// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;
    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);
    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }
    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }
    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }
    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }
    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }
    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }
    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
 * @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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.24;
import { IERC721 } from "./IERC721.sol";
import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
/*
I see you nerd! ⌐⊙_⊙
*/
contract CoolmanAirdrop is Ownable {
    address public nft1;
    address public nft2;
    bool public isLive;
    struct AirdropInfo {
        bytes32 account;
        address nft;
        uint256 tokenId;
    }
    struct NFTToken {
        address nft;
        uint256 tokenId;
    }
    mapping (address => mapping(uint256 => bool)) public claimed;
    // errors
    error AlreadyClaimed();
    error InvalidNft();
    error NotLive();
    error NotOwner();
    event AirdropVerified(bytes32 account, address nft, uint256 tokenId);
    event AirdropDeleted(address nft, uint256 tokenId);
    constructor(address _nft1, address _nft2) Ownable(msg.sender) {
        nft1 = _nft1;
        nft2 = _nft2;
    }
    function _verifyAirdrop(AirdropInfo memory airdropInfo) internal {
        if (airdropInfo.nft != nft1 && airdropInfo.nft != nft2) {
            revert InvalidNft();
        }
        if (claimed[airdropInfo.nft][airdropInfo.tokenId]) {
            revert AlreadyClaimed();
        }
        if (IERC721(airdropInfo.nft).ownerOf(airdropInfo.tokenId) != msg.sender) {
            revert NotOwner();
        }
        claimed[airdropInfo.nft][airdropInfo.tokenId] = true;
        emit AirdropVerified(airdropInfo.account, airdropInfo.nft, airdropInfo.tokenId);
    }
    function verifyAirdrop(AirdropInfo memory airdropInfo) public {
        if (!isLive) {
            revert NotLive();
        }
        _verifyAirdrop(airdropInfo);
    }
    function verifyAirdrops(AirdropInfo[] memory airdropInfos) public {
        if (!isLive) {
            revert NotLive();
        }
        unchecked {
            for (uint256 i = 0; i < airdropInfos.length; ++i) {
                _verifyAirdrop(airdropInfos[i]);
            }
        }
    }
    function deleteAirdrops(NFTToken[] memory nftTokens) public onlyOwner {
        unchecked {
            for (uint256 i = 0; i < nftTokens.length; ++i) {
                claimed[nftTokens[i].nft][nftTokens[i].tokenId] = false;
                emit AirdropDeleted(nftTokens[i].nft, nftTokens[i].tokenId);
            }
        }
    }
    function goLive() public onlyOwner {
        isLive = true;
    }
    function pause() public onlyOwner {
        isLive = false;
    }
}
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.24;
interface IERC721 {
    function ownerOf(uint256 tokenId) external view returns (address owner);
}