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a.sol

pragma solidity >=0.4.22 <0.7.0;
contract a {
    address public accAddr = address(this);
    uint8 public res;
    enum userType {yek, doo}
    userType public num;
    
    function dd(userType _usrType) public{
        
        num = _usrType;
        
    }
}

b.sol

pragma solidity >=0.4.22 <0.7.0;
import "./a.sol";
import "./User.sol";
contract b {
    
    //enum t {aval, dovom}
    //t public aa = t.aval;
    address v;
    function sa(address _addd) public{
        v = _addd;
    }
    function gg(address payable _receiver, string memory _descriptions, address payable _projectId) public{
        User U = User(_receiver);
        U.AddjudgeRequest(_receiver, _descriptions, _projectId);
       //a tw = a(v);
       //tw.dd(t.dovom);
    }
}

judgement.sol

pragma solidity >=0.4.22 <0.7.0;
import "./User.sol";
contract judgement{
    address public owner;
    address public accAddr = address(this);// use for payment
    
    constructor (address payable  _projectID, address payable _accuser, string memory _description, uint256 _cost) public{
        owner = msg.sender;
        //MyComplaint.compID = address(this);
        MyComplaint.ProjectID = _projectID;
        MyComplaint.Accuser = _accuser;
        MyComplaint.Description = _description;
        MyComplaint.costInPercent = _cost;
        MyComplaint.createTime = now;
        MyComplaint.CompStat = Statuses.waitingForPayment;
        
    }
    //enums
    enum Statuses {closed, running, finished, waitingForPayment}
    // structs
    struct complaint{
        address payable ProjectID;
        address payable Accuser;
        string Description;
        uint256 costInPercent;
        uint256 createTime;
        Statuses CompStat;
    }
    //
    complaint public MyComplaint;
    // judge mapping
    address[] public judges;
    // modifier
    modifier onlyOwner {
        require(owner == msg.sender,"not owner");
        _;
    }
    //function recieve payment to start judge selection
    mapping (address => uint256) public balance;
    // 
    function Receives() external payable {
        require(msg.value >= 1 ether * MyComplaint.costInPercent / 100 );//check if the amount sent is enough
        MyComplaint.CompStat = Statuses.running;
        balance[accAddr] += msg.value;
        
    }
    // function send request to Users
    function SendRequest(address payable _receiver, string memory _descriptions, address payable _projectId) public{
        User U = User(_receiver);
        U.AddjudgeRequest(_receiver, _descriptions, _projectId);
        
    }
    function RecieveRespons (bool _answer, address _judgeID) public{
        // id, his addr , his answer in boll
        if(_answer == true){
            judges.push(_judgeID);
            // check if we reach miniumm and maximum number of judges
            
        }
    }
    
    //TO DO 
    // select judge and add to list
    // function judge selection
    // function recieve response from users
    
}

projects.sol

pragma solidity >=0.4.22 <0.7.0;
contract project{
    // constructor
    
    address public owner;
    address public accAddr = address(this);// use for payment
    //constructor
    constructor(address payable  _freelancer, address payable  _employer, string memory _title, uint256 _costInPercent) public{
        owner = msg.sender;
        MyProject.ProjectId = address(this);
        MyProject.FreelancerId = _freelancer;
        MyProject.EmployerId = _employer;
        MyProject.ProjStat = Statuses.waitingForPayment;
        MyProject.CreateTime = now;
        MyProject.title = _title;
        MyProject.costInPercent = _costInPercent;
        
    } 
    // End of constructor
     // enum
    enum Statuses {closed, running, finished, waitingForPayment}
    // proj struct
    struct projectStruct{
        string title;
        address payable ProjectId;
        address payable FreelancerId;
        address payable EmployerId;
        uint256 CreateTime;
        Statuses ProjStat;
        uint256 costInPercent;
    }
    ////
    projectStruct public MyProject;
    ////
    // modifier
    modifier onlyOwner {
        require(owner == msg.sender,"not owner");
        _;
    }
   
    // functions
    //close project function
    function CloseProject() external  onlyOwner{
        MyProject.ProjStat = Statuses.closed;
        
    }
    //
    function FinishProject() external payable onlyOwner{
        MyProject.ProjStat = Statuses.finished;
        
    }
    // recive payment and change status 
    mapping (address => uint256) public balance;
    receive() external payable {
        require(msg.value >= 1 ether * MyProject.costInPercent / 100 );//check if the amount sent is enough
        MyProject.ProjStat = Statuses.running; //start the project
        balance[accAddr] += msg.value;
        
        
    }
    
    
    

}

User.sol

pragma solidity >=0.4.22 <0.7.0;
import "./judgement.sol";

contract User {
    address public owner;
    address public accAddr = address(this);// used for payments
    //constructor
    constructor (string memory _name, string memory _lastname, string memory _email,
    string memory _password, uint256 _Melicode, userTypes _userType) public{
        owner = msg.sender;
        SetUser(_name, _lastname, _email, _password, _Melicode, _userType);
    }
    modifier onlyOwner {
        require(owner == msg.sender,"not owner");
        _;
    }
    // enums
    enum userTypes {Freelancer, Employer, Judge}
    // mappings
    mapping(address => string) public UserProjects;
    mapping(uint256 => UserWarnings) public warning;
    mapping(address => JudgeRequest) public Req;
    // structs
    struct UserWarnings{
        string descriptions;
        address projectID;
        uint256 date;
    }
    
    struct JudgeRequest{
        address receiver;
        string  descriptions;
        address payable projectId;
    }
    struct user{
        address id;
        string Firstname;
        string lastname;
        string pass;
        string email;
        uint256 Melicode;
        uint256 warningsCount;
        bool banUser;
        userTypes Utype;
        uint256 CreateTime;
       
    }
    // our user
    user private thisUser;
    
    //
    function SetUser (string memory _name, string memory _lastname, string memory _email,
    string memory _password, uint256 _Melicode, userTypes _userType) internal{
        thisUser.id = address(this);
        thisUser.Firstname = _name;
        thisUser.lastname = _lastname;
        thisUser.pass = _password;
        thisUser.email = _email;
        thisUser.Melicode = _Melicode;
        thisUser.CreateTime = now;
        thisUser.Utype = _userType;
        thisUser.warningsCount = 0;
        thisUser.banUser = false;
    }
    //function add project
    function Addproject(string memory _title, address _Pid) public onlyOwner {
        UserProjects[_Pid] = _title; 
    }
    //function Addwarnings()
    function AddWarnings(address _projectAddr, string memory _description) public onlyOwner{
        uint256 Warid = thisUser.warningsCount;
        uint256 time = now;
        warning[Warid] = UserWarnings (_description, _projectAddr, time);
        thisUser.warningsCount ++ ;
    }
    // TODO finish get function )
    function getuser () public view onlyOwner returns(address, string memory, string memory, string memory,
    string memory, uint256, uint256, bool, userTypes, uint256){
        return (thisUser.id, thisUser.Firstname, thisUser.lastname, thisUser.pass, thisUser.email, thisUser.Melicode, thisUser.warningsCount, thisUser.banUser, thisUser.Utype, thisUser.CreateTime);  
    }
    //function to send and receive ether
    mapping (address => uint256) public balance;
    //function Receives() 
    receive() external payable {
        balance[accAddr] += msg.value;
    }
    function sendETH (address payable _receiveer,uint256 _amountInPercenr) public payable onlyOwner{
        _receiveer.transfer(1 ether * _amountInPercenr / 100);
    }
    // judgeRequests functions
    function AddjudgeRequest (address _receiver, string memory _descriptions, address payable _projectId) public {
         require(thisUser.Utype == userTypes.Judge, "user is not a judge");
         Req[_projectId] = JudgeRequest (_receiver, _descriptions, _projectId);// add requsts to lists
        
    }
    function ResponseJudgeRequest(address payable _receiver, bool _answer) public{
        judgement J = judgement(_receiver);
        J.RecieveRespons(_answer, accAddr);
    }
    
    
    
    
    
}