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contracts...FundMe.sol

// SPDX-License-Identifer: MIT

pragma solidity ^0.8.4;

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "./PriceConverter.sol";

error noOwner();

contract FundMe{
    using PriceConverter for uint256;
    mapping(address=>uint256) public addressFundedAmount;
    address [] investorsAddress;
    address public immutable i_owner;
    uint256 public minUSD;
    // uint256 public constant MIN_USD=50*10e18 // for a constant variable

    constructor(){
        i_owner=msg.sender;
    }

    function fund() public payable{
        require(msg.value.convert()>= minUSD,string(abi.encodePacked("You need to get minimum amount of ",minUSD," USD")));
        addressFundedAmount[msg.sender]+= msg.value;
        investorsAddress.push(msg.sender);
    }

    modifier onlyOwner{
        require(msg.sender==i_owner,"Only owners");
        _;
    }

    modifier admin(){
        if(msg.sender!=i_owner){
            revert noOwner();
        }
            _;
    }

    function withdraw() payable onlyOwner public {
        resetBalances();
        (bool callSuccess,)=payable(msg.sender).call{value:address(this).balance}("");
        require(callSuccess, "Couldn't send money");
    }

     function setMinUSD(uint256 _minUSDValue) onlyOwner public {
        minUSD=_minUSDValue;
    }


    receive() external payable{
        fund();
    }

    fallback() external payable{
        fund();
    }
//private
    function resetBalances() private {
        for (uint i=0; i< investorsAddress.length ; i++){
            delete addressFundedAmount[investorsAddress[i]];
            delete investorsAddress[i];
        }
    }

   

    

}