AbstractAVSConnectionManager.h

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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 ALEXA_CLIENT_SDK_AVSCOMMON_AVS_INCLUDE_AVSCOMMON_AVS_ABSTRACTAVSCONNECTIONMANAGER_H_
#define ALEXA_CLIENT_SDK_AVSCOMMON_AVS_INCLUDE_AVSCOMMON_AVS_ABSTRACTAVSCONNECTIONMANAGER_H_

#include <memory>
#include <mutex>
#include <unordered_set>

#include <AVSCommon/SDKInterfaces/AVSConnectionManagerInterface.h>
#include <AVSCommon/SDKInterfaces/ConnectionStatusObserverInterface.h>

namespace alexaClientSDK {
namespace avsCommon {
namespace avs {

class AbstractAVSConnectionManager : public sdkInterfaces::AVSConnectionManagerInterface {
public:
    using ConnectionStatusObserverInterface = avsCommon::sdkInterfaces::ConnectionStatusObserverInterface;

    AbstractAVSConnectionManager(
        std::unordered_set<std::shared_ptr<ConnectionStatusObserverInterface>> observers =
            std::unordered_set<std::shared_ptr<ConnectionStatusObserverInterface>>());

    virtual ~AbstractAVSConnectionManager() = default;

    void addConnectionStatusObserver(std::shared_ptr<ConnectionStatusObserverInterface> observer) override;
    void removeConnectionStatusObserver(std::shared_ptr<ConnectionStatusObserverInterface> observer) override;

protected:
    void updateConnectionStatus(
        ConnectionStatusObserverInterface::Status status,
        const std::vector<avsCommon::sdkInterfaces::ConnectionStatusObserverInterface::EngineConnectionStatus>&
            engineConnectionStatuses);

    void notifyObservers(bool avsConnectionStatusChanged);

    void clearObservers();

    std::mutex m_mutex;

    ConnectionStatusObserverInterface::Status m_connectionStatus;

    ConnectionStatusObserverInterface::Status m_avsConnectionStatus;

    std::vector<ConnectionStatusObserverInterface::EngineConnectionStatus> m_engineConnectionStatuses;

    std::unordered_set<std::shared_ptr<ConnectionStatusObserverInterface>> m_connectionStatusObservers;
};

}  // namespace avs
}  // namespace avsCommon
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_AVSCOMMON_AVS_INCLUDE_AVSCOMMON_AVS_ABSTRACTAVSCONNECTIONMANAGER_H_