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Homework 1 Donate.txt

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+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity ^0.8.11;
+
+// visibility related kérdések:
+// az admin private de mégis az external functionnel le lehet kérni?
+// az amountearned private de internal functionnel lehet kérni?
+
+
+//egyéb kérdés:
+// van e olyan hogy listában (nem csak egyet) mutatja azokat akik már donate-oltak? Pl. address-t - array
+// hogy tudom egymásba foglalni a show the address és a show the message functionoket?
+
+
+contract Donatetocontract{
+    uint256 public nrofdonate;
+    uint256 public minmoney;
+    uint256 public amountwithdrawed;
+    uint256 public nrofwithdraw;
+    string internal message;
+    mapping (uint256 => address) internal showaddress;
+    mapping (uint256 => string) internal showmessage;
+    uint256 private amountearned;
+    address private admin;
+    uint256 private monthlycosts;
+
+    
+    constructor() {
+        nrofdonate = 0;
+        amountearned = 0;
+        minmoney = 10;
+        amountwithdrawed = 0;
+        nrofwithdraw =0;
+        admin = 0x9A0e3A6Dfc8E3C9Ba53d59C120898883d0Cee732;
+        monthlycosts = 30000;
+       
+
+    }
+
+    function senddonation(uint256 _money, string memory _message) public payable{
+        require(_money >= minmoney, 'Please donate more than one penny!');
+        nrofdonate = nrofdonate + 1;
+        amountearned = amountearned + _money;
+        showaddress[nrofdonate] = msg.sender;
+        message = _message;
+        showmessage[nrofdonate] = message;
+
+    }
+
+
+    function adminWithdraw() internal returns (bool) {
+        require(msg.sender == admin, 'You are not the central admin!');
+        (bool sent,) = msg.sender.call{value: address(this).balance}("");
+        return sent;
+        
+    }
+
+    function _showtheaddress(uint256 _sendernumber) private view returns (address) {
+        return showaddress[_sendernumber];
+    }
+
+    function showtheaddress(uint256 _sendernumber) public view returns (address) {
+        return showaddress[_sendernumber];
+    }
+//-----------------------------------------------------------------------------------------
+
+     function _showthemessage(uint256 _sendernumber) internal view returns (string memory) {
+     return showmessage[_sendernumber];
+
+     }
+
+    function showthemessage(uint256 _sendernumber) public view returns (string memory) {
+        return showmessage[_sendernumber];
+    }
+
+//-----------------------------------------------------------------------------------------
+
+
+    function showtheadmin () external view returns (address) {
+        return admin;
+
+    }
+
+//-----------------------------------------------------------------------------------------
+    function donateearned () public view returns (uint256) {
+        return amountearned;
+    }
+
+
+    function donatecount () public view returns (uint256) {
+        return nrofdonate;
+    }
+
+
+    function _monthlyresults () private view returns(uint256) {
+       return amountearned - monthlycosts;
+    }
+
+
+    function _donateearned () private view returns (uint256) {
+        return amountearned;
+    }
+
+
+    function szam () public pure returns (uint256) {
+     return 163;
+    
+    }
+    
+
+   //function showbalance() public view returns (address) {
+        //return address(this).balance;
+     //}
+
+
+}