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#ifndef BLUETOOTHDEVICE_H
#define BLUETOOTHDEVICE_H

#include "serviceinfo.h"

#include <QBluetoothDeviceDiscoveryAgent>
#include <QLowEnergyController>
#include <QObject>
#include <QVariant>
#include <QList>
#include <QTimer>
#include <QElapsedTimer>

class MotionSensorData
{
public:
    double gyroScope_x{};
    double gyroScope_y{};
    double gyroScope_z{};
    double accelometer_x{};
    double accelometer_y{};
    double accelometer_z{};
    double magnetometer_x{};
    double magnetometer_y{};
    double magnetometer_z{};
    quint64 msSincePreviousData{};
};

typedef enum CharacteristicType {
    temperatureCharacteristic = 0,
    humidityCharacteristic,
    barometerCharacteristic,
    motionCharacteristic,
    lightCharacteristic
} CharacteristicType;

class SensorTagDataProvider;

class BluetoothDevice: public QObject
{
    Q_OBJECT
    Q_PROPERTY(QString deviceName READ getName CONSTANT)
    Q_PROPERTY(QString deviceAddress READ getAddress CONSTANT)
    Q_PROPERTY(DeviceState state READ state NOTIFY stateChanged)

public:
    enum DeviceState {
        Disconnected = 0,
        Scanning,
        Connected,
        Error
    };
    Q_ENUM(DeviceState)

    BluetoothDevice();
    BluetoothDevice(const QBluetoothDeviceInfo &d);
    ~BluetoothDevice();

    QString getAddress() const;
    QString getName() const;

    DeviceState state() const;

signals:
    void updateChanged();
    void stateChanged();
    void temperatureChanged(double ambientTemperature, double objectTemperature);
    void barometerChanged(double temperature, double barometer);
    void humidityChanged(double humidity);
    void lightIntensityChanged(double intensity);
    void motionChanged(MotionSensorData data);
    void statusUpdated(QString statusMsg);

public slots:
    void scanServices();
    void disconnectFromDevice();
    void temperatureDetailsDiscovered(QLowEnergyService::ServiceState newstate);
    void barometerDetailsDiscovered(QLowEnergyService::ServiceState newstate);
    void humidityDetailsDiscovered(QLowEnergyService::ServiceState newstate);
    void lightIntensityDetailsDiscovered(QLowEnergyService::ServiceState newstate);
    void motionDetailsDiscovered(QLowEnergyService::ServiceState newstate);

private slots:
    // QLowEnergyController realted
    void addLowEnergyService(const QBluetoothUuid &uuid);
    void deviceConnected();
    void errorReceived(QLowEnergyController::Error);
    void serviceScanDone();
    void deviceDisconnected();

    // QLowEnergyService related
    void updateTemperature(const QLowEnergyCharacteristic &info,
                         const QByteArray &value);
    void updatePressure(const QLowEnergyCharacteristic &info,
                         const QByteArray &value);
    void updateHumidity(const QLowEnergyCharacteristic &info,
                         const QByteArray &value);
    void updateLight(const QLowEnergyCharacteristic &info,
                         const QByteArray &value);
    void updateMotionValue(const QLowEnergyCharacteristic &info,
                         const QByteArray &value);

private:
    void setState(DeviceState state);

private:
    void irTemperatureReceived(const QByteArray &value);
    void barometerReceived(const QByteArray &value);
    void humidityReceived(const QByteArray &value);
    void lightIntensityReceived(const QByteArray &value);
    void motionReceived(const QByteArray &value);
    double convertIrTemperatureAPIReadingToCelsius(quint16 rawReading);
    bool isDeviceReady() const;
    void updateServiceDetails();

    QLowEnergyController *m_controller;
    QLowEnergyService *m_irTemperatureService;
    QLowEnergyService *m_baroService;
    QLowEnergyService *m_humidityService;
    QLowEnergyService *m_lightService;
    QLowEnergyService *m_motionService;
    DeviceState m_deviceState;
    bool m_temperatureMeasurementStarted;
    bool m_barometerMeasurementStarted;
    bool m_humidityMeasurementStarted;
    bool m_lightIntensityMeasurementStarted;
    bool m_motionMeasurementStarted;
    quint64 m_lastMilliseconds;
    QBluetoothDeviceInfo m_deviceInfo;
    SensorTagDataProvider *m_dataProvider;
    QTimer *m_serviceDetailsTimer;
};

#endif // BLUETOOTHBLUETOOTHDEVICE_H