/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2019-2020. All rights reserved.
 * Description: NxMediaMsg class
 * Author: NxPlayer software group
 * Create: 2019-07-15
 */
#define LOG_NDEBUG 0
#define LOG_TAG    "NP_SysMsg"

#include "NxMediaMsg.h"
#include "NxMediaDefine.h"
#include "NxMediaPlayerManage.h"

namespace android {
NxMediaMsg::NxMediaMsg(int idx)
    : m_looper(nullptr),
      m_isExit(0),
      m_enableNxMediaMsg(true),
      m_instIdx(idx)
{
    Init();
    HLOGI("new NxMediaMsg");
}

NxMediaMsg::~NxMediaMsg()
{
    HLOGI("delete NxMediaMsg");
}

void NxMediaMsg::Init()
{
    m_looper = new (std::nothrow) NxLooper(m_instIdx);
    if (m_looper == nullptr) {
        HLOGE("init NxMediaMsg failure");
        return;
    }

    m_looper->Init();
    status_t ret = run("NxMediaPlayer_NxMsg", PRIORITY_BACKGROUND);
    if (ret != NO_ERROR) {
        HLOGW("init NxMediaMsg success");
    }
}

status_t NxMediaMsg::PostMessage(const sp<NxMessageHandler> &handler, NxMessage &msg)
{
    AutoMutex autoMutex(m_lock);
    if (m_isExit != 0) {
        HLOGE("NxMediaMsg is exit, cannot PostMessage");
        if (msg.mBuffer && msg.mDataLen > 0) {
            delete[] msg.mBuffer;
            msg.mBuffer = nullptr;
        }
        return OK;
    }

    if (m_looper == nullptr) {
        return OK;
    }

    size_t count = mMsgPackages.size();
    NxMessagePackage msgPackage(handler, msg);
    mMsgPackages.insertAt(msgPackage, count, 1);
    m_looper->WakeUp();
    return OK;
}

int NxMediaMsg::ReadMsg(int timeoutMs)
{
    int ret = POLL_WAKE;
    if (m_looper == nullptr) {
        return ret;
    }

    m_looper->Wait(timeoutMs);
    ret = ProcessMessagePackages(ret);
    return ret;
}

status_t NxMediaMsg::EnableNxMediaMsg(bool enable)
{
    AutoMutex autoMutex(m_lock);
    m_enableNxMediaMsg = enable;
    HLOGI("m_enableNxMediaMsg=%d", m_enableNxMediaMsg);
    return OK;
}

int NxMediaMsg::Flush(int timeoutMs)
{
    for (;;) {
        int ret = ReadMsg(timeoutMs);
        if (ret != POLL_CALLBACK) {
            return ret;
        }
    }
}

int NxMediaMsg::ProcessMessagePackages(int result)
{
    int ret = result;
    while (1) {
        m_lock.lock();
        if (mMsgPackages.size() == 0) {
            m_lock.unlock();
            break;
        }
        const NxMessagePackage &messagePackage = mMsgPackages.itemAt(0);
        sp<NxMessageHandler> handler = messagePackage.handler;
        NxMessage message = messagePackage.message;
        mMsgPackages.removeAt(0);
        m_lock.unlock();
        if (handler.get() != nullptr && (m_enableNxMediaMsg || message.mMsg == NX_MSG_EXIT)) {
            handler->HandleMessage(message);
        } else {
            HLOGW("flush msg(%d, %d, %d)", message.mMsg, message.mPara1, message.mPara2);
            if (message.mBuffer && message.mDataLen > 0) {
                delete[] message.mBuffer;
                message.mBuffer = nullptr;
            }
        }

        ret = POLL_CALLBACK;
    }

    return ret;
}

void NxMediaMsg::MessageProcess()
{
    const int pollTimeOut = 50; /* ms */
    const int dumpLogThreshold = 40; /* wait 40 times and every wait about 50 ms to dump heart beat */
    unsigned int poolWakeNum = 0;

    while (m_isExit == 0) {
        int32_t ret = ReadMsg(pollTimeOut);
        switch (ret) {
            case POLL_WAKE:
                if (poolWakeNum++ % dumpLogThreshold == 0) {
                    HLOGD("POLL_WAKE heart beat");
                } else if (poolWakeNum > UINT_MAX - 1) {
                    poolWakeNum = 0;
                }
                continue;
            case POLL_CALLBACK:
                continue;
            default:
                HLOGW("unknown status %d", ret);
                break;
        }
    }

    HLOGI("thread exit loop, flush");
    Flush(pollTimeOut);
}

bool NxMediaMsg::threadLoop()
{
    HLOGD("threadLoop in");
    MessageProcess();
    HLOGD("threadLoop out");
    return OK;
}

NxMessageHandler::~NxMessageHandler()
{
}

NxMediaMsgHandle::NxMediaMsgHandle(sp<NxMediaMsg> &msg, NxMediaPlayerManage *player, int idx)
    : m_nxMsg(msg), m_hmplayer(player), m_instIdx(idx)
{
    HLOGD("new NxMediaMsgHandle");
}

NxMediaMsgHandle::~NxMediaMsgHandle()
{
    HLOGD("delete NxMediaMsgHandle");
}

void NxMediaMsgHandle::SetCbPlayer(NxMediaPlayerManage *player)
{
    HLOGD("SetCbPlayer player");
    Mutex::Autolock l(m_cbLock);
    m_hmplayer = player;
}

void NxMediaMsgHandle::HandleMessage(NxMessage &message)
{
    Mutex::Autolock l(m_cbLock);
    if (message.mMsg == NX_MSG_EXIT) {
        HLOGI("handle send event MSG_EXIT");
        m_nxMsg->m_isExit = true;
    }

    if (message.mBuffer && message.mDataLen > 0) {
        if (m_nxMsg->m_isExit != true && m_hmplayer != nullptr) {
            Parcel parcelObj;
            parcelObj.setData(message.mBuffer, message.mDataLen);
            m_hmplayer->notifyFunc(message.mMsg, message.mPara1, message.mPara2, &parcelObj);
        } else {
            HLOGW("cannot notify msg, m_isExit=%d", m_nxMsg->m_isExit);
        }
        delete[] message.mBuffer;
        message.mBuffer = nullptr;
    } else if (m_nxMsg->m_isExit != true && m_hmplayer != nullptr) {
        m_hmplayer->notifyFunc(message.mMsg, message.mPara1, message.mPara2);
    } else {
        HLOGW("cannot notify msg(%d, %d, %d), m_isExit=%d",
            message.mMsg, message.mPara1, message.mPara1, m_nxMsg->m_isExit);
    }
}
};