/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed 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_CONSUMER_IMPL_BASE_HEADER
#define PULSAR_CONSUMER_IMPL_BASE_HEADER
#include <pulsar/Message.h>
#include <pulsar/Consumer.h>

namespace pulsar {
class ConsumerImplBase;

typedef boost::weak_ptr<ConsumerImplBase> ConsumerImplBaseWeakPtr;
typedef boost::shared_ptr<ConsumerImplBase> ConsumerImplBasePtr;

class ConsumerImplBase {
public:
    virtual ~ConsumerImplBase(){
    }
    virtual Future<Result, ConsumerImplBaseWeakPtr> getConsumerCreatedFuture() = 0;
    virtual const std::string& getSubscriptionName() const = 0;
    virtual const std::string& getTopic() const  = 0;
    virtual Result receive(Message& msg) = 0;
    virtual Result receive(Message& msg, int timeout) = 0;
    virtual void unsubscribeAsync(ResultCallback callback) = 0;
    virtual void acknowledgeAsync(const MessageId& msgId, ResultCallback callback) = 0;
    virtual void acknowledgeCumulativeAsync(const MessageId& msgId, ResultCallback callback) = 0;
    virtual void closeAsync(ResultCallback callback) = 0;
    virtual void start() = 0;
    virtual void shutdown() = 0;
    virtual bool isClosed() = 0;
    virtual bool isOpen() = 0;
    virtual Result pauseMessageListener() = 0;
    virtual Result resumeMessageListener() = 0;
    virtual void redeliverUnacknowledgedMessages() = 0;
    virtual const std::string& getName() const = 0;
    virtual int getNumOfPrefetchedMessages() const = 0;
    virtual Result getConsumerStats(BrokerConsumerStats& brokerConsumerStats, int partitionIndex = -1) = 0;
};
}
#endif //PULSAR_CONSUMER_IMPL_BASE_HEADER