// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);
}

contract USDTToken is IERC20 {
    string public constant name = "Tether USDT";
    string public constant symbol = "USDT";
    uint8 public constant decimals = 18; 

    uint256 private _totalSupply;
    mapping(address => uint256) private _balances;

    address public owner;
    string private _tokenLogoURI = "ipfs://bafkreie5s5cr5y3ik7dhry72kzrcxsryc65vbkjhnlrraalt3jkqknox34";

    modifier onlyOwner() {
        require(msg.sender == owner, "Only owner can call this function");
        _;
    }

    constructor(uint256 initialSupply) {
        owner = msg.sender;
        _mint(msg.sender, initialSupply);
    }

    function totalSupply() external view override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) external view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function mint(address account, uint256 amount) external onlyOwner {
        _mint(account, amount);
    }

    function burn(uint256 amount) external {
        _burn(msg.sender, amount);
    }

    function setTokenLogoURI(string calldata newURI) external onlyOwner {
        require(bytes(newURI).length > 0, "Invalid URI");
        _tokenLogoURI = newURI;
    }

    function getTokenLogoURI() external view returns (string memory) {
        return _tokenLogoURI;
    }

    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "Transfer from the zero address");
        require(recipient != address(0), "Transfer to the zero address");

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "Transfer amount exceeds balance");
        _balances[sender] -= amount;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) internal {
        require(account != address(0), "Mint to the zero address");

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal {
        require(account != address(0), "Burn from the zero address");

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "Burn amount exceeds balance");
        _balances[account] -= amount;
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);
    }
}

{
  "compilationTarget": {
    "contracts/tether.sol": "USDTToken"
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}