package org.pentaho.pac.client;

import java.util.ArrayList;

import org.pentaho.pac.client.home.HomePanel;
import org.pentaho.pac.client.i18n.PacLocalizedMessages;
import org.pentaho.pac.client.scheduler.ScheduleCreatorDialog;
import org.pentaho.pac.client.utils.PacImageBundle;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DeckPanel;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Hyperlink;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PushButton;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.ToggleButton;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

public class PentahoAdminConsole extends DockPanel implements ClickListener {
  
  final public static PacLocalizedMessages pacLocalizedMessages = (PacLocalizedMessages)GWT.create(PacLocalizedMessages.class);
  public static final PacLocalizedMessages MSGS = PentahoAdminConsole.getLocalizedMessages();
  
  protected ArrayList<ToggleButton> componentActivationToggleButtons = new ArrayList<ToggleButton>();
  
  protected VerticalPanel leftVerticalPanel = new VerticalPanel();
  protected ConsoleToolbar toolbar = new ConsoleToolbar();
  protected HorizontalPanel topPanel = new HorizontalPanel();
  
  protected DeckPanel deckPanel = new DeckPanel();
  protected AdministrationTabPanel adminTabPanel = new AdministrationTabPanel();
  protected HorizontalPanel horizontalPanel;
  protected Widget widget; 
  
  protected HomePanel homePanel;
  protected CommonTasks commonTasks;
  protected Widget defaultWidget;
  
  public PentahoAdminConsole() {
    horizontalPanel = buildTopPanel() ;
    horizontalPanel.setWidth("100%");    //$NON-NLS-1$
    widget = buildBody();
    widget.setWidth("100%");//$NON-NLS-1$
    widget.setHeight("100%");   //$NON-NLS-1$
    add(horizontalPanel, DockPanel.NORTH);
    setCellWidth(horizontalPanel, "100%"); //$NON-NLS-1$
    add(widget, DockPanel.CENTER);
    setStyleName("main-panel"); //$NON-NLS-1$
    setCellWidth(widget, "100%"); //$NON-NLS-1$
    setCellHeight(widget, "100%"); //$NON-NLS-1$    
    
    activateWidgetOnAdminDeck(getDefaultActiveAdminDeckWidget());
  }
  
  public Widget buildBody() {
    DockPanel centerPanel = new DockPanel();
    commonTasks = new CommonTasks();
    VerticalPanel leftPanel = new VerticalPanel();
    SimplePanel tempPanel = new SimplePanel();
    tempPanel.setStyleName("leftTabPanel_top"); //$NON-NLS-1$
    leftPanel.add(tempPanel);
    
    Label spacer = new Label();
    leftVerticalPanel.add(spacer);
    leftVerticalPanel.setCellHeight(spacer, "20px"); //$NON-NLS-1$
    
    initializeAdminDeck();
    
    adminTabPanel.setWidth("100%"); //$NON-NLS-1$
    adminTabPanel.setHeight("100%"); //$NON-NLS-1$
    adminTabPanel.getDeckPanel().setHeight("100%"); //$NON-NLS-1$
    
    spacer = new Label();
    leftVerticalPanel.add(spacer);
    leftVerticalPanel.setCellHeight(spacer, "50"); //$NON-NLS-1$
    leftVerticalPanel.add(commonTasks);
    spacer = new Label();
    leftVerticalPanel.add(spacer);
    leftVerticalPanel.setCellHeight(spacer, "100%"); //$NON-NLS-1$
    leftVerticalPanel.setStyleName("leftTabPanel"); //$NON-NLS-1$
    
    deckPanel.setStyleName("deckPanel"); //$NON-NLS-1$
    deckPanel.setWidth("100%"); //$NON-NLS-1$
    deckPanel.setHeight("100%"); //$NON-NLS-1$

    DockPanel deckPanelWrapper = new DeckPanelWrapper(deckPanel);
    deckPanelWrapper.setWidth("100%"); //$NON-NLS-1$
    deckPanelWrapper.setHeight("100%"); //$NON-NLS-1$
    
    DockPanel leftPanelWrapper = new LeftPanelWrapper(leftVerticalPanel);
    leftPanelWrapper.setHeight("100%"); //$NON-NLS-1$
    
    centerPanel.add(leftPanelWrapper, DockPanel.WEST);
    centerPanel.add(deckPanelWrapper, DockPanel.CENTER);
    centerPanel.setHeight("100%"); //$NON-NLS-1$
    
    centerPanel.setCellHeight(deckPanelWrapper, "100%"); //$NON-NLS-1$
    centerPanel.setCellWidth(deckPanelWrapper, "100%"); //$NON-NLS-1$
    
    return centerPanel;
  }
  
  public ConsoleToolbar getConsoleToolbar() {
    return this.toolbar;
  }

  public ToggleButton addWidgetToAdminDeck(String toggleButtonLabel, Widget widget) {

    ToggleButton toggleButton = new ToggleButton(toggleButtonLabel);
    toggleButton.setStylePrimaryName("leftToggleButtons"); //$NON-NLS-1$
    toggleButton.addClickListener(this);
    componentActivationToggleButtons.add(toggleButton);
    leftVerticalPanel.add(toggleButton);
    widget.setWidth("100%"); //$NON-NLS-1$
    widget.setHeight("100%"); //$NON-NLS-1$
    deckPanel.add(widget);
    
    return toggleButton;
  }
  
  public HorizontalPanel buildTopPanel() {
    HorizontalPanel topPanel = new HorizontalPanel();
    SimplePanel logo = new SimplePanel();
    logo.setStyleName("logo"); //$NON-NLS-1$
    topPanel.setWidth("100%");  //$NON-NLS-1$
    topPanel.add(logo);
    topPanel.add(toolbar);
    topPanel.setCellWidth(toolbar, "100%"); //$NON-NLS-1$
    return topPanel;
  }
  protected void initTopPanel() {
    SimplePanel logo = new SimplePanel();
    logo.setStyleName("logo"); //$NON-NLS-1$
    topPanel.setWidth("100%");  //$NON-NLS-1$
    topPanel.add(logo);
    topPanel.add(toolbar);
    topPanel.setCellWidth(toolbar, "100%"); //$NON-NLS-1$
  }
  
  public void onClick(Widget sender) {
    if (componentActivationToggleButtons.contains(sender)) {
      ToggleButton toggleButton = (ToggleButton)sender;
      if (!toggleButton.isDown()) {
        toggleButton.setDown(true);
      } else {
        for (int i = 0; i < componentActivationToggleButtons.size(); i++) {
          ToggleButton tmpToggleButton = (ToggleButton)componentActivationToggleButtons.get(i);
          tmpToggleButton.setDown(tmpToggleButton == sender);
        }
        
        int index = componentActivationToggleButtons.indexOf(sender);
        Widget component = deckPanel.getWidget(index);
        activateWidgetOnAdminDeck(component);
      }
    }
  }
  
  protected Widget getDefaultActiveAdminDeckWidget() {
    return defaultWidget;
  }

  protected void setDefaultActiveAdminDeckWidget(Widget w) {
    defaultWidget = w;
  }
  protected void activateWidgetOnAdminDeck(Widget widget) {
    if (widget == adminTabPanel) {
      int selectedTab = adminTabPanel.getTabBar().getSelectedTab();
      if (selectedTab <= 0) {
        adminTabPanel.selectTab(AdministrationTabPanel.ADMIN_USERS_ROLES_TAB_INDEX);
      }
    }
    int componentIndex = deckPanel.getWidgetIndex(widget);
    if (componentIndex >= 0) {
      deckPanel.showWidget(componentIndex);
    }
  }
  
  protected void initializeAdminDeck() {
    homePanel = new HomePanel("http://www.pentaho.com/console_home"); //$NON-NLS-1$
    setDefaultActiveAdminDeckWidget(homePanel);
    ToggleButton tb = addWidgetToAdminDeck(PentahoAdminConsole.MSGS.home(), homePanel);
    addWidgetToAdminDeck(PentahoAdminConsole.MSGS.administration(), adminTabPanel);
    tb.setDown( true );
  }
  //TOP Toolbar
  public class ConsoleToolbar extends HorizontalPanel{
    
    private Label statusLabel;
    private Timer statusTimer = null;
    private SimplePanel serverIcon = new SimplePanel();
    private Image statusIcon = PacImageBundle.getBundle().statusWorkingIcon().createImage();
    HorizontalPanel buttonsPanel = new HorizontalPanel();
    
    public void addImageButton(Image image) {
      buttonsPanel.setStyleName("buttons"); //$NON-NLS-1$
      buttonsPanel.add(image);
    }
    public ConsoleToolbar(){
      super();

      setStyleName("toolbar"); //$NON-NLS-1$
      
      //Left end-cap
      SimplePanel leftCap = new SimplePanel();
      leftCap.setStyleName("toolbar_left"); //$NON-NLS-1$
      add(leftCap);
      this.setCellWidth(leftCap, "5px"); //$NON-NLS-1$
      
      //the body of the toolbar
      HorizontalPanel centerPanel = new HorizontalPanel();
      centerPanel.setStyleName("toolbar_center"); //$NON-NLS-1$
      add(centerPanel);
      
      //Right end-cap
      SimplePanel rightCap = new SimplePanel();
      rightCap.setStyleName("toolbar_right"); //$NON-NLS-1$
      add(rightCap);
      this.setCellWidth(rightCap, "6px"); //$NON-NLS-1$
      
      SimplePanel indicatorsPanel = new SimplePanel();
      indicatorsPanel.setStyleName("toolBarIndicators"); //$NON-NLS-1$
      centerPanel.add(indicatorsPanel);
      
      SimplePanel indicatorsLeft = new SimplePanel();
      indicatorsLeft.setStyleName("indicators_left"); //$NON-NLS-1$
      indicatorsPanel.add(indicatorsLeft);
      
      HorizontalPanel indicatorsRight = new HorizontalPanel();
      indicatorsRight.setStyleName("indicators_right"); //$NON-NLS-1$
      indicatorsLeft.add(indicatorsRight);
     
      statusLabel = new Label(PentahoAdminConsole.MSGS.toolbarStatus());
      statusLabel.setStyleName("indicators_label"); //$NON-NLS-1$

      serverIcon.setStyleName( "biServerDeadIcon" ); //$NON-NLS-1$
      serverIcon.setTitle( PentahoAdminConsole.MSGS.biServerDead() );
      
      HorizontalPanel indicators = new HorizontalPanel();
      indicators.setStyleName("indicators"); //$NON-NLS-1$
      
      indicators.add(statusLabel);
      indicators.add(serverIcon);
      indicators.add(statusIcon);
      
      indicatorsRight.add(indicators);
      Image helpImage = PacImageBundle.getBundle().helpIcon().createImage();
      Image createImage = PacImageBundle.getBundle().refreshIcon().createImage();
      helpImage.addClickListener( new ClickListener() {

        public void onClick(Widget sender) {
          Window.open( "http://www.youtube.com/watch?v=9ibX3TejlZE", "Help", null ); //$NON-NLS-1$ //$NON-NLS-2$
        }
        
      });

      addImageButton(createImage);
      addImageButton(helpImage);
      
      centerPanel.add(buttonsPanel);
      centerPanel.setCellHorizontalAlignment(buttonsPanel, HorizontalPanel.ALIGN_RIGHT);
      centerPanel.setCellVerticalAlignment(buttonsPanel, HorizontalPanel.ALIGN_MIDDLE);
      
      statusTimer = new Timer() {
        public void run()
        {
          PacServiceFactory.getPacService().isBiServerAlive(
              new AsyncCallback() {
                public void onSuccess( Object isAlive ) {
                  serverIcon.setStyleName( "biServerAliveIcon" ); //$NON-NLS-1$
                  serverIcon.setTitle( PentahoAdminConsole.MSGS.biServerAlive() );
                }
                public void onFailure(Throwable caught) {
                  serverIcon.setStyleName( "biServerDeadIcon" ); //$NON-NLS-1$
                  serverIcon.setTitle( PentahoAdminConsole.MSGS.biServerDead() );
                }
              }
            );
        }
      };
      
      PacServiceFactory.getPacService().getBiServerStatusCheckPeriod(
        new AsyncCallback() {
          public void onSuccess( Object oCheckPeriod ) {
            int checkPeriod = ((Integer)oCheckPeriod ).intValue();
            if ( checkPeriod > 0 ) {
              statusTimer.scheduleRepeating( checkPeriod );
            }
          }
          public void onFailure(Throwable caught) {
            // otherwise we don't know what the status check period is, so don't schedule anything
          }
        }
      );
    }
    
    public HorizontalPanel getButtonPanel() {
      return buttonsPanel;
    }
  }
  
  private class CommonTasks extends SimplePanel{
    public CommonTasks(){
      super();
      VerticalPanel vertPanel = new VerticalPanel();
      
      SimplePanel headerPanel = new SimplePanel();
      headerPanel.setStyleName("CommonTasksHeader"); //$NON-NLS-1$
      
      Label header = new Label("Common Tasks");
      header.setStyleName("commonTasksHeaderText"); //$NON-NLS-1$
      headerPanel.add(header);
      vertPanel.add(headerPanel);
      
      VerticalPanel list = new VerticalPanel();
      list.add(new Hyperlink("Link 1 text","Link1")); //$NON-NLS-1$ //$NON-NLS-2$
      list.add(new Hyperlink("Link 2 text","Link2")); //$NON-NLS-1$ //$NON-NLS-2$
      list.add(new Hyperlink("Link 3 text","Link3")); //$NON-NLS-1$ //$NON-NLS-2$
      
      list.setStyleName("CommonTasksLinks"); //$NON-NLS-1$
      vertPanel.add(list);
      
      setStyleName("CommonTasks"); //$NON-NLS-1$
      this.add(vertPanel);
    }
  }
  
  private class DeckPanelWrapper extends DockPanel{
    public DeckPanelWrapper(DeckPanel deck){
      Grid grid = new Grid(3,2);
      grid.setWidth("100%"); //$NON-NLS-1$
      grid.setHeight("100%"); //$NON-NLS-1$
      grid.setCellPadding(0);
      grid.setCellSpacing(0);
      
      grid.getRowFormatter().setStyleName(0,"deckPanel-top-tr"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(0, 0, "deckPanel-n"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(0, 1, "deckPanel-ne"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(1, 0, "deckPanel-c"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(1, 1, "deckPanel-ce"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(2, 0, "deckPanel-s"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(2, 1, "deckPanel-se"); //$NON-NLS-1$
      
      grid.setWidget(1, 0, deck);
      add(grid, DockPanel.CENTER);
    }
  }
  
  private class LeftPanelWrapper extends DockPanel{
    public LeftPanelWrapper(VerticalPanel vertPanel){
      Grid grid = new Grid(3,1);
      grid.setWidth("100%"); //$NON-NLS-1$
      grid.setHeight("100%"); //$NON-NLS-1$
      grid.setCellPadding(0);
      grid.setCellSpacing(0);
      
      grid.getCellFormatter().setStyleName(0, 0, "deckPanel-nw"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(1, 0, "deckPanel-cw"); //$NON-NLS-1$
      grid.getCellFormatter().setStyleName(2, 0, "deckPanel-sw"); //$NON-NLS-1$
      
      grid.setWidget(1, 0, vertPanel);
      add(grid, DockPanel.CENTER);
    }
  }
  
  static public PacLocalizedMessages getLocalizedMessages() {
    return pacLocalizedMessages;
  }
  
  
}