/*
 *   Author: Austin Bowmar
 *   Date: 10/10/2018
 *   Server Source File
 *
 */

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;

public class Server
    {
        //initialize socket and input stream
        private Socket          socket   = null;
        private ServerSocket    server   = null;
        private DataInputStream in       =  null;

        // constructor with port
        public Server()
        {

            try
            {
                server = new ServerSocket(50001);
                System.out.println("Server started");

                System.out.println("Waiting for a client ...");

                socket = server.accept();
                System.out.println("Client accepted");

                // takes input from the client socket
                in = new DataInputStream(
                        new BufferedInputStream(socket.getInputStream()));

                String line = "";

                //String[] cliInput = line.split("\\s+");
                File file = new File("Users.txt");
                Scanner sc = new Scanner(file);
                String var = sc.nextLine();
                String[] split = var.split("\\s+");

                String User = split[0];
                String Pass = split[1];

                // reads message from client until "Done" is sent
                while (!line.equals("DONE"))
                {
                    try
                    {
                        line = in.readUTF();

                        String[] cliInput = line.split("\\s+");

                        switch(cliInput[0]) {
                            case "USER":
                                boolean valid = false;

                                while(sc.hasNextLine() && valid != true) {

                                    if(split[0].equals( cliInput[1])){
                                        System.out.println("maybe it works.");
                                        valid = true;
                                    }
                                    else{




                                    }

                                }
                                break;
                            case "PASS":
                                if(split[1].equals(cliInput[1])){
                                    System.out.println("You may enter.");
                                }
                                else{
                                    System.out.println("Nah.");
                                }
                                break;
                            case "LIST":
                                System.out.println("FUCK3");
                                break;
                            case "KILL":
                                System.out.println("FUCK4");
                                break;
                            case "RETR":
                                System.out.println("FUCK5");
                                break;
                        }


                        System.out.println(line);

                    }
                    catch(IOException i)
                    {
                        System.out.println(i);
                    }
                }
                System.out.println("Closing connection");

                // close connection
                socket.close();
                in.close();
            }
            catch(IOException i)
            {
                System.out.println(i);
            }
        }
        public static void main(String args[])
        {
            Server server = new Server();
        }
    }