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// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.15;

// Interfaces
import {IERC20} from "src/interfaces/IERC20.sol";
import {IERC20BurnableMintable} from "src/interfaces/IERC20BurnableMintable.sol";
import {IDepositReceiptToken} from "src/interfaces/IDepositReceiptToken.sol";
import {IERC165} from "@openzeppelin-5.3.0/interfaces/IERC165.sol";

// Libraries
import {CloneERC20} from "src/external/clones/CloneERC20.sol";

/// @title  CloneableReceiptToken
/// @notice ERC20 implementation that is deployed as a clone
///         with immutable arguments for each supported input token.
contract CloneableReceiptToken is CloneERC20, IERC20BurnableMintable, IDepositReceiptToken {
    // ========== IMMUTABLE ARGS ========== //

    // Storage layout:
    // 0x00 - name, 32 bytes
    // 0x20 - symbol, 32 bytes
    // 0x40 - decimals, 1 byte
    // 0x41 - owner, 20 bytes
    // 0x55 - asset, 20 bytes
    // 0x69 - depositPeriod, 1 byte
    // 0x6A - operator, 20 bytes

    /// @notice The owner of the clone
    /// @return _owner The owner address stored in immutable args
    function owner() public pure returns (address _owner) {
        _owner = _getArgAddress(0x41);
    }

    /// @notice The underlying asset
    /// @return _asset The asset address stored in immutable args
    function asset() public pure returns (IERC20 _asset) {
        _asset = IERC20(_getArgAddress(0x55));
    }

    /// @notice The deposit period (in months)
    /// @return _depositPeriod The deposit period stored in immutable args
    function depositPeriod() public pure returns (uint8 _depositPeriod) {
        _depositPeriod = _getArgUint8(0x69);
    }

    /// @notice The operator that issued the receipt token
    /// @return _operator The operator address stored in immutable args
    function operator() public pure returns (address _operator) {
        _operator = _getArgAddress(0x6A);
    }

    // ========== OWNER-ONLY FUNCTIONS ========== //

    function _onlyOwner() internal view {
        if (msg.sender != owner()) revert OnlyOwner();
    }

    /// @notice Only the owner can call this function
    modifier onlyOwner() {
        _onlyOwner();
        _;
    }

    /// @notice Mint tokens to the specified address
    /// @dev    This is owner-only, as the underlying token is custodied by the owner.
    ///         Minting should be performed through the owner contract.
    ///
    /// @param to_ The address to mint tokens to
    /// @param amount_ The amount of tokens to mint
    function mintFor(address to_, uint256 amount_) external onlyOwner {
        _mint(to_, amount_);
    }

    /// @notice Burn tokens from the specified address
    /// @dev    This is gated to the owner, as burning is controlled.
    ///         Burning should be performed through the owner contract.
    ///         The owner is expected to handle spending approval before calling this function.
    ///         This function does NOT check or update allowances.
    ///
    /// @param from_ The address to burn tokens from
    /// @param amount_ The amount of tokens to burn
    function burnFrom(address from_, uint256 amount_) external onlyOwner {
        _burn(from_, amount_);
    }

    // ========== ERC165 ========== //

    function supportsInterface(bytes4 interfaceId_) public pure returns (bool) {
        // super does not implement ERC165, so no need to call it
        return
            interfaceId_ == type(IERC165).interfaceId ||
            interfaceId_ == type(IERC20).interfaceId ||
            interfaceId_ == type(IERC20BurnableMintable).interfaceId ||
            interfaceId_ == type(IDepositReceiptToken).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

// Imported from forge-std

/// @dev Interface of the ERC20 standard as defined in the EIP.
/// @dev This includes the optional name, symbol, and decimals metadata.
interface IERC20 {
    /// @dev Emitted when `value` tokens are moved from one account (`from`) to another (`to`).
    event Transfer(address indexed from, address indexed to, uint256 value);

    /// @dev Emitted when the allowance of a `spender` for an `owner` is set, where `value`
    /// is the new allowance.
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /// @notice Returns the amount of tokens in existence.
    function totalSupply() external view returns (uint256);

    /// @notice Returns the amount of tokens owned by `account`.
    function balanceOf(address account) external view returns (uint256);

    /// @notice Moves `amount` tokens from the caller's account to `to`.
    function transfer(address to, uint256 amount) external returns (bool);

    /// @notice Returns the remaining number of tokens that `spender` is allowed
    /// to spend on behalf of `owner`
    function allowance(address owner, address spender) external view returns (uint256);

    /// @notice Sets `amount` as the allowance of `spender` over the caller's tokens.
    /// @dev Be aware of front-running risks: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    function approve(address spender, uint256 amount) external returns (bool);

    /// @notice Moves `amount` tokens from `from` to `to` using the allowance mechanism.
    /// `amount` is then deducted from the caller's allowance.
    function transferFrom(address from, address to, uint256 amount) external returns (bool);

    /// @notice Returns the name of the token.
    function name() external view returns (string memory);

    /// @notice Returns the symbol of the token.
    function symbol() external view returns (string memory);

    /// @notice Returns the decimals places of the token.
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.15;

import {IERC20} from "src/interfaces/IERC20.sol";

interface IERC20BurnableMintable is IERC20 {
    /// @notice Mints tokens to the specified address
    ///
    /// @param to_      The address to mint tokens to
    /// @param amount_  The amount of tokens to mint
    function mintFor(address to_, uint256 amount_) external;

    /// @notice Burns tokens from the specified address
    ///
    /// @param from_    The address to burn tokens from
    /// @param amount_  The amount of tokens to burn
    function burnFrom(address from_, uint256 amount_) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.15;

import {IERC20} from "src/interfaces/IERC20.sol";

/// @title  IDepositReceiptToken
/// @notice Interface for a deposit receipt token
/// @dev    This interface adds additional metadata to the IERC20 interface that is necessary for deposit receipt tokens.
interface IDepositReceiptToken is IERC20 {
    // ========== ERRORS ========== //

    error OnlyOwner();

    // ========== VIEW FUNCTIONS ========== //

    function owner() external view returns (address _owner);

    function asset() external view returns (IERC20 _asset);

    function depositPeriod() external view returns (uint8 _depositPeriod);

    function operator() external view returns (address _operator);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";

// SPDX-License-Identifier: BSD
pragma solidity >=0.8.0;

import {Clone} from "@clones-with-immutable-args-1.1.2/Clone.sol";
import {IERC20} from "src/interfaces/IERC20.sol";

/// @notice Modern and gas efficient ERC20 implementation.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract CloneERC20 is Clone, IERC20 {
    /*///////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*///////////////////////////////////////////////////////////////
                               METADATA
    //////////////////////////////////////////////////////////////*/

    function name() external pure returns (string memory) {
        return string(abi.encodePacked(_getArgUint256(0)));
    }

    function symbol() external pure returns (string memory) {
        return string(abi.encodePacked(_getArgUint256(0x20)));
    }

    function decimals() external pure returns (uint8) {
        return _getArgUint8(0x40);
    }

    /*///////////////////////////////////////////////////////////////
                              ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function increaseAllowance(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] += amount;

        emit Approval(msg.sender, spender, allowance[msg.sender][spender]);

        return true;
    }

    function decreaseAllowance(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] -= amount;

        emit Approval(msg.sender, spender, allowance[msg.sender][spender]);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*///////////////////////////////////////////////////////////////
                       INTERNAL LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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: BSD
pragma solidity ^0.8.4;

/// @title Clone
/// @author zefram.eth
/// @notice Provides helper functions for reading immutable args from calldata
contract Clone {
    /// @notice Reads an immutable arg with type address
    /// @param argOffset The offset of the arg in the packed data
    /// @return arg The arg value
    function _getArgAddress(
        uint256 argOffset
    ) internal pure returns (address arg) {
        uint256 offset = _getImmutableArgsOffset();
        // solhint-disable-next-line no-inline-assembly
        assembly {
            arg := shr(0x60, calldataload(add(offset, argOffset)))
        }
    }

    /// @notice Reads an immutable arg with type uint256
    /// @param argOffset The offset of the arg in the packed data
    /// @return arg The arg value
    function _getArgUint256(
        uint256 argOffset
    ) internal pure returns (uint256 arg) {
        uint256 offset = _getImmutableArgsOffset();
        // solhint-disable-next-line no-inline-assembly
        assembly {
            arg := calldataload(add(offset, argOffset))
        }
    }

    /// @notice Reads a uint256 array stored in the immutable args.
    /// @param argOffset The offset of the arg in the packed data
    /// @param arrLen Number of elements in the array
    /// @return arr The array
    function _getArgUint256Array(
        uint256 argOffset,
        uint64 arrLen
    ) internal pure returns (uint256[] memory arr) {
        uint256 offset = _getImmutableArgsOffset();
        uint256 el;
        arr = new uint256[](arrLen);
        for (uint64 i = 0; i < arrLen; i++) {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                el := calldataload(add(add(offset, argOffset), mul(i, 32)))
            }
            arr[i] = el;
        }
        return arr;
    }

    /// @notice Reads an immutable arg with type uint64
    /// @param argOffset The offset of the arg in the packed data
    /// @return arg The arg value
    function _getArgUint64(
        uint256 argOffset
    ) internal pure returns (uint64 arg) {
        uint256 offset = _getImmutableArgsOffset();
        // solhint-disable-next-line no-inline-assembly
        assembly {
            arg := shr(0xc0, calldataload(add(offset, argOffset)))
        }
    }

    /// @notice Reads an immutable arg with type uint8
    /// @param argOffset The offset of the arg in the packed data
    /// @return arg The arg value
    function _getArgUint8(uint256 argOffset) internal pure returns (uint8 arg) {
        uint256 offset = _getImmutableArgsOffset();
        // solhint-disable-next-line no-inline-assembly
        assembly {
            arg := shr(0xf8, calldataload(add(offset, argOffset)))
        }
    }

    /// @return offset The offset of the packed immutable args in calldata
    function _getImmutableArgsOffset() internal pure returns (uint256 offset) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            offset := sub(
                calldatasize(),
                add(shr(240, calldataload(sub(calldatasize(), 2))), 2)
            )
        }
    }
}

{
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    "modules/=src/modules/",
    "policies/=src/policies/",
    "libraries/=src/libraries/",
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    "test/mocks/=src/test/mocks/",
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    "@chainlink/contracts-ccip/contracts/=dependencies/chainlink-ccip-1.6.0/contracts/src/v0.8/ccip/",
    "@chainlink/contracts/=dependencies/chainlink-ccip-1.6.0/contracts/",
    "@forge-std-1.9.6/=dependencies/forge-std-1.9.6/src/",
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  "optimizer": {
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    "runs": 10000
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  "metadata": {
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    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
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  },
  "evmVersion": "prague",
  "viaIR": false
}

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