// SPDX-License-Identifier: MIT

// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;

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: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;

abstract contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        _transferOwnership(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File @openzeppelin/contracts/utils/Strings.sol@v4.5.0
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    function toString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    function toHexString(uint256 value, uint256 length)
        internal
        pure
        returns (string memory)
    {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// File: erc721a/contracts/IERC721A.sol
// ERC721A Contracts v4.0.0
pragma solidity ^0.8.4;

interface IERC721A {
    error ApprovalCallerNotOwnerNorApproved();
    error ApprovalQueryForNonexistentToken();
    error ApproveToCaller();
    error ApprovalToCurrentOwner();
    error BalanceQueryForZeroAddress();
    error MintToZeroAddress();
    error MintZeroQuantity();
    error OwnerQueryForNonexistentToken();
    error TransferCallerNotOwnerNorApproved();
    error TransferFromIncorrectOwner();
    error TransferToNonERC721ReceiverImplementer();
    error TransferToZeroAddress();
    error URIQueryForNonexistentToken();
    struct TokenOwnership {
        address addr;
        uint64 startTimestamp;
        bool burned;
    }

    function totalSupply() external view returns (uint256);

    function supportsInterface(bytes4 interfaceId) external view returns (bool);

    event Transfer(
        address indexed from,
        address indexed to,
        uint256 indexed tokenId
    );
    event Approval(
        address indexed owner,
        address indexed approved,
        uint256 indexed tokenId
    );
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    function balanceOf(address owner) external view returns (uint256 balance);

    function ownerOf(uint256 tokenId) external view returns (address owner);

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    function approve(address to, uint256 tokenId) external;

    function setApprovalForAll(address operator, bool _approved) external;

    function getApproved(uint256 tokenId)
        external
        view
        returns (address operator);

    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// File: erc721a/contracts/ERC721A.sol
// ERC721A Contracts v4.0.0
pragma solidity ^0.8.4;

interface ERC721A__IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

contract ERC721A is IERC721A {
    uint256 private constant BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
    uint256 private constant BITPOS_NUMBER_MINTED = 64;
    uint256 private constant BITPOS_NUMBER_BURNED = 128;
    uint256 private constant BITPOS_AUX = 192;
    uint256 private constant BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
    uint256 private constant BITPOS_START_TIMESTAMP = 160;
    uint256 private constant BITMASK_BURNED = 1 << 224;
    uint256 private constant BITPOS_NEXT_INITIALIZED = 225;
    uint256 private constant BITMASK_NEXT_INITIALIZED = 1 << 225;
    uint256 private _currentIndex;
    uint256 private _burnCounter;
    string private _name;
    string private _symbol;
    mapping(uint256 => uint256) private _packedOwnerships;
    mapping(address => uint256) private _packedAddressData;
    mapping(uint256 => address) private _tokenApprovals;
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    function _startTokenId() internal view virtual returns (uint256) {
        return 1;
    }

    function _nextTokenId() internal view returns (uint256) {
        return _currentIndex;
    }

    function totalSupply() public view override returns (uint256) {
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    function _totalMinted() internal view returns (uint256) {
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    function _totalBurned() internal view returns (uint256) {
        return _burnCounter;
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override
        returns (bool)
    {
        return
            interfaceId == 0x01ffc9a7 ||
            interfaceId == 0x80ac58cd ||
            interfaceId == 0x5b5e139f;
    }

    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return _packedAddressData[owner] & BITMASK_ADDRESS_DATA_ENTRY;
    }

    function _numberMinted(address owner) internal view returns (uint256) {
        return
            (_packedAddressData[owner] >> BITPOS_NUMBER_MINTED) &
            BITMASK_ADDRESS_DATA_ENTRY;
    }

    function _numberBurned(address owner) internal view returns (uint256) {
        return
            (_packedAddressData[owner] >> BITPOS_NUMBER_BURNED) &
            BITMASK_ADDRESS_DATA_ENTRY;
    }

    function _getAux(address owner) internal view returns (uint64) {
        return uint64(_packedAddressData[owner] >> BITPOS_AUX);
    }

    function _setAux(address owner, uint64 aux) internal {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        assembly {
            auxCasted := aux
        }
        packed = (packed & BITMASK_AUX_COMPLEMENT) | (auxCasted << BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    function _packedOwnershipOf(uint256 tokenId)
        private
        view
        returns (uint256)
    {
        uint256 curr = tokenId;
        unchecked {
            if (_startTokenId() <= curr)
                if (curr < _currentIndex) {
                    uint256 packed = _packedOwnerships[curr];
                    if (packed & BITMASK_BURNED == 0) {
                        while (packed == 0) {
                            packed = _packedOwnerships[--curr];
                        }
                        return packed;
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    function _unpackedOwnership(uint256 packed)
        private
        pure
        returns (TokenOwnership memory ownership)
    {
        ownership.addr = address(uint160(packed));
        ownership.startTimestamp = uint64(packed >> BITPOS_START_TIMESTAMP);
        ownership.burned = packed & BITMASK_BURNED != 0;
    }

    function _ownershipAt(uint256 index)
        internal
        view
        returns (TokenOwnership memory)
    {
        return _unpackedOwnership(_packedOwnerships[index]);
    }

    function _initializeOwnershipAt(uint256 index) internal {
        if (_packedOwnerships[index] == 0) {
            _packedOwnerships[index] = _packedOwnershipOf(index);
        }
    }

    function _ownershipOf(uint256 tokenId)
        internal
        view
        returns (TokenOwnership memory)
    {
        return _unpackedOwnership(_packedOwnershipOf(tokenId));
    }

    function ownerOf(uint256 tokenId) public view override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
        string memory baseURI = _baseURI();
        return
            bytes(baseURI).length != 0
                ? string(abi.encodePacked(baseURI, _toString(tokenId)))
                : "";
    }

    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    function _addressToUint256(address value)
        private
        pure
        returns (uint256 result)
    {
        assembly {
            result := value
        }
    }

    function _boolToUint256(bool value) private pure returns (uint256 result) {
        assembly {
            result := value
        }
    }

    function approve(address to, uint256 tokenId) public override {
        address owner = address(uint160(_packedOwnershipOf(tokenId)));
        if (to == owner) revert ApprovalToCurrentOwner();
        if (_msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                revert ApprovalCallerNotOwnerNorApproved();
            }
        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    function getApproved(uint256 tokenId)
        public
        view
        override
        returns (address)
    {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
        return _tokenApprovals[tokenId];
    }

    function setApprovalForAll(address operator, bool approved)
        public
        virtual
        override
    {
        if (operator == _msgSenderERC721A()) revert ApproveToCaller();
        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

    function isApprovedForAll(address owner, address operator)
        public
        view
        virtual
        override
        returns (bool)
    {
        return _operatorApprovals[owner][operator];
    }

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

    function _exists(uint256 tokenId) internal view returns (bool) {
        return
            _startTokenId() <= tokenId &&
            tokenId < _currentIndex &&
            _packedOwnerships[tokenId] & BITMASK_BURNED == 0;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, "");
    }

    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();
        _beforeTokenTransfers(address(0), to, startTokenId, quantity);
        unchecked {
            _packedAddressData[to] +=
                quantity *
                ((1 << BITPOS_NUMBER_MINTED) | 1);
            _packedOwnerships[startTokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);
            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;
            if (to.code.length != 0) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (
                        !_checkContractOnERC721Received(
                            address(0),
                            to,
                            updatedIndex++,
                            _data
                        )
                    ) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex < end);
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex < end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    function _mint(address to, uint256 quantity) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();
        _beforeTokenTransfers(address(0), to, startTokenId, quantity);
        unchecked {
            _packedAddressData[to] +=
                quantity *
                ((1 << BITPOS_NUMBER_MINTED) | 1);
            _packedOwnerships[startTokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                (_boolToUint256(quantity == 1) << BITPOS_NEXT_INITIALIZED);
            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;
            do {
                emit Transfer(address(0), to, updatedIndex++);
            } while (updatedIndex < end);
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
        if (address(uint160(prevOwnershipPacked)) != from)
            revert TransferFromIncorrectOwner();
        bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
            isApprovedForAll(from, _msgSenderERC721A()) ||
            getApproved(tokenId) == _msgSenderERC721A());
        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();
        _beforeTokenTransfers(from, to, tokenId, 1);
        delete _tokenApprovals[tokenId];
        unchecked {
            --_packedAddressData[from];
            ++_packedAddressData[to];
            _packedOwnerships[tokenId] =
                _addressToUint256(to) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_NEXT_INITIALIZED;
            if (prevOwnershipPacked & BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                if (_packedOwnerships[nextTokenId] == 0) {
                    if (nextTokenId != _currentIndex) {
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }
        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
        address from = address(uint160(prevOwnershipPacked));
        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSenderERC721A() == from ||
                isApprovedForAll(from, _msgSenderERC721A()) ||
                getApproved(tokenId) == _msgSenderERC721A());
            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }
        _beforeTokenTransfers(from, address(0), tokenId, 1);
        delete _tokenApprovals[tokenId];
        unchecked {
            _packedAddressData[from] += (1 << BITPOS_NUMBER_BURNED) - 1;
            _packedOwnerships[tokenId] =
                _addressToUint256(from) |
                (block.timestamp << BITPOS_START_TIMESTAMP) |
                BITMASK_BURNED |
                BITMASK_NEXT_INITIALIZED;
            if (prevOwnershipPacked & BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                if (_packedOwnerships[nextTokenId] == 0) {
                    if (nextTokenId != _currentIndex) {
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }
        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);
        unchecked {
            _burnCounter++;
        }
    }

    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try
            ERC721A__IERC721Receiver(to).onERC721Received(
                _msgSenderERC721A(),
                from,
                tokenId,
                _data
            )
        returns (bytes4 retval) {
            return
                retval ==
                ERC721A__IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    function _msgSenderERC721A() internal view virtual returns (address) {
        return msg.sender;
    }

    function _toString(uint256 value)
        internal
        pure
        returns (string memory ptr)
    {
        assembly {
            ptr := add(mload(0x40), 128)
            mstore(0x40, ptr)
            let end := ptr
            for {
                let temp := value
                ptr := sub(ptr, 1)
                mstore8(ptr, add(48, mod(temp, 10)))
                temp := div(temp, 10)
            } temp {
                temp := div(temp, 10)
            } {
                ptr := sub(ptr, 1)
                mstore8(ptr, add(48, mod(temp, 10)))
            }
            let length := sub(end, ptr)
            ptr := sub(ptr, 32)
            mstore(ptr, length)
        }
    }
}

pragma solidity ^0.8.13;

contract MagicBottle is Ownable, ERC721A {
    uint256 public maxSupply = 4888;
    uint256 public maxFreeSupply = 500;
    uint256 public maxPerTxDuringMint = 5;
    uint256 public maxPerAddressDuringMint = 5;
    uint256 public maxPerAddressDuringFreeMint = 1;
    uint256 public price = 0.005 ether;
    bool public saleIsActive = false;
    bool public revealed = true;

    address internal constant TEAM_ADDRESS =
        0xd1D4350d243c6582fd04D67bFE5976712E83766E;
    string public baseURI = "";
    string public constant baseExtension = ".json";
    string public hiddenMetadataUri;
    mapping(address => uint256) public freeMintedAmount;
    mapping(address => uint256) public mintedAmount;

    constructor() ERC721A("MagicBottle", "MB") {
        setHiddenMetadataUri("no");
    }

    modifier mintCompliance() {
        require(saleIsActive, "Sale is not active yet.");
        require(tx.origin == msg.sender, "Wrong Caller");
        _;
    }

    function mint(uint256 _quantity) external payable mintCompliance {
        require(
            maxSupply >= totalSupply() + _quantity,
            "GDZ: Exceeds max supply."
        );

        uint256 _freeMintedAmount = freeMintedAmount[msg.sender];

        if (
            _freeMintedAmount < maxPerAddressDuringFreeMint &&
            (maxFreeSupply >=
                totalSupply() + maxPerAddressDuringFreeMint - _freeMintedAmount)
        ) {
            if (
                _quantity >= (maxPerAddressDuringFreeMint - _freeMintedAmount)
            ) {
                freeMintedAmount[msg.sender] = maxPerAddressDuringFreeMint;
            } else {
                freeMintedAmount[msg.sender] = _freeMintedAmount + _quantity;
            }
            require(
                msg.value >=
                    price *
                        (_quantity -
                            (maxPerAddressDuringFreeMint - _freeMintedAmount)),
                "GDZ: Insufficient Fund Has Free Mint."
            );
        } else {
            require(
                msg.value >= price * _quantity,
                "GDZ: Insufficient Fund Not Free."
            );
        }

        uint256 _mintedAmount = mintedAmount[msg.sender];

        require(
            _mintedAmount + _quantity <= maxPerAddressDuringMint,
            "GDZ: Exceeds max mints per address!"
        );
        require(
            _quantity > 0 && _quantity <= maxPerTxDuringMint,
            "Invalid mint amount."
        );
        mintedAmount[msg.sender] = _mintedAmount + _quantity;
        _safeMint(msg.sender, _quantity);
    }

    function setPrice(uint256 _price) external onlyOwner {
        price = _price;
    }

    function setMaxPerTx(uint256 _amount) external onlyOwner {
        maxPerTxDuringMint = _amount;
    }

    function setMaxPerAddress(uint256 _amount) external onlyOwner {
        maxPerAddressDuringMint = _amount;
    }

    function setMaxFreePerAddress(uint256 _amount) external onlyOwner {
        maxPerAddressDuringFreeMint = _amount;
    }

    function flipSale() public onlyOwner {
        saleIsActive = !saleIsActive;
    }

    function setMaxSupply(uint256 newSupply) public onlyOwner {
        maxSupply = newSupply;
    }

    function cutMaxSupply(uint256 _amount) public onlyOwner {
        require(
            maxSupply - _amount >= totalSupply(),
            "Supply cannot fall below minted tokens."
        );
        maxSupply -= _amount;
    }

    function setRevealed(bool _state) public onlyOwner {
        revealed = _state;
    }

    function setBaseURI(string memory baseURI_) external onlyOwner {
        baseURI = baseURI_;
    }

    function setHiddenMetadataUri(string memory _hiddenMetadataUri)
        public
        onlyOwner
    {
        hiddenMetadataUri = _hiddenMetadataUri;
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return baseURI;
    }

    function tokenURI(uint256 _tokenId)
        public
        view
        override
        returns (string memory)
    {
        require(_exists(_tokenId), "Token does not exist.");
        if (revealed == false) {
            return hiddenMetadataUri;
        }
        return
            bytes(baseURI).length > 0
                ? string(
                    abi.encodePacked(
                        baseURI,
                        Strings.toString(_tokenId),
                        baseExtension
                    )
                )
                : "";
    }

    function withdrawBalance() external payable onlyOwner {
        (bool success, ) = payable(TEAM_ADDRESS).call{
            value: address(this).balance
        }("");
        require(success, "transfer failed.");
    }
}