Reveries of Ymatar

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "https://github.com/nibbstack/erc721/src/contracts/tokens/nf-token-metadata.sol";
import "https://github.com/nibbstack/erc721/src/contracts/tokens/nf-token-enumerable.sol";
import "https://github.com/nibbstack/erc721/src/contracts/ownership/ownable.sol";
import "Whitelist.sol";


/**
 * @dev This is an example contract implementation of NFToken with metadata extension.
 */
contract ProjectFlute is
  NFTokenEnumerable,
  NFTokenMetadata,
  ControlledAccess
{
    address creatorAccount;

  /**
   * @dev Contract constructor. Sets metadata extension `name` and `symbol`.
   */
  constructor()
  {
    nftName = "Reveries of Ymatar";
    nftSymbol = "RoY";
    creatorAccount = 0x0786B0220Eab9e7fC5A4d5b6C65BE230858b77b4;
  }

  uint256 public constant PRICE = 0.02 ether;
  /**
   * @dev Mints a new NFT.
   * @param _to The address that will own the minted NFT.
   * @param _tokenId of the NFT to be minted by the msg.sender.
   * @param _uri String representing RFC 3986 URI.
   */
  function mint(
    address _to,
    uint256 _tokenId,
    string calldata _uri,
    uint8 _v, 
    bytes32 _r, 
    bytes32 _s
  )
        onlyValidAccess(_v,_r,_s, _tokenId)
        public payable
    {
        require(msg.value >= PRICE, "Price not 0.2 eth");
        super._mint(_to, _tokenId);
        super._setTokenUri(_tokenId, _uri);
    }
    
    function withdrawMoney() public {
        require(creatorAccount == msg.sender);
        address payable to = payable(msg.sender);
        to.transfer(address(this).balance);
    }

  /**
   * @dev Removes a NFT from owner.
   * @param _tokenId Which NFT we want to remove.
   */
  function burn(
    uint256 _tokenId
  )
    external
    onlyOwner
  {
    super._burn(_tokenId);
  }

  /**
   * @dev Mints a new NFT.
   * @notice This is an internal function which should be called from user-implemented external
   * mint function. Its purpose is to show and properly initialize data structures when using this
   * implementation.
   * @param _to The address that will own the minted NFT.
   * @param _tokenId of the NFT to be minted by the msg.sender.
   */
  function _mint(
    address _to,
    uint256 _tokenId
  )
    internal
    override(NFToken, NFTokenEnumerable)
    virtual
  {
    NFTokenEnumerable._mint(_to, _tokenId);
  }

  /**
   * @dev Burns a NFT.
   * @notice This is an internal function which should be called from user-implemented external
   * burn function. Its purpose is to show and properly initialize data structures when using this
   * implementation. Also, note that this burn implementation allows the minter to re-mint a burned
   * NFT.
   * @param _tokenId ID of the NFT to be burned.
   */
  function _burn(
    uint256 _tokenId
  )
    internal
    override(NFTokenMetadata, NFTokenEnumerable)
    virtual
  {
    NFTokenEnumerable._burn(_tokenId);
    if (bytes(idToUri[_tokenId]).length != 0)
    {
      delete idToUri[_tokenId];
    }
  }

  /**
   * @notice Use and override this function with caution. Wrong usage can have serious consequences.
   * @dev Removes a NFT from an address.
   * @param _from Address from wich we want to remove the NFT.
   * @param _tokenId Which NFT we want to remove.
   */
  function _removeNFToken(
    address _from,
    uint256 _tokenId
  )
    internal
    override(NFToken, NFTokenEnumerable)
  {
    NFTokenEnumerable._removeNFToken(_from, _tokenId);
  }

  /**
   * @notice Use and override this function with caution. Wrong usage can have serious consequences.
   * @dev Assigns a new NFT to an address.
   * @param _to Address to wich we want to add the NFT.
   * @param _tokenId Which NFT we want to add.
   */
  function _addNFToken(
    address _to,
    uint256 _tokenId
  )
    internal
    override(NFToken, NFTokenEnumerable)
  {
    NFTokenEnumerable._addNFToken(_to, _tokenId);
  }

   /**
   * @dev Helper function that gets NFT count of owner. This is needed for overriding in enumerable
   * extension to remove double storage(gas optimization) of owner nft count.
   * @param _owner Address for whom to query the count.
   * @return Number of _owner NFTs.
   */
  function _getOwnerNFTCount(
    address _owner
  )
    internal
    override(NFToken, NFTokenEnumerable)
    view
    returns (uint256)
  {
    return NFTokenEnumerable._getOwnerNFTCount(_owner);
  }

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "https://github.com/nibbstack/erc721/src/contracts/ownership/ownable.sol";

contract ControlledAccess is Ownable {
    
    
   /* 
    * @dev Requires msg.sender to have valid access message.
    * @param _v ECDSA signature parameter v.
    * @param _r ECDSA signature parameters r.
    * @param _s ECDSA signature parameters s.
    */
    modifier onlyValidAccess(uint8 _v, bytes32 _r, bytes32 _s, uint256 tokenId) 
    {
        require( isValidAccessMessage(msg.sender,_v,_r,_s, tokenId));
        _;
    }
 
    /* 
    * @dev Verifies if message was signed by owner to give access to _add for this contract.
    *      Assumes Geth signature prefix.
    * @param _add Address of agent with access
    * @param _v ECDSA signature parameter v.
    * @param _r ECDSA signature parameters r.
    * @param _s ECDSA signature parameters s.
    * @return Validity of access message for a given address.
    */
    function isValidAccessMessage(
        address _add,
        uint8 _v, 
        bytes32 _r, 
        bytes32 _s,
        uint256 tokenId) 
        view public returns (bool)
    {
        bytes32 hash = keccak256(abi.encodePacked(address(this), tokenId, _add));
        return owner == ecrecover(
            keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)),
            _v,
            _r,
            _s
        );
    }
}

{
  "compilationTarget": {
    "ProjectFlute.sol": "ProjectFlute"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}