EDIT

// $Id$

/**

* Copyright (C) 2009 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.io.dwca.in;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Set;

import org.apache.log4j.Logger;

import eu.etaxonomy.cdm.io.common.TdwgAreaProvider;

import eu.etaxonomy.cdm.io.dwca.TermUri;

import eu.etaxonomy.cdm.io.stream.StreamItem;

import eu.etaxonomy.cdm.model.common.CdmBase;

import eu.etaxonomy.cdm.model.description.Distribution;

import eu.etaxonomy.cdm.model.description.PresenceAbsenceTerm;

import eu.etaxonomy.cdm.model.description.TaxonDescription;

import eu.etaxonomy.cdm.model.location.NamedArea;

import eu.etaxonomy.cdm.model.reference.Reference;

import eu.etaxonomy.cdm.model.taxon.Taxon;

/**

 * @author a.mueller

 * @date 22.11.2011

 *

 */

public class GbifDistributionCsv2CdmConverter extends PartitionableConverterBase<DwcaDataImportConfiguratorBase, DwcaDataImportStateBase<DwcaDataImportConfiguratorBase>>

						implements IPartitionableConverter<StreamItem, IReader<CdmBase>, String>{

	@SuppressWarnings("unused")

	private static final Logger logger = Logger.getLogger(GbifDistributionCsv2CdmConverter.class);

	private static final String CORE_ID = "coreId";

	/**

	 * @param state

	 */

	public GbifDistributionCsv2CdmConverter(DwcaDataImportStateBase state) {

		super(state);

	}

	@Override

    public IReader<MappedCdmBase> map(StreamItem item ){

		List<MappedCdmBase> resultList = new ArrayList<MappedCdmBase>();

		Map<String, String> csv = item.map;

		Reference sourceReference = state.getTransactionalSourceReference();

		String sourceReferecenDetail = null;

		String id = getSourceId(item);

		Taxon taxon = getTaxonBase(id, item, Taxon.class, state);

		if (taxon != null){

			String locationId = item.get(TermUri.DWC_LOCATION_ID);

			NamedArea area = getAreaByLocationId(item, locationId);

			if (area != null){

				MappedCdmBase  mcb = new MappedCdmBase(item.term, csv.get(TermUri.DWC_LOCATION_ID), area);

				resultList.add(mcb);

			}else if (! config.isExcludeLocality()){

				String locality = item.get(TermUri.DWC_LOCALITY);

				area = getAreaByLocality(item, locality);

				MappedCdmBase  mcb = new MappedCdmBase(item.term, csv.get(TermUri.DWC_LOCALITY), area);

				resultList.add(mcb);

			}

			if (area != null){

				//TODO language, area,

				TaxonDescription desc = getTaxonDescription(taxon, false);

				//TODO

				PresenceAbsenceTerm status = null;

				Distribution distribution = Distribution.NewInstance(area, status);

				desc.addElement(distribution);

				//save taxon

				MappedCdmBase  mcb = new MappedCdmBase(item.term, csv.get(CORE_ID), taxon);

				resultList.add(mcb);

			}

		}else{

			String message = "Can't retrieve taxon from database for id '%s'";

			fireWarningEvent(String.format(message, id), item, 12);

		}

		//return

		return new ListReader<MappedCdmBase>(resultList);

	}

	private NamedArea getAreaByLocality(StreamItem item, String locality) {

		String namespace = TermUri.DWC_LOCALITY.toString();

		List<NamedArea> result = state.get(namespace, locality, NamedArea.class);

		if (result.isEmpty()){

			NamedArea newArea = NamedArea.NewInstance(locality, locality, locality);

			newArea.setTitleCache(locality, true);

			return newArea;

		}

		if (result.size() > 1){

			String message = "There is more than 1 cdm entity matching given locality '%s'. I take an arbitrary one.";

			fireWarningEvent(String.format(message, locality), item, 4);

		}

		return result.iterator().next();

	}

	private NamedArea getAreaByLocationId(StreamItem item, String locationId) {

		String namespace = TermUri.DWC_LOCATION_ID.toString();

		List<NamedArea> result = state.get(namespace, locationId, NamedArea.class);

		if (result.isEmpty()){

			//try to find in cdm

			NamedArea newArea = TdwgAreaProvider.getAreaByTdwgAbbreviation(locationId);

			if (newArea == null){

//				state.getCurrentIO().getTermService().findByAreaCode

			}

			if (newArea == null){

				newArea = NamedArea.NewInstance(locationId, locationId, locationId);

			}

			return newArea;

		}

		if (result.size() > 1){

			String message = "There is more than 1 cdm entity matching given locationId '%s'. I take an arbitrary one.";

			fireWarningEvent(String.format(message, locationId), item, 4);

		}

		return result.iterator().next();

	}

	@Override

	public String getSourceId(StreamItem item) {

		String id = item.get(CORE_ID);

		return id;

	}

//********************** PARTITIONABLE **************************************/

	@Override

	protected void makeForeignKeysForItem(StreamItem item, Map<String, Set<String>> fkMap) {

		String value;

		String key;

		//taxon

		if ( hasValue(value = item.get(CORE_ID))){

			key = TermUri.DWC_TAXON.toString();

			Set<String> keySet = getKeySet(key, fkMap);

			keySet.add(value);

		}

		//areaId

		String locationId = item.get(TermUri.DWC_LOCATION_ID);

		if ( hasValue(value = locationId)){

			key = TermUri.DWC_LOCATION_ID.toString();

			Set<String> keySet = getKeySet(key, fkMap);

			keySet.add(value);

		}

	}

	@Override

	public Set<String> requiredSourceNamespaces() {

		Set<String> result = new HashSet<String>();

 		result.add(TermUri.DWC_TAXON.toString());

 		result.add(TermUri.DWC_LOCATION_ID.toString());

 		return result;

	}

//******************* TO STRING ******************************************/

	@Override

	public String toString(){

		return this.getClass().getName();

	}

}