// C Sc 227: Use this GUI to see your Rolodex in action.
//
// Programmer: Rick Mercer
//
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;

import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class RolodexGUI extends JFrame {

  private static final long serialVersionUID = 1L;

  public static void main(String[] args) {
    RolodexGUI window = new RolodexGUI();
    window.setVisible(true);
  }

  private Rolodex<Entry> entries;
  private DefaultListModel names; // Stores the collection in that can be selected
  private JList nameList; // Stores the collection in that can be selected

  // Graphical Components needed in the inner classes
  private JTextField lastNameSearchField = new JTextField(9);
  private JTextField entryField = new JTextField(20);

  public RolodexGUI() {
    initializeModel();
    layOut();
    registerListeners();
  }

  private void initializeModel() {
    entries = new Rolodex<Entry>();
    entries.addInOrder(new Entry("Li, Ni", "520.555.0001"));
    entries.addInOrder(new Entry("Band, Kim", "620.555.0002"));
    entries.addInOrder(new Entry("Gupta, Sandeep", "520.555.0003"));
    entries.addInOrder(new Entry("Harrison, Devon", "981.555.0004"));
    entries.addInOrder(new Entry("Zee, Kim", "456.555.1234"));
    entries.addInOrder(new Entry("Zee, Regan", "789.555.5467"));
    entries.addInOrder(new Entry("Zee, Channing", "01.011.555.8899"));
    entries.addInOrder(new Entry("Bee, Loren", "520.555.0006"));
    entries.addInOrder(new Entry("Tee, Regan", "768.555.0007"));
    entries.addInOrder(new Entry("Dee, Ty", "752.555.0008"));
    entries.addInOrder(new Entry("Vee, Chris", "125.555.0009"));
    entries.addInOrder(new Entry("Xu, Li", "520.555.0010"));
    entries.addInOrder(new Entry("Ee, Pat", "658.555.0011"));
    entries.addInOrder(new Entry("Gee, Kerry", "219.555.0012"));
    entries.addInOrder(new Entry("Jay, Sam", "520.555.0013"));
    entries.addInOrder(new Entry("Kay, Joe", "520.555.0014"));
    entries.addInOrder(new Entry("El, Bernie", "520.555.0015"));
    entries.addInOrder(new Entry("Mmm, Frances", "520.555.0016"));
    entries.addInOrder(new Entry("Oo, Ali", "520.555.0017"));
    entries.addInOrder(new Entry("Pea, Angel", "756.555.0018"));
    entries.addInOrder(new Entry("Ar, Britt", "555.0019"));
    entries.addInOrder(new Entry("Queue, Brook", "520.555.0020"));
    entries.addInOrder(new Entry("Dubya, Casey", "520.555.0021"));
    entries.addInOrder(new Entry("Q, Oh7", "520.555.4321"));

    names = new DefaultListModel();
    for (int j = 0; j < entries.size(); j++) {
      names.addElement(entries.get(j).getName());
    }
    nameList = new JList(names);
  }

  private void layOut() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setTitle("Rolodex");
    setSize(280, 300);
    setLocation(100, 100);
    Container cp = this.getContentPane();
    JPanel all = new JPanel();
    entryField.setEditable(false);
    entryField.setFont(new Font("Sans Serif", Font.BOLD, 13));
    entryField.setPreferredSize(new Dimension(140, 26));
    entryField.setForeground(Color.BLUE);
    all.add(entryField);
    nameList.setSelectedIndex(0);
    setEntryField(0); // Show names and phone number of first in list
    JScrollPane sb = new JScrollPane(nameList);
    sb.setPreferredSize(new Dimension(240, 180));
    all.add(sb);
    all.add(new JLabel("Search by Last Name"));
    all.add(lastNameSearchField);
    cp.add(all);
  }

  private void registerListeners() {
    lastNameSearchField.getDocument().addDocumentListener(new NameSearchListener());
    nameList.addListSelectionListener(new ListClickedListener());
  }

  private class NameSearchListener implements DocumentListener {

    public void changedUpdate(DocumentEvent arg0) {
    }

    public void removeUpdate(DocumentEvent arg0) {
      doSearch();
    }

    public void insertUpdate(DocumentEvent arg0) {
      doSearch();
    }

    public void doSearch() {
      entryField.setText("");

      String currText = lastNameSearchField.getText().toLowerCase();
      int index = 0;
      for (; index < names.size(); index++) {
        if (currText.compareTo(((String) names.get(index)).toLowerCase()) <= 0)
          break;
      }
      int currentSelection = nameList.getSelectedIndex();
      setEntryField(currentSelection);
      nameList.setSelectedIndex(index);
      nameList.ensureIndexIsVisible(index);
    }
  }

  private class ListClickedListener implements ListSelectionListener {

    public void valueChanged(ListSelectionEvent arg0) {
      entryField.setText(entries.get(nameList.getSelectedIndex())
          .getPhoneNumber());
      int currentSelection = nameList.getSelectedIndex();
      setEntryField(currentSelection);
    }
  }

  private void setEntryField(int currentSelection) {
    Entry currentEntry = entries.get(currentSelection);
    String name = currentEntry.getName();
    int space = name.indexOf(" ", -1);
    name = name.substring(space + 1) + " " + name.substring(0, space - 1);
    entryField.setText(name + ":  " + currentEntry.getPhoneNumber());
  }
}