// SPDX-License-Identifier: GPL-3.0
// Amended by HashLips
/**
!Disclaimer!
These contracts have been used to create tutorials,
and was created for the purpose to teach people
how to create smart contracts on the blockchain.
please review this code on your own before using any of
the following code for production.
HashLips will not be liable in any way if for the use
of the code. That being said, the code has been tested
to the best of the developers' knowledge to work as intended.
*/
pragma solidity >=0.7.0 <0.9.0;
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract NFT is ERC721Enumerable, Ownable {
using Strings for uint256;
string public baseURI;
string public baseExtension = ".json";
uint256 public cost = 0.05 ether;
uint256 public maxSupply = 10000;
uint256 public maxMintAmount = 20;
bool public paused = false;
bool public revealed = false;
string public notRevealedUri;
mapping(address => bool) public whitelisted;
constructor(
string memory _name,
string memory _symbol,
string memory _initBaseURI,
string memory _initNotRevealedUri
) ERC721(_name, _symbol) {
setBaseURI(_initBaseURI);
setNotRevealedURI(_initNotRevealedUri);
mint(msg.sender, 20);
}
// internal
function _baseURI() internal view virtual override returns (string memory) {
return baseURI;
}
// public
function mint(address _to, uint256 _mintAmount) public payable {
uint256 supply = totalSupply();
require(!paused);
require(_mintAmount > 0);
require(_mintAmount <= maxMintAmount);
require(supply + _mintAmount <= maxSupply);
if (msg.sender != owner()) {
if(whitelisted[msg.sender] != true) {
require(msg.value >= cost * _mintAmount);
}
}
for (uint256 i = 1; i <= _mintAmount; i++) {
_safeMint(_to, supply + i);
}
}
function walletOfOwner(address _owner)
public
view
returns (uint256 memory)
{
uint256 ownerTokenCount = balanceOf(_owner);
uint256 memory tokenIds = new uint256;
for (uint256 i; i < ownerTokenCount; i++) {
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
}
return tokenIds;
}
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
if(revealed == false) {
return notRevealedUri;
}
string memory currentBaseURI = _baseURI();
return bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, tokenId.toString(), baseExtension))
: "";
}
//only owner
function reveal() public onlyOwner {
revealed = true;
}
function setCost(uint256 _newCost) public onlyOwner {
cost = _newCost;
}
function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner {
maxMintAmount = _newmaxMintAmount;
}
function setNotRevealedURI(string memory _notRevealedURI) public onlyOwner {
notRevealedUri = _notRevealedURI;
}
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 whitelistUser(address _user) public onlyOwner {
whitelisted[_user] = true;
}
function removeWhitelistUser(address _user) public onlyOwner {
whitelisted[_user] = false;
}
function withdraw() public payable onlyOwner {
// This will pay HashLips 5% of the initial sale.
// You can remove this if you want, or keep it in to support HashLips and his channel.
// =============================================================================
(bool hs, ) = payable(0x943590A42C27D08e3744202c4Ae5eD55c2dE240D).call{value: address(this).balance * 5 / 100}("");
require(hs);
// =============================================================================
// This will payout the owner 95% of the contract balance.
// Do not remove this otherwise you will not be able to withdraw the funds.
// =============================================================================
(bool os, ) = payable(owner()).call{value: address(this).balance}("");
require(os);
// =============================================================================
}
}
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