/**
 * Copyright or © or Copr. Ministère Français chargé de la Culture
 * et de la Communication (2013)
 * <p/>
 * contact.gincoculture_at_gouv.fr
 * <p/>
 * This software is a computer program whose purpose is to provide a thesaurus
 * management solution.
 * <p/>
 * This software is governed by the CeCILL license under French law and
 * abiding by the rules of distribution of free software. You can use,
 * modify and/ or redistribute the software under the terms of the CeCILL
 * license as circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 * <p/>
 * As a counterpart to the access to the source code and rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty and the software's author, the holder of the
 * economic rights, and the successive licensors have only limited liability.
 * <p/>
 * In this respect, the user's attention is drawn to the risks associated
 * with loading, using, modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean that it is complicated to manipulate, and that also
 * therefore means that it is reserved for developers and experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systemsand/or
 * data to be ensured and, more generally, to use and operate it in the
 * same conditions as regards security.
 * <p/>
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL license and that you accept its terms.
 */
package fr.mcc.ginco.helpers;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import javax.inject.Inject;

import org.springframework.stereotype.Service;

import fr.mcc.ginco.beans.ThesaurusArray;
import fr.mcc.ginco.beans.ThesaurusArrayConcept;
import fr.mcc.ginco.beans.ThesaurusConcept;
import fr.mcc.ginco.dao.IThesaurusArrayConceptDAO;
import fr.mcc.ginco.dao.IThesaurusConceptDAO;

/**
 * This class is a helper to thesaurus array relative operations
 * 
 * 
 */
@Service("thesaurusArrayHelper")
public class ThesaurusArrayHelper {

	@Inject
	private IThesaurusArrayConceptDAO thesaurusArrayConceptDAO;

	@Inject
	private IThesaurusConceptDAO thesaurusConceptDAO;

	/**
	 * Sets concepts as the concepts of the given array, cleaning removed
	 * concepts.
	 * 
	 * @param array
	 * @param concepts
	 * @return
	 */
	public ThesaurusArray saveArrayConcepts(ThesaurusArray array,
			List<ThesaurusArrayConcept> concepts) {

		Set<ThesaurusArrayConcept> relations = new HashSet<ThesaurusArrayConcept>();
		if (array.getConcepts() == null) {
			array.setConcepts(new HashSet<ThesaurusArrayConcept>());
		} else {
			for (ThesaurusArrayConcept concept : array.getConcepts()) {
				thesaurusArrayConceptDAO.delete(concept);
			}
		}
		array.getConcepts().clear();

		for (ThesaurusArrayConcept concept : concepts) {
			List<String> alreadyAssociatedConcepts = thesaurusArrayConceptDAO
					.getAssociatedConcepts(array.getIdentifier());
			if (!alreadyAssociatedConcepts.contains(concept.getIdentifier()
					.getConceptId())) {
				relations.add(concept);
			}
		}
		array.getConcepts().addAll(relations);

		return array;
	}	
	
	/**
	 * Return the list of ThesaurusConcept of the array identified by arrayId
	 * 
	 * @param array
	 * @return
	 */
	public List<ThesaurusConcept> getArrayConcepts(String arrayId) {
		List<ThesaurusConcept> concepts = new ArrayList<ThesaurusConcept>();
		List<String> associatedConcepts = thesaurusArrayConceptDAO
				.getAssociatedConcepts(arrayId);
		for (String associatedConcept : associatedConcepts) {
			concepts.add(thesaurusConceptDAO.getById(associatedConcept));
		}
		return concepts;
	}

	/**
	 * Returns the list of ThesaurusArrayConcept for the given thesaurus array
	 * 
	 * @param array
	 * @return
	 */
	public List<ThesaurusArrayConcept> getArrayConceptRelations(
			ThesaurusArray array) {
		return thesaurusArrayConceptDAO.getThesaurusArrayConceptsByArray(array);
	}
}