/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *                                                                         *
 * Copyright (C) 2019 Simon Stürz <simon.stuerz@nymea.io>                  *
 *                                                                         *
 * This file is part of libnymea-networkmanager.                           *
 *                                                                         *
 *  This library is free software; you can redistribute it and/or          *
 *  modify it under the terms of the GNU Lesser General Public             *
 *  License as published by the Free Software Foundation; either           *
 *  version 2.1 of the License, or (at your option) any later version.     *
 *                                                                         *
 *  This library is distributed in the hope that it will be useful,        *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU      *
 *  Lesser General Public License for more details.                        *
 *                                                                         *
 *  You should have received a copy of the GNU Lesser General Public       *
 *  License along with this library; If not, see                           *
 *  <http://www.gnu.org/licenses/>.                                        *
 *                                                                         *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#ifndef BLUETOOTHSERVER_H
#define BLUETOOTHSERVER_H

#include <QObject>
#include <QTimer>
#include <QObject>
#include <QPointer>
#include <QLowEnergyHandle>
#include <QLowEnergyService>
#include <QBluetoothLocalDevice>
#include <QLowEnergyController>
#include <QLowEnergyServiceData>
#include <QLowEnergyCharacteristic>
#include <QLowEnergyDescriptorData>
#include <QLowEnergyAdvertisingData>
#include <QLowEnergyCharacteristicData>
#include <QLowEnergyConnectionParameters>
#include <QLowEnergyAdvertisingParameters>

#include "networkservice.h"
#include "wirelessservice.h"

class NetworkManager;

class BluetoothServer : public QObject
{
    Q_OBJECT
public:
    explicit BluetoothServer(NetworkManager *networkManager);
    ~BluetoothServer();

    QString advertiseName() const;
    void setAdvertiseName(const QString &advertiseName);

    // Information for the device info service
    QString modelName() const;
    void setModelName(const QString &modelName);

    QString softwareVersion() const;
    void setSoftwareVersion(const QString &softwareVersion);

    QString hardwareVersion() const;
    void setHardwareVersion(const QString &hardwareVersion);

    QString serialNumber() const;
    void setSerialNumber(const QString &serialNumber);

    bool running() const;
    bool connected() const;

private:
    QString m_advertiseName;

    QString m_modelName;
    QString m_softwareVersion;
    QString m_hardwareVersion;
    QString m_serialNumber;

    NetworkManager *m_networkManager = nullptr;
    QBluetoothLocalDevice *m_localDevice = nullptr;
    QLowEnergyController *m_controller = nullptr;

    QLowEnergyService *m_deviceInfoService = nullptr;
    QLowEnergyService *m_genericAccessService = nullptr;
    QLowEnergyService *m_genericAttributeService = nullptr;

    NetworkService *m_networkService = nullptr;
    WirelessService *m_wirelessService = nullptr;

    bool m_running = false;
    bool m_connected = false;

    QLowEnergyServiceData deviceInformationServiceData();
    QLowEnergyServiceData genericAccessServiceData();
    QLowEnergyServiceData genericAttributeServiceData();

    void setRunning(bool running);
    void setConnected(bool connected);

    QUuid readMachineId();

signals:
    void runningChanged(const bool &running);
    void connectedChanged(const bool &connected);

private slots:
    // Local bluetooth device
    void onHostModeStateChanged(QBluetoothLocalDevice::HostMode mode);
    void onDeviceConnected(const QBluetoothAddress &address);
    void onDeviceDisconnected(const QBluetoothAddress &address);
    void onError(QLowEnergyController::Error error);

    // Bluetooth controller
    void onConnected();
    void onDisconnected();
    void onControllerStateChanged(QLowEnergyController::ControllerState state);

    // Services
    void characteristicChanged(const QLowEnergyCharacteristic &characteristic, const QByteArray &value);
    void characteristicRead(const QLowEnergyCharacteristic &characteristic, const QByteArray &value);
    void characteristicWritten(const QLowEnergyCharacteristic &characteristic, const QByteArray &value);
    void descriptorRead(const QLowEnergyDescriptor &descriptor, const QByteArray &value);
    void descriptorWritten(const QLowEnergyDescriptor &descriptor, const QByteArray &value);
    void serviceError(QLowEnergyService::ServiceError error);

public slots:
    void start();
    void stop();

};

#endif // BLUETOOTHSERVER_H