/*
    * Copyright 2014 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.web.impl.ui.application.views.common.chartfactory.impl;
  
  import java.util.List;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.stream.Collectors;
  
  import org.dussan.vaadin.dcharts.DCharts;
  import org.dussan.vaadin.dcharts.base.elements.XYseries;
  import org.dussan.vaadin.dcharts.data.DataSeries;
  import org.dussan.vaadin.dcharts.options.Series;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  
  import com.hack23.cia.service.external.esv.api.EsvApi;
  import com.hack23.cia.service.external.esv.api.GovernmentBodyAnnualSummary;
  import com.hack23.cia.web.impl.ui.application.views.common.chartfactory.api.ChartOptions;
  import com.hack23.cia.web.impl.ui.application.views.common.chartfactory.api.GovernmentBodyChartDataManager;
  import com.vaadin.ui.AbstractOrderedLayout;
  
  /**
   * The Class GovernmentBodyChartDataManagerImpl.
   */
  @Service
  public final class GovernmentBodyChartDataManagerImpl extends AbstractChartDataManagerImpl implements GovernmentBodyChartDataManager {
  
  	/** The Constant ANNUAL_HEADCOUNT_SUMMARY_ALL_GOVERNMENT_BODIES. */
  	private static final String ANNUAL_HEADCOUNT_SUMMARY_ALL_GOVERNMENT_BODIES = " Annual headcount summary, all government bodies";
  
  	/** The Constant ANNUAL_HEADCOUNT_SUMMARY. */
  	private static final String ANNUAL_HEADCOUNT_SUMMARY = " Annual headcount summary";
  
  	/** The Constant ANNUAL_HEADCOUNT_ALL_MINISTRIES. */
  	private static final String ANNUAL_HEADCOUNT_ALL_MINISTRIES = "Annual headcount, all ministries";
  
  	/** The Constant FIRST_OF_JAN. */
  	private static final String FIRST_OF_JAN = "01-JAN-";
  
  	/** The esv api. */
  	@Autowired
  	private EsvApi esvApi;
  
  	/** The chart options. */
  	@Autowired
  	private ChartOptions chartOptions;
  
  	/**
  	 * Instantiates a new government body chart data manager impl.
  	 */
  	public GovernmentBodyChartDataManagerImpl() {
  		super();
  	}
  
  	@Override
  	public void createGovernmentBodyHeadcountChart(final AbstractOrderedLayout content, final String name) {
  		final Map<Integer, GovernmentBodyAnnualSummary> map = esvApi.getDataPerGovernmentBody(name);
  
  		final DataSeries dataSeries = new DataSeries();
  
  		final Series series = new Series();
  
  		series.addSeries(new XYseries().setLabel(name));
  
  		dataSeries.newSeries();
  
  		for (final Entry<Integer, GovernmentBodyAnnualSummary> entry : map.entrySet()) {
  			final GovernmentBodyAnnualSummary item = entry.getValue();
  			if (entry.getKey() != null && item != null && item.getHeadCount() > 0) {
  				dataSeries.add(FIRST_OF_JAN + item.getYear(), item.getHeadCount());
  			}
  		}
  
  		addChart(content, name + ANNUAL_HEADCOUNT_SUMMARY, new DCharts().setDataSeries(dataSeries)
  				.setOptions(chartOptions.createOptionsXYDateFloatLogYAxisLegendOutside(series)).show());
  	}
  
  	@Override
  	public void createMinistryGovernmentBodyHeadcountSummaryChart(final AbstractOrderedLayout content,
  			final String name) {
  		final Map<Integer, List<GovernmentBodyAnnualSummary>> map = esvApi.getDataPerMinistry(name);
  		final List<String> governmentBodyNames = esvApi.getGovernmentBodyNames(name);
 
 		final DataSeries dataSeries = new DataSeries();
 		final Series series = new Series();
 
 		for (final String govBodyName : governmentBodyNames) {
 
 			series.addSeries(new XYseries().setLabel(govBodyName));
 
 			dataSeries.newSeries();
 
 			for (final Entry<Integer, List<GovernmentBodyAnnualSummary>> entry : map.entrySet()) {
 
 				final List<GovernmentBodyAnnualSummary> item = entry.getValue();
 				final Integer totalHeadcount = item.stream().filter(p -> p.getName().equalsIgnoreCase(govBodyName))
 						.collect(Collectors.summingInt(GovernmentBodyAnnualSummary::getHeadCount));
 
 				if (entry.getKey() != null && item != null && totalHeadcount > 0) {
 					dataSeries.add(FIRST_OF_JAN + entry.getKey(), totalHeadcount);
 				}
 			}
 		}
 
 		addChart(content, name + ANNUAL_HEADCOUNT_SUMMARY_ALL_GOVERNMENT_BODIES,
 				new DCharts().setDataSeries(dataSeries)
 						.setOptions(chartOptions.createOptionsXYDateFloatLogYAxisLegendOutside(series)).show());
 
 	}
 
 	@Override
 	public void createMinistryGovernmentBodyHeadcountSummaryChart(final AbstractOrderedLayout content) {
 		final Map<Integer, List<GovernmentBodyAnnualSummary>> map = esvApi.getData();
 		final List<String> ministryNames = esvApi.getMinistryNames();
 
 		final DataSeries dataSeries = new DataSeries();
 
 		final Series series = new Series();
 
 		for (final String ministryName : ministryNames) {
 
 			series.addSeries(new XYseries().setLabel(ministryName));
 
 			dataSeries.newSeries();
 
 			for (final Entry<Integer, List<GovernmentBodyAnnualSummary>> entry : map.entrySet()) {
 
 				final List<GovernmentBodyAnnualSummary> item = entry.getValue();
 				final Integer totalHeadcount = item.stream().filter(p -> p.getMinistry().equalsIgnoreCase(ministryName))
 						.collect(Collectors.summingInt(GovernmentBodyAnnualSummary::getHeadCount));
 
 				if (entry.getKey() != null && item != null && totalHeadcount > 0) {
 					dataSeries.add(FIRST_OF_JAN + entry.getKey(), totalHeadcount);
 				}
 			}
 		}
 
 		addChart(content, ANNUAL_HEADCOUNT_ALL_MINISTRIES, new DCharts().setDataSeries(dataSeries)
 				.setOptions(chartOptions.createOptionsXYDateFloatLogYAxisLegendOutside(series)).show());
 
 	}
 
 }