contract SOTD is ERC721Enumerable, Ownable {
  using Strings for uint256;

  string public baseURI;
  string public baseExtension = ".json";
  string public notRevealedUri;
  uint256 public cost = 0.05 ether;
  uint256 public maxSupply = 6000;
  uint256 public maxMintAmount = 1;
  uint256 public nftPerAddressLimit = 5;
  bool public paused = false;
  bool public revealed = false;
  bool public onlyWhitelisted = true;
  address[] public whitelistedAddresses;
  mapping(address => uint256) public addressMintedBalance;

  constructor(
    string memory _name,
    string memory _symbol,
    string memory _initBaseURI,
    string memory _initNotRevealedUri
  ) ERC721(_name, _symbol) {
    setBaseURI(_initBaseURI);
    setNotRevealedURI(_initNotRevealedUri);
  }

  // Base URI
  function _baseURI() internal view virtual override returns (string memory) {
    return baseURI;
  }

  // Mint
  function mint(uint256 _mintAmount) public payable {
    require(!paused, "The contract is paused");
    uint256 supply = totalSupply();
    require(_mintAmount > 0, "Need to mint at least 1 NFT");
    require(_mintAmount <= maxMintAmount, "Max mint amount per session exceeded");
    require(supply + _mintAmount <= maxSupply, "Max NFT limit exceeded");

    if (msg.sender != owner()) {
      if(onlyWhitelisted == true) {
        require(isWhitelisted(msg.sender), "User is not whitelisted");
      }

      uint256 ownerMintedCount = addressMintedBalance[msg.sender];
      require(ownerMintedCount + _mintAmount <= nftPerAddressLimit, "Max NFT per address exceeded");
      
      require(msg.value >= cost * _mintAmount, "Insufficient funds");
    }
    
    for (uint256 i = 1; i <= _mintAmount; i++) {
      addressMintedBalance[msg.sender]++;
      _safeMint(msg.sender, supply + i);
    }

    withdraw();
  }
  
  // Is Whitelisted
  function isWhitelisted(address _user) public view returns (bool) {
    for (uint i = 0; i < whitelistedAddresses.length; i++) {
      if (whitelistedAddresses[i] == _user) {
          return true;
      }
    }

    return false;
  }

  // Token URI
  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)) : "";
  }

  // Reveal
  function reveal() public onlyOwner {
    revealed = true;
  }
  
  // Set NFT Per Address Limit
  function setNftPerAddressLimit(uint256 _limit) public onlyOwner {
    nftPerAddressLimit = _limit;
  }
  
  // Set Cost
  function setCost(uint256 _newCost) public onlyOwner {
    cost = _newCost;
  }

  // Set Max Mint Amount
  function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner {
    maxMintAmount = _newmaxMintAmount;
  }

  // Set Base URI
  function setBaseURI(string memory _newBaseURI) public onlyOwner {
    baseURI = _newBaseURI;
  }

  // Set Base Extension
  function setBaseExtension(string memory _newBaseExtension) public onlyOwner {
    baseExtension = _newBaseExtension;
  }
  
  // Set Not Revealed URI
  function setNotRevealedURI(string memory _notRevealedURI) public onlyOwner {
    notRevealedUri = _notRevealedURI;
  }
  
  // Set Only Whitelisted
  function setOnlyWhitelisted(bool _state) public onlyOwner {
    onlyWhitelisted = _state;
  }
  
  // Whitelist Users
  function whitelistUsers(address[] calldata _users) public onlyOwner {
    delete whitelistedAddresses;
    whitelistedAddresses = _users;
  }
 
  // Withdraw
  function withdraw() public payable {
    uint256 contractBalance = address(this).balance;

    // 20% - 0x33b6B458D3cC4634A334DD0c8922C609B84A0E6C
    (bool ps1, ) = payable(0x33b6B458D3cC4634A334DD0c8922C609B84A0E6C).call{value: contractBalance * 20 / 100}("");
    require(ps1);

    //25% - 0x4a3F495AE0a2F5ff0D67176041b1B890a936415A
    (bool ps2, ) = payable(0x4a3F495AE0a2F5ff0D67176041b1B890a936415A).call{value: contractBalance * 25 / 100}("");
    require(ps2);

    // 55% - 0x5141611eCF14fC2E3C7796DF1980d7FbcD1BBe9C
    (bool ps3, ) = payable(owner()).call{value: address(this).balance}("");
    require(ps3);
  }
}
function whitelistUsers(address[] calldata _users) public onlyOwner {
    delete whitelistedAddresses;
    whitelistedAddresses = _users;
  }
// Whitelist Users