// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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);
    }
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 IERC721Receiver {
    /**
     * @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 `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.0;

import "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
 */
contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address,
        address,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// File: contracts/Mint.sol



// SPDX-License-Identifier: Apache-2.0

pragma solidity ^0.8.0;

import "./Whitelist.sol";
import {ERC721Holder} from "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";

interface IToken {
    function mintHedgie(uint256 tier, bytes32[] calldata merkleProof) external;

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    function tokenOfOwnerByIndex(address owner, uint256 index)
        external
        view
        returns (uint256);
}

contract Mint is ERC721Holder, Whitelist {
    address public _contractAddress;
    bytes32[] public _merkleProof;

    constructor(address contractAddress, bytes32[] memory merkleProof) {
        _contractAddress = contractAddress;
        _merkleProof = merkleProof;
    }

    function mint(uint256 amount) external onlyWhitelisted {
        IToken token = IToken(_contractAddress);

        uint256 mintedAmount = amount;

        for (uint256 i = 0; i < amount; i++) {
            try token.mintHedgie(2, _merkleProof) {
                continue;
            } catch {
                mintedAmount = i;
                break;
            }
        }

        if (mintedAmount > 0) {
            _withdraw(_getTokenIds(mintedAmount), msg.sender);
        }
    }

    function _getTokenIds(uint256 amount) internal returns (uint256[] memory) {
        IToken token = IToken(_contractAddress);
        uint256[] memory tokenIds = new uint256[](amount);
        for (uint256 i = 0; i < amount; i++) {
            tokenIds[i] = token.tokenOfOwnerByIndex(address(this), i);
        }
        return tokenIds;
    }

    function _withdraw(uint256[] memory tokenIds, address recipient) internal {
        IToken token = IToken(_contractAddress);
        for (uint256 i = 0; i < tokenIds.length; i++) {
            token.safeTransferFrom(address(this), recipient, tokenIds[i]);
        }
    }

    function withdraw(uint256[] calldata tokenIds, address recipient)
        external
        onlyWhitelisted
    {
        _withdraw(tokenIds, recipient);
    }
}

// File: contracts/Whitelist.sol



// SPDX-License-Identifier: Apache-2.0

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";

contract Whitelist is Ownable {
    mapping(address => bool) whitelist;
    event AddedToWhitelist(address indexed account);
    event RemovedFromWhitelist(address indexed account);

    modifier onlyWhitelisted() {
        require(isWhitelisted(msg.sender), "Address not whitelisted");
        _;
    }

    function addToWhitelist(address[] calldata _addresses) public onlyOwner {
        for (uint256 i = 0; i < _addresses.length; i++) {
            whitelist[_addresses[i]] = true;
            emit AddedToWhitelist(_addresses[i]);
        }
    }

    function removeFromWhitelist(address _address) public onlyOwner {
        whitelist[_address] = false;
        emit RemovedFromWhitelist(_address);
    }

    function isWhitelisted(address _address) public view returns (bool) {
        return whitelist[_address];
    }
}