/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * 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.mso.openstack.utils;

import org.openecomp.mso.cloud.CloudConfig;
import org.openecomp.mso.cloud.CloudConfigFactory;
import org.openecomp.mso.cloud.CloudIdentity;
import org.openecomp.mso.cloud.CloudSite;

import java.lang.reflect.InvocationTargetException;
import org.openecomp.mso.openstack.exceptions.MsoCloudSiteNotFound;


public class MsoTenantUtilsFactory {

	private CloudConfigFactory cloudConfigFactory= new CloudConfigFactory();
	private CloudConfig cloudConfig;
	private String msoPropID;

	public MsoTenantUtilsFactory (String msoPropID) {
		this.msoPropID = msoPropID;
	}

	//based on Cloud IdentityServerType returns ORM or KEYSTONE Utils
	public MsoTenantUtils getTenantUtils(String cloudSiteId) throws MsoCloudSiteNotFound {
		// Obtain the cloud site information
		cloudConfig = cloudConfigFactory.getCloudConfig();
		CloudSite cloudSite = cloudConfig.getCloudSite(cloudSiteId).orElseThrow(
				() -> new MsoCloudSiteNotFound(cloudSiteId));
		return getTenantUtilsByServerType(cloudSite.getIdentityService().getIdentityServerType().toString());
	}

	public MsoTenantUtils getTenantUtilsByServerType(String serverType) {

		MsoTenantUtils tenantU;
		if (CloudIdentity.IdentityServerType.KEYSTONE.toString().equals(serverType)) {
			tenantU = new MsoKeystoneUtils (msoPropID);
		} else {
			try {
				tenantU = CloudIdentity.IdentityServerType.valueOf(serverType).getMsoTenantUtilsClass().getConstructor(String.class).newInstance(msoPropID);
			} catch (InvocationTargetException | InstantiationException | NoSuchMethodException | IllegalAccessException e) {
				throw new RuntimeException("Could not instantiate an MsoTenantUtils class for " + serverType, e);
			}
		}
		return tenantU;
	}
}