @notice The current highest bidder in this auction.
    /// @dev This is `address(0)` until the first bid is placed.
    address payable bidder;
    /// @notice Second slot (of 8B) used for the bidReferrerAddress.
    uint64 bidReferrerAddressSlot1;
    /// @notice The latest price of the NFT in this auction.
    /// @dev This is set to the reserve price, and then to the highest bid once the auction has started.
    uint256 amount;
  }
  /// @notice The auction configuration for a specific auction id.
  mapping(address => mapping(uint256 => uint256)) private nftContractToTokenIdToAuctionId;
  /// @notice The auction id for a specific NFT.
  /// @dev This is deleted when an auction is finalized or canceled.
  mapping(uint256 => ReserveAuctionStorage) private auctionIdToAuction;
  /**
   * @dev Removing old unused variables in an upgrade safe way. Was:
   * uint256 private __gap_was_minPercentIncrementInBasisPoints;
   * uint256 private __gap_was_maxBidIncrementRequirement;
   * uint256 private __gap_was_duration;
   * uint256 private __gap_was_extensionDuration;
   * uint256 private __gap_was_goLiveDate;
   */
  uint256[5] private __gap_was_config;
  /// @notice How long an auction lasts for once the first bid has been received.
  uint256 private immutable DURATION;
  /// @notice The window for auction extensions, any bid placed in the final 15 minutes
  /// of an auction will reset the time remaining to 15 minutes.
  uint256 private constant EXTENSION_DURATION = 15 minutes;
  /// @notice Caps the max duration that may be configured so that overflows will not occur.
  uint256 private constant MAX_MAX_DURATION = 1_000 days;
  /**
   * @notice Emitted when a bid is placed.
   * @param auctionId The id of the auction this bid was for.
   * @param bidder The address of the bidder.
   * @param amount The amount of the bid.
   * @param endTime The new end time of the auction (which may have been set or extended by this bid).
   */
  event ReserveAuctionBidPlaced(uint256 indexed auctionId, address indexed bidder, uint256 amount, uint256 endTime);
  /**
   * @notice Emitted when an auction is canceled.
   * @dev This is only possible if the auction has not received any bids.
   * @param auctionId The id of the auction that was canceled.
   */
  event ReserveAuctionCanceled(uint256 indexed auctionId);
  /**
   * @notice Emitted when an NFT is listed for auction.
   * @param seller The address of the seller.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param duration The duration of the auction (always 24-hours).
   * @param extensionDuration The duration of the auction extension window (always 15-minutes).
   * @param reservePrice The reserve price to kick off the auction.
   * @param auctionId The id of the auction that was created.
   */
  event ReserveAuctionCreated(
    address indexed seller,
    address indexed nftContract,
    uint256 indexed tokenId,
    uint256 duration,
    uint256 extensionDuration,
    uint256 reservePrice,
    uint256 auctionId
  );
  /**
   * @notice Emitted when an auction that has already ended is finalized,
   * indicating that the NFT has been transferred and revenue from the sale distributed.
   * @dev The amount of the highest bid / final sale price for this auction
   * is `totalFees` + `creatorRev` + `sellerRev`.
   * @param auctionId The id of the auction that was finalized.
   * @param seller The address of the seller.
   * @param bidder The address of the highest bidder that won the NFT.
   * @param totalFees The amount of ETH that was sent to Foundation & referrals for this sale.
   * @param creatorRev The amount of ETH that was sent to the creator for this sale.
   * @param sellerRev The amount of ETH that was sent to the owner for this sale.
   */
  event ReserveAuctionFinalized(
    uint256 indexed auctionId,
    address indexed seller,
    address indexed bidder,
    uint256 totalFees,
    uint256 creatorRev,
    uint256 sellerRev
  );
  /**
   * @notice Emitted when an auction is invalidated due to other market activity.
   * @dev This occurs when the NFT is sold another way, such as with `buy` or `acceptOffer`.
   * @param auctionId The id of the auction that was invalidated.
   */
  event ReserveAuctionInvalidated(uint256 indexed auctionId);
  /**
   * @notice Emitted when the auction's reserve price is changed.
   * @dev This is only possible if the auction has not received any bids.
   * @param auctionId The id of the auction that was updated.
   * @param reservePrice The new reserve price for the auction.
   */
  event ReserveAuctionUpdated(uint256 indexed auctionId, uint256 reservePrice);
  /// @notice Confirms that the reserve price is not zero.
  modifier onlyValidAuctionConfig(uint256 reservePrice) {
    if (reservePrice == 0) {
      revert NFTMarketReserveAuction_Must_Set_Non_Zero_Reserve_Price();
    }
    _;
  }
  /**
   * @notice Configures the duration for auctions.
   * @param duration The duration for auctions, in seconds.
   */
  constructor(uint256 duration) {
    if (duration > MAX_MAX_DURATION) {
      // This ensures that math in this file will not overflow due to a huge duration.
      revert NFTMarketReserveAuction_Exceeds_Max_Duration(MAX_MAX_DURATION);
    }
    if (duration < EXTENSION_DURATION) {
      // The auction duration configuration must be greater than the extension window of 15 minutes
      revert NFTMarketReserveAuction_Less_Than_Extension_Duration(EXTENSION_DURATION);
    }
    DURATION = duration;
  }
  /**
   * @notice If an auction has been created but has not yet received bids, it may be canceled by the seller.
   * @dev The NFT is transferred back to the owner unless there is still a buy price set.
   * @param auctionId The id of the auction to cancel.
   */
  function cancelReserveAuction(uint256 auctionId) external nonReentrant {
    ReserveAuctionStorage memory auction = auctionIdToAuction[auctionId];
    if (auction.seller != msg.sender) {
      revert NFTMarketReserveAuction_Only_Owner_Can_Update_Auction(auction.seller);
    }
    if (auction.endTime != 0) {
      revert NFTMarketReserveAuction_Cannot_Update_Auction_In_Progress();
    }
    // Remove the auction.
    delete nftContractToTokenIdToAuctionId[auction.nftContract][auction.tokenId];
    delete auctionIdToAuction[auctionId];
    _removeNftFromExhibition(auction.nftContract, auction.tokenId);
    // Transfer the NFT unless it still has a buy price set.
    _transferFromEscrowIfAvailable(auction.nftContract, auction.tokenId, auction.seller);
    emit ReserveAuctionCanceled(auctionId);
  }
  /**
   * @notice [DEPRECATED] use `createReserveAuctionV2` instead.
   * Creates an auction for the given NFT.
   * The NFT is held in escrow until the auction is finalized or canceled.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param reservePrice The initial reserve price for the auction.
   */
  function createReserveAuction(address nftContract, uint256 tokenId, uint256 reservePrice) external {
    createReserveAuctionV2({ nftContract: nftContract, tokenId: tokenId, reservePrice: reservePrice, exhibitionId: 0 });
  }
  /**
   * @notice Creates an auction for the given NFT.
   * The NFT is held in escrow until the auction is finalized or canceled.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param reservePrice The initial reserve price for the auction.
   * @param exhibitionId The exhibition to list with, or 0 if n/a.
   * @return auctionId The id of the auction that was created.
   */
  function createReserveAuctionV2(address nftContract, uint256 tokenId, uint256 reservePrice, uint256 exhibitionId)
    public
    nonReentrant
    onlyValidAuctionConfig(reservePrice)
    returns (uint256 auctionId)
  {
    auctionId = _getNextAndIncrementAuctionId();
    // If the `msg.sender` is not the owner of the NFT, transferring into escrow should fail.
    _transferToEscrow(nftContract, tokenId);
    // This check must be after _transferToEscrow in case auto-settle was required
    if (nftContractToTokenIdToAuctionId[nftContract][tokenId] != 0) {
      revert NFTMarketReserveAuction_Already_Listed(nftContractToTokenIdToAuctionId[nftContract][tokenId]);
    }
    // Store the auction details
    nftContractToTokenIdToAuctionId[nftContract][tokenId] = auctionId;
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    auction.nftContract = nftContract;
    auction.tokenId = tokenId;
    auction.seller = payable(msg.sender);
    auction.amount = reservePrice;
    _addNftToExhibition(nftContract, tokenId, exhibitionId);
    emit ReserveAuctionCreated({
      seller: msg.sender,
      nftContract: nftContract,
      tokenId: tokenId,
      duration: DURATION,
      extensionDuration: EXTENSION_DURATION,
      reservePrice: reservePrice,
      auctionId: auctionId
    });
  }
  /**
   * @notice Once the countdown has expired for an auction, anyone can settle the auction.
   * This will send the NFT to the highest bidder and distribute revenue for this sale.
   * @param auctionId The id of the auction to settle.
   */
  function finalizeReserveAuction(uint256 auctionId) external nonReentrant {
    if (auctionIdToAuction[auctionId].endTime == 0) {
      revert NFTMarketReserveAuction_Cannot_Finalize_Already_Settled_Auction();
    }
    _finalizeReserveAuction({ auctionId: auctionId, keepInEscrow: false });
  }
  /**
   * @notice [DEPRECATED] use `placeBidV2` instead.
   * Place a bid in an auction.
   * A bidder may place a bid which is at least the value defined by `getMinBidAmount`.
   * If this is the first bid on the auction, the countdown will begin.
   * If there is already an outstanding bid, the previous bidder will be refunded at this time
   * and if the bid is placed in the final moments of the auction, the countdown may be extended.
   * @param auctionId The id of the auction to bid on.
   */
  function placeBid(uint256 auctionId) external payable {
    placeBidV2({ auctionId: auctionId, amount: msg.value, referrer: payable(0) });
  }
  /**
   * @notice Place a bid in an auction.
   * A bidder may place a bid which is at least the amount defined by `getMinBidAmount`.
   * If this is the first bid on the auction, the countdown will begin.
   * If there is already an outstanding bid, the previous bidder will be refunded at this time
   * and if the bid is placed in the final moments of the auction, the countdown may be extended.
   * @dev `amount` - `msg.value` is withdrawn from the bidder's FETH balance.
   * @param auctionId The id of the auction to bid on.
   * @param amount The amount to bid, if this is more than `msg.value` funds will be withdrawn from your FETH balance.
   * @param referrer The address of the referrer of this bid, or 0 if n/a.
   */
  /* solhint-disable-next-line code-complexity */
  function placeBidV2(uint256 auctionId, uint256 amount, address payable referrer) public payable nonReentrant {
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    if (auction.amount == 0) {
      // No auction found
      revert NFTMarketReserveAuction_Cannot_Bid_On_Nonexistent_Auction();
    } else if (amount < msg.value) {
      // The amount is specified by the bidder, so if too much ETH is sent then something went wrong.
      revert NFTMarketReserveAuction_Too_Much_Value_Provided();
    }
    uint256 endTime = auction.endTime;
    // Store the bid referral
    if (referrer != address(0) || endTime != 0) {
      auction.bidReferrerAddressSlot0 = uint96(uint160(address(referrer)) >> 64);
      auction.bidReferrerAddressSlot1 = uint64(uint160(address(referrer)));
    }
    if (endTime == 0) {
      // This is the first bid, kicking off the auction.
      if (amount < auction.amount) {
        // The bid must be >= the reserve price.
        revert NFTMarketReserveAuction_Cannot_Bid_Lower_Than_Reserve_Price(auction.amount);
      }
      // Notify other market tools that an auction for this NFT has been kicked off.
      // The only state change before this call is potentially withdrawing funds from FETH.
      _beforeAuctionStarted(auction.nftContract, auction.tokenId);
      // Store the bid details.
      auction.amount = amount;
      auction.bidder = payable(msg.sender);
      // On the first bid, set the endTime to now + duration.
      unchecked {
        // Duration is always set to 24hrs so the below can't overflow.
        endTime = block.timestamp + DURATION;
      }
      auction.endTime = endTime;
    } else {
      if (endTime.hasExpired()) {
        // The auction has already ended.
        revert NFTMarketReserveAuction_Cannot_Bid_On_Ended_Auction(endTime);
      } else if (auction.bidder == msg.sender) {
        // We currently do not allow a bidder to increase their bid unless another user has outbid them first.
        revert NFTMarketReserveAuction_Cannot_Rebid_Over_Outstanding_Bid();
      } else {
        uint256 minIncrement = _getMinIncrement(auction.amount);
        if (amount < minIncrement) {
          // If this bid outbids another, it must be at least 10% greater than the last bid.
          revert NFTMarketReserveAuction_Bid_Must_Be_At_Least_Min_Amount(minIncrement);
        }
      }
      // Cache and update bidder state
      uint256 originalAmount = auction.amount;
      address payable originalBidder = auction.bidder;
      auction.amount = amount;
      auction.bidder = payable(msg.sender);
      unchecked {
        // When a bid outbids another, check to see if a time extension should apply.
        // We confirmed that the auction has not ended, so endTime is always >= the current timestamp.
        // Current time plus extension duration (always 15 mins) cannot overflow.
        uint256 endTimeWithExtension = block.timestamp + EXTENSION_DURATION;
        if (endTime < endTimeWithExtension) {
          endTime = endTimeWithExtension;
          auction.endTime = endTime;
        }
      }
      // Refund the previous bidder
      _sendValueWithFallbackWithdraw({
        user: originalBidder,
        amount: originalAmount,
        gasLimit: SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT
      });
    }
    _tryUseFETHBalance({ totalAmount: amount, shouldRefundSurplus: false });
    emit ReserveAuctionBidPlaced({ auctionId: auctionId, bidder: msg.sender, amount: amount, endTime: endTime });
  }
  /**
   * @notice If an auction has been created but has not yet received bids, the reservePrice may be
   * changed by the seller.
   * @param auctionId The id of the auction to change.
   * @param reservePrice The new reserve price for this auction.
   */
  function updateReserveAuction(uint256 auctionId, uint256 reservePrice) external onlyValidAuctionConfig(reservePrice) {
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    if (auction.seller != msg.sender) {
      revert NFTMarketReserveAuction_Only_Owner_Can_Update_Auction(auction.seller);
    } else if (auction.endTime != 0) {
      revert NFTMarketReserveAuction_Cannot_Update_Auction_In_Progress();
    } else if (auction.amount == reservePrice) {
      revert NFTMarketReserveAuction_Price_Already_Set();
    }
    // Update the current reserve price.
    auction.amount = reservePrice;
    emit ReserveAuctionUpdated(auctionId, reservePrice);
  }
  /**
   * @notice Settle an auction that has already ended.
   * This will send the NFT to the highest bidder and distribute revenue for this sale.
   * @param keepInEscrow If true, the NFT will be kept in escrow to save gas by avoiding
   * redundant transfers if the NFT should remain in escrow, such as when the new owner
   * sets a buy price or lists it in a new auction.
   */
  function _finalizeReserveAuction(uint256 auctionId, bool keepInEscrow) private {
    ReserveAuctionStorage memory auction = auctionIdToAuction[auctionId];
    if (!auction.endTime.hasExpired()) {
      revert NFTMarketReserveAuction_Cannot_Finalize_Auction_In_Progress(auction.endTime);
    }
    (
      address payable sellerReferrerPaymentAddress,
      uint16 sellerReferrerTakeRateInBasisPoints
    ) = _getExhibitionForPayment(auction.nftContract, auction.tokenId);
    // Remove the auction.
    delete nftContractToTokenIdToAuctionId[auction.nftContract][auction.tokenId];
    delete auctionIdToAuction[auctionId];
    if (!keepInEscrow) {
      // The seller was authorized when the auction was originally created
      super._transferFromEscrow({
        nftContract: auction.nftContract,
        tokenId: auction.tokenId,
        recipient: auction.bidder,
        authorizeSeller: address(0)
      });
    }
    // Distribute revenue for this sale.
    (uint256 totalFees, uint256 creatorRev, uint256 sellerRev) = _distributeFunds(
      auction.nftContract,
      auction.tokenId,
      auction.seller,
      auction.amount,
      payable(address((uint160(auction.bidReferrerAddressSlot0) << 64) | uint160(auction.bidReferrerAddressSlot1))),
      sellerReferrerPaymentAddress,
      sellerReferrerTakeRateInBasisPoints
    );
    emit ReserveAuctionFinalized(auctionId, auction.seller, auction.bidder, totalFees, creatorRev, sellerRev);
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev If an auction is found:
   *  - If the auction is over, it will settle the auction and confirm the new seller won the auction.
   *  - If the auction has not received a bid, it will invalidate the auction.
   *  - If the auction is in progress, this will revert.
   */
  function _transferFromEscrow(address nftContract, uint256 tokenId, address recipient, address authorizeSeller)
    internal
    virtual
    override
  {
    uint256 auctionId = nftContractToTokenIdToAuctionId[nftContract][tokenId];
    if (auctionId != 0) {
      ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
      if (auction.endTime == 0) {
        // The auction has not received any bids yet so it may be invalided.
        if (authorizeSeller != address(0) && auction.seller != authorizeSeller) {
          // The account trying to transfer the NFT is not the current owner.
          revert NFTMarketReserveAuction_Not_Matching_Seller(auction.seller);
        }
        // Remove the auction.
        delete nftContractToTokenIdToAuctionId[nftContract][tokenId];
        delete auctionIdToAuction[auctionId];
        _removeNftFromExhibition(nftContract, tokenId);
        emit ReserveAuctionInvalidated(auctionId);
      } else {
        // If the auction has ended, the highest bidder will be the new owner
        // and if the auction is in progress, this will revert.
        // `authorizeSeller != address(0)` does not apply here since an unsettled auction must go
        // through this path to know who the authorized seller should be.
        if (auction.bidder != authorizeSeller) {
          revert NFTMarketReserveAuction_Not_Matching_Seller(auction.bidder);
        }
        // Finalization will revert if the auction has not yet ended.
        _finalizeReserveAuction({ auctionId: auctionId, keepInEscrow: true });
      }
      // The seller authorization has been confirmed.
      authorizeSeller = address(0);
    }
    super._transferFromEscrow(nftContract, tokenId, recipient, authorizeSeller);
  }
  /**
   * @inheritdoc NFTMarketCore
   * @dev Checks if there is an auction for this NFT before allowing the transfer to continue.
   */
  function _transferFromEscrowIfAvailable(address nftContract, uint256 tokenId, address recipient)
    internal
    virtual
    override
  {
    if (nftContractToTokenIdToAuctionId[nftContract][tokenId] == 0) {
      // No auction was found
      super._transferFromEscrowIfAvailable(nftContract, tokenId, recipient);
    }
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _transferToEscrow(address nftContract, uint256 tokenId) internal virtual override {
    uint256 auctionId = nftContractToTokenIdToAuctionId[nftContract][tokenId];
    if (auctionId == 0) {
      // NFT is not in auction
      super._transferToEscrow(nftContract, tokenId);
      return;
    }
    // Using storage saves gas since most of the data is not needed
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    if (auction.endTime == 0) {
      // Reserve price set, confirm the seller is a match
      if (auction.seller != msg.sender) {
        revert NFTMarketReserveAuction_Not_Matching_Seller(auction.seller);
      }
    } else {
      // Auction in progress, confirm the highest bidder is a match
      if (auction.bidder != msg.sender) {
        revert NFTMarketReserveAuction_Not_Matching_Seller(auction.bidder);
      }
      // Finalize auction but leave NFT in escrow, reverts if the auction has not ended
      _finalizeReserveAuction({ auctionId: auctionId, keepInEscrow: true });
    }
  }
  /**
   * @notice Returns the minimum amount a bidder must spend to participate in an auction.
   * Bids must be greater than or equal to this value or they will revert.
   * @param auctionId The id of the auction to check.
   * @return minimum The minimum amount for a bid to be accepted.
   */
  function getMinBidAmount(uint256 auctionId) external view returns (uint256 minimum) {
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    if (auction.endTime == 0) {
      return auction.amount;
    }
    return _getMinIncrement(auction.amount);
  }
  /**
   * @notice Returns auction details for a given auctionId.
   * @param auctionId The id of the auction to lookup.
   */
  function getReserveAuction(uint256 auctionId) external view returns (ReserveAuction memory auction) {
    ReserveAuctionStorage storage auctionStorage = auctionIdToAuction[auctionId];
    auction = ReserveAuction(
      auctionStorage.nftContract,
      auctionStorage.tokenId,
      auctionStorage.seller,
      DURATION,
      EXTENSION_DURATION,
      auctionStorage.endTime,
      auctionStorage.bidder,
      auctionStorage.amount
    );
  }
  /**
   * @notice Returns the auctionId for a given NFT, or 0 if no auction is found.
   * @dev If an auction is canceled, it will not be returned. However the auction may be over and pending finalization.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return auctionId The id of the auction, or 0 if no auction is found.
   */
  function getReserveAuctionIdFor(address nftContract, uint256 tokenId) external view returns (uint256 auctionId) {
    auctionId = nftContractToTokenIdToAuctionId[nftContract][tokenId];
  }
  /**
   * @notice Returns the referrer for the current highest bid in the auction, or address(0).
   */
  function getReserveAuctionBidReferrer(uint256 auctionId) external view returns (address payable referrer) {
    ReserveAuctionStorage storage auction = auctionIdToAuction[auctionId];
    referrer = payable(
      address((uint160(auction.bidReferrerAddressSlot0) << 64) | uint160(auction.bidReferrerAddressSlot1))
    );
  }
  /**
   * @inheritdoc MarketSharedCore
   * @dev Returns the seller that has the given NFT in escrow for an auction,
   * or bubbles the call up for other considerations.
   */
  function _getSellerOf(address nftContract, uint256 tokenId)
    internal
    view
    virtual
    override(MarketSharedCore, NFTMarketCore)
    returns (address payable seller)
  {
    seller = auctionIdToAuction[nftContractToTokenIdToAuctionId[nftContract][tokenId]].seller;
    if (seller == address(0)) {
      seller = super._getSellerOf(nftContract, tokenId);
    }
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _isInActiveAuction(address nftContract, uint256 tokenId) internal view override returns (bool) {
    uint256 auctionId = nftContractToTokenIdToAuctionId[nftContract][tokenId];
    return auctionId != 0 && !auctionIdToAuction[auctionId].endTime.hasExpired();
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[1_000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
 * @dev 100% in basis points.
 */
uint256 constant BASIS_POINTS = 10_000;
/**
 * @dev The default admin role defined by OZ ACL modules.
 */
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
/**
 * @dev The max take rate an exhibition can have.
 */
uint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;
/**
 * @dev Cap the number of royalty recipients.
 * A cap is required to ensure gas costs are not too high when a sale is settled.
 */
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
 * @dev The minimum increase of 10% required when making an offer or placing a bid.
 */
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
 * @dev The gas limit used when making external read-only calls.
 * This helps to ensure that external calls does not prevent the market from executing.
 */
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
 * @dev Default royalty cut paid out on secondary sales.
 * Set to 10% of the secondary sale.
 */
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
 * @dev 10%, expressed as a denominator for more efficient calculations.
 */
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
 * @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
 */
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
 * @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
 */
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../../interfaces/internal/IFethMarket.sol";
error FETHNode_FETH_Address_Is_Not_A_Contract();
error FETHNode_Only_FETH_Can_Transfer_ETH();
/**
 * @title A mixin for interacting with the FETH contract.
 * @author batu-inal & HardlyDifficult
 */
abstract contract FETHNode {
  using AddressUpgradeable for address;
  using AddressUpgradeable for address payable;
  /// @notice The FETH ERC-20 token for managing escrow and lockup.
  IFethMarket internal immutable feth;
  constructor(address _feth) {
    if (!_feth.isContract()) {
      revert FETHNode_FETH_Address_Is_Not_A_Contract();
    }
    feth = IFethMarket(_feth);
  }
  /**
   * @notice Only used by FETH. Any direct transfer from users will revert.
   */
  receive() external payable {
    if (msg.sender != address(feth)) {
      revert FETHNode_Only_FETH_Can_Transfer_ETH();
    }
  }
  /**
   * @notice Withdraw the msg.sender's available FETH balance if they requested more than the msg.value provided.
   * @dev This may revert if the msg.sender is non-receivable.
   * This helper should not be used anywhere that may lead to locked assets.
   * @param totalAmount The total amount of ETH required (including the msg.value).
   * @param shouldRefundSurplus If true, refund msg.value - totalAmount to the msg.sender.
   */
  function _tryUseFETHBalance(uint256 totalAmount, bool shouldRefundSurplus) internal {
    if (totalAmount > msg.value) {
      // Withdraw additional ETH required from the user's available FETH balance.
      unchecked {
        // The if above ensures delta will not underflow.
        // Withdraw ETH from the user's account in the FETH token contract,
        // making the funds available in this contract as ETH.
        feth.marketWithdrawFrom(msg.sender, totalAmount - msg.value);
      }
    } else if (shouldRefundSurplus && totalAmount < msg.value) {
      // Return any surplus ETH to the user.
      unchecked {
        // The if above ensures this will not underflow
        payable(msg.sender).sendValue(msg.value - totalAmount);
      }
    }
  }
  /**
   * @notice Gets the FETH contract used to escrow offer funds.
   * @return fethAddress The FETH contract address.
   */
  function getFethAddress() external view returns (address fethAddress) {
    fethAddress = address(feth);
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../../interfaces/internal/roles/IAdminRole.sol";
import "../../interfaces/internal/roles/IOperatorRole.sol";
error FoundationTreasuryNode_Address_Is_Not_A_Contract();
error FoundationTreasuryNode_Caller_Not_Admin();
error FoundationTreasuryNode_Caller_Not_Operator();
/**
 * @title A mixin that stores a reference to the Foundation treasury contract.
 * @notice The treasury collects fees and defines admin/operator roles.
 * @author batu-inal & HardlyDifficult
 */
abstract contract FoundationTreasuryNode {
  using AddressUpgradeable for address payable;
  /// @dev This value was replaced with an immutable version.
  address payable private __gap_was_treasury;
  /// @notice The address of the treasury contract.
  address payable private immutable treasury;
  /// @notice Requires the caller is a Foundation admin.
  modifier onlyFoundationAdmin() {
    if (!IAdminRole(treasury).isAdmin(msg.sender)) {
      revert FoundationTreasuryNode_Caller_Not_Admin();
    }
    _;
  }
  /// @notice Requires the caller is a Foundation operator.
  modifier onlyFoundationOperator() {
    if (!IOperatorRole(treasury).isOperator(msg.sender)) {
      revert FoundationTreasuryNode_Caller_Not_Operator();
    }
    _;
  }
  /**
   * @notice Set immutable variables for the implementation contract.
   * @dev Assigns the treasury contract address.
   */
  constructor(address payable _treasury) {
    if (!_treasury.isContract()) {
      revert FoundationTreasuryNode_Address_Is_Not_A_Contract();
    }
    treasury = _treasury;
  }
  /**
   * @notice Gets the Foundation treasury contract.
   * @dev This call is used in the royalty registry contract.
   * @return treasuryAddress The address of the Foundation treasury contract.
   */
  function getFoundationTreasury() public view returns (address payable treasuryAddress) {
    treasuryAddress = treasury;
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[2_000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@manifoldxyz/royalty-registry-solidity/contracts/IRoyaltyRegistry.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IOwnable.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../../libraries/ArrayLibrary.sol";
import "./Constants.sol";
import "./FoundationTreasuryNode.sol";
import "./SendValueWithFallbackWithdraw.sol";
import "./MarketSharedCore.sol";
error NFTMarketFees_Address_Does_Not_Support_IRoyaltyRegistry();
error NFTMarketFees_Invalid_Protocol_Fee();
/**
 * @title A mixin to distribute funds when an NFT is sold.
 * @author batu-inal & HardlyDifficult
 */
abstract contract MarketFees is FoundationTreasuryNode, MarketSharedCore, SendValueWithFallbackWithdraw {
  using AddressUpgradeable for address;
  using ArrayLibrary for address payable[];
  using ArrayLibrary for uint256[];
  using ERC165Checker for address;
  /**
   * @dev Removing old unused variables in an upgrade safe way. Was:
   * uint256 private _primaryFoundationFeeBasisPoints;
   * uint256 private _secondaryFoundationFeeBasisPoints;
   * uint256 private _secondaryCreatorFeeBasisPoints;
   * mapping(address => mapping(uint256 => bool)) private _nftContractToTokenIdToFirstSaleCompleted;
   */
  uint256[4] private __gap_was_fees;
  /// @notice The royalties sent to creator recipients on secondary sales.
  uint256 private constant CREATOR_ROYALTY_DENOMINATOR = BASIS_POINTS / 1_000; // 10%
  /// @notice The fee collected by Foundation for sales facilitated by this market contract.
  uint256 private immutable PROTOCOL_FEE_IN_BASIS_POINTS;
  /// @notice The fee collected by the buy referrer for sales facilitated by this market contract.
  ///         This fee is calculated from the total protocol fee.
  uint256 private constant BUY_REFERRER_FEE_DENOMINATOR = BASIS_POINTS / 100; // 1%
  /// @notice The address of the royalty registry which may be used to define royalty overrides for some collections.
  IRoyaltyRegistry private immutable royaltyRegistry;
  /// @notice The address of this contract's implementation.
  /// @dev This is used when making stateless external calls to this contract,
  /// saving gas over hopping through the proxy which is only necessary when accessing state.
  MarketFees private immutable implementationAddress;
  /// @notice True for the Drop market which only performs primary sales. False if primary & secondary are supported.
  bool private immutable assumePrimarySale;
  /**
   * @notice Emitted when an NFT sold with a referrer.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param buyReferrer The account which received the buy referral incentive.
   * @param buyReferrerFee The portion of the protocol fee collected by the buy referrer.
   * @param buyReferrerSellerFee The portion of the owner revenue collected by the buy referrer (not implemented).
   */
  event BuyReferralPaid(
    address indexed nftContract,
    uint256 indexed tokenId,
    address buyReferrer,
    uint256 buyReferrerFee,
    uint256 buyReferrerSellerFee
  );
  /**
   * @notice Emitted when an NFT is sold when associated with a sell referrer.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param sellerReferrer The account which received the sell referral incentive.
   * @param sellerReferrerFee The portion of the seller revenue collected by the sell referrer.
   */
  event SellerReferralPaid(
    address indexed nftContract,
    uint256 indexed tokenId,
    address sellerReferrer,
    uint256 sellerReferrerFee
  );
  /**
   * @notice Configures the registry allowing for royalty overrides to be defined.
   * @param _royaltyRegistry The registry to use for royalty overrides.
   * @param _assumePrimarySale True for the Drop market which only performs primary sales.
   * False if primary & secondary are supported.
   */
  constructor(uint16 protocolFeeInBasisPoints, address _royaltyRegistry, bool _assumePrimarySale) {
    if (
      protocolFeeInBasisPoints < BASIS_POINTS / BUY_REFERRER_FEE_DENOMINATOR ||
      protocolFeeInBasisPoints + BASIS_POINTS / CREATOR_ROYALTY_DENOMINATOR >= BASIS_POINTS - MAX_EXHIBITION_TAKE_RATE
    ) {
      /* If the protocol fee is invalid, revert:
       * Protocol fee must be greater than the buy referrer fee since referrer fees are deducted from the protocol fee.
       * The protocol fee must leave room for the creator royalties and the max exhibition take rate.
       */
      revert NFTMarketFees_Invalid_Protocol_Fee();
    }
    PROTOCOL_FEE_IN_BASIS_POINTS = protocolFeeInBasisPoints;
    if (!_royaltyRegistry.supportsInterface(type(IRoyaltyRegistry).interfaceId)) {
      revert NFTMarketFees_Address_Does_Not_Support_IRoyaltyRegistry();
    }
    royaltyRegistry = IRoyaltyRegistry(_royaltyRegistry);
    assumePrimarySale = _assumePrimarySale;
    // In the constructor, `this` refers to the implementation address. Everywhere else it'll be the proxy.
    implementationAddress = this;
  }
  /**
   * @notice Distributes funds to foundation, creator recipients, and NFT owner after a sale.
   */
  function _distributeFunds(
    address nftContract,
    uint256 tokenId,
    address payable seller,
    uint256 price,
    address payable buyReferrer,
    address payable sellerReferrerPaymentAddress,
    uint16 sellerReferrerTakeRateInBasisPoints
  ) internal returns (uint256 totalFees, uint256 creatorRev, uint256 sellerRev) {
    if (price == 0) {
      // When the sale price is 0, there are no revenue to distribute.
      return (0, 0, 0);
    }
    address payable[] memory creatorRecipients;
    uint256[] memory creatorShares;
    uint256 buyReferrerFee;
    uint256 sellerReferrerFee;
    (totalFees, creatorRecipients, creatorShares, sellerRev, buyReferrerFee, sellerReferrerFee) = _getFees(
      nftContract,
      tokenId,
      seller,
      price,
      buyReferrer,
      sellerReferrerTakeRateInBasisPoints
    );
    // Pay the creator(s)
    // If just a single recipient was defined, use a larger gas limit in order to support in-contract split logic.
    uint256 creatorGasLimit = creatorRecipients.length == 1
      ? SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS
      : SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT;
    unchecked {
      for (uint256 i = 0; i < creatorRecipients.length; ++i) {
        _sendValueWithFallbackWithdraw(creatorRecipients[i], creatorShares[i], creatorGasLimit);
        // Sum the total creator rev from shares
        // creatorShares is in ETH so creatorRev will not overflow here.
        creatorRev += creatorShares[i];
      }
    }
    // Pay the seller
    _sendValueWithFallbackWithdraw(seller, sellerRev, SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT);
    // Pay the protocol fee
    _sendValueWithFallbackWithdraw(getFoundationTreasury(), totalFees, SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT);
    // Pay the buy referrer fee
    if (buyReferrerFee != 0) {
      _sendValueWithFallbackWithdraw(buyReferrer, buyReferrerFee, SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT);
      emit BuyReferralPaid({
        nftContract: nftContract,
        tokenId: tokenId,
        buyReferrer: buyReferrer,
        buyReferrerFee: buyReferrerFee,
        buyReferrerSellerFee: 0
      });
      unchecked {
        // Add the referrer fee back into the total fees so that all 3 return fields sum to the total price for events
        totalFees += buyReferrerFee;
      }
    }
    if (sellerReferrerPaymentAddress != address(0)) {
      if (sellerReferrerFee != 0) {
        // Add the seller referrer fee back to revenue so that all 3 return fields sum to the total price for events.
        unchecked {
          if (sellerRev == 0) {
            // When sellerRev is 0, this is a primary sale and all revenue is attributed to the "creator".
            creatorRev += sellerReferrerFee;
          } else {
            sellerRev += sellerReferrerFee;
          }
        }
        _sendValueWithFallbackWithdraw(
          sellerReferrerPaymentAddress,
          sellerReferrerFee,
          SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT
        );
      }
      emit SellerReferralPaid(nftContract, tokenId, sellerReferrerPaymentAddress, sellerReferrerFee);
    }
  }
  /**
   * @notice Returns how funds will be distributed for a sale at the given price point.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @param price The sale price to calculate the fees for.
   * @return totalFees How much will be sent to the Foundation treasury and/or referrals.
   * @return creatorRev How much will be sent across all the `creatorRecipients` defined.
   * @return creatorRecipients The addresses of the recipients to receive a portion of the creator fee.
   * @return creatorShares The percentage of the creator fee to be distributed to each `creatorRecipient`.
   * If there is only one `creatorRecipient`, this may be an empty array.
   * Otherwise `creatorShares.length` == `creatorRecipients.length`.
   * @return sellerRev How much will be sent to the owner/seller of the NFT.
   * If the NFT is being sold by the creator, this may be 0 and the full revenue will appear as `creatorRev`.
   * @return seller The address of the owner of the NFT.
   * If `sellerRev` is 0, this may be `address(0)`.
   */
  function getFeesAndRecipients(address nftContract, uint256 tokenId, uint256 price)
    external
    view
    returns (
      uint256 totalFees,
      uint256 creatorRev,
      address payable[] memory creatorRecipients,
      uint256[] memory creatorShares,
      uint256 sellerRev,
      address payable seller
    )
  {
    seller = _getSellerOrOwnerOf(nftContract, tokenId);
    (totalFees, creatorRecipients, creatorShares, sellerRev, , ) = _getFees({
      nftContract: nftContract,
      tokenId: tokenId,
      seller: seller,
      price: price,
      // Notice: Setting this value is a breaking change for the FNDMiddleware contract.
      // Will be wired in an upcoming release to communicate the buy referral information.
      buyReferrer: payable(0),
      sellerReferrerTakeRateInBasisPoints: 0
    });
    // Sum the total creator rev from shares
    unchecked {
      for (uint256 i = 0; i < creatorShares.length; ++i) {
        creatorRev += creatorShares[i];
      }
    }
  }
  /**
   * @notice Returns the address of the registry allowing for royalty configuration overrides.
   * @dev See https://royaltyregistry.xyz/
   * @return registry The address of the royalty registry contract.
   */
  function getRoyaltyRegistry() external view returns (address registry) {
    registry = address(royaltyRegistry);
  }
  /**
   * @notice **For internal use only.**
   * @dev This function is external to allow using try/catch but is not intended for external use.
   * This checks the token creator.
   */
  function internalGetTokenCreator(address nftContract, uint256 tokenId)
    external
    view
    returns (address payable creator)
  {
    creator = ITokenCreator(nftContract).tokenCreator{ gas: READ_ONLY_GAS_LIMIT }(tokenId);
  }
  /**
   * @notice **For internal use only.**
   * @dev This function is external to allow using try/catch but is not intended for external use.
   * If ERC2981 royalties (or getRoyalties) are defined by the NFT contract, allow this standard to define immutable
   * royalties that cannot be later changed via the royalty registry.
   */
  function internalGetImmutableRoyalties(address nftContract, uint256 tokenId)
    external
    view
    returns (address payable[] memory recipients, uint256[] memory splitPerRecipientInBasisPoints)
  {
    // 1st priority: ERC-2981
    if (nftContract.supportsERC165InterfaceUnchecked(type(IRoyaltyInfo).interfaceId)) {
      try IRoyaltyInfo(nftContract).royaltyInfo{ gas: READ_ONLY_GAS_LIMIT }(tokenId, BASIS_POINTS) returns (
        address receiver,
        uint256 royaltyAmount
      ) {
        // Manifold contracts return (address(this), 0) when royalties are not defined
        // - so ignore results when the amount is 0
        if (royaltyAmount > 0) {
          recipients = new address payable[](1);
          recipients[0] = payable(receiver);
          splitPerRecipientInBasisPoints = new uint256[](1);
          // The split amount is assumed to be 100% when only 1 recipient is returned
          return (recipients, splitPerRecipientInBasisPoints);
        }
      } catch // solhint-disable-next-line no-empty-blocks
      {
        // Fall through
      }
    }
    // 2nd priority: getRoyalties
    if (nftContract.supportsERC165InterfaceUnchecked(type(IGetRoyalties).interfaceId)) {
      try IGetRoyalties(nftContract).getRoyalties{ gas: READ_ONLY_GAS_LIMIT }(tokenId) returns (
        address payable[] memory _recipients,
        uint256[] memory recipientBasisPoints
      ) {
        if (_recipients.length != 0 && _recipients.length == recipientBasisPoints.length) {
          return (_recipients, recipientBasisPoints);
        }
      } catch // solhint-disable-next-line no-empty-blocks
      {
        // Fall through
      }
    }
  }
  /**
   * @notice **For internal use only.**
   * @dev This function is external to allow using try/catch but is not intended for external use.
   * This checks for royalties defined in the royalty registry or via a non-standard royalty API.
   */
  // solhint-disable-next-line code-complexity
  function internalGetMutableRoyalties(address nftContract, uint256 tokenId, address payable creator)
    external
    view
    returns (address payable[] memory recipients, uint256[] memory splitPerRecipientInBasisPoints)
  {
    /* Overrides must support ERC-165 when registered, except for overrides defined by the registry owner.
       If that results in an override w/o 165 we may need to upgrade the market to support or ignore that override. */
    // The registry requires overrides are not 0 and contracts when set.
    // If no override is set, the nftContract address is returned.
    try royaltyRegistry.getRoyaltyLookupAddress{ gas: READ_ONLY_GAS_LIMIT }(nftContract) returns (
      address overrideContract
    ) {
      if (overrideContract != nftContract) {
        nftContract = overrideContract;
        // The functions above are repeated here if an override is set.
        // 3rd priority: ERC-2981 override
        if (nftContract.supportsERC165InterfaceUnchecked(type(IRoyaltyInfo).interfaceId)) {
          try IRoyaltyInfo(nftContract).royaltyInfo{ gas: READ_ONLY_GAS_LIMIT }(tokenId, BASIS_POINTS) returns (
            address receiver,
            uint256 royaltyAmount
          ) {
            // Manifold contracts return (address(this), 0) when royalties are not defined
            // - so ignore results when the amount is 0
            if (royaltyAmount != 0) {
              recipients = new address payable[](1);
              recipients[0] = payable(receiver);
              splitPerRecipientInBasisPoints = new uint256[](1);
              // The split amount is assumed to be 100% when only 1 recipient is returned
              return (recipients, splitPerRecipientInBasisPoints);
            }
          } catch // solhint-disable-next-line no-empty-blocks
          {
            // Fall through
          }
        }
        // 4th priority: getRoyalties override
        if (recipients.length == 0 && nftContract.supportsERC165InterfaceUnchecked(type(IGetRoyalties).interfaceId)) {
          try IGetRoyalties(nftContract).getRoyalties{ gas: READ_ONLY_GAS_LIMIT }(tokenId) returns (
            address payable[] memory _recipients,
            uint256[] memory recipientBasisPoints
          ) {
            if (_recipients.length != 0 && _recipients.length == recipientBasisPoints.length) {
              return (_recipients, recipientBasisPoints);
            }
          } catch // solhint-disable-next-line no-empty-blocks
          {
            // Fall through
          }
        }
      }
    } catch // solhint-disable-next-line no-empty-blocks
    {
      // Ignore out of gas errors and continue using the nftContract address
    }
    // 5th priority: getFee* from contract or override
    if (nftContract.supportsERC165InterfaceUnchecked(type(IGetFees).interfaceId)) {
      try IGetFees(nftContract).getFeeRecipients{ gas: READ_ONLY_GAS_LIMIT }(tokenId) returns (
        address payable[] memory _recipients
      ) {
        if (_recipients.length != 0) {
          try IGetFees(nftContract).getFeeBps{ gas: READ_ONLY_GAS_LIMIT }(tokenId) returns (
            uint256[] memory recipientBasisPoints
          ) {
            if (_recipients.length == recipientBasisPoints.length) {
              return (_recipients, recipientBasisPoints);
            }
          } catch // solhint-disable-next-line no-empty-blocks
          {
            // Fall through
          }
        }
      } catch // solhint-disable-next-line no-empty-blocks
      {
        // Fall through
      }
    }
    // 6th priority: tokenCreator w/ or w/o requiring 165 from contract or override
    if (creator != address(0)) {
      // Only pay the tokenCreator if there wasn't another royalty defined
      recipients = new address payable[](1);
      recipients[0] = creator;
      splitPerRecipientInBasisPoints = new uint256[](1);
      // The split amount is assumed to be 100% when only 1 recipient is returned
      return (recipients, splitPerRecipientInBasisPoints);
    }
    // 7th priority: owner from contract or override
    try IOwnable(nftContract).owner{ gas: READ_ONLY_GAS_LIMIT }() returns (address owner) {
      if (owner != address(0)) {
        // Only pay the owner if there wasn't another royalty defined
        recipients = new address payable[](1);
        recipients[0] = payable(owner);
        splitPerRecipientInBasisPoints = new uint256[](1);
        // The split amount is assumed to be 100% when only 1 recipient is returned
        return (recipients, splitPerRecipientInBasisPoints);
      }
    } catch // solhint-disable-next-line no-empty-blocks
    {
      // Fall through
    }
    // If no valid payment address or creator is found, return 0 recipients
  }
  /**
   * @notice Calculates how funds should be distributed for the given sale details.
   * @dev When the NFT is being sold by the `tokenCreator`, all the seller revenue will
   * be split with the royalty recipients defined for that NFT.
   */
  // solhint-disable-next-line code-complexity
  function _getFees(
    address nftContract,
    uint256 tokenId,
    address payable seller,
    uint256 price,
    address payable buyReferrer,
    uint16 sellerReferrerTakeRateInBasisPoints
  )
    private
    view
    returns (
      uint256 totalFees,
      address payable[] memory creatorRecipients,
      uint256[] memory creatorShares,
      uint256 sellerRev,
      uint256 buyReferrerFee,
      uint256 sellerReferrerFee
    )
  {
    // Calculate the protocol fee
    totalFees = (price * PROTOCOL_FEE_IN_BASIS_POINTS) / BASIS_POINTS;
    address payable creator;
    try implementationAddress.internalGetTokenCreator(nftContract, tokenId) returns (address payable _creator) {
      creator = _creator;
    } catch // solhint-disable-next-line no-empty-blocks
    {
      // Fall through
    }
    try implementationAddress.internalGetImmutableRoyalties(nftContract, tokenId) returns (
      address payable[] memory _recipients,
      uint256[] memory _splitPerRecipientInBasisPoints
    ) {
      (creatorRecipients, creatorShares) = (_recipients, _splitPerRecipientInBasisPoints);
    } catch // solhint-disable-next-line no-empty-blocks
    {
      // Fall through
    }
    if (creatorRecipients.length == 0) {
      // Check mutable royalties only if we didn't find results from the immutable API
      try implementationAddress.internalGetMutableRoyalties(nftContract, tokenId, creator) returns (
        address payable[] memory _recipients,
        uint256[] memory _splitPerRecipientInBasisPoints
      ) {
        (creatorRecipients, creatorShares) = (_recipients, _splitPerRecipientInBasisPoints);
      } catch // solhint-disable-next-line no-empty-blocks
      {
        // Fall through
      }
    }
    if (creatorRecipients.length != 0 || assumePrimarySale) {
      uint256 creatorRev;
      if (assumePrimarySale) {
        // All revenue should go to the creator recipients
        unchecked {
          // totalFees is always < price.
          creatorRev = price - totalFees;
        }
        if (creatorRecipients.length == 0) {
          // If no creators were found via the royalty APIs, then set that recipient to the seller's address
          creatorRecipients = new address payable[](1);
          creatorRecipients[0] = seller;
          creatorShares = new uint256[](1);
          // The split amount is assumed to be 100% when only 1 recipient is returned
        }
      } else if (seller == creator || (creatorRecipients.length != 0 && seller == creatorRecipients[0])) {
        // When sold by the creator, all revenue is split if applicable.
        unchecked {
          // totalFees is always < price.
          creatorRev = price - totalFees;
        }
      } else {
        // Rounding favors the owner first, then creator, and foundation last.
        unchecked {
          // Safe math is not required when dividing by a non-zero constant.
          creatorRev = price / CREATOR_ROYALTY_DENOMINATOR;
        }
        sellerRev = price - totalFees - creatorRev;
      }
      // Cap the max number of recipients supported
      creatorRecipients.capLength(MAX_ROYALTY_RECIPIENTS);
      creatorShares.capLength(MAX_ROYALTY_RECIPIENTS);
      // Calculate the seller referrer fee when some revenue is awarded to the creator
      if (sellerReferrerTakeRateInBasisPoints != 0) {
        sellerReferrerFee = (price * sellerReferrerTakeRateInBasisPoints) / BASIS_POINTS;
        // Subtract the seller referrer fee from the seller revenue so we do not double pay.
        if (sellerRev == 0) {
          // If the seller revenue is 0, this is a primary sale where all seller revenue is attributed to the "creator".
          creatorRev -= sellerReferrerFee;
        } else {
          sellerRev -= sellerReferrerFee;
        }
      }
      // Sum the total shares defined
      uint256 totalShares;
      if (creatorRecipients.length > 1) {
        unchecked {
          for (uint256 i = 0; i < creatorRecipients.length; ++i) {
            if (creatorRecipients[i] == seller) {
              // If the seller is any of the recipients defined, assume a primary sale
              creatorRev += sellerRev;
              sellerRev = 0;
            }
            if (totalShares != type(uint256).max) {
              if (creatorShares[i] > BASIS_POINTS) {
                // If the numbers are >100% we ignore the fee recipients and pay just the first instead
                totalShares = type(uint256).max;
                // Continue the loop in order to detect a potential primary sale condition
              } else {
                totalShares += creatorShares[i];
              }
            }
          }
        }
        if (totalShares == 0 || totalShares == type(uint256).max) {
          // If no shares were defined or shares were out of bounds, pay only the first recipient
          creatorRecipients.capLength(1);
          creatorShares.capLength(1);
        }
      }
      // Send payouts to each additional recipient if more than 1 was defined
      uint256 totalRoyaltiesDistributed;
      for (uint256 i = 1; i < creatorRecipients.length; ) {
        uint256 royalty = (creatorRev * creatorShares[i]) / totalShares;
        totalRoyaltiesDistributed += royalty;
        creatorShares[i] = royalty;
        unchecked {
          ++i;
        }
      }
      // Send the remainder to the 1st creator, rounding in their favor
      creatorShares[0] = creatorRev - totalRoyaltiesDistributed;
    } else {
      // No royalty recipients found.
      unchecked {
        // totalFees is always < price.
        sellerRev = price - totalFees;
      }
      // Calculate the seller referrer fee when there is no creator royalty
      if (sellerReferrerTakeRateInBasisPoints != 0) {
        sellerReferrerFee = (price * sellerReferrerTakeRateInBasisPoints) / BASIS_POINTS;
        sellerRev -= sellerReferrerFee;
      }
    }
    if (buyReferrer != address(0) && buyReferrer != msg.sender && buyReferrer != seller && buyReferrer != creator) {
      unchecked {
        buyReferrerFee = price / BUY_REFERRER_FEE_DENOMINATOR;
        // buyReferrerFee is always <= totalFees
        totalFees -= buyReferrerFee;
      }
    }
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[500] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./FETHNode.sol";
/**
 * @title A place for common modifiers and functions used by various market mixins, if any.
 * @dev This also leaves a gap which can be used to add a new mixin to the top of the inheritance tree.
 * @author batu-inal & HardlyDifficult
 */
abstract contract MarketSharedCore is FETHNode {
  /**
   * @notice Checks who the seller for an NFT is if listed in this market.
   * @param nftContract The address of the NFT contract.
   * @param tokenId The id of the NFT.
   * @return seller The seller which listed this NFT for sale, or address(0) if not listed.
   */
  function getSellerOf(address nftContract, uint256 tokenId) external view returns (address payable seller) {
    seller = _getSellerOf(nftContract, tokenId);
  }
  /**
   * @notice Checks who the seller for an NFT is if listed in this market.
   */
  function _getSellerOf(address nftContract, uint256 tokenId) internal view virtual returns (address payable seller);
  /**
   * @notice Checks who the seller for an NFT is if listed in this market or returns the current owner.
   */
  function _getSellerOrOwnerOf(address nftContract, uint256 tokenId)
    internal
    view
    virtual
    returns (address payable sellerOrOwner);
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[500] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./FETHNode.sol";
/**
 * @title A mixin for sending ETH with a fallback withdraw mechanism.
 * @notice Attempt to send ETH and if the transfer fails or runs out of gas, store the balance
 * in the FETH token contract for future withdrawal instead.
 * @dev This mixin was recently switched to escrow funds in FETH.
 * Once we have confirmed all pending balances have been withdrawn, we can remove the escrow tracking here.
 * @author batu-inal & HardlyDifficult
 */
abstract contract SendValueWithFallbackWithdraw is FETHNode {
  using AddressUpgradeable for address payable;
  /// @dev Removing old unused variables in an upgrade safe way.
  uint256 private __gap_was_pendingWithdrawals;
  /**
   * @notice Emitted when escrowed funds are withdrawn to FETH.
   * @param user The account which has withdrawn ETH.
   * @param amount The amount of ETH which has been withdrawn.
   */
  event WithdrawalToFETH(address indexed user, uint256 amount);
  /**
   * @notice Attempt to send a user or contract ETH.
   * If it fails store the amount owned for later withdrawal in FETH.
   * @dev This may fail when sending ETH to a contract that is non-receivable or exceeds the gas limit specified.
   */
  function _sendValueWithFallbackWithdraw(address payable user, uint256 amount, uint256 gasLimit) internal {
    if (amount == 0) {
      return;
    }
    // Cap the gas to prevent consuming all available gas to block a tx from completing successfully
    // solhint-disable-next-line avoid-low-level-calls
    (bool success, ) = user.call{ value: amount, gas: gasLimit }("");
    if (!success) {
      // Store the funds that failed to send for the user in the FETH token
      feth.depositFor{ value: amount }(user);
      emit WithdrawalToFETH(user, amount);
    }
  }
  /**
   * @notice This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[999] private __gap;
}
/*
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// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import "./mixins/shared/Constants.sol";
import "./mixins/shared/FETHNode.sol";
import "./mixins/shared/FoundationTreasuryNode.sol";
import "./mixins/shared/MarketFees.sol";
import "./mixins/shared/MarketSharedCore.sol";
import "./mixins/shared/SendValueWithFallbackWithdraw.sol";
import "./mixins/nftMarket/NFTMarketAuction.sol";
import "./mixins/nftMarket/NFTMarketBuyPrice.sol";
import "./mixins/nftMarket/NFTMarketCore.sol";
import "./mixins/nftMarket/NFTMarketOffer.sol";
import "./mixins/nftMarket/NFTMarketPrivateSaleGap.sol";
import "./mixins/nftMarket/NFTMarketReserveAuction.sol";
import "./mixins/nftMarket/NFTMarketExhibition.sol";
/**
 * @title A market for NFTs on Foundation.
 * @notice The Foundation marketplace is a contract which allows traders to buy and sell NFTs.
 * It supports buying and selling via auctions, private sales, buy price, and offers.
 * @dev All sales in the Foundation market will pay the creator 10% royalties on secondary sales. This is not specific
 * to NFTs minted on Foundation, it should work for any NFT. If royalty information was not defined when the NFT was
 * originally deployed, it may be added using the [Royalty Registry](https://royaltyregistry.xyz/) which will be
 * respected by our market contract.
 * @author batu-inal & HardlyDifficult
 */
contract NFTMarket is
  Initializable,
  FoundationTreasuryNode,
  FETHNode,
  MarketSharedCore,
  NFTMarketCore,
  ReentrancyGuardUpgradeable,
  SendValueWithFallbackWithdraw,
  MarketFees,
  NFTMarketExhibition,
  NFTMarketAuction,
  NFTMarketReserveAuction,
  NFTMarketPrivateSaleGap,
  NFTMarketBuyPrice,
  NFTMarketOffer
{
  /**
   * @notice Set immutable variables for the implementation contract.
   * @dev Using immutable instead of constants allows us to use different values on testnet.
   * @param treasury The Foundation Treasury contract address.
   * @param feth The FETH ERC-20 token contract address.
   * @param royaltyRegistry The Royalty Registry contract address.
   * @param duration The duration of the auction in seconds.
   */
  constructor(address payable treasury, address feth, address royaltyRegistry, uint256 duration)
    FoundationTreasuryNode(treasury)
    FETHNode(feth)
    MarketFees(
      /* protocolFeeInBasisPoints: */
      500,
      royaltyRegistry,
      /* assumePrimarySale: */
      false
    )
    NFTMarketReserveAuction(duration)
    initializer // solhint-disable-next-line no-empty-blocks
  {}
  /**
   * @notice Called once to configure the contract after the initial proxy deployment.
   * @dev This farms the initialize call out to inherited contracts as needed to initialize mutable variables.
   */
  function initialize() external initializer {
    ReentrancyGuardUpgradeable.__ReentrancyGuard_init();
    NFTMarketAuction._initializeNFTMarketAuction();
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _beforeAuctionStarted(address nftContract, uint256 tokenId)
    internal
    override(NFTMarketCore, NFTMarketBuyPrice, NFTMarketOffer)
  {
    // This is a no-op function required to avoid compile errors.
    super._beforeAuctionStarted(nftContract, tokenId);
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _transferFromEscrow(address nftContract, uint256 tokenId, address recipient, address authorizeSeller)
    internal
    override(NFTMarketCore, NFTMarketReserveAuction, NFTMarketBuyPrice)
  {
    // This is a no-op function required to avoid compile errors.
    super._transferFromEscrow(nftContract, tokenId, recipient, authorizeSeller);
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _transferFromEscrowIfAvailable(address nftContract, uint256 tokenId, address recipient)
    internal
    override(NFTMarketCore, NFTMarketReserveAuction, NFTMarketBuyPrice)
  {
    // This is a no-op function required to avoid compile errors.
    super._transferFromEscrowIfAvailable(nftContract, tokenId, recipient);
  }
  /**
   * @inheritdoc NFTMarketCore
   */
  function _transferToEscrow(address nftContract, uint256 tokenId)
    internal
    override(NFTMarketCore, NFTMarketReserveAuction, NFTMarketBuyPrice)
  {
    // This is a no-op function required to avoid compile errors.
    super._transferToEscrow(nftContract, tokenId);
  }
  /**
   * @inheritdoc MarketSharedCore
   */
  function _getSellerOf(address nftContract, uint256 tokenId)
    internal
    view
    override(MarketSharedCore, NFTMarketCore, NFTMarketReserveAuction, NFTMarketBuyPrice)
    returns (address payable seller)
  {
    // This is a no-op function required to avoid compile errors.
    seller = super._getSellerOf(nftContract, tokenId);
  }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/internal/IFethMarket.sol";
abstract contract $IFethMarket is IFethMarket {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/internal/roles/IAdminRole.sol";
abstract contract $IAdminRole is IAdminRole {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/internal/roles/IOperatorRole.sol";
abstract contract $IOperatorRole is IOperatorRole {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/standards/royalties/IGetFees.sol";
abstract contract $IGetFees is IGetFees {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/standards/royalties/IGetRoyalties.sol";
abstract contract $IGetRoyalties is IGetRoyalties {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/standards/royalties/IOwnable.sol";
abstract contract $IOwnable is IOwnable {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/standards/royalties/IRoyaltyInfo.sol";
abstract contract $IRoyaltyInfo is IRoyaltyInfo {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../../contracts/interfaces/standards/royalties/ITokenCreator.sol";
abstract contract $ITokenCreator is ITokenCreator {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/libraries/ArrayLibrary.sol";
contract $ArrayLibrary {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    function $capLength(address payable[] calldata data,uint256 maxLength) external pure {
        return ArrayLibrary.capLength(data,maxLength);
    }
    function $capLength(uint256[] calldata data,uint256 maxLength) external pure {
        return ArrayLibrary.capLength(data,maxLength);
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/libraries/TimeLibrary.sol";
contract $TimeLibrary {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    function $hasExpired(uint256 expiry) external view returns (bool) {
        return TimeLibrary.hasExpired(expiry);
    }
    function $hasBeenReached(uint256 timestamp) external view returns (bool) {
        return TimeLibrary.hasBeenReached(timestamp);
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketAuction.sol";
contract $NFTMarketAuction is NFTMarketAuction {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_getNextAndIncrementAuctionId_Returned(uint256 arg0);
    constructor() {}
    function $_initializeNFTMarketAuction() external {
        return super._initializeNFTMarketAuction();
    }
    function $_getNextAndIncrementAuctionId() external returns (uint256) {
        (uint256 ret0) = super._getNextAndIncrementAuctionId();
        emit $_getNextAndIncrementAuctionId_Returned(ret0);
        return (ret0);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketBuyPrice.sol";
abstract contract $NFTMarketBuyPrice is NFTMarketBuyPrice {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_autoAcceptBuyPrice_Returned(bool arg0);
    event $_distributeFunds_Returned(uint256 arg0, uint256 arg1, uint256 arg2);
    constructor(address payable _treasury, address _feth, uint16 protocolFeeInBasisPoints, address _royaltyRegistry, bool _assumePrimarySale) FoundationTreasuryNode(_treasury) FETHNode(_feth) MarketFees(protocolFeeInBasisPoints, _royaltyRegistry, _assumePrimarySale) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_autoAcceptBuyPrice(address nftContract,uint256 tokenId,uint256 maxPrice) external returns (bool) {
        (bool ret0) = super._autoAcceptBuyPrice(nftContract,tokenId,maxPrice);
        emit $_autoAcceptBuyPrice_Returned(ret0);
        return (ret0);
    }
    function $_beforeAuctionStarted(address nftContract,uint256 tokenId) external {
        return super._beforeAuctionStarted(nftContract,tokenId);
    }
    function $_transferFromEscrow(address nftContract,uint256 tokenId,address recipient,address authorizeSeller) external {
        return super._transferFromEscrow(nftContract,tokenId,recipient,authorizeSeller);
    }
    function $_transferFromEscrowIfAvailable(address nftContract,uint256 tokenId,address recipient) external {
        return super._transferFromEscrowIfAvailable(nftContract,tokenId,recipient);
    }
    function $_transferToEscrow(address nftContract,uint256 tokenId) external {
        return super._transferToEscrow(nftContract,tokenId);
    }
    function $_getSellerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOf(nftContract,tokenId);
    }
    function $_distributeFunds(address nftContract,uint256 tokenId,address payable seller,uint256 price,address payable buyReferrer,address payable sellerReferrerPaymentAddress,uint16 sellerReferrerTakeRateInBasisPoints) external returns (uint256, uint256, uint256) {
        (uint256 ret0, uint256 ret1, uint256 ret2) = super._distributeFunds(nftContract,tokenId,seller,price,buyReferrer,sellerReferrerPaymentAddress,sellerReferrerTakeRateInBasisPoints);
        emit $_distributeFunds_Returned(ret0, ret1, ret2);
        return (ret0, ret1, ret2);
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $__ReentrancyGuard_init() external {
        return super.__ReentrancyGuard_init();
    }
    function $__ReentrancyGuard_init_unchained() external {
        return super.__ReentrancyGuard_init_unchained();
    }
    function $_getMinIncrement(uint256 currentAmount) external pure returns (uint256) {
        return super._getMinIncrement(currentAmount);
    }
    function $_getSellerOrOwnerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOrOwnerOf(nftContract,tokenId);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketCore.sol";
abstract contract $NFTMarketCore is NFTMarketCore {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _feth) FETHNode(_feth) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_beforeAuctionStarted(address arg0,uint256 arg1) external {
        return super._beforeAuctionStarted(arg0,arg1);
    }
    function $_transferFromEscrow(address nftContract,uint256 tokenId,address recipient,address authorizeSeller) external {
        return super._transferFromEscrow(nftContract,tokenId,recipient,authorizeSeller);
    }
    function $_transferFromEscrowIfAvailable(address nftContract,uint256 tokenId,address recipient) external {
        return super._transferFromEscrowIfAvailable(nftContract,tokenId,recipient);
    }
    function $_transferToEscrow(address nftContract,uint256 tokenId) external {
        return super._transferToEscrow(nftContract,tokenId);
    }
    function $_getMinIncrement(uint256 currentAmount) external pure returns (uint256) {
        return super._getMinIncrement(currentAmount);
    }
    function $_getSellerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOf(nftContract,tokenId);
    }
    function $_getSellerOrOwnerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOrOwnerOf(nftContract,tokenId);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketExhibition.sol";
contract $NFTMarketExhibition is NFTMarketExhibition {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_getExhibitionForPayment_Returned(address payable arg0, uint16 arg1);
    constructor() {}
    function $_addNftToExhibition(address nftContract,uint256 tokenId,uint256 exhibitionId) external {
        return super._addNftToExhibition(nftContract,tokenId,exhibitionId);
    }
    function $_getExhibitionForPayment(address nftContract,uint256 tokenId) external returns (address payable, uint16) {
        (address payable ret0, uint16 ret1) = super._getExhibitionForPayment(nftContract,tokenId);
        emit $_getExhibitionForPayment_Returned(ret0, ret1);
        return (ret0, ret1);
    }
    function $_removeNftFromExhibition(address nftContract,uint256 tokenId) external {
        return super._removeNftFromExhibition(nftContract,tokenId);
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketOffer.sol";
abstract contract $NFTMarketOffer is NFTMarketOffer {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_autoAcceptOffer_Returned(bool arg0);
    event $_distributeFunds_Returned(uint256 arg0, uint256 arg1, uint256 arg2);
    constructor(address payable _treasury, address _feth, uint16 protocolFeeInBasisPoints, address _royaltyRegistry, bool _assumePrimarySale) FoundationTreasuryNode(_treasury) FETHNode(_feth) MarketFees(protocolFeeInBasisPoints, _royaltyRegistry, _assumePrimarySale) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_beforeAuctionStarted(address nftContract,uint256 tokenId) external {
        return super._beforeAuctionStarted(nftContract,tokenId);
    }
    function $_autoAcceptOffer(address nftContract,uint256 tokenId,uint256 minAmount) external returns (bool) {
        (bool ret0) = super._autoAcceptOffer(nftContract,tokenId,minAmount);
        emit $_autoAcceptOffer_Returned(ret0);
        return (ret0);
    }
    function $_cancelSendersOffer(address nftContract,uint256 tokenId) external {
        return super._cancelSendersOffer(nftContract,tokenId);
    }
    function $_distributeFunds(address nftContract,uint256 tokenId,address payable seller,uint256 price,address payable buyReferrer,address payable sellerReferrerPaymentAddress,uint16 sellerReferrerTakeRateInBasisPoints) external returns (uint256, uint256, uint256) {
        (uint256 ret0, uint256 ret1, uint256 ret2) = super._distributeFunds(nftContract,tokenId,seller,price,buyReferrer,sellerReferrerPaymentAddress,sellerReferrerTakeRateInBasisPoints);
        emit $_distributeFunds_Returned(ret0, ret1, ret2);
        return (ret0, ret1, ret2);
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $__ReentrancyGuard_init() external {
        return super.__ReentrancyGuard_init();
    }
    function $__ReentrancyGuard_init_unchained() external {
        return super.__ReentrancyGuard_init_unchained();
    }
    function $_transferFromEscrow(address nftContract,uint256 tokenId,address recipient,address authorizeSeller) external {
        return super._transferFromEscrow(nftContract,tokenId,recipient,authorizeSeller);
    }
    function $_transferFromEscrowIfAvailable(address nftContract,uint256 tokenId,address recipient) external {
        return super._transferFromEscrowIfAvailable(nftContract,tokenId,recipient);
    }
    function $_transferToEscrow(address nftContract,uint256 tokenId) external {
        return super._transferToEscrow(nftContract,tokenId);
    }
    function $_getMinIncrement(uint256 currentAmount) external pure returns (uint256) {
        return super._getMinIncrement(currentAmount);
    }
    function $_getSellerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOf(nftContract,tokenId);
    }
    function $_getSellerOrOwnerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOrOwnerOf(nftContract,tokenId);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketPrivateSaleGap.sol";
contract $NFTMarketPrivateSaleGap is NFTMarketPrivateSaleGap {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/nftMarket/NFTMarketReserveAuction.sol";
abstract contract $NFTMarketReserveAuction is NFTMarketReserveAuction {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_getNextAndIncrementAuctionId_Returned(uint256 arg0);
    event $_getExhibitionForPayment_Returned(address payable arg0, uint16 arg1);
    event $_distributeFunds_Returned(uint256 arg0, uint256 arg1, uint256 arg2);
    constructor(address payable _treasury, address _feth, uint16 protocolFeeInBasisPoints, address _royaltyRegistry, bool _assumePrimarySale, uint256 duration) FoundationTreasuryNode(_treasury) FETHNode(_feth) MarketFees(protocolFeeInBasisPoints, _royaltyRegistry, _assumePrimarySale) NFTMarketReserveAuction(duration) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_transferFromEscrow(address nftContract,uint256 tokenId,address recipient,address authorizeSeller) external {
        return super._transferFromEscrow(nftContract,tokenId,recipient,authorizeSeller);
    }
    function $_transferFromEscrowIfAvailable(address nftContract,uint256 tokenId,address recipient) external {
        return super._transferFromEscrowIfAvailable(nftContract,tokenId,recipient);
    }
    function $_transferToEscrow(address nftContract,uint256 tokenId) external {
        return super._transferToEscrow(nftContract,tokenId);
    }
    function $_getSellerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOf(nftContract,tokenId);
    }
    function $_isInActiveAuction(address nftContract,uint256 tokenId) external view returns (bool) {
        return super._isInActiveAuction(nftContract,tokenId);
    }
    function $_initializeNFTMarketAuction() external {
        return super._initializeNFTMarketAuction();
    }
    function $_getNextAndIncrementAuctionId() external returns (uint256) {
        (uint256 ret0) = super._getNextAndIncrementAuctionId();
        emit $_getNextAndIncrementAuctionId_Returned(ret0);
        return (ret0);
    }
    function $_addNftToExhibition(address nftContract,uint256 tokenId,uint256 exhibitionId) external {
        return super._addNftToExhibition(nftContract,tokenId,exhibitionId);
    }
    function $_getExhibitionForPayment(address nftContract,uint256 tokenId) external returns (address payable, uint16) {
        (address payable ret0, uint16 ret1) = super._getExhibitionForPayment(nftContract,tokenId);
        emit $_getExhibitionForPayment_Returned(ret0, ret1);
        return (ret0, ret1);
    }
    function $_removeNftFromExhibition(address nftContract,uint256 tokenId) external {
        return super._removeNftFromExhibition(nftContract,tokenId);
    }
    function $_distributeFunds(address nftContract,uint256 tokenId,address payable seller,uint256 price,address payable buyReferrer,address payable sellerReferrerPaymentAddress,uint16 sellerReferrerTakeRateInBasisPoints) external returns (uint256, uint256, uint256) {
        (uint256 ret0, uint256 ret1, uint256 ret2) = super._distributeFunds(nftContract,tokenId,seller,price,buyReferrer,sellerReferrerPaymentAddress,sellerReferrerTakeRateInBasisPoints);
        emit $_distributeFunds_Returned(ret0, ret1, ret2);
        return (ret0, ret1, ret2);
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $__ReentrancyGuard_init() external {
        return super.__ReentrancyGuard_init();
    }
    function $__ReentrancyGuard_init_unchained() external {
        return super.__ReentrancyGuard_init_unchained();
    }
    function $_beforeAuctionStarted(address arg0,uint256 arg1) external {
        return super._beforeAuctionStarted(arg0,arg1);
    }
    function $_getMinIncrement(uint256 currentAmount) external pure returns (uint256) {
        return super._getMinIncrement(currentAmount);
    }
    function $_getSellerOrOwnerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOrOwnerOf(nftContract,tokenId);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/Constants.sol";
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/FETHNode.sol";
contract $FETHNode is FETHNode {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _feth) FETHNode(_feth) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/FoundationTreasuryNode.sol";
contract $FoundationTreasuryNode is FoundationTreasuryNode {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address payable _treasury) FoundationTreasuryNode(_treasury) {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/MarketFees.sol";
abstract contract $MarketFees is MarketFees {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_distributeFunds_Returned(uint256 arg0, uint256 arg1, uint256 arg2);
    constructor(address payable _treasury, address _feth, uint16 protocolFeeInBasisPoints, address _royaltyRegistry, bool _assumePrimarySale) FoundationTreasuryNode(_treasury) FETHNode(_feth) MarketFees(protocolFeeInBasisPoints, _royaltyRegistry, _assumePrimarySale) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_distributeFunds(address nftContract,uint256 tokenId,address payable seller,uint256 price,address payable buyReferrer,address payable sellerReferrerPaymentAddress,uint16 sellerReferrerTakeRateInBasisPoints) external returns (uint256, uint256, uint256) {
        (uint256 ret0, uint256 ret1, uint256 ret2) = super._distributeFunds(nftContract,tokenId,seller,price,buyReferrer,sellerReferrerPaymentAddress,sellerReferrerTakeRateInBasisPoints);
        emit $_distributeFunds_Returned(ret0, ret1, ret2);
        return (ret0, ret1, ret2);
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/MarketSharedCore.sol";
abstract contract $MarketSharedCore is MarketSharedCore {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _feth) FETHNode(_feth) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/mixins/shared/SendValueWithFallbackWithdraw.sol";
contract $SendValueWithFallbackWithdraw is SendValueWithFallbackWithdraw {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _feth) FETHNode(_feth) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../contracts/NFTMarket.sol";
contract $NFTMarket is NFTMarket {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $_autoAcceptOffer_Returned(bool arg0);
    event $_autoAcceptBuyPrice_Returned(bool arg0);
    event $_getNextAndIncrementAuctionId_Returned(uint256 arg0);
    event $_getExhibitionForPayment_Returned(address payable arg0, uint16 arg1);
    event $_distributeFunds_Returned(uint256 arg0, uint256 arg1, uint256 arg2);
    constructor(address payable treasury, address feth, address royaltyRegistry, uint256 duration) NFTMarket(treasury, feth, royaltyRegistry, duration) {}
    function $feth() external view returns (IFethMarket) {
        return feth;
    }
    function $_beforeAuctionStarted(address nftContract,uint256 tokenId) external {
        return super._beforeAuctionStarted(nftContract,tokenId);
    }
    function $_transferFromEscrow(address nftContract,uint256 tokenId,address recipient,address authorizeSeller) external {
        return super._transferFromEscrow(nftContract,tokenId,recipient,authorizeSeller);
    }
    function $_transferFromEscrowIfAvailable(address nftContract,uint256 tokenId,address recipient) external {
        return super._transferFromEscrowIfAvailable(nftContract,tokenId,recipient);
    }
    function $_transferToEscrow(address nftContract,uint256 tokenId) external {
        return super._transferToEscrow(nftContract,tokenId);
    }
    function $_getSellerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOf(nftContract,tokenId);
    }
    function $_autoAcceptOffer(address nftContract,uint256 tokenId,uint256 minAmount) external returns (bool) {
        (bool ret0) = super._autoAcceptOffer(nftContract,tokenId,minAmount);
        emit $_autoAcceptOffer_Returned(ret0);
        return (ret0);
    }
    function $_cancelSendersOffer(address nftContract,uint256 tokenId) external {
        return super._cancelSendersOffer(nftContract,tokenId);
    }
    function $_autoAcceptBuyPrice(address nftContract,uint256 tokenId,uint256 maxPrice) external returns (bool) {
        (bool ret0) = super._autoAcceptBuyPrice(nftContract,tokenId,maxPrice);
        emit $_autoAcceptBuyPrice_Returned(ret0);
        return (ret0);
    }
    function $_isInActiveAuction(address nftContract,uint256 tokenId) external view returns (bool) {
        return super._isInActiveAuction(nftContract,tokenId);
    }
    function $_initializeNFTMarketAuction() external {
        return super._initializeNFTMarketAuction();
    }
    function $_getNextAndIncrementAuctionId() external returns (uint256) {
        (uint256 ret0) = super._getNextAndIncrementAuctionId();
        emit $_getNextAndIncrementAuctionId_Returned(ret0);
        return (ret0);
    }
    function $_addNftToExhibition(address nftContract,uint256 tokenId,uint256 exhibitionId) external {
        return super._addNftToExhibition(nftContract,tokenId,exhibitionId);
    }
    function $_getExhibitionForPayment(address nftContract,uint256 tokenId) external returns (address payable, uint16) {
        (address payable ret0, uint16 ret1) = super._getExhibitionForPayment(nftContract,tokenId);
        emit $_getExhibitionForPayment_Returned(ret0, ret1);
        return (ret0, ret1);
    }
    function $_removeNftFromExhibition(address nftContract,uint256 tokenId) external {
        return super._removeNftFromExhibition(nftContract,tokenId);
    }
    function $_distributeFunds(address nftContract,uint256 tokenId,address payable seller,uint256 price,address payable buyReferrer,address payable sellerReferrerPaymentAddress,uint16 sellerReferrerTakeRateInBasisPoints) external returns (uint256, uint256, uint256) {
        (uint256 ret0, uint256 ret1, uint256 ret2) = super._distributeFunds(nftContract,tokenId,seller,price,buyReferrer,sellerReferrerPaymentAddress,sellerReferrerTakeRateInBasisPoints);
        emit $_distributeFunds_Returned(ret0, ret1, ret2);
        return (ret0, ret1, ret2);
    }
    function $_sendValueWithFallbackWithdraw(address payable user,uint256 amount,uint256 gasLimit) external {
        return super._sendValueWithFallbackWithdraw(user,amount,gasLimit);
    }
    function $__ReentrancyGuard_init() external {
        return super.__ReentrancyGuard_init();
    }
    function $__ReentrancyGuard_init_unchained() external {
        return super.__ReentrancyGuard_init_unchained();
    }
    function $_getMinIncrement(uint256 currentAmount) external pure returns (uint256) {
        return super._getMinIncrement(currentAmount);
    }
    function $_getSellerOrOwnerOf(address nftContract,uint256 tokenId) external view returns (address payable) {
        return super._getSellerOrOwnerOf(nftContract,tokenId);
    }
    function $_tryUseFETHBalance(uint256 totalAmount,bool shouldRefundSurplus) external {
        return super._tryUseFETHBalance(totalAmount,shouldRefundSurplus);
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    function $_getInitializedVersion() external view returns (uint8) {
        return super._getInitializedVersion();
    }
    function $_isInitializing() external view returns (bool) {
        return super._isInitializing();
    }
}

// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./interfaces/internal/INFTCollectionInitializer.sol";
import "./interfaces/standards/royalties/IGetRoyalties.sol";
import "./interfaces/standards/royalties/ITokenCreator.sol";
import "./interfaces/standards/royalties/IGetFees.sol";
import "./interfaces/standards/royalties/IRoyaltyInfo.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./libraries/AddressLibrary.sol";
import "./mixins/collections/SequentialMintCollection.sol";
import "./mixins/collections/CollectionRoyalties.sol";
import "./mixins/shared/ContractFactory.sol";
/**
 * @title A collection of NFTs by a single creator.
 * @notice All NFTs from this contract are minted by the same creator.
 * A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
 * @author batu-inal & HardlyDifficult
 */
contract NFTCollection is
  INFTCollectionInitializer,
  IGetRoyalties,
  IGetFees,
  IRoyaltyInfo,
  ITokenCreator,
  ContractFactory,
  Initializable,
  ERC165Upgradeable,
  ERC721Upgradeable,
  ERC721BurnableUpgradeable,
  SequentialMintCollection,
  CollectionRoyalties
{
  using AddressLibrary for address;
  using AddressUpgradeable for address;
  /**
   * @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
   */
  string private baseURI_;
  /**
   * @notice Stores hashes minted to prevent duplicates.
   * @dev 0 means not yet minted, set to 1 when minted.
   * For why using uint is better than using bool here:
   * github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
   */
  mapping(string => uint256) private cidToMinted;
  /**
   * @dev Stores an optional alternate address to receive creator revenue and royalty payments.
   * The target address may be a contract which could split or escrow payments.
   */
  mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
  /**
   * @dev Stores a CID for each NFT.
   */
  mapping(uint256 => string) private _tokenCIDs;
  /**
   * @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
   * @param baseURI The new base URI to use.
   */
  event BaseURIUpdated(string baseURI);
  /**
   * @notice Emitted when a new NFT is minted.
   * @param creator The address of the collection owner at this time this NFT was minted.
   * @param tokenId The tokenId of the newly minted NFT.
   * @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
   * @param tokenCID The actual CID of the newly minted NFT.
   */
  event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
  /**
   * @notice Emitted when the payment address for creator royalties is set.
   * @param fromPaymentAddress The original address used for royalty payments.
   * @param toPaymentAddress The new address used for royalty payments.
   * @param tokenId The NFT which had the royalty payment address updated.
   */
  event TokenCreatorPaymentAddressSet(
    address indexed fromPaymentAddress,
    address indexed toPaymentAddress,
    uint256 indexed tokenId
  );
  /**
   * @notice Initialize the template's immutable variables.
   * @param _contractFactory The factory which will be used to create collection contracts.
   */
  constructor(address _contractFactory)
    ContractFactory(_contractFactory) // solhint-disable-next-line no-empty-blocks
  {}
  /**
   * @notice Called by the contract factory on creation.
   * @param _creator The creator of this collection.
   * @param _name The collection's `name`.
   * @param _symbol The collection's `symbol`.
   */
  function initialize(
    address payable _creator,
    string calldata _name,
    string calldata _symbol
  ) external initializer onlyContractFactory {
    __ERC721_init(_name, _symbol);
    _initializeSequentialMintCollection(_creator, 0);
  }
  /**
   * @notice Allows the creator to burn a specific token if they currently own the NFT.
   * @param tokenId The ID of the NFT to burn.
   * @dev The function here asserts `onlyOwner` while the super confirms ownership.
   */
  function burn(uint256 tokenId) public override onlyOwner {
    super.burn(tokenId);
  }
  /**
   * @notice Mint an NFT defined by its metadata path.
   * @dev This is only callable by the collection creator/owner.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mint(string calldata tokenCID) external returns (uint256 tokenId) {
    tokenId = _mint(tokenCID);
  }
  /**
   * @notice Mint an NFT defined by its metadata path and approves the provided operator address.
   * @dev This is only callable by the collection creator/owner.
   * It can be used the first time they mint to save having to issue a separate approval
   * transaction before listing the NFT for sale.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @param operator The address to set as an approved operator for the creator's account.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
    tokenId = _mint(tokenCID);
    setApprovalForAll(operator, true);
  }
  /**
   * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
   * @dev This is only callable by the collection creator/owner.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mintWithCreatorPaymentAddress(string calldata tokenCID, address payable tokenCreatorPaymentAddress)
    public
    returns (uint256 tokenId)
  {
    require(tokenCreatorPaymentAddress != address(0), "NFTCollection: tokenCreatorPaymentAddress is required");
    tokenId = _mint(tokenCID);
    tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
    emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
  }
  /**
   * @notice Mint an NFT defined by its metadata path and approves the provided operator address.
   * @dev This is only callable by the collection creator/owner.
   * It can be used the first time they mint to save having to issue a separate approval
   * transaction before listing the NFT for sale.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
   * @param operator The address to set as an approved operator for the creator's account.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mintWithCreatorPaymentAddressAndApprove(
    string calldata tokenCID,
    address payable tokenCreatorPaymentAddress,
    address operator
  ) external returns (uint256 tokenId) {
    tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
    setApprovalForAll(operator, true);
  }
  /**
   * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
   * which is defined by a contract call, typically a proxy contract address representing the payment terms.
   * @dev This is only callable by the collection creator/owner.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @param paymentAddressFactory The contract to call which will return the address to use for payments.
   * @param paymentAddressCall The call details to send to the factory provided.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mintWithCreatorPaymentFactory(
    string calldata tokenCID,
    address paymentAddressFactory,
    bytes calldata paymentAddressCall
  ) public returns (uint256 tokenId) {
    address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
    tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
  }
  /**
   * @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
   * which is defined by a contract call, typically a proxy contract address representing the payment terms.
   * @dev This is only callable by the collection creator/owner.
   * It can be used the first time they mint to save having to issue a separate approval
   * transaction before listing the NFT for sale.
   * @param tokenCID The CID for the metadata json of the NFT to mint.
   * @param paymentAddressFactory The contract to call which will return the address to use for payments.
   * @param paymentAddressCall The call details to send to the factory provided.
   * @param operator The address to set as an approved operator for the creator's account.
   * @return tokenId The tokenId of the newly minted NFT.
   */
  function mintWithCreatorPaymentFactoryAndApprove(
    string calldata tokenCID,
    address paymentAddressFactory,
    bytes calldata paymentAddressCall,
    address operator
  ) external returns (uint256 tokenId) {
    tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
    setApprovalForAll(operator, true);
  }
  /**
   * @notice Allows the collection creator to destroy this contract only if
   * no NFTs have been minted yet or the minted NFTs have been burned.
   * @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
   */
  function selfDestruct() external onlyOwner {
    _selfDestruct();
  }
  /**
   * @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
   * @param baseURIOverride The new base URI to use for all NFTs in this collection.
   */
  function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
    baseURI_ = baseURIOverride;
    emit BaseURIUpdated(baseURIOverride);
  }
  /**
   * @notice Allows the owner to set a max tokenID.
   * This provides a guarantee to collectors about the limit of this collection contract, if applicable.
   * @dev Once this value has been set, it may be decreased but can never be increased.
   * This max may be more than the final `totalSupply` if 1 or more tokens were burned.
   * @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
   */
  function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
    _updateMaxTokenId(_maxTokenId);
  }
  function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) {
    delete cidToMinted[_tokenCIDs[tokenId]];
    delete tokenIdToCreatorPaymentAddress[tokenId];
    delete _tokenCIDs[tokenId];
    super._burn(tokenId);
  }
  function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
    require(bytes(tokenCID).length != 0, "NFTCollection: tokenCID is required");
    require(cidToMinted[tokenCID] == 0, "NFTCollection: NFT was already minted");
    // Number of tokens cannot realistically overflow 32 bits.
    tokenId = ++latestTokenId;
    require(maxTokenId == 0 || tokenId <= maxTokenId, "NFTCollection: Max token count has already been minted");
    cidToMinted[tokenCID] = 1;
    _tokenCIDs[tokenId] = tokenCID;
    _safeMint(msg.sender, tokenId);
    emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
  }
  /**
   * @notice The base URI used for all NFTs in this collection.
   * @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
   *      e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
   * @return uri The base URI used by this collection.
   */
  function baseURI() external view returns (string memory uri) {
    uri = _baseURI();
  }
  /**
   * @notice Checks if the creator has already minted a given NFT using this collection contract.
   * @param tokenCID The CID to check for.
   * @return hasBeenMinted True if the creator has already minted an NFT with this CID.
   */
  function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
    hasBeenMinted = cidToMinted[tokenCID] != 0;
  }
  /**
   * @inheritdoc CollectionRoyalties
   */
  function getTokenCreatorPaymentAddress(uint256 tokenId)
    public
    view
    override
    returns (address payable creatorPaymentAddress)
  {
    creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
    if (creatorPaymentAddress == address(0)) {
      creatorPaymentAddress = owner;
    }
  }
  /**
   * @inheritdoc IERC165Upgradeable
   */
  function supportsInterface(bytes4 interfaceId)
    public
    view
    override(ERC165Upgradeable, ERC721Upgradeable, CollectionRoyalties)
    returns (bool interfaceSupported)
  {
    // This is a no-op function required to avoid compile errors.
    interfaceSupported = super.supportsInterface(interfaceId);
  }
  /**
   * @inheritdoc IERC721MetadataUpgradeable
   */
  function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
    require(_exists(tokenId), "NFTCollection: URI query for nonexistent token");
    uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
  }
  function _baseURI() internal view override returns (string memory uri) {
    uri = baseURI_;
    if (bytes(uri).length == 0) {
      uri = "ipfs://";
    }
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
  address target;
  bytes callData;
}
/**
 * @title A library for address helpers not already covered by the OZ library.
 * @author batu-inal & HardlyDifficult
 */
library AddressLibrary {
  using AddressUpgradeable for address;
  using AddressUpgradeable for address payable;
  /**
   * @notice Calls an external contract with arbitrary data and parse the return value into an address.
   * @param externalContract The address of the contract to call.
   * @param callData The data to send to the contract.
   * @return contractAddress The address of the contract returned by the call.
   */
  function callAndReturnContractAddress(address externalContract, bytes calldata callData)
    internal
    returns (address payable contractAddress)
  {
    bytes memory returnData = externalContract.functionCall(callData);
    contractAddress = abi.decode(returnData, (address));
    require(contractAddress.isContract(), "InternalProxyCall: did not return a contract");
  }
  function callAndReturnContractAddress(CallWithoutValue calldata call)
    internal
    returns (address payable contractAddress)
  {
    contractAddress = callAndReturnContractAddress(call.target, call.callData);
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @author batu-inal & HardlyDifficult
 */
interface INFTCollectionInitializer {
  function initialize(
    address payable _creator,
    string memory _name,
    string memory _symbol
  ) external;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
/**
 * @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
 * @author batu-inal & HardlyDifficult
 */
abstract contract SequentialMintCollection is ITokenCreator, Initializable, ERC721BurnableUpgradeable {
  /****** Slot 0 (after inheritance) ******/
  /**
   * @notice The creator/owner of this NFT collection.
   * @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
   * @return The collection's creator/owner address.
   */
  address payable public owner;
  /**
   * @notice The tokenId of the most recently created NFT.
   * @dev Minting starts at tokenId 1. Each mint will use this value + 1.
   * @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
   */
  uint32 public latestTokenId;
  /**
   * @notice The max tokenId which can be minted.
   * @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
   * @return The max tokenId which can be minted.
   */
  uint32 public maxTokenId;
  /**
   * @notice Tracks how many tokens have been burned.
   * @dev This number is used to calculate the total supply efficiently.
   */
  uint32 private burnCounter;
  /****** End of storage ******/
  /**
   * @notice Emitted when the max tokenId supported by this collection is updated.
   * @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
   * or equal to this value.
   */
  event MaxTokenIdUpdated(uint256 indexed maxTokenId);
  /**
   * @notice Emitted when this collection is self destructed by the creator/owner/admin.
   * @param admin The account which requested this contract be self destructed.
   */
  event SelfDestruct(address indexed admin);
  modifier onlyOwner() {
    require(msg.sender == owner, "SequentialMintCollection: Caller is not owner");
    _;
  }
  function _initializeSequentialMintCollection(address payable _creator, uint32 _maxTokenId) internal onlyInitializing {
    owner = _creator;
    maxTokenId = _maxTokenId;
  }
  /**
   * @notice Allows the collection owner to destroy this contract only if
   * no NFTs have been minted yet or the minted NFTs have been burned.
   */
  function _selfDestruct() internal {
    require(totalSupply() == 0, "SequentialMintCollection: Any NFTs minted must be burned first");
    emit SelfDestruct(msg.sender);
    selfdestruct(payable(msg.sender));
  }
  /**
   * @notice Allows the owner to set a max tokenID.
   * This provides a guarantee to collectors about the limit of this collection contract, if applicable.
   * @dev Once this value has been set, it may be decreased but can never be increased.
   * @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
   */
  function _updateMaxTokenId(uint32 _maxTokenId) internal {
    require(_maxTokenId != 0, "SequentialMintCollection: Max token ID may not be cleared");
    require(maxTokenId == 0 || _maxTokenId < maxTokenId, "SequentialMintCollection: Max token ID may not increase");
    require(latestTokenId <= _maxTokenId, "SequentialMintCollection: Max token ID must be >= last mint");
    maxTokenId = _maxTokenId;
    emit MaxTokenIdUpdated(_maxTokenId);
  }
  function _burn(uint256 tokenId) internal virtual override {
    unchecked {
      // Number of burned tokens cannot exceed latestTokenId which is the same size.
      ++burnCounter;
    }
    super._burn(tokenId);
  }
  /**
   * @inheritdoc ITokenCreator
   * @dev The tokenId param is ignored since all NFTs return the same value.
   */
  function tokenCreator(
    uint256 /* tokenId */
  ) external view returns (address payable creator) {
    creator = owner;
  }
  /**
   * @notice Returns the total amount of tokens stored by the contract.
   * @dev From the ERC-721 enumerable standard.
   * @return supply The total number of NFTs tracked by this contract.
   */
  function totalSupply() public view returns (uint256 supply) {
    unchecked {
      // Number of tokens minted is always >= burned tokens.
      supply = latestTokenId - burnCounter;
    }
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
 * @title Defines various royalty APIs for broad marketplace support.
 * @author batu-inal & HardlyDifficult
 */
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
  /**
   * @inheritdoc IGetFees
   */
  function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
    recipients = new address payable[](1);
    recipients[0] = getTokenCreatorPaymentAddress(tokenId);
  }
  /**
   * @inheritdoc IGetFees
   * @dev The tokenId param is ignored since all NFTs return the same value.
   */
  function getFeeBps(
    uint256 /* tokenId */
  ) external pure returns (uint256[] memory royaltiesInBasisPoints) {
    royaltiesInBasisPoints = new uint256[](1);
    royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
  }
  /**
   * @inheritdoc IGetRoyalties
   */
  function getRoyalties(uint256 tokenId)
    external
    view
    returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints)
  {
    recipients = new address payable[](1);
    recipients[0] = getTokenCreatorPaymentAddress(tokenId);
    royaltiesInBasisPoints = new uint256[](1);
    royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
  }
  /**
   * @notice The address to pay the creator proceeds/royalties for the collection.
   * @param tokenId The ID of the NFT to get the creator payment address for.
   * @return creatorPaymentAddress The address to which royalties should be paid.
   */
  function getTokenCreatorPaymentAddress(uint256 tokenId)
    public
    view
    virtual
    returns (address payable creatorPaymentAddress);
  /**
   * @inheritdoc IRoyaltyInfo
   */
  function royaltyInfo(uint256 tokenId, uint256 salePrice)
    external
    view
    returns (address receiver, uint256 royaltyAmount)
  {
    receiver = getTokenCreatorPaymentAddress(tokenId);
    unchecked {
      royaltyAmount = salePrice / ROYALTY_RATIO;
    }
  }
  /**
   * @inheritdoc IERC165Upgradeable
   * @dev Checks the supported royalty interfaces.
   */
  function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
    interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
      interfaceId == type(ITokenCreator).interfaceId ||
      interfaceId == type(IGetRoyalties).interfaceId ||
      interfaceId == type(IGetFees).interfaceId ||
      super.supportsInterface(interfaceId));
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
/**
 * @title Stores a reference to the factory which is used to create contract proxies.
 * @author batu-inal & HardlyDifficult
 */
abstract contract ContractFactory {
  using AddressUpgradeable for address;
  /**
   * @notice The address of the factory which was used to create this contract.
   * @return The factory contract address.
   */
  address public immutable contractFactory;
  modifier onlyContractFactory() {
    require(msg.sender == contractFactory, "ContractFactory: Caller is not the factory");
    _;
  }
  /**
   * @notice Initialize the template's immutable variables.
   * @param _contractFactory The factory which will be used to create these contracts.
   */
  constructor(address _contractFactory) {
    require(_contractFactory.isContract(), "ContractFactory: Factory is not a contract");
    contractFactory = _contractFactory;
  }
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
  /**
   * @notice Get the creator royalties to be sent.
   * @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return recipients An array of addresses to which royalties should be sent.
   * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
   */
  function getRoyalties(uint256 tokenId)
    external
    view
    returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
  /**
   * @notice Returns the creator of this NFT collection.
   * @param tokenId The ID of the NFT to get the creator payment address for.
   * @return creator The creator of this collection.
   */
  function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice An interface for communicating fees to 3rd party marketplaces.
 * @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
 */
interface IGetFees {
  /**
   * @notice Get the recipient addresses to which creator royalties should be sent.
   * @dev The expected royalty amounts are communicated with `getFeeBps`.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return recipients An array of addresses to which royalties should be sent.
   */
  function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
  /**
   * @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
   * @dev The expected recipients are communicated with `getFeeRecipients`.
   * @param tokenId The ID of the NFT to get royalties for.
   * @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
   */
  function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
 * @notice Interface for EIP-2981: NFT Royalty Standard.
 * For more see: https://eips.ethereum.org/EIPS/eip-2981.
 */
interface IRoyaltyInfo {
  /**
   * @notice Get the creator royalties to be sent.
   * @param tokenId The ID of the NFT to get royalties for.
   * @param salePrice The total price of the sale.
   * @return receiver The address to which royalties should be sent.
   * @return royaltyAmount The total amount that should be sent to the `receiver`.
   */
  function royaltyInfo(uint256 tokenId, uint256 salePrice)
    external
    view
    returns (address receiver, uint256 royaltyAmount);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;
    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;
    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);
    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }
    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }
    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }
    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal onlyInitializing {
    }
    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
    using AddressUpgradeable for address;
    using StringsUpgradeable for uint256;
    // Token name
    string private _name;
    // Token symbol
    string private _symbol;
    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;
    // Mapping owner address to token count
    mapping(address => uint256) private _balances;
    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;
    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;
    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC721_init_unchained(name_, symbol_);
    }
    function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _name = name_;
        _symbol = symbol_;
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC721Upgradeable).interfaceId ||
            interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }
    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }
    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: invalid token ID");
        return owner;
    }
    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }
    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }
    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        _requireMinted(tokenId);
        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }
    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }
    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");
        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not token owner nor approved for all"
        );
        _approve(to, tokenId);
    }
    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);
        return _tokenApprovals[tokenId];
    }
    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }
    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }
    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
        _transfer(from, to, tokenId);
    }
    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }
    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
        _safeTransfer(from, to, tokenId, data);
    }
    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
    }
    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }
    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }
    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }
    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }
    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");
        _beforeTokenTransfer(address(0), to, tokenId);
        _balances[to] += 1;
        _owners[tokenId] = to;
        emit Transfer(address(0), to, tokenId);
        _afterTokenTransfer(address(0), to, tokenId);
    }
    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        _beforeTokenTransfer(owner, address(0), tokenId);
        // Clear approvals
        _approve(address(0), tokenId);
        _balances[owner] -= 1;
        delete _owners[tokenId];
        emit Transfer(owner, address(0), tokenId);
        _afterTokenTransfer(owner, address(0), tokenId);
    }
    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");
        _beforeTokenTransfer(from, to, tokenId);
        // Clear approvals from the previous owner
        _approve(address(0), tokenId);
        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;
        emit Transfer(from, to, tokenId);
        _afterTokenTransfer(from, to, tokenId);
    }
    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits an {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
    }
    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }
    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }
    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }
    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[44] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.
        return account.code.length > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
 * @title ERC721 Burnable Token
 * @dev ERC721 Token that can be burned (destroyed).
 */
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
    function __ERC721Burnable_init() internal onlyInitializing {
    }
    function __ERC721Burnable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
        _burn(tokenId);
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }
    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;
    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }
    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }
    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);
    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);
    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;
    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;
    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);
    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721ReceiverUpgradeable {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);
    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);
    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
 * @dev 100% in basis points.
 */
uint256 constant BASIS_POINTS = 10_000;
/**
 * @dev The default admin role defined by OZ ACL modules.
 */
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
/**
 * @dev Cap the number of royalty recipients.
 * A cap is required to ensure gas costs are not too high when a sale is settled.
 */
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
 * @dev The minimum increase of 10% required when making an offer or placing a bid.
 */
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
 * @dev The gas limit used when making external read-only calls.
 * This helps to ensure that external calls does not prevent the market from executing.
 */
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
 * @dev Default royalty cut paid out on secondary sales.
 * Set to 10% of the secondary sale.
 */
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
 * @dev 10%, expressed as a denominator for more efficient calculations.
 */
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
 * @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
 */
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
 * @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
 */
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../contracts/NFTCollection.sol";
contract $NFTCollection is NFTCollection {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _contractFactory) NFTCollection(_contractFactory) {}
    function $_burn(uint256 tokenId) external {
        return super._burn(tokenId);
    }
    function $_baseURI() external view returns (string memory) {
        return super._baseURI();
    }
    function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
        return super._initializeSequentialMintCollection(_creator,_maxTokenId);
    }
    function $_selfDestruct() external {
        return super._selfDestruct();
    }
    function $_updateMaxTokenId(uint32 _maxTokenId) external {
        return super._updateMaxTokenId(_maxTokenId);
    }
    function $__ERC721Burnable_init() external {
        return super.__ERC721Burnable_init();
    }
    function $__ERC721Burnable_init_unchained() external {
        return super.__ERC721Burnable_init_unchained();
    }
    function $__ERC721_init(string calldata name_,string calldata symbol_) external {
        return super.__ERC721_init(name_,symbol_);
    }
    function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
        return super.__ERC721_init_unchained(name_,symbol_);
    }
    function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
        return super._safeTransfer(from,to,tokenId,data);
    }
    function $_exists(uint256 tokenId) external view returns (bool) {
        return super._exists(tokenId);
    }
    function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
        return super._isApprovedOrOwner(spender,tokenId);
    }
    function $_safeMint(address to,uint256 tokenId) external {
        return super._safeMint(to,tokenId);
    }
    function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
        return super._safeMint(to,tokenId,data);
    }
    function $_mint(address to,uint256 tokenId) external {
        return super._mint(to,tokenId);
    }
    function $_transfer(address from,address to,uint256 tokenId) external {
        return super._transfer(from,to,tokenId);
    }
    function $_approve(address to,uint256 tokenId) external {
        return super._approve(to,tokenId);
    }
    function $_setApprovalForAll(address owner,address operator,bool approved) external {
        return super._setApprovalForAll(owner,operator,approved);
    }
    function $_requireMinted(uint256 tokenId) external view {
        return super._requireMinted(tokenId);
    }
    function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
        return super._beforeTokenTransfer(from,to,tokenId);
    }
    function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
        return super._afterTokenTransfer(from,to,tokenId);
    }
    function $__ERC165_init() external {
        return super.__ERC165_init();
    }
    function $__ERC165_init_unchained() external {
        return super.__ERC165_init_unchained();
    }
    function $__Context_init() external {
        return super.__Context_init();
    }
    function $__Context_init_unchained() external {
        return super.__Context_init_unchained();
    }
    function $_msgSender() external view returns (address) {
        return super._msgSender();
    }
    function $_msgData() external view returns (bytes memory) {
        return super._msgData();
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/interfaces/internal/INFTCollectionInitializer.sol";
abstract contract $INFTCollectionInitializer is INFTCollectionInitializer {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetFees.sol";
abstract contract $IGetFees is IGetFees {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetRoyalties.sol";
abstract contract $IGetRoyalties is IGetRoyalties {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IRoyaltyInfo.sol";
abstract contract $IRoyaltyInfo is IRoyaltyInfo {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/ITokenCreator.sol";
abstract contract $ITokenCreator is ITokenCreator {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../contracts/libraries/AddressLibrary.sol";
contract $AddressLibrary {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    event $callAndReturnContractAddress_address_bytes_Returned(address payable arg0);
    event $callAndReturnContractAddress_CallWithoutValue_Returned(address payable arg0);
    constructor() {}
    function $callAndReturnContractAddress(address externalContract,bytes calldata callData) external payable returns (address payable) {
        (address payable ret0) = AddressLibrary.callAndReturnContractAddress(externalContract,callData);
        emit $callAndReturnContractAddress_address_bytes_Returned(ret0);
        return (ret0);
    }
    function $callAndReturnContractAddress(CallWithoutValue calldata call) external payable returns (address payable) {
        (address payable ret0) = AddressLibrary.callAndReturnContractAddress(call);
        emit $callAndReturnContractAddress_CallWithoutValue_Returned(ret0);
        return (ret0);
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/CollectionRoyalties.sol";
abstract contract $CollectionRoyalties is CollectionRoyalties {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    function $__ERC165_init() external {
        return super.__ERC165_init();
    }
    function $__ERC165_init_unchained() external {
        return super.__ERC165_init_unchained();
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/SequentialMintCollection.sol";
contract $SequentialMintCollection is SequentialMintCollection {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor() {}
    function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
        return super._initializeSequentialMintCollection(_creator,_maxTokenId);
    }
    function $_selfDestruct() external {
        return super._selfDestruct();
    }
    function $_updateMaxTokenId(uint32 _maxTokenId) external {
        return super._updateMaxTokenId(_maxTokenId);
    }
    function $_burn(uint256 tokenId) external {
        return super._burn(tokenId);
    }
    function $__ERC721Burnable_init() external {
        return super.__ERC721Burnable_init();
    }
    function $__ERC721Burnable_init_unchained() external {
        return super.__ERC721Burnable_init_unchained();
    }
    function $__ERC721_init(string calldata name_,string calldata symbol_) external {
        return super.__ERC721_init(name_,symbol_);
    }
    function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
        return super.__ERC721_init_unchained(name_,symbol_);
    }
    function $_baseURI() external view returns (string memory) {
        return super._baseURI();
    }
    function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
        return super._safeTransfer(from,to,tokenId,data);
    }
    function $_exists(uint256 tokenId) external view returns (bool) {
        return super._exists(tokenId);
    }
    function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
        return super._isApprovedOrOwner(spender,tokenId);
    }
    function $_safeMint(address to,uint256 tokenId) external {
        return super._safeMint(to,tokenId);
    }
    function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
        return super._safeMint(to,tokenId,data);
    }
    function $_mint(address to,uint256 tokenId) external {
        return super._mint(to,tokenId);
    }
    function $_transfer(address from,address to,uint256 tokenId) external {
        return super._transfer(from,to,tokenId);
    }
    function $_approve(address to,uint256 tokenId) external {
        return super._approve(to,tokenId);
    }
    function $_setApprovalForAll(address owner,address operator,bool approved) external {
        return super._setApprovalForAll(owner,operator,approved);
    }
    function $_requireMinted(uint256 tokenId) external view {
        return super._requireMinted(tokenId);
    }
    function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
        return super._beforeTokenTransfer(from,to,tokenId);
    }
    function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
        return super._afterTokenTransfer(from,to,tokenId);
    }
    function $__ERC165_init() external {
        return super.__ERC165_init();
    }
    function $__ERC165_init_unchained() external {
        return super.__ERC165_init_unchained();
    }
    function $__Context_init() external {
        return super.__Context_init();
    }
    function $__Context_init_unchained() external {
        return super.__Context_init_unchained();
    }
    function $_msgSender() external view returns (address) {
        return super._msgSender();
    }
    function $_msgData() external view returns (bytes memory) {
        return super._msgData();
    }
    function $_disableInitializers() external {
        return super._disableInitializers();
    }
    receive() external payable {}
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/Constants.sol";
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/ContractFactory.sol";
contract $ContractFactory is ContractFactory {
    bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
    constructor(address _contractFactory) ContractFactory(_contractFactory) {}
    receive() external payable {}
}