/*
    * 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.worldbank.workgenerator.data;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Component;
  import org.springframework.transaction.annotation.Propagation;
  import org.springframework.transaction.annotation.Transactional;
  
  import com.hack23.cia.model.external.worldbank.countries.impl.CountryElement;
  import com.hack23.cia.model.external.worldbank.indicators.impl.IndicatorElement;
  import com.hack23.cia.service.data.api.CountryElementDAO;
  import com.hack23.cia.service.data.api.DataDAO;
  import com.hack23.cia.service.data.api.IndicatorElementDAO;
  
  /**
   * The Class WorldbankImportServiceImpl.
   */
  @Component("WorldbankImportService")
  @Transactional(propagation = Propagation.MANDATORY)
  final class WorldbankImportServiceImpl implements WorldbankImportService {
  
  	/** The country element dao. */
  	@Autowired
  	private CountryElementDAO countryElementDAO;
  
  	/** The data dao. */
  	@Autowired
  	private DataDAO dataDAO;
  
  	/** The indicator element dao. */
  	@Autowired
  	private IndicatorElementDAO indicatorElementDAO;
  
  	/**
  	 * Instantiates a new worldbank import service impl.
  	 */
  	public WorldbankImportServiceImpl() {
  		super();
  	}
  
  	/**
  	 * Creates the map from list.
  	 *
  	 * @param all
  	 *            the all
  	 * @return the map
  	 */
  	private static Map<String, String> createMapFromList(final List<String> all) {
  		final Map<String, String> map = new ConcurrentHashMap<>();
  
  		for (final String documentElement : all) {
  			if (documentElement != null) {
  				map.put(documentElement, documentElement);
  			}
  		}
  		return map;
  	}
  
  	@Override
  	public List<IndicatorElement> getAllIndicators() {
  		return indicatorElementDAO.getAll();
  	}
  
  	@Override
  	public Map<String, String> getWorldBankCountryMap() {
  		final List<String> list = new ArrayList<>();
  		for (final CountryElement countryElement : countryElementDAO.getAll()) {
  			list.add(countryElement.getIso2Code());
  		}
  		return createMapFromList(list);
  	}
  
  	@Override
  	public Map<String, String> getWorldBankDataMap() {
  		return createMapFromList(dataDAO.getIdList());
  	}
  
 	@Override
 	public Map<String, String> getWorldBankIndicatorElementMap() {
 		final List<String> list = new ArrayList<>();
 		for (final IndicatorElement element : indicatorElementDAO.getAll()) {
 			list.add(element.getId());
 		}
 		return createMapFromList(list);
 	}
 
 }