package view;

import backend.model.Questions;
import backend.service.impl.QuestionsService;

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

public class EditQuestionDialog extends JDialog{
    private JTextField nameTextField;
    private JTextField descriptionTextField;
    private JTextField answerTextField;
    private JComboBox frequencyCombobox;
    private JButton saveButton;
    private JButton cancelButton;
    private int type;
    private Questions question;
    private QuestionsService questionsService = new QuestionsService();

    public EditQuestionDialog(int type, Questions question) {
        this.type = type;
        this.question = question;
        initView();
    }

    public void initListener(){
        saveButton.addActionListener(e->{
            String name = nameTextField.getText().trim();
            String description = descriptionTextField.getText().trim();
            String answer = answerTextField.getText().trim();
            if(name.equals("")|| description.equals("")|| answer.equals("")) {
                JOptionPane.showMessageDialog(this, "请填写完整！");
                return;
            }
            Questions questionsPo = new Questions();
            questionsPo.setName(name);
            questionsPo.setDescription(description);
            questionsPo.setAnswer(answer);
            Integer index=frequencyCombobox.getSelectedIndex();
            questionsPo.setFrequency(index==0 ? null:index);
            String message;
            boolean res;
            if(type==0) {
                res = questionsService.insert(questionsPo);
                message = "添加";
            }
            else{
                questionsPo.setId(question.getId());
                res = questionsService.update(questionsPo);
                message = "修改";
            }
            if(res)
                dispose();
            else
                JOptionPane.showMessageDialog(this, message+"失败");
        });
        cancelButton.addActionListener(e->{
            dispose();
        });
    }
    private void initView(){
        setSize(400,300);
        setLocationRelativeTo(null);//居中
        add(initPanel());
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        setModal(true);//设置模态
        if(type==0)
            setTitle("添加问题");
        else{
            setTitle("修改问题");
            nameTextField.setText(question.getName());
            descriptionTextField.setText(question.getDescription());
            answerTextField.setText(question.getAnswer());
            frequencyCombobox.setSelectedIndex(question.getFrequency() == null? 0:question.getFrequency());
        }
        //细节：要先初始化监听器，再初始化界面
        //初始化监听器
        initListener();
        //显示界面
        setVisible(true);
    }
    private JPanel initPanel(){
        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new GridLayout(5,2));
        //第一行 单词
        mainPanel.add(new JLabel("问题"));
        nameTextField = new JTextField();
        mainPanel.add(nameTextField);
        //第二行 定义
        mainPanel.add(new JLabel("描述"));
        descriptionTextField = new JTextField();
        mainPanel.add(descriptionTextField);
        //第三行 例句
        mainPanel.add(new JLabel("答案"));
        answerTextField = new JTextField();
        mainPanel.add(answerTextField);
        //第四行 频率
        mainPanel.add(new JLabel("频率"));
        frequencyCombobox = new JComboBox<>(new String[]{"未指定","低频","中频","高频"});
        mainPanel.add(frequencyCombobox);
        //第五行 按钮
        saveButton = new JButton("保存");
        cancelButton = new JButton("取消");
        mainPanel.add(saveButton);
        mainPanel.add(cancelButton);
        return mainPanel;
    }

}