package org.litesoft.sandbox.multimodule.groupback.client.back;

import org.litesoft.sandbox.infrastructure.client.*;
import org.litesoft.sandbox.infrastructure.client.widgets.*;
import org.litesoft.sandbox.multimodule.foundation.client.*;
import org.litesoft.sandbox.multimodule.foundation.client.support.*;
import org.litesoft.sandbox.multimodule.foundation.client.widgets.*;

import com.google.gwt.event.dom.client.*;
import com.google.gwt.user.client.ui.*;

public class BackViewImpl implements BackView,
                                     FaceSwitcher
{
    private final DieRotator mDieRotator = new DieRotator( this );
    private final Places mCenter = Places.Back;
    private final Widget mAsWidget;
    private Presenter mPresenter;
    private Long mLuckyId;

    public BackViewImpl()
    {
        String zSection = "BackGroup";
        VerticalPanel zPanel = new VerticalPanel();
        zPanel.setHorizontalAlignment( HasHorizontalAlignment.ALIGN_CENTER );
        zPanel.add( UtilsGwt.horizontal( new Label( "" + mCenter ), new Spacer().width( 10 ), new HelpWidget( zSection, "" + mCenter ) ) );
        zPanel.add( mDieRotator );
        zPanel.add( UtilsGwt.horizontal( new Spacer().width( 50 ), //
                                         new Button( "Home", createHomeClickHandler() ), //
                                         new Spacer().width( 220 ), //
                                         new HelpWidget( zSection, "Lucky" ), //
                                         new Spacer().width( 10 ), //
                                         new Button( "Feeling Lucky", createFeelingLuckyClickHandler() ) ) );
        mAsWidget = zPanel;
    }

    private ClickHandler createHomeClickHandler()
    {
        return new ClickHandler()
        {
            @Override
            public void onClick( ClickEvent event )
            {
                switchTo( Places.Home );
            }
        };
    }

    private ClickHandler createFeelingLuckyClickHandler()
    {
        return new ClickHandler()
        {
            @Override
            public void onClick( ClickEvent event )
            {
                switchTo( PlacesSupport.deNull( mLuckyId, mCenter.getOppositeFace() ) );
            }
        };
    }

    @Override
    public void setPresenter( Presenter pPresenter )
    {
        mDieRotator.setDie( (mPresenter = pPresenter).getDie() );
    }

    @Override
    public void setLuckyId( Long pLuckyId )
    {
        mLuckyId = pLuckyId;
    }

    @Override
    public Widget asWidget()
    {
        return mAsWidget;
    }

    @Override
    public void switchTo( Places pPlace )
    {
        mPresenter.goTo( PlacesSupport.createPlace( pPlace, (long) mCenter.getOppositeFace().ordinal() ) );
    }
}