/**
 * 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.
 */
#ifndef _PULSAR_BINARY_LOOKUP_SERVICE_HEADER_
#define _PULSAR_BINARY_LOOKUP_SERVICE_HEADER_

#include <iostream>
#include <pulsar/Authentication.h>
#include "ConnectionPool.h"
#include "Backoff.h"
#include <lib/LookupService.h>
#pragma GCC visibility push(default)

namespace pulsar {
class LookupDataResult;

class BinaryProtoLookupService : public LookupService {
 public:
    /*
     * constructor
     */
    BinaryProtoLookupService(ConnectionPool& cnxPool, const std::string& serviceUrl);

    Future<Result, LookupDataResultPtr> lookupAsync(const std::string& destinationName);

    Future<Result, LookupDataResultPtr> getPartitionMetadataAsync(const DestinationNamePtr& dn);

 private:

    boost::mutex mutex_;
    uint64_t requestIdGenerator_;

    std::string serviceUrl_;
    ConnectionPool& cnxPool_;

    void sendTopicLookupRequest(const std::string& destinationName, bool authoritative, Result result,
                     const ClientConnectionWeakPtr& clientCnx, LookupDataResultPromisePtr promise);

    void handleLookup(const std::string& destinationName, Result result, LookupDataResultPtr data,
                      const ClientConnectionWeakPtr& clientCnx, LookupDataResultPromisePtr promise);


    void sendPartitionMetadataLookupRequest(const std::string& destinationName, Result result,
                                   const ClientConnectionWeakPtr& clientCnx,
                                   LookupDataResultPromisePtr promise);

    void handlePartitionMetadataLookup(const std::string& destinationName, Result result, LookupDataResultPtr data,
                          const ClientConnectionWeakPtr& clientCnx, LookupDataResultPromisePtr promise);


    uint64_t newRequestId();

};
typedef boost::shared_ptr<BinaryProtoLookupService> BinaryProtoLookupServicePtr;
}

#pragma GCC visibility pop

#endif //_PULSAR_BINARY_LOOKUP_SERVICE_HEADER_