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/**
 * vertigo - simple java starter
 *
 * Copyright (C) 2013, KleeGroup, [email protected] (http://www.kleegroup.com)
 * KleeGroup, Centre d'affaire la Boursidiere - BP 159 - 92357 Le Plessis Robinson Cedex - France
 *
 * 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.
 */
package io.vertigo.dynamo.domain.model;

import io.vertigo.dynamo.domain.metamodel.DtDefinition;
import io.vertigo.dynamo.domain.metamodel.DtField;
import io.vertigo.dynamo.domain.util.DtObjectUtil;
import io.vertigo.dynamo.store.criteria.Criteria;
import io.vertigo.dynamo.store.criteria.FilterCriteriaBuilder;
import io.vertigo.lang.Assertion;

/**
 * Implementation d'une liste filtré par un Criteria.
 * @author dchallas
 * @param  Type de DtObject
 */
public final class DtListURIForCriteria extends DtListURI {
	private static final long serialVersionUID = 7926630153187124165L;
	private final Integer maxRows;
	private final Criteria criteria;

	/**
	 * Constructeur.
	 *  @param dtDefinition Id de la Définition de DT
	 * @param criteria critere //null = no criteria
	 * @param maxRows Nombre de ligne max //null = ALL
	 */
	public DtListURIForCriteria(final DtDefinition dtDefinition, final Criteria criteria, final Integer maxRows) {
		super(dtDefinition);
		this.criteria = criteria;
		this.maxRows = maxRows;
	}

	/**
	 * @return Criteres de la liste
	 */
	public Criteria getCriteria() {
		return criteria;
	}

	/**
	 * @return Nombre de ligne max
	 */
	public Integer getMaxRows() {
		return maxRows;
	}

	/**
	* Construit automatiquement un Criteria à partir d'un DtObject de critère.
	* Les noms des champs dans l'objet de critère doivent correspondre à ceux de l'objet métier.
	* @param dtoCriteria Objet de critère
	* @return Criteria resultant
	*/
	public static  Criteria createCriteria(final DtObject dtoCriteria) {
		Assertion.checkNotNull(dtoCriteria);
		//-----
		final FilterCriteriaBuilder filterCriteriaBuilder = new FilterCriteriaBuilder<>();
		final DtDefinition dtDefinition = DtObjectUtil.findDtDefinition(dtoCriteria);

		for (final DtField field : dtDefinition.getFields()) {
			if (field.getType() != DtField.FieldType.COMPUTED) {
				final Object value = field.getDataAccessor().getValue(dtoCriteria);
				if (value instanceof String && field.getType() != DtField.FieldType.FOREIGN_KEY) {
					//si String et pas une FK : on met en préfix
					filterCriteriaBuilder.withPrefix(field.getName(), (String) value);
				} else if (value != null) {
					filterCriteriaBuilder.addFilter(field.getName(), value);
				}
			}
			//si null, alors on ne filtre pas
		}
		return filterCriteriaBuilder.build();
	}
}