// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.GWT.client.widgets;

import java.util.*;

import org.litesoft.GWT.client.command.*;
import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.core.typeutils.*;
import org.litesoft.core.typeutils.Objects;
import org.litesoft.uispecification.*;

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

public abstract class DefButtonNamedTypedFactory
{
    public enum BasicForm
    {
        Text, Image
    }

    public enum Form
    {
        Text( BasicForm.Text ), BigText( BasicForm.Text ), Icon( BasicForm.Image ), Picker( BasicForm.Image );

        private BasicForm mBasicForm;

        Form( BasicForm pBasicForm )
        {
            mBasicForm = pBasicForm;
        }

        public BasicForm getBasicForm()
        {
            return mBasicForm;
        }
    }

    protected final DefButtonNamedTyped mTyped;
    private final Form mForm;
    private String mCustomStyle, mEnabledToolTip, mDisabledToolTip; // initialized to null
    private boolean mDisabled = false;
    private List<ClickHandler> mClickHandlers;

    protected DefButtonNamedTypedFactory( DefButtonNamedTyped pTyped, Form pForm )
    {
        Objects.assertNotNull( "Typed", mTyped = pTyped );
        Objects.assertNotNull( "Form", mForm = pForm );
    }

    public final String getName()
    {
        return mTyped.getName();
    }

    public String getSize()
    {
        return mTyped.getSize();
    }

    public final String getType()
    {
        return mTyped.getType();
    }

    public final Form getForm()
    {
        return mForm;
    }

    public final boolean isDisabled()
    {
        return mDisabled;
    }

    public final String getEnabledToolTip()
    {
        return mEnabledToolTip;
    }

    public final String getDisabledToolTip()
    {
        return mDisabledToolTip;
    }

    public final List<ClickHandler> getClickHandlers()
    {
        return (mClickHandlers != null) ? mClickHandlers : Collections.<ClickHandler>emptyList();
    }

    public final DefButtonNamedTypedFactory disabled()
    {
        mDisabled = true;
        return this;
    }

    public final DefButtonNamedTypedFactory add( ClickHandler pClickHandler )
    {
        if ( pClickHandler != null )
        {
            if ( mClickHandlers == null )
            {
                mClickHandlers = new ArrayList<ClickHandler>();
            }
            mClickHandlers.add( pClickHandler );
        }
        return this;
    }

    public final DefButtonNamedTypedFactory add( CommandHandlerAdaptor pAdaptor )
    {
        return add( (ClickHandler) pAdaptor );
    }

    public final DefButtonNamedTypedFactory add( Command pCommand )
    {
        return (pCommand == null) ? this : add( new ClickHandlerCommandAdaptor( pCommand ) );
    }

    public final DefButtonNamedTypedFactory add( ViewDef pTarget )
    {
        Objects.assertNotNull( "Target (ViewDef)", pTarget );
        return add( new ShowScreenCommand( pTarget ) );
    }

    public final DefButtonNamedTypedFactory add( ViewDef pTarget, UriFragmentIdParams pParams )
    {
        Objects.assertNotNull( "Target (ViewDef)", pTarget );
        return add( new ShowScreenCommand( pTarget, pParams ) );
    }

    public final DefButtonNamedTypedFactory add( final ViewDef pTarget, final UriFragmentIdParams.ScreenParamsFactory pFactory )
    {
        Objects.assertNotNull( "Target (ViewDef)", pTarget );
        Objects.assertNotNull( "Factory", pFactory );
        return add( new ClickHandler()
        {
            @Override
            public void onClick( ClickEvent event )
            {
                new ShowScreenCommand( pTarget, pFactory.create( pTarget ) ).execute();
            }
        } );
    }

    public String getCustomStyle()
    {
        return mCustomStyle;
    }

    public DefButtonNamedTypedFactory customStyle( String pCustomStyle )
    {
        mCustomStyle = Strings.noEmpty( pCustomStyle );
        return this;
    }

    public final DefButtonNamedTypedFactory enabledToolTip( String pEnabledToolTip )
    {
        mEnabledToolTip = Strings.noEmpty( pEnabledToolTip );
        return this;
    }

    public final DefButtonNamedTypedFactory disabledToolTip( String pDisabledToolTip )
    {
        mDisabledToolTip = (pDisabledToolTip == null) ? null : pDisabledToolTip.trim();
        return this;
    }

    public final Button create()
    {
        Button zButton = ButtonFactoryFactory.getFactory().create( this );
        for ( ClickHandler zHandler : getClickHandlers() )
        {
            zButton.addClickHandler( zHandler );
        }
        return zButton;
    }

    protected abstract String getFormDescription();

    @Override
    public String toString()
    {
        StringBuilder sb = new StringBuilder();
        sb.append( getType() ).append( "( " ).append( getName() ).append( " )" );
        if ( mDisabled )
        {
            sb.append( " Disabled" );
        }
        if ( mCustomStyle != null )
        {
            sb.append( " + " ).append( mCustomStyle );
        }
        sb.append( ": " ).append( mForm ).append( getFormDescription() );
        if ( (mEnabledToolTip != null) || (mDisabledToolTip != null) )
        {
            if ( mDisabledToolTip == null )
            {
                sb.append( "\n    ToolTip: " ).append( mEnabledToolTip );
            }
            else
            {
                if ( mEnabledToolTip != null )
                {
                    sb.append( "\n    Enabled  ToolTip: " ).append( mEnabledToolTip );
                }
                if ( mDisabledToolTip != null )
                {
                    if ( mDisabledToolTip.length() == 0 )
                    {
                        sb.append( "\n    No Disabled ToolTip" );
                    }
                    else
                    {
                        sb.append( "\n    Disabled ToolTip: " ).append( mDisabledToolTip );
                    }
                }
            }
        }
        return sb.toString();
    }
}