AudioActivityTracker.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_AFML_INCLUDE_AFML_AUDIOACTIVITYTRACKER_H_
#define ALEXA_CLIENT_SDK_AFML_INCLUDE_AFML_AUDIOACTIVITYTRACKER_H_

#include <chrono>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>

#include <acsdkManufactory/Annotated.h>
#include <acsdkShutdownManagerInterfaces/ShutdownNotifierInterface.h>
#include <AVSCommon/AVS/CapabilityConfiguration.h>
#include <AVSCommon/SDKInterfaces/AudioFocusAnnotation.h>
#include <AVSCommon/SDKInterfaces/CapabilityConfigurationInterface.h>
#include <AVSCommon/SDKInterfaces/ContextManagerInterface.h>
#include <AVSCommon/SDKInterfaces/StateProviderInterface.h>
#include <AVSCommon/SDKInterfaces/Endpoints/DefaultEndpointAnnotation.h>
#include <AVSCommon/SDKInterfaces/Endpoints/EndpointCapabilitiesRegistrarInterface.h>
#include <AVSCommon/Utils/RequiresShutdown.h>
#include <AVSCommon/Utils/Threading/Executor.h>

#include "AFML/Channel.h"
#include "AFML/ActivityTrackerInterface.h"

namespace alexaClientSDK {
namespace afml {

class AudioActivityTracker
        : public avsCommon::utils::RequiresShutdown
        , public ActivityTrackerInterface
        , public avsCommon::sdkInterfaces::CapabilityConfigurationInterface
        , public avsCommon::sdkInterfaces::StateProviderInterface {
public:
    static acsdkManufactory::Annotated<avsCommon::sdkInterfaces::AudioFocusAnnotation, ActivityTrackerInterface>
    createAudioActivityTrackerInterface(
        std::shared_ptr<avsCommon::sdkInterfaces::ContextManagerInterface> contextManager,
        std::shared_ptr<acsdkShutdownManagerInterfaces::ShutdownNotifierInterface> shutdownNotifier,
        acsdkManufactory::Annotated<
            avsCommon::sdkInterfaces::endpoints::DefaultEndpointAnnotation,
            avsCommon::sdkInterfaces::endpoints::EndpointCapabilitiesRegistrarInterface>
            defaultEndpointCapabilitiesRegistrar);

    static std::shared_ptr<AudioActivityTracker> create(
        std::shared_ptr<avsCommon::sdkInterfaces::ContextManagerInterface> contextManager);

    void provideState(const avsCommon::avs::NamespaceAndName& stateProviderName, unsigned int stateRequestToken)
        override;

    void notifyOfActivityUpdates(const std::vector<Channel::State>& channelStates) override;

    std::unordered_set<std::shared_ptr<avsCommon::avs::CapabilityConfiguration>> getCapabilityConfigurations() override;

private:
    AudioActivityTracker(std::shared_ptr<avsCommon::sdkInterfaces::ContextManagerInterface> contextManager);

    void doShutdown() override;

    void executeNotifyOfActivityUpdates(const std::vector<Channel::State>& channelStates);

    void executeProvideState(unsigned int stateRequestToken);

    const std::string& executeChannelNameInLowerCase(const std::string& channelName);

    std::shared_ptr<avsCommon::sdkInterfaces::ContextManagerInterface> m_contextManager;

    std::unordered_map<std::string, Channel::State> m_channelStates;

    std::unordered_map<std::string, std::string> m_channelNamesInLowerCase;

    std::unordered_set<std::shared_ptr<avsCommon::avs::CapabilityConfiguration>> m_capabilityConfigurations;

    avsCommon::utils::threading::Executor m_executor;
};

}  // namespace afml
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_AFML_INCLUDE_AFML_AUDIOACTIVITYTRACKER_H_