/*
    * 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.text.SimpleDateFormat;
  import java.util.ArrayList;
  import java.util.Calendar;
  import java.util.List;
  import java.util.Locale;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.stream.Collectors;
  
  import org.apache.commons.lang3.time.DateUtils;
  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.model.internal.application.data.committee.impl.RiksdagenVoteDataBallotPartyPeriodSummaryEmbeddedId;
  import com.hack23.cia.model.internal.application.data.committee.impl.ViewRiksdagenVoteDataBallotPartySummaryDaily;
  import com.hack23.cia.service.api.ApplicationManager;
  import com.hack23.cia.service.api.DataContainer;
  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.PartyChartDataManager;
  import com.vaadin.ui.AbstractOrderedLayout;
  
  /**
   * The Class ChartDataManagerImpl.
   */
  @Service
  public final class PartyChartDataManagerImpl extends AbstractChartDataManagerImpl implements PartyChartDataManager {
  
  
  	/** The Constant PARTY_ABSENT. */
  	private static final String PARTY_ABSENT = "Party Absent";
  
  	/** The Constant PARTY_WON. */
  	private static final String PARTY_WON = "Party Won";
  
  	/** The Constant NUMBER_BALLOTS. */
  	private static final String NUMBER_BALLOTS = "Number ballots";
  
  	/** The Constant DD_MMM_YYYY. */
  	private static final String DD_MMM_YYYY = "dd-MMM-yyyy";
  
  	/** The application manager. */
  	@Autowired
  	private ApplicationManager applicationManager;
  
  	/** The chart options. */
  	@Autowired
  	private ChartOptions chartOptions;
  
  
  	/** The party map. */
  	private Map<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> partyMap;
  
  	/**
  	 * Instantiates a new party chart data manager impl.
  	 */
  	public PartyChartDataManagerImpl() {
  		super();
  	}
  
  
  	/**
  	 * Gets the max size view riksdagen vote data ballot party summary daily.
  	 *
  	 * @return the max size view riksdagen vote data ballot party summary daily
  	 */
  	private List<ViewRiksdagenVoteDataBallotPartySummaryDaily> getMaxSizeViewRiksdagenVoteDataBallotPartySummaryDaily() {
  		initPartyMap();
  
  		final Optional<Entry<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>>> first = partyMap.entrySet()
  				.stream().sorted((e1, e2) -> Integer.compare(e2.getValue().size(), e1.getValue().size())
  
  		).findFirst();
  
 		if (first.isPresent()) {
 			return first.get().getValue();
 		} else {
 			return new ArrayList<>();
 		}
 	}
 
 
 	/**
 	 * Gets the party map.
 	 *
 	 * @return the party map
 	 */
 	private Map<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> getPartyMap() {
 		initPartyMap();
 
 		return partyMap;
 	}
 
 
 
 
 
 	/**
 	 * Inits the party map.
 	 */
 	private void initPartyMap() {
 		if (partyMap == null) {
 			final DataContainer<ViewRiksdagenVoteDataBallotPartySummaryDaily, RiksdagenVoteDataBallotPartyPeriodSummaryEmbeddedId> partyBallotSummaryDailyDataContainer = applicationManager
 					.getDataContainer(ViewRiksdagenVoteDataBallotPartySummaryDaily.class);
 
 			partyMap = partyBallotSummaryDailyDataContainer.getAll().parallelStream().filter(Objects::nonNull)
 					.collect(Collectors.groupingBy(t -> t.getEmbeddedId().getParty()));
 		}
 	}
 
 	@Override
 	public void createPartyWinnerChart(final AbstractOrderedLayout content) {
 
 		final Map<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> map = getPartyMap();
 
 		final DataSeries dataSeries = new DataSeries();
 
 		final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DD_MMM_YYYY, Locale.ENGLISH);
 
 		final Series series = new Series();
 
 		for (final Entry<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> entry : map.entrySet()) {
 
 			series.addSeries(new XYseries().setLabel(getPartyName(entry.getKey())));
 
 			dataSeries.newSeries();
 			final List<ViewRiksdagenVoteDataBallotPartySummaryDaily> list = entry.getValue();
 			for (final ViewRiksdagenVoteDataBallotPartySummaryDaily viewRiksdagenVoteDataBallotPartySummaryDaily : list) {
 				if (viewRiksdagenVoteDataBallotPartySummaryDaily != null) {
 					dataSeries.add(
 							simpleDateFormat
 									.format(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()),
 							viewRiksdagenVoteDataBallotPartySummaryDaily.getPartyWonPercentage());
 				}
 			}
 
 		}
 
 		series.addSeries(new XYseries().setLabel(NUMBER_BALLOTS));
 
 		dataSeries.newSeries();
 		final List<ViewRiksdagenVoteDataBallotPartySummaryDaily> list = getMaxSizeViewRiksdagenVoteDataBallotPartySummaryDaily();
 		for (final ViewRiksdagenVoteDataBallotPartySummaryDaily viewRiksdagenVoteDataBallotPartySummaryDaily : list) {
 			if (viewRiksdagenVoteDataBallotPartySummaryDaily != null) {
 				dataSeries.add(
 						simpleDateFormat
 								.format(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()),
 						viewRiksdagenVoteDataBallotPartySummaryDaily.getNumberBallots());
 			}
 		}
 
 		addChart(content,"Party winner by daily ballot average", new DCharts().setDataSeries(dataSeries).setOptions(chartOptions.createOptionsXYDateFloatLegendOutside(series)).show());
 	}
 
 	/**
 	 * Gets the view riksdagen vote data ballot party summary daily.
 	 *
 	 * @param party
 	 *            the party
 	 * @return the view riksdagen vote data ballot party summary daily
 	 */
 	private List<ViewRiksdagenVoteDataBallotPartySummaryDaily> getViewRiksdagenVoteDataBallotPartySummaryDaily(
 			final String party) {
 		initPartyMap();
 
 		return partyMap.get(party);
 	}
 
 
 	@Override
 	public void createPartyLineChart(final AbstractOrderedLayout content,final String partyId) {
 
 		final List<ViewRiksdagenVoteDataBallotPartySummaryDaily> list = getViewRiksdagenVoteDataBallotPartySummaryDaily(
 				partyId);
 
 		final Series series = new Series().addSeries(new XYseries().setLabel(PARTY_WON))
 				.addSeries(new XYseries().setLabel(PARTY_ABSENT));
 
 		final DataSeries dataSeries = new DataSeries().newSeries();
 
 		final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DD_MMM_YYYY, Locale.ENGLISH);
 
 		if (list != null) {
 
 			for (final ViewRiksdagenVoteDataBallotPartySummaryDaily viewRiksdagenVoteDataBallotPartySummaryDaily : list) {
 				if (viewRiksdagenVoteDataBallotPartySummaryDaily != null) {
 					dataSeries.add(
 							simpleDateFormat
 									.format(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()),
 							viewRiksdagenVoteDataBallotPartySummaryDaily.getPartyWonPercentage());
 				}
 			}
 
 			dataSeries.newSeries();
 
 			for (final ViewRiksdagenVoteDataBallotPartySummaryDaily viewRiksdagenVoteDataBallotPartySummaryDaily : list) {
 				if (viewRiksdagenVoteDataBallotPartySummaryDaily != null) {
 					dataSeries.add(
 							simpleDateFormat
 									.format(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()),
 							viewRiksdagenVoteDataBallotPartySummaryDaily.getPartyPercentageAbsent());
 				}
 			}
 		}
 
 		addChart(content,"Party result by", new DCharts().setDataSeries(dataSeries).setOptions(chartOptions.createOptionsPartyLineChart(series)).show());
 	}
 
 
 	@Override
 	public void createPartyGenderChart(final AbstractOrderedLayout content) {
 
 		createPartyBallotChart(content,viewRiksdagenVoteDataBallotPartySummaryDaily -> 100 - viewRiksdagenVoteDataBallotPartySummaryDaily.getPartyAvgPercentageMale().intValue());
 
 	}
 
 
 	@Override
 	public void createPartyAgeChart(final AbstractOrderedLayout content) {
 		createPartyBallotChart(content,viewRiksdagenVoteDataBallotPartySummaryDaily -> (DateUtils.toCalendar(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()).get(Calendar.YEAR)) - viewRiksdagenVoteDataBallotPartySummaryDaily.getPartyAvgBornYear().intValue());
 	}
 
 
 
 	/**
 	 * Creates the party ballot chart.
 	 *
 	 * @param dataValueCalculator
 	 *            the data value calculator
 	 * @return the d charts
 	 */
 	private void createPartyBallotChart(final AbstractOrderedLayout content,final DataValueCalculator dataValueCalculator) {
 		final Map<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> map = getPartyMap();
 
 		final DataSeries dataSeries = new DataSeries();
 
 		final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DD_MMM_YYYY, Locale.ENGLISH);
 
 		final Series series = new Series();
 
 		for (final Entry<String, List<ViewRiksdagenVoteDataBallotPartySummaryDaily>> entry : map.entrySet()) {
 
 			if (!"-".equals(entry.getKey())) {
 				series.addSeries(new XYseries().setLabel(getPartyName(entry.getKey())));
 
 				dataSeries.newSeries();
 				final List<ViewRiksdagenVoteDataBallotPartySummaryDaily> list = entry.getValue();
 				for (final ViewRiksdagenVoteDataBallotPartySummaryDaily viewRiksdagenVoteDataBallotPartySummaryDaily : list) {
 					if (viewRiksdagenVoteDataBallotPartySummaryDaily != null) {
 						dataSeries.add(
 								simpleDateFormat
 										.format(viewRiksdagenVoteDataBallotPartySummaryDaily.getEmbeddedId().getVoteDate()),
 										dataValueCalculator.getDataValue(viewRiksdagenVoteDataBallotPartySummaryDaily));
 					}
 				}
 			}
 		}
 
 		addChart(content,"Party ballot chart", new DCharts().setDataSeries(dataSeries).setOptions(chartOptions.createOptionsXYDateFloatLegendOutside(series)).show());
 	}
 
 	/**
 	 * The Interface DataValueCalculator.
 	 */
 	@FunctionalInterface
 	interface DataValueCalculator {
 
 		/**
 		 * Gets the data value.
 		 *
 		 * @param item
 		 *            the item
 		 * @return the data value
 		 */
 		Object getDataValue(ViewRiksdagenVoteDataBallotPartySummaryDaily item);
 	}
 
 
 }