import java.io.*;
import java.io.File;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.ImageIcon;
import java.awt.image.*;
import javax.imageio.ImageIO;
import javax.swing.JFileChooser;

public class Controls extends JPanel implements Observer
{
  private Model model;
  private JSlider rating;
  private JRadioButton grid;
  private JRadioButton list;
  private ButtonGroup layouts;
  private Image starImg;
  private Image gridImg;
  private Image listImg;
  private Image folderImg;
  private ImageIcon starIcon;
  private ImageIcon gridIcon;
  private ImageIcon listIcon;
  private ImageIcon folderIcon;
  private JButton fileButton;
  private JFileChooser fileChooser;

  // Bob the Builder this shit
  public Controls(Model model)
  {
    // Hook up this observer so that it will be notified when the model
    // changes.
    this.model = model;
    this.setBackground(Color.cyan);
    this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
    this.setPreferredSize(new Dimension(1280,75));
    this.setMinimumSize(new Dimension(320, 75));
    
    try
    {
      this.starImg = ImageIO.read(new File("src/main/resources/star.png"));
    } catch(IOException e) {}

    try
    {
      this.gridImg = ImageIO.read(new File("src/main/resources/grid.png"));
    } catch(IOException e) {}

    try
    {
      this.listImg = ImageIO.read(new File("src/main/resources/list.png"));
    } catch(IOException e) {}
    
    try
    {
      this.folderImg = ImageIO.read(new File("src/main/resources/folder.jpg"));
    } catch(IOException e) {}
    
    
    this.starImg = starImg.getScaledInstance(50, 50,  java.awt.Image.SCALE_SMOOTH);
    this.gridImg = gridImg.getScaledInstance(50, 50,  java.awt.Image.SCALE_SMOOTH);
    this.listImg = listImg.getScaledInstance(50, 50,  java.awt.Image.SCALE_SMOOTH);
    this.folderImg = folderImg.getScaledInstance(50, 50,  java.awt.Image.SCALE_SMOOTH);
    this.starIcon = new ImageIcon(starImg);
    this.gridIcon = new ImageIcon(gridImg);
    this.listIcon = new ImageIcon(listImg);
    this.folderIcon = new ImageIcon(folderImg);
    
    this.grid = new JRadioButton(gridIcon, true);
    grid.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        if (!(grid.isSelected(layouts)))
        {
          grid.setSelected(layouts, true);
          list.setSelected(layouts, false);
          model.switchLayout();
        }
      }
    });
    
    this.list = new JRadioButton(listIcon, false);
    list.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        if (!(list.isSelected(layouts)))
        {
          list.setSelected(layouts, true);
          grid.setSelected(layouts, false);
          model.switchLayout();
        }
      }
    });
    
    this.layouts = new ButtonGroup();
    layouts.add(grid);
    layouts.add(list);
    grid.setSelected(layouts, true);
    list.setSelected(layouts, false);
    
    this.fileChooser = new JFileChooser();
    this.fileButton = new JButton(folderIcon);
    fileButton.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        int retval = fileChooser.showOpenDialog(null);
        
        if (retval == JFileChooser.APPROVE_OPTION)
        {
          File file = fileChooser.getSelectedFile();
          if (file.isFile())
          {
            model.newPic(file.getAbsolutePath(), file.getName(), file.length(), file.lastModified());
          }
        }
      }
    });
    
    this.rating = new JSlider(0, 5, 0);
    rating.addChangeListener(new ChangeListener()
    {
      public void stateChanged(ChangeEvent e)
      {
        model.changeFilter(rating.getValue());
      }
    });
    this.rating.setPreferredSize(new Dimension(280, 75));

    this.add(grid);
    this.add(list);
    this.add(rating);
    this.add(fileButton);
    model.addObserver(this);
  }

  public void update(Object observable)
  {
    revalidate();
    repaint();
  }
}