Login-page and Register-page UI implemented.

2025-06-29 23:29:55 +03:30
parent c1b14a9159
commit 19fcf525ae
9 changed files with 469 additions and 91 deletions
@@ -0,0 +1,134 @@
+package org.to.telegramfinalproject.UI;
+
+import javafx.animation.PauseTransition;
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.scene.Parent;
+import javafx.scene.control.*;
+import javafx.stage.Stage;
+import javafx.util.Duration;
+import org.json.JSONObject;
+import org.to.telegramfinalproject.Client.ClientConnection;
+import org.to.telegramfinalproject.Database.userDatabase;
+import org.to.telegramfinalproject.Models.User;
+import org.to.telegramfinalproject.Security.PasswordHashing;
+
+import java.io.IOException;
+
+public class LoginController {
+
+    @FXML private TextField usernameField;
+
+    @FXML private PasswordField passwordField;
+    @FXML private TextField visiblePasswordField;
+
+    @FXML private Button togglePasswordBtn;
+    @FXML private Label errorLabel;
+
+    private ClientConnection connection;
+    private boolean passwordVisible = false;
+
+    @FXML
+    public void initialize() {
+        // Sync hidden and visible password fields
+        visiblePasswordField.textProperty().bindBidirectional(passwordField.textProperty());
+
+        try {
+            connection = new ClientConnection("localhost", 12345);
+        } catch (Exception e) {
+            System.out.println("Could not connect to server: " + e.getMessage());
+        }
+    }
+
+    @FXML
+    private void togglePasswordVisibility() {
+        passwordVisible = !passwordVisible;
+        visiblePasswordField.setVisible(passwordVisible);
+        visiblePasswordField.setManaged(passwordVisible);
+        passwordField.setVisible(!passwordVisible);
+        passwordField.setManaged(!passwordVisible);
+        togglePasswordBtn.setText(passwordVisible ? "👁" : "👁");
+    }
+
+    @FXML
+    private void handleLogin() {
+        String username = usernameField.getText();
+        String password = passwordField.getText();
+
+        // 1. Check for empty fields
+        if (username.isEmpty() || password.isEmpty()) {
+            showError("Please fill in all required fields.");
+            return;
+        }
+
+        // 2. Check if username exists
+        userDatabase userDb = new userDatabase();
+        if (!userDb.existsByUsername(username)) {
+            showError("This username doesn’t exist.");
+            return;
+        }
+
+        // 3. Check if password is correct
+        User user = userDb.findByUsername(username);
+        if (!PasswordHashing.verify(password, user.getPassword())) {
+            showError("Incorrect password.");
+            return;
+        }
+
+        // 4. Attempt to send to server
+        try {
+            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);
+
+            if (connection != null) {
+                connection.send(request.toString());
+                String responseStr = connection.receive();
+                JSONObject response = new JSONObject(responseStr);
+                System.out.println("Status: " + response.getString("status"));
+                System.out.println("Message: " + response.getString("message"));
+
+                // Simulate successful login (since main.fxml isn’t ready)
+                Alert alert = new Alert(Alert.AlertType.INFORMATION, "Login successful!");
+                alert.show();
+            }
+
+        } catch (Exception ex) {
+            showError("Unable to connect to server. Please try again later.");
+        }
+    }
+
+    @FXML
+    private void switchToRegister() throws IOException {
+        switchScene("register_view.fxml");
+    }
+
+    private void switchScene(String fxmlFile) {
+        try {
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("/org/to/telegramfinalproject/" + fxmlFile));
+            Parent root = loader.load();
+            Stage stage = (Stage) usernameField.getScene().getWindow();
+            stage.setScene(new Scene(root, 500, 700));
+            stage.show();
+        } catch (IOException e) {
+            e.printStackTrace();
+            showError("Could not load scene: " + fxmlFile);
+        }
+    }
+
+    private void showError(String message) {
+        errorLabel.setVisible(false);
+        errorLabel.setText("");  // Clear the label text
+
+        PauseTransition pause = new PauseTransition(Duration.millis(50));
+        pause.setOnFinished(event -> {
+            errorLabel.setText(message);
+            errorLabel.setVisible(true);
+        });
+        pause.play();
+    }
+}