# HandlingHistoryPanel.java

    /*
     * Copyright 2011 Marc Grue.
     *
     * Licensed  under the  Apache License,  Version 2.0  (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.apache.org/licenses/LICENSE-2.0
     *
     * 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 org.qi4j.sample.dcicargo.sample_b.communication.web.tracking;

    import java.util.Date;
    import java.util.List;
    import org.apache.wicket.behavior.AttributeAppender;
    import org.apache.wicket.devutils.stateless.StatelessComponent;
    import org.apache.wicket.markup.html.WebMarkupContainer;
    import org.apache.wicket.markup.html.basic.Label;
    import org.apache.wicket.markup.html.list.ListItem;
    import org.apache.wicket.markup.html.list.ListView;
    import org.apache.wicket.markup.html.panel.Panel;
    import org.apache.wicket.model.IModel;
    import org.apache.wicket.model.Model;
    import org.apache.wicket.model.StringResourceModel;
    import org.apache.wicket.util.value.ValueMap;
    import org.qi4j.sample.dcicargo.sample_b.communication.query.TrackingQueries;
    import org.qi4j.sample.dcicargo.sample_b.communication.query.dto.CargoDTO;
    import org.qi4j.sample.dcicargo.sample_b.communication.query.dto.HandlingEventDTO;
    import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.color.ErrorColor;

    /**
     * Handling history
     *
     * Shows a list of handling events for a cargo.
     *
     * A tracking id string is passed in to retrieve all events matching that cargo.
     */
    @StatelessComponent
    public class HandlingHistoryPanel extends Panel
    {
        public HandlingHistoryPanel( String id, final IModel<CargoDTO> cargoModel, String trackingId )
        {
            super( id );

            IModel<List<HandlingEventDTO>> handlingEventsModel = new TrackingQueries().events( trackingId );

            add( new ListView<HandlingEventDTO>( "handlingEvents", handlingEventsModel )
            {
                @Override
                protected void populateItem( ListItem<HandlingEventDTO> item )
                {
                    HandlingEventDTO event = item.getModelObject();
                    Boolean isLast = item.getIndex() == getList().size() - 1;
                    Boolean isMisdirected = cargoModel.getObject().delivery().get().isMisdirected().get();

                    // Status icon
                    IModel iconName = Model.of( isLast && isMisdirected ? "cross.png" : "tick.png" );
                    item.add( new WebMarkupContainer( "onTrackIcon" ).add( new AttributeAppender( "src", iconName, "" ) ) );

                    // Date
                    item.add( new Label( "completion", new Model<Date>( event.completionTime().get() ) ) );

                    // Event description (data substitution in strings from HandlingHistoryPanel.properties)
                    ValueMap map = new ValueMap();
                    map.put( "type", event.handlingEventType().get().name() );
                    map.put( "location", event.location().get().getString() );
                    if( event.voyage().get() != null )
                    {
                        map.put( "voyage", event.voyage().get().voyageNumber().get().number().get() );
                    }
                    IModel text = new StringResourceModel( "handlingEvent.${type}", this, new Model<ValueMap>( map ) );
                    item.add( new Label( "event", text )
                                  .add( new ErrorColor( isLast && isMisdirected ) )
                                  .setEscapeModelStrings( false ) );
                }
            } );
        }
    }