change new files

build.gradle

@@ -1,56 +1,59 @@
 plugins {
-  id 'java'
-  id 'application'
-  id 'org.javamodularity.moduleplugin' version '1.8.12'
-  id 'org.openjfx.javafxplugin' version '0.0.13'
-  id 'org.beryx.jlink' version '2.25.0'
+    id 'java'
+    id 'application'
+    id 'org.javamodularity.moduleplugin' version '1.8.12'
+    id 'org.openjfx.javafxplugin' version '0.0.13'
+    id 'org.beryx.jlink' version '2.25.0'
 }
 
 group 'AP.Restaurant'
 version '1.0-SNAPSHOT'
 
 repositories {
-  mavenCentral()
+    mavenCentral()
 }
 
 ext {
-  junitVersion = '5.10.2'
+    junitVersion = '5.10.2'
 }
 
-sourceCompatibility = '23'
-targetCompatibility = '23'
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
 
 tasks.withType(JavaCompile) {
-  options.encoding = 'UTF-8'
+    options.encoding = 'UTF-8'
 }
 
 application {
-  mainModule = 'ap.restaurant.restaurant'
-  mainClass = 'ap.restaurant.restaurant.HelloApplication'
+    mainModule = 'ap.restaurant.restaurant'
+    mainClass = 'ap.restaurant.restaurant.HelloApplication'
 }
 
 javafx {
-  version = '17.0.6'
-  modules = ['javafx.controls', 'javafx.fxml']
+    version = '21.0.7'
+    modules = ['javafx.controls', 'javafx.fxml']
 }
 
 dependencies {
-
-  testImplementation("org.junit.jupiter:junit-jupiter-api:${junitVersion}")
-  testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junitVersion}")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:${junitVersion}")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junitVersion}")
 }
 
 test {
-useJUnitPlatform()}
+    useJUnitPlatform()
+}
 
 jlink {
-  imageZip = project.file("${buildDir}/distributions/app-${javafx.platform.classifier}.zip")
-  options = ['--strip-debug', '--compress', '2', '--no-header-files', '--no-man-pages']
-  launcher {
-    name = 'app'
-  }
+    imageZip = project.file("${buildDir}/distributions/app-${javafx.platform.classifier}.zip")
+    options = ['--strip-debug', '--compress', '2', '--no-header-files', '--no-man-pages']
+    launcher {
+        name = 'app'
+    }
 }
 
 jlinkZip {
-  group = 'distribution'
-}
+    group = 'distribution'
+}

src/main/java/ap/restaurant/restaurant/Authenticate.java

@@ -0,0 +1,42 @@
+package ap.restaurant.restaurant;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.util.Scanner;
+
+import static ap.restaurant.restaurant.User.users;
+
+public class Authenticate {
+    private String username;
+    private String password;
+    Scanner sc = new Scanner(System.in);
+
+    public User signin() {
+        int id = (int)(Math.random() * 900) + 100;
+        System.out.println("your id: " + id);
+        System.out.println("Enter username: ");
+        String username = sc.nextLine();
+        System.out.println("Enter password: ");
+        String password = sc.nextLine();
+        System.out.println("Enter email: ");
+        String email = sc.nextLine();
+
+        User user = new User(id, username, password, email);
+        users.add(user);
+        System.out.println("ُSign in successful");
+        return user;
+    }
+
+
+    public void login(User user) {
+        if (users.contains(user)) {
+            System.out.println("You are logged in!");
+        }
+    }
+}

src/main/java/ap/restaurant/restaurant/HelloApplication.java

@@ -5,19 +5,17 @@
 import javafx.scene.Scene;
 import javafx.stage.Stage;
 
-import java.io.IOException;
-
 public class HelloApplication extends Application {
     @Override
-    public void start(Stage stage) throws IOException {
-        FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("hello-view.fxml"));
-        Scene scene = new Scene(fxmlLoader.load(), 320, 240);
-        stage.setTitle("Hello!");
+    public void start(Stage stage) throws Exception {
+        FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("login.fxml"));
+        Scene scene = new Scene(fxmlLoader.load(), 400, 300);
+        stage.setTitle("AMD Restaurant");
         stage.setScene(scene);
         stage.show();
     }
 
     public static void main(String[] args) {
         launch();
     }
-}
+}

src/main/java/ap/restaurant/restaurant/LoginController.java

@@ -0,0 +1,79 @@
+package ap.restaurant.restaurant;
+
+import javafx.fxml.FXML;
+import javafx.scene.control.*;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+import javafx.fxml.FXMLLoader;
+
+import java.io.IOException;
+import java.sql.*;
+
+public class LoginController {
+    @FXML private TextField usernameField;
+    @FXML private PasswordField passwordField;
+    @FXML private TextField emailField;
+    @FXML private Label messageLabel;
+
+    private final String url = "jdbc:postgresql://localhost:5432/Restaurant";
+    private final String dbUser = "postgres";
+    private final String dbPassword = "AmirMahdiImani";
+
+    @FXML
+    protected void onSignUp() {
+        String username = usernameField.getText();
+        String password = passwordField.getText();
+        String email = emailField.getText();
+
+        if (username.isEmpty() || password.isEmpty() || email.isEmpty()) {
+            messageLabel.setText("Please fill all fields.");
+            return;
+        }
+
+        int id = (int)(Math.random() * 9000 + 1000);
+
+        try (Connection conn = DriverManager.getConnection(url, dbUser, dbPassword)) {
+            String insert = "INSERT INTO users (id, username, password, email) VALUES (?, ?, ?, ?)";
+            try (PreparedStatement stmt = conn.prepareStatement(insert)) {
+                stmt.setInt(1, id);
+                stmt.setString(2, username);
+                stmt.setString(3, password);
+                stmt.setString(4, email);
+                stmt.executeUpdate();
+                messageLabel.setText("Signup successful!");
+            }
+        } catch (SQLException e) {
+            messageLabel.setText("Error: " + e.getMessage());
+        }
+    }
+
+    @FXML
+    protected void onLogin() {
+        String username = usernameField.getText();
+        String password = passwordField.getText();
+
+        try (Connection conn = DriverManager.getConnection(url, dbUser, dbPassword)) {
+            String query = "SELECT * FROM users WHERE username = ? AND password = ?";
+            try (PreparedStatement stmt = conn.prepareStatement(query)) {
+                stmt.setString(1, username);
+                stmt.setString(2, password);
+                ResultSet rs = stmt.executeQuery();
+
+                if (rs.next()) {
+                    int userId = rs.getInt("id");
+                    FXMLLoader loader = new FXMLLoader(getClass().getResource("menu.fxml"));
+                    Scene menuScene = new Scene(loader.load());
+                    MenuController controller = loader.getController();
+                    controller.setUserId(userId);
+
+                    Stage stage = (Stage) usernameField.getScene().getWindow();
+                    stage.setScene(menuScene);
+                } else {
+                    messageLabel.setText("Invalid login.");
+                }
+            }
+        } catch (SQLException | IOException e) {
+            messageLabel.setText("Error: " + e.getMessage());
+        }
+    }
+}