/*
 * Created on 17-dic-2005
 * 
 * TODO To change the template for this generated file go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
package org.herac.tuxguitar.gui.actions.note;

import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.TypedEvent;
import org.herac.tuxguitar.gui.TuxGuitar;
import org.herac.tuxguitar.gui.actions.Action;
import org.herac.tuxguitar.gui.editors.tab.Caret;
import org.herac.tuxguitar.gui.editors.tab.TGMeasureImpl;
import org.herac.tuxguitar.gui.editors.tab.TGNoteImpl;
import org.herac.tuxguitar.gui.system.keybindings.KeyBindingConstants;
import org.herac.tuxguitar.gui.undo.undoables.measure.UndoableMeasureGeneric;
import org.herac.tuxguitar.song.models.TGDuration;
import org.herac.tuxguitar.song.models.TGNote;

/**
 * @author julian
 * 
 *         TODO To change the template for this generated type comment go to
 *         Window - Preferences - Java - Code Style - Code Templates
 */
public class ChangeNoteAction extends Action {

  private static final int DELAY = 1000;

  private static long lastAddedStart;

  private static int lastAddedString;

  private static long lastAddedTime;

  private static int lastAddedValue;

  public static final String NAME = "action.note.general.change";

  public ChangeNoteAction() {
    super(NAME, AUTO_LOCK | AUTO_UNLOCK | DISABLE_ON_PLAYING);
  }

  private void addNote(TGMeasureImpl measure, TGDuration duration, long start,
      int value, int string, int velocity) {
    TGNote note = new TGNoteImpl();
    note.setValue(value);
    note.setVelocity(velocity);
    note.setString(string);

    // comienza el undoable
    UndoableMeasureGeneric undoable = UndoableMeasureGeneric.startUndo();
    TuxGuitar.instance().getFileHistory().setUnsavedFile();

    // getSongManager().getMeasureManager().addNote(measure,start,note,duration.clone(getSongManager().getFactory())
    // );
    getSongManager().getMeasureManager().addNote(measure, start, note,
        duration.clone(),
        getEditor().getTablature().getCaret().getVoice());

    // termia el undoable
    addUndoableEdit(undoable.endUndo());

    // reprodusco las notas en el pulso
    getEditor().getTablature().getCaret().getSelectedBeat().play();
  }

  @Override
  protected int execute(TypedEvent e) {
    if (e instanceof KeyEvent) {
      int value = getValueOf(((KeyEvent) e).keyCode);
      if (value >= 0) {
        Caret caret = getEditor().getTablature().getCaret();
        TGMeasureImpl measure = caret.getMeasure();
        TGDuration duration = caret.getDuration();
        int string = caret.getSelectedString().getNumber();
        int velocity = caret.getVelocity();
        long start = caret.getPosition();
        long time = System.currentTimeMillis();

        if (lastAddedStart == start && lastAddedString == string) {
          if (lastAddedValue > 0 && lastAddedValue < 10
              && time < (lastAddedTime + DELAY)) {
            int newValue = ((lastAddedValue * 10) + value);
            if (newValue < 30 || caret.getTrack().isPercussionTrack()) {
              value = newValue;
            }
          }
        }

        this.addNote(measure, duration, start, value, string, velocity);
        this.fireUpdate(measure.getNumber());

        lastAddedValue = value;
        lastAddedStart = start;
        lastAddedString = string;
        lastAddedTime = time;

        return AUTO_UPDATE;
      }
    }
    return 0;
  }

  private int getValueOf(int keyCode) {
    switch (keyCode) {
    case KeyBindingConstants.NUMBER_0:
    case KeyBindingConstants.KEYPAD_0:
      return 0;
    case KeyBindingConstants.NUMBER_1:
    case KeyBindingConstants.KEYPAD_1:
      return 1;
    case KeyBindingConstants.NUMBER_2:
    case KeyBindingConstants.KEYPAD_2:
      return 2;
    case KeyBindingConstants.NUMBER_3:
    case KeyBindingConstants.KEYPAD_3:
      return 3;
    case KeyBindingConstants.NUMBER_4:
    case KeyBindingConstants.KEYPAD_4:
      return 4;
    case KeyBindingConstants.NUMBER_5:
    case KeyBindingConstants.KEYPAD_5:
      return 5;
    case KeyBindingConstants.NUMBER_6:
    case KeyBindingConstants.KEYPAD_6:
      return 6;
    case KeyBindingConstants.NUMBER_7:
    case KeyBindingConstants.KEYPAD_7:
      return 7;
    case KeyBindingConstants.NUMBER_8:
    case KeyBindingConstants.KEYPAD_8:
      return 8;
    case KeyBindingConstants.NUMBER_9:
    case KeyBindingConstants.KEYPAD_9:
      return 9;
    }
    return -1;
  }
}