/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds licenses this file
 * to you 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 org.jclouds.elb;

import static com.google.common.base.Preconditions.checkNotNull;
import static org.testng.Assert.assertNotNull;

import java.util.Properties;
import java.util.Set;

import org.jclouds.Constants;
import org.jclouds.elb.domain.LoadBalancer;
import org.jclouds.loadbalancer.LoadBalancerServiceContextFactory;
import org.jclouds.logging.log4j.config.Log4JLoggingModule;
import org.jclouds.rest.RestContext;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeGroups;
import org.testng.annotations.Test;

import com.google.common.collect.ImmutableSet;
import com.google.inject.Module;

/**
 * Tests behavior of {@code ELBClient}
 * 
 * @author Lili Nader
 */
@Test(groups = "live", sequential = true)
public class ELBClientLiveTest {

   private ELBClient client;
   private RestContext<ELBClient, ELBAsyncClient> context;
   protected String provider = "elb";
   protected String identity;
   protected String credential;
   protected String endpoint;
   protected String apiVersion;
   protected String name = "TestLoadBalancer";

   protected void setupCredentials() {
      identity = checkNotNull(System.getProperty("test." + provider + ".identity"), "test." + provider + ".identity");
      credential = checkNotNull(System.getProperty("test." + provider + ".credential"), "test." + provider
            + ".credential");
      endpoint = System.getProperty("test." + provider + ".endpoint");
     apiVersion = System.getProperty("test." + provider + ".api-version");
   }

   protected Properties setupProperties() {
      Properties overrides = new Properties();
      overrides.setProperty(Constants.PROPERTY_TRUST_ALL_CERTS, "true");
      overrides.setProperty(Constants.PROPERTY_RELAX_HOSTNAME, "true");
      overrides.setProperty(provider + ".identity", identity);
      if (credential != null)
         overrides.setProperty(provider + ".credential", credential);
      if (endpoint != null)
         overrides.setProperty(provider + ".endpoint", endpoint);
      if (apiVersion != null)
         overrides.setProperty(provider + ".api-version", apiVersion);
      return overrides;
   }

   @BeforeGroups(groups = { "live" })
   public void setupClient() {
      setupCredentials();
      Properties overrides = setupProperties();
      context = new LoadBalancerServiceContextFactory().createContext(provider,
            ImmutableSet.<Module> of(new Log4JLoggingModule()), overrides).getProviderSpecificContext();
      client = context.getApi();
   }

   @Test
   public void testCreateLoadBalancer() {
      createLoadBalancerInRegionZone(null,
            checkNotNull(System.getProperty("test." + provider + ".zone"), "test." + provider + ".zone"), name);
   }

   protected void createLoadBalancerInRegionZone(String region, String zone, String name) {
      String dnsName = client.createLoadBalancerInRegion(region, name, "http", 80, 80, zone);
      assertNotNull(dnsName);
      assert (dnsName.startsWith(name));
   }

   @Test(dependsOnMethods = "testCreateLoadBalancer")
   public void testDescribeLoadBalancers() {
      describeLoadBalancerInRegion(null);
   }

   protected void describeLoadBalancerInRegion(String region) {
      Set<? extends LoadBalancer> allResults = client.describeLoadBalancersInRegion(region);
      assertNotNull(allResults);
      assert (allResults.size() >= 1) : region;
   }

   @Test
   public void testDeleteLoadBalancer() {
      deleteLoadBalancerInRegion(null);
   }

   protected void deleteLoadBalancerInRegion(String region) {
      client.deleteLoadBalancerInRegion(region, name);
   }

   @AfterTest
   public void shutdown() {
      context.close();
   }
}
