/* Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *     * Neither the name of The Linux Foundation, nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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/*
Changes from Qualcomm Innovation Center are provided under the following license:
Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
SPDX-License-Identifier: BSD-3-Clause-Clear
*/

#ifndef XTRA_SYSTEM_STATUS_OBS_H
#define XTRA_SYSTEM_STATUS_OBS_H

#include <cinttypes>
#include <MsgTask.h>
#include <LocIpc.h>
#include <LocTimer.h>
#include <stdlib.h>

using namespace std;
using namespace loc_util;
using loc_core::IOsObserver;
using loc_core::IDataItemObserver;
using loc_core::IDataItemCore;

struct StartDgnssNtripParams {
    GnssNtripConnectionParams ntripParams;
    string                    nmea;

    void clear() {
        ntripParams.hostNameOrIp.clear();
        ntripParams.mountPoint.clear();
        ntripParams.username.clear();
        ntripParams.password.clear();
        ntripParams.port = 0;
        ntripParams.useSSL = false;
        ntripParams.requiresNmeaLocation = false;
        nmea.clear();
    }
};

class XtraSystemStatusObserver : public IDataItemObserver {
public :
    // constructor & destructor
    XtraSystemStatusObserver(IOsObserver* sysStatObs, const MsgTask* msgTask);
    inline virtual ~XtraSystemStatusObserver() {
        subscribe(false);
        mIpc.stopNonBlockingListening();
    }

    // IDataItemObserver overrides
    inline virtual void getName(string& name);
    virtual void notify(const unordered_set<IDataItemCore*>& dlist);

    bool updateLockStatus(GnssConfigGpsLock lock);
    bool updateConnections(uint64_t allConnections,
            loc_core::NetworkInfoType* networkHandleInfo, bool roaming);
    bool updateTac(const string& tac);
    bool updateMccMnc(const string& mccmnc);
    bool updateXtraThrottle(const bool enabled);
    inline const MsgTask* getMsgTask() { return mMsgTask; }
    void subscribe(bool yes);
    bool notifySessionStart();
    bool onStatusRequested(int32_t xtraStatusUpdated);
    void startDgnssSource(const StartDgnssNtripParams& params);
    void restartDgnssSource();
    void stopDgnssSource();
    void updateNmeaToDgnssServer(const string& nmea);

private:
    IOsObserver*    mSystemStatusObsrvr;
    const MsgTask* mMsgTask;
    GnssConfigGpsLock mGpsLock;
    LocIpc mIpc;
    uint64_t mConnections;
    loc_core::NetworkInfoType mNetworkHandle[MAX_NETWORK_HANDLES];
    bool mRoaming;
    string mTac;
    string mMccmnc;
    bool mXtraThrottle;
    bool mReqStatusReceived;
    bool mIsConnectivityStatusKnown;
    shared_ptr<LocIpcSender> mXtraSender;
    shared_ptr<LocIpcSender> mDgnssSender;
    string mNtripParamsString;

    class DelayLocTimer : public LocTimer {
        LocIpcSender& mXtraSender;
        LocIpcSender& mDgnssSender;
    public:
        DelayLocTimer(LocIpcSender& xtraSender, LocIpcSender& dgnssSender) :
                mXtraSender(xtraSender), mDgnssSender(dgnssSender) {}
        void timeOutCallback() override {
            LocIpc::send(mXtraSender, (const uint8_t*)"halinit", sizeof("halinit"));
            LocIpc::send(mDgnssSender, (const uint8_t*)"halinit", sizeof("halinit"));
        }
    } mDelayLocTimer;
};

#endif