/**
 *
 * Copyright
 * 2009-2015 Jayway Products AB
 * 2016-2017 Föreningen Sambruk
 *
 * Licensed under AGPL, Version 3.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.gnu.org/licenses/agpl.txt
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package se.streamsource.streamflow.client.ui.administration.forms.definition;

import static se.streamsource.streamflow.client.util.BindingFormBuilder.Fields.TEXTFIELD;

import java.awt.BorderLayout;
import java.util.Observable;
import java.util.Observer;

import javax.swing.JPanel;

import org.jdesktop.application.ApplicationContext;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.injection.scope.Structure;
import org.qi4j.api.injection.scope.Uses;
import org.qi4j.api.property.Property;
import org.qi4j.api.structure.Module;
import org.qi4j.api.value.ValueBuilder;

import se.streamsource.streamflow.api.administration.form.RequiredSignatureValue;
import se.streamsource.streamflow.client.ui.administration.AdministrationResources;
import se.streamsource.streamflow.client.util.BindingFormBuilder;
import se.streamsource.streamflow.client.util.CommandTask;
import se.streamsource.streamflow.client.util.RefreshWhenShowing;
import se.streamsource.streamflow.client.util.Refreshable;
import se.streamsource.streamflow.client.util.StateBinder;
import se.streamsource.streamflow.infrastructure.event.domain.TransactionDomainEvents;
import se.streamsource.streamflow.infrastructure.event.domain.source.TransactionListener;

import com.jgoodies.forms.builder.DefaultFormBuilder;
import com.jgoodies.forms.factories.Borders;
import com.jgoodies.forms.layout.FormLayout;

/**
 * JAVADOC
 */
public class FormSignatureView
      extends JPanel
      implements Observer, Refreshable, TransactionListener
{
   private FormSignatureModel model;
   private StateBinder formValueBinder;
   private Module module;

   public FormSignatureView( @Service ApplicationContext context,
                             @Uses FormSignatureModel model,
                             @Structure Module module)
   {
      super( new BorderLayout() );
      this.module = module;
      setBorder( Borders.createEmptyBorder( "2dlu, 2dlu, 2dlu, 2dlu" ) );

      this.model = model;

      FormLayout formLayout = new FormLayout(
            "200dlu", "" );

      DefaultFormBuilder formBuilder = new DefaultFormBuilder( formLayout, this );
      formBuilder.setBorder( Borders.createEmptyBorder( "2dlu, 2dlu, 2dlu, 2dlu" ) );

      formValueBinder = module.objectBuilderFactory().newObject(StateBinder.class);
      formValueBinder.setResourceMap( context.getResourceMap( getClass() ) );
      RequiredSignatureValue signatureValue = formValueBinder.bindingTemplate( RequiredSignatureValue.class );

      BindingFormBuilder bb = new BindingFormBuilder( formBuilder, formValueBinder );

      bb.appendLine( AdministrationResources.name_label, TEXTFIELD, signatureValue.name() ).
            appendLine( AdministrationResources.description_label, TEXTFIELD, signatureValue.description() );

      formValueBinder.addObserver( this );

      new RefreshWhenShowing( this, this );
   }

   public void refresh()
   {
      model.refresh();
      RequiredSignatureValue value = module.valueBuilderFactory().newValueBuilder(RequiredSignatureValue.class).withPrototype( model.getFormSignature() ).prototype();
      formValueBinder.updateWith( value );
   }

   public void update( Observable observable, Object arg )
   {
      final ValueBuilder<RequiredSignatureValue> builder = module.valueBuilderFactory().newValueBuilder(RequiredSignatureValue.class).withPrototype( model.getFormSignature() );
      final Property property = (Property) arg;
      if (property.qualifiedName().name().equals( "description" ))
      {
         new CommandTask()
         {
            @Override
            public void command()
                  throws Exception
            {
               builder.prototype().description().set( (String) property.get() );
               model.update( builder.newInstance() );
            }
         }.execute();
      } else if (property.qualifiedName().name().equals( "name" ))
      {
         new CommandTask()
         {
            @Override
            public void command()
                  throws Exception
            {
               builder.prototype().name().set( (String) property.get() );
               model.update( builder.newInstance() );
            }
         }.execute();
      }
   }

   public void notifyTransactions( Iterable<TransactionDomainEvents> transactions )
   {

      model.notifyTransactions( transactions );
   }
}