package ui;

import model.Grade;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

/**
 * 答题结果展示界面
 * 显示得分和统计信息,提供继续答题或退出选项
 */
public class ResultFrame extends JFrame {
    private static final long serialVersionUID = 1L;

    private final String email;
    private final Grade gradeType;

    /**
     * 构造结果展示界面
     *
     * @param email 用户邮箱
     * @param gradeType 年级类型
     * @param score 得分
     * @param correctCount 答对题数
     * @param totalCount 总题数
     */
    public ResultFrame(String email, Grade gradeType, int score,
                       int correctCount, int totalCount) {
        this.email = email;
        this.gradeType = gradeType;

        setTitle("数学学习软件 - 答题结果");
    setSize(600, 420);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    setResizable(true);

        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
        mainPanel.setBorder(BorderFactory.createEmptyBorder(30, 30, 30, 30));

        JPanel centerPanel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(10, 10, 10, 10);
        gbc.gridx = 0;
        gbc.gridy = 0;

        JLabel titleLabel = new JLabel("答题完成!", JLabel.CENTER);
        titleLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
        centerPanel.add(titleLabel, gbc);

        gbc.gridy = 1;
        JLabel scoreLabel = new JLabel("得分: " + score, JLabel.CENTER);
        scoreLabel.setFont(new Font("微软雅黑", Font.BOLD, 36));
        scoreLabel.setForeground(getScoreColor(score));
        centerPanel.add(scoreLabel, gbc);

        gbc.gridy = 2;
        JLabel detailLabel = new JLabel(
                String.format("答对 %d 题 / 共 %d 题", correctCount, totalCount),
                JLabel.CENTER);
        detailLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
        centerPanel.add(detailLabel, gbc);

        mainPanel.add(centerPanel, BorderLayout.CENTER);

        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 15, 0));
        JButton continueButton = new JButton("继续做题");
        JButton exitButton = new JButton("退出");

        continueButton.setPreferredSize(new Dimension(120, 35));
        exitButton.setPreferredSize(new Dimension(120, 35));

        buttonPanel.add(continueButton);
        buttonPanel.add(exitButton);

        mainPanel.add(buttonPanel, BorderLayout.SOUTH);

        add(mainPanel);

        continueButton.addActionListener(e -> continueQuiz());
        exitButton.addActionListener(e -> exitToSelection());
    }

    /**
     * 根据分数返回对应颜色
     *
     * @param score 分数
     * @return 颜色对象
     */
    private Color getScoreColor(int score) {
        if (score >= 90) {
            return new Color(0, 150, 0);
        } else if (score >= 60) {
            return new Color(255, 140, 0);
        } else {
            return new Color(200, 0, 0);
        }
    }

    /**
     * 继续做题
     */
    private void continueQuiz() {
        GradeSelectionFrame frame = new GradeSelectionFrame(email, gradeType);
        frame.setVisible(true);
        this.dispose();
    }

    /**
     * 退出到选择界面
     */
    private void exitToSelection() {
        GradeSelectionFrame frame = new GradeSelectionFrame(email, gradeType);
        frame.setVisible(true);
        this.dispose();
    }
}