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August 24, 2023 09:07
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// SPDX-License-Identifier: MIT | |
pragma solidity ^0.8.9; | |
import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; | |
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; | |
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; | |
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; | |
import "@openzeppelin/contracts/access/Ownable.sol"; | |
import "@openzeppelin/contracts/utils/Counters.sol"; | |
contract XmasToken is | |
ERC721, | |
ERC721Enumerable, | |
ERC721URIStorage, | |
ERC721Burnable, | |
Ownable | |
{ | |
using Counters for Counters.Counter; | |
Counters.Counter private _tokenIdCounter; | |
// Mapping from token ID to creator's address | |
mapping(uint256 => address) private _tokenCreators; | |
constructor() ERC721("XmasToken", "XMAS") {} | |
function safeMint(address to, string memory uri, address tokenCreator) public onlyOwner { | |
uint256 tokenId = _tokenIdCounter.current(); | |
_tokenIdCounter.increment(); | |
_safeMint(to, tokenId); | |
_setTokenURI(tokenId, uri); | |
_tokenCreators[tokenId] = tokenCreator; | |
} | |
function getCreatorOfToken(uint256 tokenId) public view returns (address) { | |
return _tokenCreators[tokenId]; | |
} | |
// The following functions are overrides required by Solidity. | |
function _beforeTokenTransfer( | |
address from, | |
address to, | |
uint256 tokenId, | |
uint256 batchSize | |
) internal override(ERC721, ERC721Enumerable) { | |
super._beforeTokenTransfer(from, to, tokenId, batchSize); | |
} | |
function _burn(uint256 tokenId) | |
internal | |
override(ERC721, ERC721URIStorage) | |
{ | |
super._burn(tokenId); | |
} | |
function tokenURI(uint256 tokenId) | |
public | |
view | |
override(ERC721, ERC721URIStorage) | |
returns (string memory) | |
{ | |
return super.tokenURI(tokenId); | |
} | |
function supportsInterface(bytes4 interfaceId) | |
public | |
view | |
override(ERC721, ERC721Enumerable, ERC721URIStorage) | |
returns (bool) | |
{ | |
return super.supportsInterface(interfaceId); | |
} | |
function mintAndAirdrop(address[] memory recipients, string[] memory uris, address[] memory tokenCreator) public onlyOwner { | |
require(recipients.length == uris.length, "Mismatched arrays length"); | |
for (uint256 i = 0; i < recipients.length; i++) { | |
safeMint(recipients[i], uris[i], tokenCreator[i]); | |
} | |
} | |
} |
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