/**
 * 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.aws.ec2.services;

import static org.jclouds.aws.ec2.options.AWSDescribeImagesOptions.Builder.imageIds;
import static org.jclouds.ec2.options.RegisterImageBackedByEbsOptions.Builder.addNewBlockDevice;
import static org.jclouds.ec2.options.RegisterImageOptions.Builder.withDescription;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;

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

import org.jclouds.aws.ec2.AWSEC2AsyncClient;
import org.jclouds.aws.ec2.AWSEC2Client;
import org.jclouds.compute.BaseVersionedServiceLiveTest;
import org.jclouds.compute.ComputeServiceContextFactory;
import org.jclouds.ec2.domain.Image;
import org.jclouds.ec2.domain.RootDeviceType;
import org.jclouds.ec2.domain.Image.ImageType;
import org.jclouds.logging.log4j.config.Log4JLoggingModule;
import org.jclouds.rest.AuthorizationException;
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.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;
import com.google.inject.Module;

/**
 * Tests behavior of {@code AWSAMIClient}
 * 
 * @author Adrian Cole
 */
@Test(groups = "live", singleThreaded = true, testName = "AWSAMIClientLiveTest")
public class AWSAMIClientLiveTest extends BaseVersionedServiceLiveTest {
   public AWSAMIClientLiveTest() {
      provider = "aws-ec2";
      // TODO: parameterize this.
      imageId = "ami-7ea24a17";
   }
   
   private AWSAMIClient client;
   private static final String DEFAULT_MANIFEST = "adrianimages/image.manifest.xml";
   private static final String DEFAULT_SNAPSHOT = "TODO";
   private RestContext<AWSEC2Client, AWSEC2AsyncClient> context;

   private Set<String> imagesToDeregister = Sets.newHashSet();

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

   public void testDescribeImageNotExists() {
      assertEquals(client.describeImagesInRegion(null, imageIds("ami-cdf819a3")).size(), 0);
   }

   @Test(expectedExceptions = IllegalArgumentException.class)
   public void testDescribeImageBadId() {
      client.describeImagesInRegion(null, imageIds("asdaasdsa"));
   }

   public void testDescribeImages() {
      for (String region : context.getApi().getAvailabilityZoneAndRegionServices().describeRegions().keySet()) {
         Set<Image> allResults = Sets.newLinkedHashSet(client.describeImagesInRegion(region));
         assertNotNull(allResults);
         assert allResults.size() >= 2 : allResults.size();
         Iterator<Image> iterator = allResults.iterator();
         String id1 = iterator.next().getId();
         String id2 = iterator.next().getId();
         Set<Image> twoResults = Sets.newLinkedHashSet(client.describeImagesInRegion(region, imageIds(id1, id2)));
         assertNotNull(twoResults);
         assertEquals(twoResults.size(), 2);
         iterator = twoResults.iterator();
         assertEquals(iterator.next().getId(), id1);
         assertEquals(iterator.next().getId(), id2);
      }
   }

   @Test(enabled = false)
   public void testRegisterImageFromManifest() {
      String imageRegisteredId = client.registerImageFromManifestInRegion(null, "jcloudstest1", DEFAULT_MANIFEST);
      imagesToDeregister.add(imageRegisteredId);
      Image imageRegisteredFromManifest = Iterables.getOnlyElement(client.describeImagesInRegion(null,
            imageIds(imageRegisteredId)));
      assertEquals(imageRegisteredFromManifest.getName(), "jcloudstest1");
      assertEquals(imageRegisteredFromManifest.getImageLocation(), DEFAULT_MANIFEST);
      assertEquals(imageRegisteredFromManifest.getImageType(), ImageType.MACHINE);
      assertEquals(imageRegisteredFromManifest.getRootDeviceType(), RootDeviceType.INSTANCE_STORE);
      assertEquals(imageRegisteredFromManifest.getRootDeviceName(), "/dev/sda1");
   }

   @Test(enabled = false)
   public void testRegisterImageFromManifestOptions() {
      String imageRegisteredWithOptionsId = client.registerImageFromManifestInRegion(null, "jcloudstest2",
            DEFAULT_MANIFEST, withDescription("adrian"));
      imagesToDeregister.add(imageRegisteredWithOptionsId);
      Image imageRegisteredFromManifestWithOptions = Iterables.getOnlyElement(client.describeImagesInRegion(null,
            imageIds(imageRegisteredWithOptionsId)));
      assertEquals(imageRegisteredFromManifestWithOptions.getName(), "jcloudstest2");
      assertEquals(imageRegisteredFromManifestWithOptions.getImageLocation(), DEFAULT_MANIFEST);
      assertEquals(imageRegisteredFromManifestWithOptions.getImageType(), ImageType.MACHINE);
      assertEquals(imageRegisteredFromManifestWithOptions.getRootDeviceType(), RootDeviceType.INSTANCE_STORE);
      assertEquals(imageRegisteredFromManifestWithOptions.getRootDeviceName(), "/dev/sda1");
      assertEquals(imageRegisteredFromManifestWithOptions.getDescription(), "adrian");
   }

   @Test(enabled = false)
   // awaiting EBS functionality to be added to jclouds
   public void testRegisterImageBackedByEBS() {
      String imageRegisteredId = client.registerUnixImageBackedByEbsInRegion(null, "jcloudstest1", DEFAULT_MANIFEST);
      imagesToDeregister.add(imageRegisteredId);
      Image imageRegistered = Iterables
            .getOnlyElement(client.describeImagesInRegion(null, imageIds(imageRegisteredId)));
      assertEquals(imageRegistered.getName(), "jcloudstest1");
      assertEquals(imageRegistered.getImageType(), ImageType.MACHINE);
      assertEquals(imageRegistered.getRootDeviceType(), RootDeviceType.EBS);
      assertEquals(imageRegistered.getRootDeviceName(), "/dev/sda1");
   }

   @Test(enabled = false)
   // awaiting EBS functionality to be added to jclouds
   public void testRegisterImageBackedByEBSOptions() {
      String imageRegisteredWithOptionsId = client.registerUnixImageBackedByEbsInRegion(null, "jcloudstest2",
            DEFAULT_SNAPSHOT, addNewBlockDevice("/dev/sda2", "myvirtual", 1).withDescription("adrian"));
      imagesToDeregister.add(imageRegisteredWithOptionsId);
      Image imageRegisteredWithOptions = Iterables.getOnlyElement(client.describeImagesInRegion(null,
            imageIds(imageRegisteredWithOptionsId)));
      assertEquals(imageRegisteredWithOptions.getName(), "jcloudstest2");
      assertEquals(imageRegisteredWithOptions.getImageType(), ImageType.MACHINE);
      assertEquals(imageRegisteredWithOptions.getRootDeviceType(), RootDeviceType.EBS);
      assertEquals(imageRegisteredWithOptions.getRootDeviceName(), "/dev/sda1");
      assertEquals(imageRegisteredWithOptions.getDescription(), "adrian");
      assertEquals(
            imageRegisteredWithOptions.getEbsBlockDevices().entrySet(),
            ImmutableMap.of("/dev/sda1", new Image.EbsBlockDevice("/dev/sda1", 30, true), "/dev/sda2",
                  new Image.EbsBlockDevice("/dev/sda2", 1, true)).entrySet());
   }

   @Test(enabled = false)
   public void testCreateImage() {
      // TODO client.createImageInRegion(null, name, instanceId, options);
   }

   @Test(enabled = false)
   public void testAddProductCodesToImage() {
      // TODO client.addProductCodesToImageInRegion(null, productCodes, imageId);
   }

   @Test(enabled = false)
   public void testAddLaunchPermissionsToImage() {
      // TODO client.addLaunchPermissionsToImageInRegion(null, userIds, userGroups,
      // imageId);
   }

   @Test(enabled = false)
   public void testRemoveLaunchPermissionsFromImage() {
      // TODO client.removeLaunchPermissionsFromImageInRegion(null, userIds, userGroups,
      // imageId);
   }

   @Test(enabled = false)
   public void testResetLaunchPermissionsOnImage() {
      // TODO client.resetLaunchPermissionsOnImageInRegion(null, imageId);
   }

   @Test(expectedExceptions = AuthorizationException.class)
   public void testGetLaunchPermissionForImage() {
      System.out.println(client.getLaunchPermissionForImageInRegion(null, imageId));
   }

   @Test(expectedExceptions = AuthorizationException.class)
   public void testGetProductCodesForImage() {
      System.out.println(client.getProductCodesForImageInRegion(null, imageId));
   }

   @Test(enabled = false)
   // awaiting ebs support
   public void testGetBlockDeviceMappingsForImage() {
      System.out.println(client.getBlockDeviceMappingsForImageInRegion(null, imageId));
   }

   @AfterTest
   public void deregisterImages() {
      for (String imageId : imagesToDeregister)
         client.deregisterImageInRegion(null, imageId);
   }
}