simple smart contract

votes.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts@4.7.3/access/AccessControl.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract ProjectTest is AccessControl {
    using Counters for Counters.Counter;

    bytes32 public constant ADMIN_ROLE = keccak256("ADMIN");
    bytes32 public constant USER_ROLE = keccak256("USER");
    bytes32 public constant USER_WALLET = keccak256("wallet");


    Counters.Counter _projectIds;

    struct Project {
        uint256 id;
        address creator;
        string name;
        bool isActive;
        string description;
    }

    struct Wallet {
        address receiver;
    }

     struct Config {
        uint256 amount;
    }

    uint256 balanceCheck;
    address addressCheck;
    address msgSender;

    uint256 public price;
    Wallet public wallet;
    Config public config;
    // Project public project;

    mapping(uint256 => Project) public projects;


    constructor(address receiver, uint256 amount) {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        grantRole(ADMIN_ROLE, msg.sender);
        grantRole(USER_WALLET, receiver);
        wallet.receiver = payable(receiver);
        config.amount = amount;
    }

    event Submitted(uint256 indexed indexedProjectId, uint256 projectId, address indexed creator, uint256 amount);

    function submitProject(string memory name) public payable {
        // balanceCheck = address(this).balance;
        require(config.amount == msg.value , "The price is not valid");

        balanceCheck = msg.value;
        addressCheck = msg.sender;
        msgSender = _msgSender();
        // _msgSender() === msg.sender;
        uint256 latestId = _projectIds.current();
        _projectIds.increment();
        projects[latestId] = Project({
            id: latestId,
            creator: msg.sender,
            name: name,
            isActive: false,
            description: "This is the description of simple project"
        });

        payable(wallet.receiver).transfer(msg.value);

        emit Submitted(latestId, latestId, _msgSender(), config.amount);
    }

     function getBalanceCheck() public view returns (uint256) {
        return balanceCheck;
    }

     function balance() public view returns (uint256) {
        return address(this).balance;
    }


      function getAddressCheck() public view returns (address) {
        return addressCheck;
    }

    
      function getMsgSender() public view returns (address) {
        require(hasRole(ADMIN_ROLE, msg.sender) , "error");
        return msgSender;
    }

    function setRoleAdmin(address userAddress)  public {
        grantRole(ADMIN_ROLE, userAddress);
    }

    function setRoleUser(address userAddress)  public {
        grantRole(USER_ROLE, userAddress);
    }

    function isAdmin(address userAddress) public view returns (bool) {
        return hasRole(ADMIN_ROLE, userAddress);
    }

    
    function isUser(address userAddress) public view returns (bool) {
        return hasRole(USER_ROLE, userAddress);
    }

     function setActivetedProject(uint256 projectId) public {
        Project storage project = projects[projectId];
        project.isActive = false;
    }

    function isProjectExist(uint256 projectId) public view returns(uint256){
        Project storage project = projects[projectId];
        // require(bytes(project.id).length > 0, "404");
       return project.id;
    }

    // function projectSize() public returns (uint) {
    //     return projects.length;
    // }
}

livehttps://simplevotesdapp.vercel.app/