// SPDX-License-Identifier: MIT
pragma solidity >=0.4.22 <0.9.0;

import "./BaseContract.sol";
import "./Bank.sol";

contract ATM is BaseContract{
	Bank public bank;
	event Withdraw(address from, uint amount, uint balance );
	constructor(address bank_addr) {
		bank = Bank(payable(bank_addr));
	}

	function withdraw(uint amount) public {
		require(amount<=0.1 ether, "You cannot withdraw more than 0.1 ether");
		if(address(this).balance <= 0.1 ether) {
			bank.withdraw(0.5 ether);
		}
		payable(msg.sender).transfer(amount);
		emit Withdraw(msg.sender, amount, address(this).balance);
		if(address(this).balance <= 0.1 ether) {
			bank.withdraw(0.5 ether);
		}
	}
}