// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;


// OpenZeppelin Contracts v4.4.1 (utils/Context.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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}


// OpenZeppelin Contracts v4.4.1 (access/Ownable.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);
    }
}


// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

/**
 * @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 `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}


contract SquigglesRaffle is Ownable, IERC721Receiver {
    ISquiggles public constant TOKEN =
        ISquiggles(0xBa07CD4712a308BE5F117292a07bEff94a7fE0cF);

    uint256 public mintPrice = 0.1 ether;
    bool public saleActive = true;

    mapping(address => bool) private allowed;
    mapping(address => bool) private minted;

    function setMintPrice(uint256 _value) external onlyOwner {
        mintPrice = _value;
    }

    function setSaleActive(bool _value) external onlyOwner {
        saleActive = _value;
    }

    function transfer(address _to, uint256 _tokenId) external onlyOwner {
        TOKEN.safeTransferFrom(address(this), _to, _tokenId);
    }

    function addToAllowed(address[] calldata _addresses) external onlyOwner {
        for (uint256 i = 0; i < _addresses.length; i++) {
            allowed[_addresses[i]] = true;
        }
    }

    function removeFromAllowed(address[] calldata _addresses) external onlyOwner {
        for (uint256 i = 0; i < _addresses.length; i++) {
            allowed[_addresses[i]] = false;
        }
    }

    function purchase() external payable {
        require(tx.origin == msg.sender, "Squiggles/no-contracts");
        require(saleActive, "Squiggles/sale-inactive");
        require(!minted[msg.sender], "Squiggles/exceeds-max");
        require(allowed[msg.sender], "Squiggles/not-allowed");
        require(mintPrice == msg.value, "Squiggles/insufficient-funds");

        minted[msg.sender] = true;
        uint256 tokenId = TOKEN.tokenOfOwnerByIndex(address(this), 0);
        TOKEN.safeTransferFrom(address(this), msg.sender, tokenId);
    }

    function withdraw() external onlyOwner {
        uint256 balance = address(this).balance;
        payable(msg.sender).transfer(balance);
    }

    function onERC721Received(
        address operator,
        address,
        uint256 tokenId,
        bytes calldata data
    ) external override returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

interface ISquiggles {
    function safeTransferFrom(address, address, uint256) external;
    function tokenOfOwnerByIndex(address, uint256) external view returns (uint256);
}