/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.openstack.swift.blobstore.integration;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import com.google.common.io.ByteStreams;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.blobstore.domain.Blob;
import org.jclouds.blobstore.integration.internal.BaseBlobIntegrationTest;
import org.jclouds.blobstore.options.PutOptions;
import org.jclouds.openstack.keystone.v2_0.config.KeystoneProperties;
import org.jclouds.openstack.swift.blobstore.strategy.MultipartUpload;
import org.testng.ITestContext;
import org.testng.SkipException;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import com.google.common.io.Files;
import com.google.common.io.InputSupplier;

import static org.testng.Assert.assertNotEquals;
import static org.testng.Assert.assertTrue;

/**
 * 
 * @author James Murty
 * @author Adrian Cole
 */
@Test(groups = "live")
public class SwiftBlobIntegrationLiveTest extends BaseBlobIntegrationTest {
   /**
    * Use the minimum part size to minimise the file size that we have to
    * upload to get a multipart blob thereby make the test run faster
    */
   private static final long PART_SIZE = MultipartUpload.MIN_PART_SIZE;

   @Override
   protected Properties setupProperties() {
      Properties props = super.setupProperties();
      setIfTestSystemPropertyPresent(props, KeystoneProperties.CREDENTIAL_TYPE);
      props.setProperty("jclouds.mpu.parts.size", String.valueOf(PART_SIZE));
      return props;
   }
   
   private InputSupplier<InputStream> oneHundredOneConstitutions;

   public SwiftBlobIntegrationLiveTest() {
      provider = System.getProperty("test.swift.provider", "swift");
   }

   @Override
   @Test(enabled = false)
   public void testGetTwoRanges() {
      // not supported in swift
   }

   @Override
   @Test
   public void testCreateBlobWithExpiry() throws InterruptedException {
      throw new SkipException("not yet implemented");
   }

    @BeforeClass(groups = { "integration", "live" }, dependsOnMethods = "setupContext")
    @Override
    public void setUpResourcesOnThisThread(ITestContext testContext) throws Exception {
        super.setUpResourcesOnThisThread(testContext);
        oneHundredOneConstitutions = getTestDataSupplier();
    }

   @Override
   protected void checkContentDisposition(Blob blob, String contentDisposition) {
     // This works for Swift Server 1.4.4/SWauth 1.0.3 but was null in previous versions.
     // TODO: Better testing for the different versions.
     super.checkContentDisposition(blob,contentDisposition);
   }

   // not supported in swift
   @Override
   protected void checkContentLanguage(Blob blob, String contentLanguage) {
      assert blob.getPayload().getContentMetadata().getContentLanguage() == null;
      assert blob.getMetadata().getContentMetadata().getContentLanguage() == null;
   }
   
   // swift doesn't support quotes
   @Override
   @DataProvider(name = "delete")
   public Object[][] createData() {
      return new Object[][] { { "normal" }, { "sp ace" }, { "qu?stion" }, { "unic₪de" }, { "path/foo" }, { "colon:" },
               { "asteri*k" }, { "{great<r}" }, { "lesst>en" }, { "p|pe" } };
   }
    
   @Test(groups = { "integration", "live" })
   public void testMultipartChunkedFileStream() throws IOException, InterruptedException {
      String containerName = getContainerName();
      try {
         BlobStore blobStore = view.getBlobStore();
         long countBefore = blobStore.countBlobs(containerName);

         addMultipartBlobToContainer(containerName, "const.txt");

         long countAfter = blobStore.countBlobs(containerName);
         assertNotEquals(countBefore, countAfter,
                         "No blob was created");
         assertTrue(countAfter - countBefore > 1,
                    "A multipart blob wasn't actually created - " +
                    "there was only 1 extra blob but there should be one manifest blob and multiple chunk blobs");
      } finally {
          returnContainer(containerName);
      }
   }

   protected void addMultipartBlobToContainer(String containerName, String key) throws IOException {
      File fileToUpload = createFileBiggerThan(PART_SIZE);

      BlobStore blobStore = view.getBlobStore();
      blobStore.createContainerInLocation(null, containerName);
      Blob blob = blobStore.blobBuilder(key)
         .payload(fileToUpload)
         .build();
      blobStore.putBlob(containerName, blob, PutOptions.Builder.multipart());
   }

   @SuppressWarnings("unchecked")
   private File createFileBiggerThan(long partSize) throws IOException {
      long copiesNeeded = (partSize / getOneHundredOneConstitutionsLength()) + 1;

      InputSupplier<InputStream> temp = ByteStreams.join(oneHundredOneConstitutions);

      for (int i = 0; i < copiesNeeded; i++) {
         temp = ByteStreams.join(temp, oneHundredOneConstitutions);
      }

      File fileToUpload = new File("target/lots-of-const.txt");
      Files.copy(temp, fileToUpload);

      assertTrue(fileToUpload.length() > partSize);
      return fileToUpload;
   }

   @Override
   protected int getIncorrectContentMD5StatusCode() {
      return 422;
   }
}
