Solidity AllorNothing

AllorNothing.sol

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

contract AllorNothing {
    address public owner;
    mapping (address => uint256) public balances;
    event Deposit(address indexed depositor, uint256 amount);
    event Withdraw(address indexed withdrawer, uint256 amount);
    error ZeroBalance();
    constructor() {
        owner = msg.sender;
        balances[msg.sender] = 0;
    }

    function checkBal(address x) public view returns (uint256){
        return balances[x];
    }
    function deposit() public payable {
        require(msg.value >0, "Amount should be more than 0");
        balances[msg.sender]+= msg.value;
        emit Deposit(msg.sender, msg.value);
    }
    function withdraw() public  {
        uint256 amount = balances[msg.sender];
        require(amount >0, "Cannot withdraw, Zero Balance");
        balances[msg.sender] =0;
        (bool success, ) = msg.sender.call{value:amount}("");
        require(success, "Sorry amount could not be withdrawn");
        emit Withdraw(msg.sender, amount);
    }   
}
//End