/*
 * 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.apache.usergrid.management.export;


import com.google.common.collect.ImmutableSet;
import com.google.common.hash.Hashing;
import com.google.common.io.Files;
import com.google.inject.Module;
import org.jclouds.ContextBuilder;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.blobstore.BlobStoreContext;
import org.jclouds.blobstore.domain.Blob;
import org.jclouds.blobstore.domain.BlobBuilder;
import org.jclouds.blobstore.options.PutOptions;
import org.jclouds.http.config.JavaUrlHttpCommandExecutorServiceModule;
import org.jclouds.logging.log4j.config.Log4JLoggingModule;
import org.jclouds.netty.config.NettyPayloadModule;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.util.Map;
import java.util.Properties;


public class S3ExportImpl implements S3Export {
    Logger logger = LoggerFactory.getLogger( S3ExportImpl.class );

    @Override
    public void copyToS3( File ephemeral, final Map<String,Object> exportInfo, String filename ) {

        /*won't need any of the properties as I have the export info*/
        Map<String,Object> properties = ( Map<String, Object> ) exportInfo.get( "properties" );

        Map<String, Object> storage_info = (Map<String,Object>)properties.get( "storage_info" );

        String bucketName = ( String ) storage_info.get( "bucket_location" );
        String accessId = ( String ) storage_info.get( "s3_access_id");
        String secretKey = ( String ) storage_info.get( "s3_key" );

        Properties overrides = new Properties();
        overrides.setProperty( "s3" + ".identity", accessId );
        overrides.setProperty( "s3" + ".credential", secretKey );

        final Iterable<? extends Module> MODULES = ImmutableSet
                .of( new JavaUrlHttpCommandExecutorServiceModule(), new Log4JLoggingModule(),
                        new NettyPayloadModule() );

        BlobStoreContext context = ContextBuilder.newBuilder( "s3" )
            .credentials(accessId, secretKey)
            .modules(MODULES)
            .overrides(overrides)
            .buildView(BlobStoreContext.class);

        // Create Container (the bucket in s3)
        try {
            BlobStore blobStore = context.getBlobStore();
            if ( blobStore.createContainerInLocation(null, bucketName) ) {
                logger.info( "Created bucket {}", bucketName );
            }
        }
        catch ( Exception ex ) {
            logger.error( "Could not start binary service: {}", ex.getMessage() );
            return;
        }

        try {
            BlobStore blobStore = context.getBlobStore();

            // need this for JClouds 1.7.x:
//            BlobBuilder blobBuilder =
//                blobStore.blobBuilder( filename ).payload( ephemeral ).calculateMD5().contentType( "application/json" );

            // needed for JClouds 1.8.x:
            BlobBuilder blobBuilder = blobStore.blobBuilder( filename )
                .payload( ephemeral )
                .contentMD5(Files.hash( ephemeral, Hashing.md5() ))
                .contentType("application/json");

            Blob blob = blobBuilder.build();

            final String uploadedFile = blobStore.putBlob(
                bucketName, blob, PutOptions.Builder.multipart() );

            logger.info("Uploaded file name={} etag={}", filename, uploadedFile );
        }
        catch ( Exception e ) {
            logger.error( "Error uploading to blob store", e );
        }
    }

}