Login and Register with UI

2025-06-04 22:54:24 +03:30
parent 108a6d8b81
commit 86ca58481f
21 changed files with 1166 additions and 0 deletions
@@ -0,0 +1,70 @@
+package org.to.telegramfinalproject.Client;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Scanner;
+import org.json.JSONObject;
+
+public class ActionHandler {
+    private final PrintWriter out;
+    private final BufferedReader in;
+    private final Scanner scanner;
+
+    public ActionHandler(PrintWriter out, BufferedReader in, Scanner scanner) {
+        this.out = out;
+        this.in = in;
+        this.scanner = scanner;
+    }
+
+    public void loginHandler() {
+        System.out.println("Login form: \n");
+        System.out.println("Username: ");
+        String username = this.scanner.nextLine();
+        System.out.println("Password: ");
+        String password = this.scanner.nextLine();
+        JSONObject request = new JSONObject();
+        request.put("action", "login");
+        request.put("user_id", JSONObject.NULL);
+        request.put("username", username);
+        request.put("password", password);
+        request.put("profile_name", JSONObject.NULL);
+        this.send(request);
+    }
+
+    public void register() {
+        System.out.println("Register form: \n");
+        System.out.println("Username: ");
+        String username = this.scanner.nextLine();
+        System.out.println("User id: ");
+        String user_id = this.scanner.nextLine();
+        System.out.println("Password: ");
+        String password = this.scanner.nextLine();
+        System.out.println("Profile name: ");
+        String profile_name = this.scanner.nextLine();
+        JSONObject request = new JSONObject();
+        request.put("action", "register");
+        request.put("user_id", user_id);
+        request.put("username", username);
+        request.put("password", password);
+        request.put("profile_name", profile_name);
+        this.send(request);
+    }
+
+    private void send(JSONObject request) {
+        try {
+            this.out.println(request.toString());
+            String responseText = this.in.readLine();
+            if (responseText != null) {
+                JSONObject response = new JSONObject(responseText);
+                System.out.println("Server response: " + response.getString("message"));
+            } else {
+                System.out.println("No response from server.");
+            }
+        } catch (IOException e) {
+            System.err.println("Error: " + e.getMessage());
+        }
+
+    }
+}
+
@@ -0,0 +1,30 @@
+package org.to.telegramfinalproject.Client;
+
+import java.io.*;
+import java.net.Socket;
+
+public class ClientConnection {
+    private Socket socket;
+    private BufferedReader in;
+    private PrintWriter out;
+
+    public ClientConnection(String host, int port) throws IOException {
+        this.socket = new Socket(host, port);
+        this.in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+        this.out = new PrintWriter(socket.getOutputStream(), true);
+    }
+
+    public void send(String request) {
+        out.println(request);
+    }
+
+    public String receive() throws IOException {
+        return in.readLine();
+    }
+
+    public void close() throws IOException {
+        socket.close();
+        in.close();
+        out.close();
+    }
+}
@@ -0,0 +1,84 @@
+package org.to.telegramfinalproject.Client;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class TelegramClient {
+    private static final String SERVER_HOST = "localhost";
+    private static final int SERVER_PORT = 12345;
+    private Socket socket;
+    private BufferedReader in;
+    private PrintWriter out;
+    private final Scanner scanner;
+    ActionHandler handler = null;
+
+    public TelegramClient() {
+        this.scanner = new Scanner(System.in);
+    }
+
+    public void start() {
+        try {
+            this.socket = new Socket(SERVER_HOST, SERVER_PORT);
+            this.in = new BufferedReader(new InputStreamReader(this.socket.getInputStream()));
+            this.out = new PrintWriter(this.socket.getOutputStream(), true);
+            System.out.println(" Connected to Telegram Server");
+            this.handler = new ActionHandler(this.out, this.in, this.scanner);
+            this.showMainMenu();
+        } catch (IOException e) {
+            System.err.println("Error connecting to server: " + e.getMessage());
+        }
+
+    }
+
+    private void showMainMenu() {
+        while(true) {
+            System.out.println("Main Menu:");
+            System.out.println("1. Register");
+            System.out.println("2. Login");
+            System.out.println("3. Exit");
+            System.out.print("Choose an option: ");
+            switch (this.scanner.nextLine()) {
+                case "1":
+                    this.handler.register();
+                    break;
+                case "2":
+                    this.handler.loginHandler();
+                    break;
+                case "3":
+                    System.out.println(" Disconnecting...");
+
+                    try {
+                        if (this.socket != null) {
+                            this.socket.close();
+                        }
+
+                        if (this.in != null) {
+                            this.in.close();
+                        }
+
+                        if (this.out != null) {
+                            this.out.close();
+                        }
+
+                        System.out.println("Disconnected.");
+                    } catch (IOException e) {
+                        System.err.println(" Error closing connection: " + e.getMessage());
+                    }
+
+                    return;
+                default:
+                    System.out.println("Invalid choice. Please try again.");
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        TelegramClient client = new TelegramClient();
+        client.start();
+    }
+}
+