package com.mathapp;

import com.formdev.flatlaf.FlatLightLaf;
import com.mathapp.models.TestPaper;
import com.mathapp.panels.*;

import javax.swing.*;
import java.awt.*;

/**
 * 应用程序主类
 * 负责初始化UI、管理面板切换和维护全局状态。
 */
public class MathApp extends JFrame {

  private CardLayout cardLayout;
  private JPanel mainPanel;
  private String currentUserEmail;

  public static final String LOGIN_PANEL = "LoginPanel";
  public static final String REGISTER_PANEL = "RegisterPanel";
  public static final String SET_PASSWORD_PANEL = "SetPasswordPanel";
  public static final String MAIN_MENU_PANEL = "MainMenuPanel";
  public static final String QUIZ_PANEL = "QuizPanel";
  public static final String RESULTS_PANEL = "ResultsPanel";
  public static final String CHANGE_PASSWORD_PANEL = "ChangePasswordPanel";

  public MathApp() {
    initUI();
  }

  private void initUI() {
    setTitle("数学学习平台");
    setSize(800, 600);
    setResizable(false);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);

    cardLayout = new CardLayout();
    mainPanel = new JPanel(cardLayout);

    // 添加所有静态面板
    mainPanel.add(new LoginPanel(this), LOGIN_PANEL);
    mainPanel.add(new RegisterPanel(this), REGISTER_PANEL);
    mainPanel.add(new MainMenuPanel(this), MAIN_MENU_PANEL);
    mainPanel.add(new ChangePasswordPanel(this), CHANGE_PASSWORD_PANEL);

    add(mainPanel);
  }

  /**
   * 切换到指定的面板
   * @param panelName 要显示的面板名称
   */
  public void showPanel(String panelName) {
    cardLayout.show(mainPanel, panelName);
  }

  /**
   * 注册成功后，动态创建并跳转到设置密码面板
   * @param email 刚刚注册成功的用户邮箱
   */
  public void showSetPasswordPanel(String email) {
    this.currentUserEmail = email; // 临时存储
    SetPasswordPanel setPasswordPanel = new SetPasswordPanel(this, email);
    mainPanel.add(setPasswordPanel, SET_PASSWORD_PANEL);
    showPanel(SET_PASSWORD_PANEL);
  }

  /**
   * 开始一场新的测验
   * @param level "小学", "初中", 或 "高中"
   * @param questionCount 题目数量
   */
  public void startQuiz(String level, int questionCount) {
    QuizPanel quizPanel = new QuizPanel(this, level, questionCount);
    mainPanel.add(quizPanel, QUIZ_PANEL);
    showPanel(QUIZ_PANEL);
  }

  /**
   * 显示测验结果
   * @param score 用户得分
   * @param totalQuestions 题目总数
   * @param testPaper 完整的试卷数据，用于保存
   */
  public void showResults(int score, int totalQuestions, TestPaper testPaper) {
    ResultsPanel resultsPanel = new ResultsPanel(this, score, totalQuestions);
    mainPanel.add(resultsPanel, RESULTS_PANEL);
    showPanel(RESULTS_PANEL);
  }

  public void setCurrentUserEmail(String email) {
    this.currentUserEmail = email;
  }

  public String getCurrentUserEmail() {
    return currentUserEmail;
  }


  public static void main(String[] args) {
    // 设置现代化UI外观
    FlatLightLaf.setup();
    // 全局UI定制
    UIManager.put("Button.arc", 15);
    UIManager.put("Component.arc", 15);
    UIManager.put("ProgressBar.arc", 999);
    UIManager.put("TextComponent.arc", 15);
    UIManager.put("OptionPane.buttonAreaBorder", BorderFactory.createEmptyBorder(10, 0, 0, 0));


    EventQueue.invokeLater(() -> {
      MathApp ex = new MathApp();
      ex.setVisible(true);
    });
  }
}