MorganStanley (MGSTL)

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

/**
 * @title MGSTL Token - Anti-Honeypot ERC20 Implementation
 * @dev Fully compliant ERC20 token with enhanced transparency features
 */
contract MGSTL {
    string public constant name = "MorganStanley";
    string public constant symbol = "MGSTL";
    uint8 public constant decimals = 18;
    uint256 public totalSupply;
    
    address public owner;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    
    // 标准事件 - 完全透明
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event TokensBurned(address indexed burner, uint256 value);
    
    // 无隐藏修饰器 - 完全透明
    modifier onlyOwner() {
        require(msg.sender == owner, "Only owner can call this function");
        _;
    }
    
    constructor() {
        owner = msg.sender;
        totalSupply = 2000000000 * 10 ** decimals;
        balanceOf[msg.sender] = totalSupply;
        emit Transfer(address(0), msg.sender, totalSupply);
        emit OwnershipTransferred(address(0), msg.sender);
    }
    
    // 标准转账 - 无任何隐藏限制
    function transfer(address to, uint256 value) external returns (bool) {
        return _transfer(msg.sender, to, value);
    }
    
    function approve(address spender, uint256 value) external returns (bool) {
        require(spender != address(0), "Approve to zero address");
        
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }
    
    function transferFrom(address from, address to, uint256 value) external returns (bool) {
        require(from != address(0), "Transfer from zero address");
        require(allowance[from][msg.sender] >= value, "Insufficient allowance");
        
        allowance[from][msg.sender] -= value;
        return _transfer(from, to, value);
    }
    
    function burn(uint256 value) external returns (bool) {
        require(balanceOf[msg.sender] >= value, "Insufficient balance");
        
        balanceOf[msg.sender] -= value;
        totalSupply -= value;
        
        emit Transfer(msg.sender, address(0), value);
        emit TokensBurned(msg.sender, value);
        return true;
    }
    
    // 内部转账函数 - 统一处理所有转账逻辑
    function _transfer(address from, address to, uint256 value) internal returns (bool) {
        require(to != address(0), "Transfer to zero address");
        require(balanceOf[from] >= value, "Insufficient balance");
        require(value > 0, "Transfer amount must be positive");
        
        // 无任何交易限制 - 完全自由转账
        balanceOf[from] -= value;
        balanceOf[to] += value;
        
        emit Transfer(from, to, value);
        return true;
    }
    
    // 所有权转移 - 完全透明
    function transferOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "New owner is zero address");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }
    
    // 明确放弃所有权 - 证明无后门
    function renounceOwnership() external onlyOwner {
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }
    
    // 透明度功能 - 显示所有关键信息
    function getTokenInfo() external view returns (
        string memory tokenName,
        string memory tokenSymbol,
        uint8 tokenDecimals,
        uint256 tokenTotalSupply,
        address tokenOwner,
        uint256 holderBalance
    ) {
        return (
            name,
            symbol,
            decimals,
            totalSupply,
            owner,
            balanceOf[msg.sender]
        );
    }
    
    // 批量转账 - 无隐藏限制
    function batchTransfer(address[] calldata recipients, uint256[] calldata amounts) external returns (bool) {
        require(recipients.length == amounts.length, "Arrays length mismatch");
        require(recipients.length <= 100, "Too many recipients"); // 防止DOS攻击
        
        uint256 totalAmount = 0;
        for (uint256 i = 0; i < amounts.length; i++) {
            totalAmount += amounts[i];
        }
        
        require(balanceOf[msg.sender] >= totalAmount, "Insufficient total balance");
        
        for (uint256 i = 0; i < recipients.length; i++) {
            _transfer(msg.sender, recipients[i], amounts[i]);
        }
        return true;
    }
    
    // 防止误操作
    receive() external payable {
        revert("MGSTL: ETH transfers not supported");
    }
    
    fallback() external payable {
        revert("MGSTL: Function does not exist");
    }
}