/*-
 * ============LICENSE_START=======================================================
 * openECOMP : SDN-C
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights
 * 							reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdnc.rm.comp;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.openecomp.sdnc.lock.comp.LockHelper;
import org.openecomp.sdnc.lock.comp.ResourceLockedException;
import org.openecomp.sdnc.lock.comp.SynchronizedFunction;
import org.openecomp.sdnc.rm.dao.ResourceDao;
import org.openecomp.sdnc.rm.data.AllocationItem;
import org.openecomp.sdnc.rm.data.Resource;
import org.openecomp.sdnc.rm.util.ResourceUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class ReleaseFunction extends SynchronizedFunction {

	@SuppressWarnings("unused")
	private static final Logger log = LoggerFactory.getLogger(ReleaseFunction.class);

	private ResourceDao resourceDao;

	private String resourceSetId, resourceUnionId;

	public ReleaseFunction(LockHelper lockHelper, ResourceDao resourceDao, String resourceSetId,
	        String resourceUnionId, Collection<String> lockNames, int lockTimeout) {
		super(lockHelper, lockNames, lockTimeout);
		this.resourceDao = resourceDao;
		this.resourceSetId = resourceSetId;
		this.resourceUnionId = resourceUnionId;
	}

	@Override
	public void _exec() throws ResourceLockedException {
		List<Resource> resourceList =
		        resourceSetId != null
		                ? resourceDao.getResourceSet(resourceSetId) : resourceDao.getResourceUnion(resourceUnionId);
		for (Resource r : resourceList) {
			boolean updated = false;
			if (r.allocationItems != null) {
				Iterator<AllocationItem> i = r.allocationItems.iterator();
				while (i.hasNext()) {
					AllocationItem ai = i.next();
					if (resourceSetId != null) {
						if (resourceSetId.equals(ai.resourceSetId)) {
							i.remove();
							updated = true;
						}

					} else if (resourceUnionId != null) {

						if (resourceUnionId.equals(ai.resourceUnionId)) {
							i.remove();
							updated = true;
						}

					}
				}
			}
			if (updated) {
				ResourceUtil.recalculate(r);
				resourceDao.saveResource(r);
			}
		}
	}
}