using System;

​

public class Employee {

    public string Username{get; set;}

    public string Password{get; set;}

    public string Role{get; set;}

    public Employee (string username, string password, string role ){

        Username = username ;

        Password = password;

        Role = role;

    }}

​

public interface ISharedFolder {

    void PerformRWOperations ();

}

public class SharedFolder : ISharedFolder {

    public void PerformRWOperations() {

        Console.WriteLine("Read and Write ");

    }}

class SharedFolderProxy : ISharedFolder {

    private ISharedFolder folder;

    private Employee employee;

    public SharedFolderProxy(Employee emp) {

        employee = emp ;

    }

    public void PerformRWOperations()

    {

        if(employee.Role.ToUpper() == "ABC" || employee.Role.ToUpper() == "DEF") {

            folder = new SharedFolder();

            Console.WriteLine("ACCESS GRANTED");

            folder.PerformRWOperations();

        }

        else {

            Console.WriteLine("NO ACCESS");

        }

    }}

public class Program {

    public static void Main(string [] args) {

        Console.WriteLine("CLIENT PASSING EMPLOYEE WITH DEVELOPER TO FOLDER ACCESS");

        Employee emp1 = new Employee("CHRIST", "ASER", "ABC");

        SharedFolderProxy folderProxy1 = new SharedFolderProxy(emp1);

        folderProxy1.PerformRWOperations();

        Console.WriteLine();

        Console.WriteLine("CLIENT PASSING EMPLOYEE WITH DEVELOPER TO FOLDER ACCESS");

        Employee emp2 = new Employee("CHRISTUNIVERSITY", "123", "DEVELOPER");

        SharedFolderProxy folderProxy2 = new SharedFolderProxy(emp2);

        folderProxy2.PerformRWOperations();

    }}