/*
 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
 * 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 OHOS_DAUDIO_SOURCE_MANAGER_H
#define OHOS_DAUDIO_SOURCE_MANAGER_H

#include <map>
#include <mutex>
#include <thread>

#include "event_handler.h"

#include "daudio_hdi_handler.h"
#include "daudio_source_dev.h"
#include "daudio_source_mgr_callback.h"
#include "idaudio_sink.h"
#include "single_instance.h"

namespace OHOS {
namespace DistributedHardware {
class DAudioSourceManager {
    DECLARE_SINGLE_INSTANCE_BASE(DAudioSourceManager);

public:
    int32_t Init(const sptr<IDAudioIpcCallback> &callback);
    int32_t UnInit();
    int32_t EnableDAudio(const std::string &devId, const std::string &dhId, const std::string &version,
        const std::string &attrs, const std::string &reqId);
    int32_t DisableDAudio(const std::string &devId, const std::string &dhId, const std::string &reqId);
    int32_t HandleDAudioNotify(const std::string &devId, const std::string &dhId, const int32_t eventType,
        const std::string &eventContent);
    int32_t DAudioNotify(const std::string &devId, const std::string &dhId, const int32_t eventType,
        const std::string &eventContent);
    int32_t OnEnableDAudio(const std::string &devId, const std::string &dhId, const int32_t result);
    int32_t OnDisableDAudio(const std::string &devId, const std::string &dhId, const int32_t result);
    int32_t OnHardwareStateChanged(const std::string &devId, const std::string &dhId, const int32_t state);
    int32_t OnDataSyncTrigger(const std::string &devId);
    int32_t LoadAVSenderEngineProvider();
    int32_t UnloadAVSenderEngineProvider();
    int32_t LoadAVReceiverEngineProvider();
    int32_t UnloadAVReceiverEngineProvider();
    IAVEngineProvider *getSenderProvider();
    IAVEngineProvider *getReceiverProvider();

private:
    DAudioSourceManager();
    ~DAudioSourceManager();
    int32_t CreateAudioDevice(const std::string &devId);
    void DeleteAudioDevice(const std::string &devId, const std::string &dhId);
    std::string GetRequestId(const std::string &devId, const std::string &dhId);
    void ClearAudioDev(const std::string &devId);
    void ListenAudioDev();
    void RestoreThreadStatus();
    int32_t DoEnableDAudio(const std::string &args);
    int32_t DoDisableDAudio(const std::string &args);

    typedef struct {
        std::string devId;
        std::shared_ptr<DAudioSourceDev> dev;
        std::map<std::string, std::string> ports;
    } AudioDevice;

private:
    static constexpr const char* DEVCLEAR_THREAD = "sourceClearTh";
    static constexpr const char* LISTEN_THREAD = "sourceListenTh";
    static constexpr int32_t WATCHDOG_INTERVAL_TIME = 20000;
    static constexpr int32_t WATCHDOG_DELAY_TIME = 5000;
    static constexpr size_t SLEEP_TIME = 1000000;
    static constexpr size_t WAIT_HANDLER_IDLE_TIME_US = 10000;

    std::string localDevId_;
    std::mutex devMapMtx_;
    std::map<std::string, AudioDevice> audioDevMap_;
    std::mutex remoteSvrMutex_;
    std::mutex ipcCallbackMutex_;
    std::map<std::string, sptr<IDAudioSink>> sinkServiceMap_;
    sptr<IDAudioIpcCallback> ipcCallback_ = nullptr;
    std::shared_ptr<DAudioSourceMgrCallback> daudioMgrCallback_ = nullptr;
    std::thread devClearThread_;
    std::thread listenThread_;
    IAVEngineProvider *sendProviderPtr_ = nullptr;
    IAVEngineProvider *rcvProviderPtr_ = nullptr;
    void *pSHandler_ = nullptr;
    void *pRHandler_ = nullptr;
    std::atomic<bool> isHicollieRunning_ = true;

    class SourceManagerHandler : public AppExecFwk::EventHandler {
    public:
        SourceManagerHandler(const std::shared_ptr<AppExecFwk::EventRunner> &runner);
        ~SourceManagerHandler() override;
        void ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event) override;
    
    private:
        void EnableDAudioCallback(const AppExecFwk::InnerEvent::Pointer &event);
        void DisableDAudioCallback(const AppExecFwk::InnerEvent::Pointer &event);
        int32_t GetEventParam(const AppExecFwk::InnerEvent::Pointer &event, std::string &eventParam);
    
    private:
        using SourceManagerFunc = void (SourceManagerHandler::*)(const AppExecFwk::InnerEvent::Pointer &event);
        std::map<uint32_t, SourceManagerFunc> mapEventFuncs_;
    };
    std::shared_ptr<SourceManagerHandler> handler_;
};
} // DistributedHardware
} // OHOS
#endif // OHOS_DAUDIO_SINK_MANAGER_H