BankContract.sol

//SPDX-License-Identifier: MIT 

pragma solidity ^0.8.0;

//i created a smart contract that allows a user to deposit, withdraw and save ETH!!

contract SmartSHop{
    //we mapped the address of the caller balance in the contract
    mapping(address => uint) public balances;

// whatever the user deposit is added to msg.value of the sender address we mapped above
    function deposit() public payable{
        balances[msg.sender] += msg.value; 
    }
    
//we create the fucntion of witdraw 
    function withdraw(uint _amount) public{
        //we create a require arg to make sure the balance of the sender is >= _amount if not ERR
        require(balances[msg.sender]>= _amount, "Not enough ether");
        //if the amount is availabe we subtract it from the sender 
        balances[msg.sender] -= _amount;
        //True bool is called to confirm the amount
        (bool sent,) = msg.sender.call{value: _amount}("Sent");
        require(sent, "failed to send ETH");

        
    }

    function getBal() public view returns(uint){
        return address(this).balance;
    }




}