/*
    * Copyright 2010 James Pether Sörling
    *
    * 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.
   *
   *	$Id$
   *  $HeadURL$
  */
  package com.hack23.cia.service.component.agent.impl.riksdagen.workgenerator;
  
  import javax.jms.Destination;
  import javax.jms.JMSException;
  
  import org.joda.time.DateTime;
  import org.joda.time.format.DateTimeFormat;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.stereotype.Service;
  
  import com.hack23.cia.model.internal.application.data.impl.RiksdagenDataSources;
  import com.hack23.cia.service.component.agent.impl.riksdagen.workers.LoadDocumentWork;
  
  /**
   * The Class RiksdagenDocumentListWorkGeneratorImpl.
   */
  @Service("RiksdagenDocumentListWorkGeneratorImpl")
  final class RiksdagenDocumentListWorkGeneratorImpl extends AbstractRiksdagenDataSourcesWorkGenerator {
  
  	/** The Constant LOGGER. */
  	private static final Logger LOGGER = LoggerFactory.getLogger(RiksdagenDocumentListWorkGeneratorImpl.class);
  
  	/** The document element workdestination. */
  	@Autowired
  	@Qualifier("com.hack23.cia.service.component.agent.impl.riksdagen.workers.LoadDocumentWork")
  	private Destination loadDocumentWorkdestination;
  
  	/**
  	 * Instantiates a new riksdagen document list work generator impl.
  	 */
  	public RiksdagenDocumentListWorkGeneratorImpl() {
  		super(RiksdagenDataSources.DOCUMENT_LIST);
  	}
  
  	@Override
  	public void generateWorkOrders() {
  		try {
  
  			final int startYearForDocumentElement = getImportService().getStartYearForDocumentElement();
  
  			final org.joda.time.format.DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy-MM-dd");
  			DateTime fromDateTime = fmt.parseDateTime(startYearForDocumentElement + "-01-01");
  
  			DateTime loadedWeekDate = fmt.parseDateTime(startYearForDocumentElement + "-01-01");
  
  			final DateTime toDate = new DateTime();
  			while (loadedWeekDate.isBefore(toDate)) {
  				loadedWeekDate = loadedWeekDate.plusWeeks(1);
  
  				getJmsSender().send(loadDocumentWorkdestination,
  						new LoadDocumentWork(fmt.print(fromDateTime), fmt.print(loadedWeekDate)));
  
  				fromDateTime = fromDateTime.plusWeeks(1);
  			}
  
  		} catch (final JMSException e) {
  			LOGGER.warn("error generating work for loading documents", e);
  		}
  	}
  
  }