contract TokenERC721 is
    Initializable,
    ReentrancyGuardUpgradeable,
    EIP712Upgradeable,
    ERC2771ContextUpgradeable,
    MulticallUpgradeable,
    AccessControlEnumerableUpgradeable,
    ERC721EnumerableUpgradeable,
    ITokenERC721
{
    using ECDSAUpgradeable for bytes32;
    using StringsUpgradeable for uint256;

    bytes32 private constant MODULE_TYPE = bytes32("TokenERC721");
    uint256 private constant VERSION = 1;

    bytes32 private constant TYPEHASH =
        keccak256(
            "MintRequest(address to,address royaltyRecipient,uint256 royaltyBps,address primarySaleRecipient,string uri,uint256 price,address currency,uint128 validityStartTimestamp,uint128 validityEndTimestamp,bytes32 uid)"
        );

    /// @dev Only TRANSFER_ROLE holders can have tokens transferred from or to them, during restricted transfers.
    bytes32 private constant TRANSFER_ROLE = keccak256("TRANSFER_ROLE");
    /// @dev Only MINTER_ROLE holders can sign off on `MintRequest`s.
    bytes32 private constant MINTER_ROLE = keccak256("MINTER_ROLE");

    /// @dev Max bps in the thirdweb system
    uint256 private constant MAX_BPS = 10_000;

    /// @dev The address interpreted as native token of the chain.
    address private constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /// @dev The thirdweb contract with fee related information.
    ITWFee public immutable thirdwebFee;

    /// @dev Owner of the contract (purpose: OpenSea compatibility, etc.)
    address private _owner;

    /// @dev The token ID of the next token to mint.
    uint256 public nextTokenIdToMint;

    /// @dev The adress that receives all primary sales value.
    address public primarySaleRecipient;

    /// @dev The adress that receives all primary sales value.
    address public platformFeeRecipient;

    /// @dev The recipient of who gets the royalty.
    address private royaltyRecipient;

    /// @dev The percentage of royalty how much royalty in basis points.
    uint128 private royaltyBps;

    /// @dev The % of primary sales collected by the contract as fees.
    uint128 public platformFeeBps;

    /// @dev Contract level metadata.
    string public contractURI;

    /// @dev Mapping from mint request UID => whether the mint request is processed.
    mapping(bytes32 => bool) private minted;

    /// @dev Mapping from tokenId => URI
    mapping(uint256 => string) private uri;

    /// @dev Token ID => royalty recipient and bps for token
    mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;

    constructor(address _thirdwebFee) initializer {
        thirdwebFee = ITWFee(_thirdwebFee);
    }

    /// @dev Initiliazes the contract, like a constructor.
    function initialize(
        address _defaultAdmin,
        string memory _name,
        string memory _symbol,
        string memory _contractURI,
        address[] memory _trustedForwarders,
        address _saleRecipient,
        address _royaltyRecipient,
        uint128 _royaltyBps,
        uint128 _platformFeeBps,
        address _platformFeeRecipient
    ) external initializer {
        // Initialize inherited contracts, most base-like -> most derived.
        __ReentrancyGuard_init();
        __EIP712_init("TokenERC721", "1");
        __ERC2771Context_init(_trustedForwarders);
        __ERC721_init(_name, _symbol);

        // Initialize this contract's state.
        royaltyRecipient = _royaltyRecipient;
        royaltyBps = _royaltyBps;
        platformFeeRecipient = _platformFeeRecipient;
        primarySaleRecipient = _saleRecipient;
        contractURI = _contractURI;
        platformFeeBps = _platformFeeBps;

        _owner = _defaultAdmin;
        _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);
        _setupRole(MINTER_ROLE, _defaultAdmin);
        _setupRole(TRANSFER_ROLE, _defaultAdmin);
        _setupRole(TRANSFER_ROLE, address(0));
    }

    ///     =====   Public functions  =====

    /// @dev Returns the module type of the contract.
    function contractType() external pure returns (bytes32) {
        return MODULE_TYPE;
    }

    /// @dev Returns the version of the contract.
    function contractVersion() external pure returns (uint8) {
        return uint8(VERSION);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return hasRole(DEFAULT_ADMIN_ROLE, _owner) ? _owner : address(0);
    }

    /// @dev Verifies that a mint request is signed by an account holding MINTER_ROLE (at the time of the function call).
    function verify(MintRequest calldata _req, bytes calldata _signature) public view returns (bool, address) {
        address signer = recoverAddress(_req, _signature);
        return (!minted[_req.uid] && hasRole(MINTER_ROLE, signer), signer);
    }

    /// @dev Returns the URI for a tokenId
    function tokenURI(uint256 _tokenId) public view override returns (string memory) {
        return uri[_tokenId];
    }

    /// @dev Lets an account with MINTER_ROLE mint an NFT.
    function mintTo(address _to, string calldata _uri) external onlyRole(MINTER_ROLE) returns (uint256) {
        // `_mintTo` is re-used. `mintTo` just adds a minter role check.
        return _mintTo(_to, _uri);
    }

    ///     =====   External functions  =====

    /// @dev See EIP-2981
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        virtual
        returns (address receiver, uint256 royaltyAmount)
    {
        (address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);
        receiver = recipient;
        royaltyAmount = (salePrice * bps) / MAX_BPS;
    }

    /// @dev Mints an NFT according to the provided mint request.
    function mintWithSignature(MintRequest calldata _req, bytes calldata _signature)
        external
        payable
        nonReentrant
        returns (uint256 tokenIdMinted)
    {
        address signer = verifyRequest(_req, _signature);
        address receiver = _req.to == address(0) ? _msgSender() : _req.to;

        tokenIdMinted = _mintTo(receiver, _req.uri);

        if (_req.royaltyRecipient != address(0)) {
            royaltyInfoForToken[tokenIdMinted] = RoyaltyInfo({
                recipient: _req.royaltyRecipient,
                bps: _req.royaltyBps
            });
        }

        collectPrice(_req);

        emit TokensMintedWithSignature(signer, receiver, tokenIdMinted, _req);
    }

    //      =====   Setter functions  =====

    /// @dev Lets a module admin set the default recipient of all primary sales.
    function setPrimarySaleRecipient(address _saleRecipient) external onlyRole(DEFAULT_ADMIN_ROLE) {
        primarySaleRecipient = _saleRecipient;
        emit PrimarySaleRecipientUpdated(_saleRecipient);
    }

    /// @dev Lets a module admin update the royalty bps and recipient.
    function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps)
        external
        onlyRole(DEFAULT_ADMIN_ROLE)
    {
        require(_royaltyBps <= MAX_BPS, "exceed royalty bps");

        royaltyRecipient = _royaltyRecipient;
        royaltyBps = uint128(_royaltyBps);

        emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);
    }

    /// @dev Lets a module admin set the royalty recipient for a particular token Id.
    function setRoyaltyInfoForToken(
        uint256 _tokenId,
        address _recipient,
        uint256 _bps
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(_bps <= MAX_BPS, "exceed royalty bps");

        royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });

        emit RoyaltyForToken(_tokenId, _recipient, _bps);
    }

    /// @dev Lets a module admin update the fees on primary sales.
    function setPlatformFeeInfo(address _platformFeeRecipient, uint256 _platformFeeBps)
        external
        onlyRole(DEFAULT_ADMIN_ROLE)
    {
        require(_platformFeeBps <= MAX_BPS, "bps <= 10000.");

        platformFeeBps = uint64(_platformFeeBps);
        platformFeeRecipient = _platformFeeRecipient;

        emit PlatformFeeInfoUpdated(_platformFeeRecipient, _platformFeeBps);
    }

    /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
    function setOwner(address _newOwner) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(hasRole(DEFAULT_ADMIN_ROLE, _newOwner), "new owner not module admin.");
        address _prevOwner = _owner;
        _owner = _newOwner;

        emit OwnerUpdated(_prevOwner, _newOwner);
    }

    /// @dev Lets a module admin set the URI for contract-level metadata.
    function setContractURI(string calldata _uri) external onlyRole(DEFAULT_ADMIN_ROLE) {
        contractURI = _uri;
    }

    ///     =====   Getter functions    =====

    /// @dev Returns the platform fee bps and recipient.
    function getPlatformFeeInfo() external view returns (address, uint16) {
        return (platformFeeRecipient, uint16(platformFeeBps));
    }

    /// @dev Returns the platform fee bps and recipient.
    function getDefaultRoyaltyInfo() external view returns (address, uint16) {
        return (royaltyRecipient, uint16(royaltyBps));
    }

    /// @dev Returns the royalty recipient for a particular token Id.
    function getRoyaltyInfoForToken(uint256 _tokenId) public view returns (address, uint16) {
        RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];

        return
            royaltyForToken.recipient == address(0)
                ? (royaltyRecipient, uint16(royaltyBps))
                : (royaltyForToken.recipient, uint16(royaltyForToken.bps));
    }

    ///     =====   Internal functions  =====

    /// @dev Mints an NFT to `to`
    function _mintTo(address _to, string calldata _uri) internal returns (uint256 tokenIdToMint) {
        tokenIdToMint = nextTokenIdToMint;
        nextTokenIdToMint += 1;

        uri[tokenIdToMint] = _uri;

        _mint(_to, tokenIdToMint);

        emit TokensMinted(_to, tokenIdToMint, _uri);
    }

    /// @dev Returns the address of the signer of the mint request.
    function recoverAddress(MintRequest calldata _req, bytes calldata _signature) private view returns (address) {
        return _hashTypedDataV4(keccak256(_encodeRequest(_req))).recover(_signature);
    }

    /// @dev Resolves 'stack too deep' error in `recoverAddress`.
    function _encodeRequest(MintRequest calldata _req) private pure returns (bytes memory) {
        return
            abi.encode(
                TYPEHASH,
                _req.to,
                _req.royaltyRecipient,
                _req.royaltyBps,
                _req.primarySaleRecipient,
                keccak256(bytes(_req.uri)),
                _req.price,
                _req.currency,
                _req.validityStartTimestamp,
                _req.validityEndTimestamp,
                _req.uid
            );
    }

    /// @dev Verifies that a mint request is valid.
    function verifyRequest(MintRequest calldata _req, bytes calldata _signature) internal returns (address) {
        (bool success, address signer) = verify(_req, _signature);
        require(success, "invalid signature");

        require(
            _req.validityStartTimestamp <= block.timestamp && _req.validityEndTimestamp >= block.timestamp,
            "request expired"
        );

        minted[_req.uid] = true;

        return signer;
    }

    /// @dev Collects and distributes the primary sale value of tokens being claimed.
    function collectPrice(MintRequest memory _req) internal {
        if (_req.price == 0) {
            return;
        }

        uint256 totalPrice = _req.price;
        uint256 platformFees = (totalPrice * platformFeeBps) / MAX_BPS;
        (address twFeeRecipient, uint256 twFeeBps) = thirdwebFee.getFeeInfo(address(this), FeeType.PRIMARY_SALE);
        uint256 twFee = (totalPrice * twFeeBps) / MAX_BPS;

        if (_req.currency == NATIVE_TOKEN) {
            require(msg.value == totalPrice, "must send total price.");
        }

        address saleRecipient = _req.primarySaleRecipient == address(0)
            ? primarySaleRecipient
            : _req.primarySaleRecipient;

        CurrencyTransferLib.transferCurrency(_req.currency, _msgSender(), platformFeeRecipient, platformFees);
        CurrencyTransferLib.transferCurrency(_req.currency, _msgSender(), twFeeRecipient, twFee);
        CurrencyTransferLib.transferCurrency(
            _req.currency,
            _msgSender(),
            saleRecipient,
            totalPrice - platformFees - twFee
        );
    }

    ///     =====   Low-level overrides  =====

    /// @dev Burns `tokenId`. See {ERC721-_burn}.
    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
        _burn(tokenId);
    }

    /// @dev See {ERC721-_beforeTokenTransfer}.
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override(ERC721EnumerableUpgradeable) {
        super._beforeTokenTransfer(from, to, tokenId);

        // if transfer is restricted on the contract, we still want to allow burning and minting
        if (!hasRole(TRANSFER_ROLE, address(0)) && from != address(0) && to != address(0)) {
            require(hasRole(TRANSFER_ROLE, from) || hasRole(TRANSFER_ROLE, to), "restricted to TRANSFER_ROLE holders");
        }
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(AccessControlEnumerableUpgradeable, ERC721EnumerableUpgradeable, IERC165Upgradeable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId) || interfaceId == type(IERC2981Upgradeable).interfaceId;
    }

    function _msgSender()
        internal
        view
        virtual
        override(ContextUpgradeable, ERC2771ContextUpgradeable)
        returns (address sender)
    {
        return ERC2771ContextUpgradeable._msgSender();
    }

    function _msgData()
        internal
        view
        virtual
        override(ContextUpgradeable, ERC2771ContextUpgradeable)
        returns (bytes calldata)
    {
        return ERC2771ContextUpgradeable._msgData();
    }
}
function initialize(
    address _defaultAdmin,
    string memory _name,
    string memory _symbol,
    string memory _contractURI,
    address[] memory _trustedForwarders,
    address _saleRecipient,
    address _royaltyRecipient,
    uint128 _royaltyBps,
    uint128 _platformFeeBps,
    address _platformFeeRecipient
) external initializer {
    // Initialize inherited contracts, most base-like -> most derived.
    __ReentrancyGuard_init();
    __EIP712_init("TokenERC721", "1");
    __ERC2771Context_init(_trustedForwarders);
    __ERC721_init(_name, _symbol);

    // Initialize this contract's state.
    royaltyRecipient = _royaltyRecipient;
    royaltyBps = _royaltyBps;
    platformFeeRecipient = _platformFeeRecipient;
    primarySaleRecipient = _saleRecipient;
    contractURI = _contractURI;
    platformFeeBps = _platformFeeBps;

    _owner = _defaultAdmin;
    _setupRole(DEFAULT_ADMIN_ROLE, _defaultAdmin);
    _setupRole(MINTER_ROLE, _defaultAdmin);
    _setupRole(TRANSFER_ROLE, _defaultAdmin);
    _setupRole(TRANSFER_ROLE, address(0));
}

/// @dev Initiliazes the contract, like a constructor.