package mathlearning.ui;

import mathlearning.model.User;
import mathlearning.service.UserService;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ProfileFrame extends JFrame {
    private User user;
    private UserService userService;
    private JPanel mainPanel;
    private JLabel usernameValue;

    public ProfileFrame(User user, UserService userService) {
        this.user = user;
        this.userService = userService;
        addWindowListener(new java.awt.event.WindowAdapter() {
            @Override
            public void windowClosing(java.awt.event.WindowEvent windowEvent) {
                MainFrame mainFrame = new MainFrame(user, userService);
                mainFrame.setVisible(true);
            }
        });
        InitUI();
    }

    private void InitUI() {
        setTitle("个人资料");
        setSize(400, 300);
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        setLocationRelativeTo(null);
        setResizable(false);

        // 创建主面板
        mainPanel = new JPanel(new BorderLayout(10, 10));
        mainPanel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));

        //标题
        JLabel titleLabel = new JLabel("个人资料", JLabel.CENTER);
        titleLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
        mainPanel.add(titleLabel, BorderLayout.NORTH);

        //个人信息(表单)
        JPanel infoPanel = new JPanel(new GridLayout(3, 2, 10, 10));
        JLabel usernameLabel = new JLabel("用户名：");
        usernameLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
        usernameValue = new JLabel(user.getUsername());
        usernameLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
        infoPanel.add(usernameLabel);
        infoPanel.add(usernameValue);
        JLabel mailLabel = new JLabel("QQ邮箱：");
        mailLabel.setFont(new Font("微软雅黑", Font.PLAIN, 14));
        JLabel mailValue = new JLabel(user.getEmail());
        infoPanel.add(mailLabel);
        infoPanel.add(mailValue);
        mainPanel.add(infoPanel, BorderLayout.CENTER);

        //三个按钮
        JPanel buttonPanel = new JPanel(new FlowLayout());
        JButton returnToMainButton = new JButton("返回");
        returnToMainButton.addActionListener(new returnToMainButtonListener());

        JButton changePasswordButton = new JButton("修改密码");
        changePasswordButton.addActionListener(e -> openChangePasswordFrame());

        JButton changeUsernameButton = new JButton("更改用户名");
        changeUsernameButton.addActionListener(new ChangeUsernameButtonListener());

        buttonPanel.add(returnToMainButton);
        buttonPanel.add(changePasswordButton);
        buttonPanel.add(changeUsernameButton);

        mainPanel.add(buttonPanel, BorderLayout.SOUTH);

        add(mainPanel);
    }

    private class returnToMainButtonListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            MainFrame mainFrame = new MainFrame(user, userService);
            mainFrame.setVisible(true);
            dispose();
        }
    }

    private void openChangePasswordFrame() {
        ChangePasswordFrame changePasswordFrame = new ChangePasswordFrame(user, userService, this);
        changePasswordFrame.setVisible(true);
        this.setVisible(false);
    }

    private class ChangeUsernameButtonListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e ) {
            String newUsername = JOptionPane.showInputDialog(ProfileFrame.this, "请输入您的新用户名：", "修改用户名", JOptionPane.QUESTION_MESSAGE);

            if (newUsername == null ) {
                return;
            }

            newUsername = newUsername.trim();
            if (newUsername.isEmpty()) {
                JOptionPane.showMessageDialog( ProfileFrame.this, "用户名不能为空！", "错误", JOptionPane.ERROR_MESSAGE);
                return;
            }
            if (newUsername.equals(user.getUsername())) {
                JOptionPane.showMessageDialog( ProfileFrame.this, "新用户名与原用户名相同！", "提示", JOptionPane.ERROR_MESSAGE);
                return;
            }
            int confirm = JOptionPane.showConfirmDialog(ProfileFrame.this,"确定要修改用户名为\"" + newUsername + "\"吗？", "修改用户名", JOptionPane.YES_NO_OPTION);
            if (confirm == JOptionPane.YES_OPTION) {
                String oldUsername = user.getUsername();

                boolean updated = userService.updateUsername(user.getEmail(), newUsername);
                if (updated) {
                    usernameValue.setText(newUsername);
                    JOptionPane.showMessageDialog(ProfileFrame.this, "修改成功！", "成功", JOptionPane.INFORMATION_MESSAGE);
                }
                else {
                    user.setUsername(oldUsername);
                    JOptionPane.showMessageDialog(ProfileFrame.this, "修改失败！", "错误", JOptionPane.ERROR_MESSAGE);
                }
            }
        }
    }
}