/**
 * 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.reference.FormParameters.*;

import java.util.Map;
import java.util.Set;

import javax.ws.rs.POST;
import javax.ws.rs.Path;

import org.jclouds.aws.ec2.AWSEC2AsyncClient;
import org.jclouds.aws.ec2.binders.BindResourceIdsToIndexedFormParams;
import org.jclouds.aws.ec2.binders.BindTagFiltersToIndexedFormParams;
import org.jclouds.aws.ec2.binders.BindTagsToIndexedFormParams;
import org.jclouds.aws.ec2.domain.Tag;
import org.jclouds.aws.ec2.util.TagFilters.FilterName;
import org.jclouds.aws.ec2.xml.DescribeTagsResponseHandler;
import org.jclouds.aws.filters.FormSigner;
import org.jclouds.javax.annotation.Nullable;
import org.jclouds.location.functions.RegionToEndpointOrProviderIfNull;
import org.jclouds.rest.annotations.BinderParam;
import org.jclouds.rest.annotations.EndpointParam;
import org.jclouds.rest.annotations.ExceptionParser;
import org.jclouds.rest.annotations.FormParams;
import org.jclouds.rest.annotations.RequestFilters;
import org.jclouds.rest.annotations.VirtualHost;
import org.jclouds.rest.annotations.XMLResponseParser;
import org.jclouds.rest.functions.ReturnEmptySetOnNotFoundOr404;
import org.jclouds.rest.functions.ReturnVoidOnNotFoundOr404;

import com.google.common.util.concurrent.ListenableFuture;

/**
 * Provides access to EC2 Tags via their REST API.
 * 
 * @author grkvlt@apache.org
 */
@RequestFilters(FormSigner.class)
@FormParams(keys = VERSION, values = AWSEC2AsyncClient.VERSION)
@VirtualHost
public interface TagAsyncClient {
    /**
     * @see TagClient#createTagsInRegion(String, Iterable, Map)
     */
    @POST
    @Path("/")
    @FormParams(keys = ACTION, values = "CreateTags")
    ListenableFuture<Void> createTagsInRegion(@EndpointParam(parser = RegionToEndpointOrProviderIfNull.class) @Nullable String region,
            @BinderParam(BindResourceIdsToIndexedFormParams.class) Iterable<String> resourceIds,
            @BinderParam(BindTagsToIndexedFormParams.class) Map<String, String> tags);

    /**
     * @see TagClient#deleteTagsInRegion(String, Iterable, Map)
     */
    @POST
    @Path("/")
    @FormParams(keys = ACTION, values = "DeleteTags")
    @ExceptionParser(ReturnVoidOnNotFoundOr404.class)
    ListenableFuture<Void> deleteTagsInRegion(@EndpointParam(parser = RegionToEndpointOrProviderIfNull.class) @Nullable String region,
            @BinderParam(BindResourceIdsToIndexedFormParams.class) Iterable<String> resourceIds,
            @BinderParam(BindTagsToIndexedFormParams.class) Map<String, String> tags);

    /**
     * @see TagClient#describeTagsInRegion(String, Map)
     */
    @POST
    @Path("/")
    @FormParams(keys = ACTION, values = "DescribeTags")
    @XMLResponseParser(DescribeTagsResponseHandler.class)
    @ExceptionParser(ReturnEmptySetOnNotFoundOr404.class)
    ListenableFuture<? extends Set<Tag>> describeTagsInRegion(@EndpointParam(parser = RegionToEndpointOrProviderIfNull.class) @Nullable String region,
            @BinderParam(BindTagFiltersToIndexedFormParams.class) Map<FilterName, Iterable<?>> filters);
}
