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package com.personalproject.ui.scenes;
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import javafx.geometry.Insets;
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import javafx.geometry.Pos;
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import javafx.scene.control.*;
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import javafx.scene.layout.*;
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import javafx.scene.text.Font;
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import javafx.scene.text.FontWeight;
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import javafx.stage.Stage;
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import com.personalproject.controller.MathLearningController;
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import com.personalproject.model.DifficultyLevel;
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import com.personalproject.ui.scenes.LoginScene;
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/**
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* Scene for handling user registration.
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*/
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public class RegistrationScene extends BorderPane {
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private final Stage primaryStage;
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private final MathLearningController controller;
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private TextField usernameField;
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private TextField emailField;
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private ComboBox<DifficultyLevel> difficultyComboBox;
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private Button sendCodeButton;
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private TextField registrationCodeField;
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private Button verifyCodeButton;
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private PasswordField passwordField;
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private PasswordField confirmPasswordField;
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private Button setPasswordButton;
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private Button backButton;
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private VBox registrationForm;
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/**
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* Constructor for RegistrationScene.
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*
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* @param primaryStage The main stage of the application
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* @param controller The math learning controller
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*/
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public RegistrationScene(Stage primaryStage, MathLearningController controller) {
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this.primaryStage = primaryStage;
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this.controller = controller;
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initializeUI();
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}
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/**
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* Initializes the UI components.
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*/
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private void initializeUI() {
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// Create the main layout
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VBox mainLayout = new VBox(15);
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mainLayout.setAlignment(Pos.CENTER);
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mainLayout.setPadding(new Insets(20));
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// Title
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Label titleLabel = new Label("用户注册");
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titleLabel.setFont(Font.font("System", FontWeight.BOLD, 24));
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// Registration Form
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registrationForm = new VBox(15);
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registrationForm.setAlignment(Pos.CENTER);
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// Step 1: Basic Info
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GridPane basicInfoForm = new GridPane();
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basicInfoForm.setHgap(10);
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basicInfoForm.setVgap(10);
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basicInfoForm.setAlignment(Pos.CENTER);
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Label usernameLabel = new Label("用户名:");
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usernameField = new TextField();
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usernameField.setPrefWidth(200);
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Label emailLabel = new Label("邮箱:");
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emailField = new TextField();
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emailField.setPrefWidth(200);
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Label difficultyLabel = new Label("默认难度:");
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difficultyComboBox = new ComboBox<>();
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difficultyComboBox.getItems().addAll(DifficultyLevel.PRIMARY, DifficultyLevel.MIDDLE, DifficultyLevel.HIGH);
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difficultyComboBox.setValue(DifficultyLevel.PRIMARY);
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difficultyComboBox.setPrefWidth(200);
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basicInfoForm.add(usernameLabel, 0, 0);
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basicInfoForm.add(usernameField, 1, 0);
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basicInfoForm.add(emailLabel, 0, 1);
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basicInfoForm.add(emailField, 1, 1);
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basicInfoForm.add(difficultyLabel, 0, 2);
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basicInfoForm.add(difficultyComboBox, 1, 2);
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sendCodeButton = new Button("发送注册码");
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sendCodeButton.setPrefWidth(120);
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registrationForm.getChildren().addAll(basicInfoForm, sendCodeButton);
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// Step 2: Verification (hidden initially)
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VBox verificationSection = new VBox(10);
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verificationSection.setAlignment(Pos.CENTER);
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verificationSection.setVisible(false);
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verificationSection.setManaged(false);
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Label codeLabel = new Label("注册码:");
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registrationCodeField = new TextField();
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registrationCodeField.setPrefWidth(200);
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verifyCodeButton = new Button("验证注册码");
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verifyCodeButton.setPrefWidth(120);
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verificationSection.getChildren().addAll(codeLabel, registrationCodeField, verifyCodeButton);
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registrationForm.getChildren().add(verificationSection);
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// Step 3: Password Setting (hidden initially)
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VBox passwordSection = new VBox(10);
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passwordSection.setAlignment(Pos.CENTER);
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passwordSection.setVisible(false);
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passwordSection.setManaged(false);
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Label passwordLabel = new Label("设置密码 (6-10位，包含大小写字母和数字):");
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passwordField = new PasswordField();
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passwordField.setPrefWidth(200);
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Label confirmPasswordLabel = new Label("确认密码:");
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confirmPasswordField = new PasswordField();
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confirmPasswordField.setPrefWidth(200);
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setPasswordButton = new Button("设置密码");
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setPasswordButton.setPrefWidth(120);
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passwordSection.getChildren().addAll(passwordLabel, passwordField, confirmPasswordLabel,
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confirmPasswordField, setPasswordButton);
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registrationForm.getChildren().add(passwordSection);
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// Back button
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backButton = new Button("返回");
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backButton.setPrefWidth(100);
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// Add components to main layout
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mainLayout.getChildren().addAll(titleLabel, registrationForm, backButton);
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setCenter(mainLayout);
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// Add event handlers
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addEventHandlers(sendCodeButton, verificationSection, verifyCodeButton, passwordSection);
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}
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/**
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* Adds event handlers to UI components.
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*/
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private void addEventHandlers(Button sendCodeButton, VBox verificationSection,
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Button verifyCodeButton, VBox passwordSection) {
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sendCodeButton.setOnAction(e -> handleSendCode(verificationSection));
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verifyCodeButton.setOnAction(e -> handleVerifyCode(passwordSection));
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setPasswordButton.setOnAction(e -> handleSetPassword());
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backButton.setOnAction(e -> handleBack());
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}
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/**
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* Handles sending registration code.
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*/
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private void handleSendCode(VBox verificationSection) {
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String username = usernameField.getText().trim();
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String email = emailField.getText().trim();
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DifficultyLevel difficultyLevel = difficultyComboBox.getValue();
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if (username.isEmpty() || email.isEmpty()) {
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showAlert(Alert.AlertType.WARNING, "警告", "请输入用户名和邮箱");
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return;
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}
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if (!controller.isValidEmail(email)) {
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showAlert(Alert.AlertType.ERROR, "邮箱格式错误", "请输入有效的邮箱地址");
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return;
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}
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// Initiate registration
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boolean success = controller.initiateRegistration(username, email, difficultyLevel);
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if (success) {
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showAlert(Alert.AlertType.INFORMATION, "注册码已发送", "注册码已发送至您的邮箱，请查收。");
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verificationSection.setVisible(true);
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verificationSection.setManaged(true);
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} else {
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showAlert(Alert.AlertType.ERROR, "注册失败", "用户名或邮箱可能已存在，请重试。");
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}
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}
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/**
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* Handles verification of registration code.
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*/
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private void handleVerifyCode(VBox passwordSection) {
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String username = usernameField.getText().trim();
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String registrationCode = registrationCodeField.getText().trim();
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if (registrationCode.isEmpty()) {
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showAlert(Alert.AlertType.WARNING, "警告", "请输入注册码");
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return;
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}
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boolean verified = controller.verifyRegistrationCode(username, registrationCode);
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if (verified) {
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showAlert(Alert.AlertType.INFORMATION, "验证成功", "注册码验证成功！");
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passwordSection.setVisible(true);
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passwordSection.setManaged(true);
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} else {
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showAlert(Alert.AlertType.ERROR, "验证失败", "注册码验证失败，请检查后重试。");
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}
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}
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/**
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* Handles setting the user password.
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*/
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private void handleSetPassword() {
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String username = usernameField.getText().trim();
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String password = passwordField.getText();
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String confirmPassword = confirmPasswordField.getText();
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if (password.isEmpty() || confirmPassword.isEmpty()) {
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showAlert(Alert.AlertType.WARNING, "警告", "请输入并确认密码");
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return;
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}
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if (!password.equals(confirmPassword)) {
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showAlert(Alert.AlertType.ERROR, "密码不匹配", "两次输入的密码不一致");
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return;
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}
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if (!controller.isValidPassword(password)) {
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showAlert(Alert.AlertType.ERROR, "密码不符合要求",
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"密码长度必须为6-10位，且包含大小写字母和数字");
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return;
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}
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boolean success = controller.setPassword(username, password);
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if (success) {
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showAlert(Alert.AlertType.INFORMATION, "注册成功", "注册成功！请登录。");
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handleBack(); // Go back to login screen
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} else {
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showAlert(Alert.AlertType.ERROR, "设置密码失败", "设置密码失败，请重试。");
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}
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}
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/**
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* Handles the back button action.
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*/
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private void handleBack() {
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LoginScene loginScene = new LoginScene(primaryStage, controller);
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primaryStage.getScene().setRoot(loginScene);
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}
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/**
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* Shows an alert dialog.
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*
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* @param alertType Type of alert
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* @param title Title of the alert
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* @param message Message to display
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*/
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private void showAlert(Alert.AlertType alertType, String title, String message) {
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Alert alert = new Alert(alertType);
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alert.setTitle(title);
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alert.setHeaderText(null);
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alert.setContentText(message);
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alert.showAndWait();
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}
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} |
