package class9_2_MapperPersonWriter;

import class4_2_ActionHandlers.ButtonHandler;

import javax.swing.*;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

public class Mapper extends JFrame {

    private final JLabel pictureLabel;
    private List<Person> people = new ArrayList<>();
//    int myInt = 5000.0;
//    double myDouble = 10000;

    public static void main(String[] args) {
        new Mapper();
    }

    public Mapper() {
//        setSize(500, 400);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setLayout(new FlowLayout());

        ImageIcon image = new ImageIcon("map.png");
        pictureLabel = new JLabel(image);
        add(pictureLabel);
        // Note: We won't use a layout since we want to manually position the people.

        JPanel innerPanel = new JPanel();
        innerPanel.setLayout(new GridLayout(1, 1));
        pictureLabel.add(innerPanel);
        innerPanel.setLocation(10, 10);

        JButton button = new JButton("Open locations");
        button.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e) {
                loadPeople();
            }
        });
        innerPanel.add(button);

        // "Homework" Exercise: Get the "Close button"
        // to show up UNDER instead of TO THE RIGHT of the close button.
        JButton closeButton = new JButton("Save locations");
        closeButton.addActionListener(e->savePeople());
//        closeButton.addActionListener(new HandleButtons());
        innerPanel.add(closeButton);

        JButton generateButton = new JButton("Generate location");
        generateButton.addActionListener(e->generatePeople());
        innerPanel.add(generateButton);

        pack();
        innerPanel.setSize(innerPanel.getPreferredSize());
        setVisible(true);
    }

    private class HandleButtons implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            if(e.getSource().equals("Open locations")) {
                loadPeople();
            } else if(e.getSource().equals("Save locations")) {
                savePeople();
            }
        }
    }

    private void loadPeople() {
        JFileChooser chooser = new JFileChooser(".");
        int result = chooser.showOpenDialog(Mapper.this);
        if(result == JFileChooser.APPROVE_OPTION) {
            Path path = chooser.getSelectedFile().toPath();
            try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path.toFile()))) {
                people = (List<Person>) ois.readObject();
            } catch (FileNotFoundException e) {
                e.printStackTrace();  // TODO: Something more meaningful
            } catch (IOException e) {
                e.printStackTrace();  // TODO: Something more meaningful
            } catch (ClassNotFoundException e) {
                e.printStackTrace();  // TODO: Something more meaningful
            } catch (ClassCastException e){
                System.out.println("not what we expected!");
            }
            for(Person person: people) {
                pictureLabel.add(person.getDisplayOfMe());
            }
            repaint();
        }
    }

    private void savePeople() {
        JFileChooser chooser = new JFileChooser(".");
        int result = chooser.showOpenDialog(Mapper.this);
        if(result == JFileChooser.APPROVE_OPTION) {
            Path path = chooser.getSelectedFile().toPath();
            try (OutputStream os = new FileOutputStream(path.toFile())) {
                ObjectOutputStream oos = new ObjectOutputStream(os);
//                oos.writeInt(1);
                oos.writeObject(people);
            } catch (FileNotFoundException e) {
                e.printStackTrace();  // TODO: Something more meaningful
            } catch (IOException e) {
                e.printStackTrace();  // TODO: Something more meaningful
            }
        }
    }

    private void generatePeople() {
        for(int i = 0; i<5; i++) {
            Person p = new Person();
            p.jump(pictureLabel.getPreferredSize().width,
                    pictureLabel.getPreferredSize().height);
            pictureLabel.add(p.getDisplayOfMe());
            people.add(p);
        }
        repaint();
    }
}