/*
 *  Copyright (C) 2010-2015 Stichting Akvo (Akvo Foundation)
 *
 *  This file is part of Akvo FLOW.
 *
 *  Akvo FLOW is free software: you can redistribute it and modify it under the terms of
 *  the GNU Affero General Public License (AGPL) as published by the Free Software Foundation,
 *  either version 3 of the License or any later version.
 *
 *  Akvo FLOW is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *  See the GNU Affero General Public License included below for more details.
 *
 *  The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>.
 */

package com.gallatinsystems.survey.dao;

import java.util.List;
import java.util.TreeMap;

import com.gallatinsystems.framework.dao.BaseDAO;
import com.gallatinsystems.survey.domain.QuestionOption;
import com.gallatinsystems.survey.domain.Translation;

/**
 * Dao for manipulating questionOptions
 * 
 * @author Christopher Fagiani
 */
public class QuestionOptionDao extends BaseDAO<QuestionOption> {

    private TranslationDao translationDao;

    public QuestionOptionDao() {
        super(QuestionOption.class);
        translationDao = new TranslationDao();
    }

    /**
     * lists all options for a given question id, including the translations (if any)
     *
     * @param questionId
     * @return
     */
    public TreeMap<Integer, QuestionOption> listOptionByQuestion(Long questionId) {
        List<QuestionOption> oList = listByProperty("questionId", questionId,
                "Long", "order", "asc");
        TreeMap<Integer, QuestionOption> map = new TreeMap<Integer, QuestionOption>();
        if (oList != null) {
            int i = 1;
            for (QuestionOption o : oList) {
                o.setTranslationMap(translationDao.findTranslations(
                        Translation.ParentType.QUESTION_OPTION, o.getKey()
                                .getId()));
                i++;
                map.put(o.getOrder() != null ? o.getOrder() : i, o);
            }
        }
        return map;
    }

    /**
     * Lists all options for a given question id
     *
     * @param questionId
     * @return
     */
    public List<QuestionOption> listByQuestionId(Long questionId) {
        return listByProperty("questionId", questionId, "Long", "order", "asc");
    }

    /**
     * Deletes all options associated with a given question
     * 
     * @param questionId
     */
    public void deleteOptionsForQuestion(Long questionId) {
        List<QuestionOption> oList = listByProperty("questionId", questionId,
                "Long");
        if (oList != null) {
            TranslationDao tDao = new TranslationDao();
            for (QuestionOption opt : oList) {
                tDao.deleteTranslationsForParent(opt.getKey().getId(),
                        Translation.ParentType.QUESTION_OPTION);
            }
            super.delete(oList);
        }
    }
}