43 lines
994 B
Solidity
43 lines
994 B
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity >=0.4.22 <0.9.0;
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import "./BaseContract.sol";
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contract Bank is BaseContract{
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address[] public atms;
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event NoMoney(address from, uint amount, uint balance);
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event Withdraw(address from, uint amount, uint balance);
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event AddATM(address atm);
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constructor() {}
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modifier onlyATM() {
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bool found = false;
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for(uint i=0; i<atms.length; i++) {
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if(msg.sender == atms[i]){
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found = true;
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break;
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}
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}
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require(found, "You're not our ATM.");
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_;
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}
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function getATMs() public view returns (address[] memory){
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return atms;
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}
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function addATM(address atm) public onlyOwner {
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atms.push(atm);
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emit AddATM(atm);
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}
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function withdraw(uint amount) public onlyATM {
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if(amount>address(this).balance){
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emit NoMoney(msg.sender, amount, address(this).balance);
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revert("Bank doesn't have enough money to withdraw");
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}
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payable(msg.sender).transfer(amount);
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emit Withdraw(msg.sender, amount, address(this).balance);
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}
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}
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