import javax.swing.*; // Need this to reach Swing components
import java.awt.*; // Need this to reach FlowLayout
import java.awt.event.*; // Need this for listeners and events


/**
 * HW 9 - This assignment is extra credit
 * 
 * This class will create a DLLSoundElement linked list as well
 * as an interface to manipulate a list of songs.
 * 
 * @author Brian O'Connor
 **/
public class JukeBox extends JFrame {
  
  /**
   * The start of the doubly linked list
   **/
  private DLLSoundElement root;
  
  /**
   * The menu bar with File, Options, and Help
   **/
  
  private JPanel outputPanel = new JPanel();
  
  /**
   * The output label initialized to "Welcome to JukeBox
   **/
  private JLabel output = new JLabel();
  
  /**
   * The menu bar with: file, options and help drop-downs
   **/
  private JMenuBar menu = new JMenuBar();
  
  /**
   * The file dropdown
   **/
  private JMenu file = new JMenu("File");
  
  /**
   * The Options dropdown
   **/
  JMenu options = new JMenu("Options");
  
  /**
   * The help dropdown
   **/
  JMenu help = new JMenu("Help");
  
  
  
  /**
   * This method will set up a Doubly Linked List using the root variable
   * 
   * Complete this method
   **/
  public void setUp() {
    
    
    addButtons();
    open();
  }
  
  /**
   * This method will take in a sound parameter and create a DLLSoundElement and add it to the end of the playlist
   * 
   * Complete this method
   * 
   * @param s Sound the song that will be added to the end of the list
   **/
  public void addSong(Sound s) {
    
  }
  
  /**
   * This method will play the current song in the play list
   * 
   * Complete this method
   **/
  public void playCurrent() {
    
  }
  
  /**
   * This method will remove the current song from the playlist and move to the previous song.  If the song is the first in the playlist, don't remove it!
   * 
   * Complete this method
   **/
  public void removeCurrentSong() {
    
  }
  
  /**
   * This method will add buttons to the gui interface
   * 
   * Complete this method
   **/
  public void addButtons() {
    
  }
  
  
  
  /**
   * This method adds the menu items to the frame and opens the gui
   * 
   * No need to edit.
   **/ 
  public void open() {
    // Set up the add song menu item under the file menu drop down
    JMenuItem addSong = new JMenuItem("Add Song To List");
    addSong.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          String fileTemp = FileChooser.pickAFile();
          Sound s;
          if (fileTemp != null) {
            if (fileTemp.endsWith(".wav")) {
              s = new Sound(fileTemp);
              if (s != null) {
                addSong(s);
              }
            } else {
               JOptionPane.showMessageDialog(null, "Please only select Wave files.", "alert", JOptionPane.ERROR_MESSAGE);
            }
          }
        }
      }
    );
    file.add(addSong);
    
    // Set up the remove song menu item under the file menu drop down
    JMenuItem removeSong = new JMenuItem("Remove Song From List");
    removeSong.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          removeCurrentSong();
        }
      }
    );
    file.add(removeSong);
    
    // Set up the remove song menu item under the file menu drop down
    JMenuItem close = new JMenuItem("Exit");
    close.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          System.exit(0);
        }
      }
    );
    file.add(close);
    
    
    // Set up the play menu item under the options menu drop down
    JMenuItem playOption = new JMenuItem("Play");
    playOption.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          playCurrent();
        }
      }
    );
    options.add(playOption);
    
    // Set up the play menu item under the options menu drop down
    JMenuItem playAllOption = new JMenuItem("Play All");
    playAllOption.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          //current.playFromStart();
        }
      }
    );
    //options.add(playAllOption);
    
    // Set up the play menu item under the options menu drop down
    JMenuItem playFromHereOption = new JMenuItem("Play All From Here");
    playFromHereOption.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          //current.playFromMeOn();
        }
      }
    );   
    //options.add(playFromHereOption);
    
    // Set up the help menu item under the help menu drop down
    JMenuItem helpOption = new JMenuItem("Help");
    helpOption.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          Object[] opts = { "OK"};
          JOptionPane.showOptionDialog(null, "Adding Songs:\n\tTo add a song to the playlist, simply select File -> Add Song To List and select the file which you would like to add.\n\nRemoving Songs:\n\tTo remove a song from the playlist, simply select File -> Remove Song From List and the current song will be removed from the list.  \nNote: you cannot remove the first song.\n\n\tFor more information please see the source code in myJukeBox.java in your javasource directory.", "Help", JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, opts, opts[0]);
        }
      }
    );
    help.add(helpOption);
    
    
    // Set up the about menu item under the help menu drop down
    JMenuItem aboutOption = new JMenuItem("About");
    aboutOption.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          Object[] opts2 = { "OK"};
          JOptionPane.showOptionDialog(null, "myJukeBox was programmed by:\n\nBrian O\'Connor\n\nfor use in Georgia Institute of Technology\'s Computer Science course 1316", "About", JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, opts2, opts2[0]);
        }
      }
    );
    help.add(aboutOption);
     
    // add the menu drop downs to the jmenu
    menu.add(file);
    menu.add(options);
    menu.add(help);
    
    output = new JLabel("Welcome to JukeBox");
    
    outputPanel.add(output);
        
    this.getContentPane().add(outputPanel, BorderLayout.SOUTH);
   
    // Set Up the frame
    this.setPreferredSize(new Dimension(600, 200));
    this.pack();
    setTitle("JukeBox");
    setJMenuBar(menu);
    this.setVisible(true);
    this.show();
  }
  
}