contract Dosdles is ERC721Tradable, IERC2981 {
    using Strings for uint256;
    string public baseURI;
    string public notRevealedUri;
    uint256 public cost = 0.00 ether;
    uint256 public maxSupply = 2000;
    uint256 public maxMintAmount = 4;
    uint256 public nftPerAddressLimit = 25;
    bool public paused = false;
    bool public revealed = false;
    bool public onlyWhitelisted = true;
    address[] public whitelistedAddresses;
    mapping(address => uint256) public addressMintedBalance;

    // ======== Royalties =========
    address public royaltyAddress;
    uint256 public royaltyPercent;

    constructor(
        string memory _name,
        string memory _symbol,
        string memory _initBaseURI,
        string memory _initNotRevealedUri,
        address _proxyRegistryAddress

    ) ERC721Tradable(_name, _symbol, _proxyRegistryAddress) {
        setBaseURI(_initBaseURI);
        setNotRevealedURI(_initNotRevealedUri);
        royaltyAddress = owner();
        royaltyPercent = 5;
    }

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

    function baseTokenURI() override public pure returns (string memory) {
        return "";
    }

    // ======== Minting =========
    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]++;
            _mintTo(msg.sender);
        }
    }

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

    function getWhitelist() public view returns (address  [] memory){
        return whitelistedAddresses;
    }

    function deleteWhitelistUsers() public onlyOwner {
        delete whitelistedAddresses;
    }

    function totalSupply() public view returns (uint256) {
        return currentTokenId;
    }

    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 setNftPerAddressLimit(uint256 _limit) public onlyOwner {
        nftPerAddressLimit = _limit;
    }

    function setCost(uint256 _newCost) public onlyOwner {
        cost = _newCost;
    }

    function setMaxMintAmount(uint256 _newMaxMintAmount) public onlyOwner {
        maxMintAmount = _newMaxMintAmount;
    }

    function setMaxSupply(uint256 _newMaxSupply) public onlyOwner {
        maxSupply = _newMaxSupply;
    }

    function setBaseURI(string memory _newBaseURI) public onlyOwner {
        baseURI = _newBaseURI;
    }

    function setBaseExtension(string memory _newBaseExtension) public onlyOwner {
        baseExtension = _newBaseExtension;
    }

    function setNotRevealedURI(string memory _notRevealedURI) public onlyOwner {
        notRevealedUri = _notRevealedURI;
    }

    function pause(bool _state) public onlyOwner {
        paused = _state;
    }

    function setOnlyWhitelisted(bool _state) public onlyOwner {
        onlyWhitelisted = _state;
    }

    function whitelistUsers(address[] calldata _users) public onlyOwner {
        delete whitelistedAddresses;
        whitelistedAddresses = _users;
    }

    // ======== Royalties =========
    function setRoyaltyReceiver(address royaltyReceiver) public onlyOwner {
        royaltyAddress = royaltyReceiver;
    }

    function setRoyaltyPercentage(uint256 royaltyPercentage) public onlyOwner {
        royaltyPercent = royaltyPercentage;
    }

    function royaltyInfo(uint256 tokenId, uint256 salePrice) external view override returns (address receiver, uint256 royaltyAmount) {
        require(_exists(tokenId), "Non-existent token");
        return (royaltyAddress, salePrice * royaltyPercent / 100);
    }

    function supportsInterface(bytes4 interfaceId) public view override(ERC721, IERC165) returns (bool) {
        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
    }

    // ======== Withdraw =========
    function withdraw() public onlyOwner {
        (bool success,) = owner().call{value : address(this).balance}("");
        require(success, "Withdraw failed");
    }
}
function setRoyaltyReceiver(address royaltyReceiver) public onlyOwner {
    royaltyAddress = royaltyReceiver;
}

// ======== Royalties =========