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* GNU Lesser General Public License Usage
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#ifndef EVEREST_H
#define EVEREST_H

#include <QTimer>
#include <QObject>

#include <mqttclient.h>

#include <integrations/thing.h>

class Everest : public QObject
{
    Q_OBJECT
public:

    enum State {
        StateUnplugged,
        StateDisabled,
        StatePreparing,
        StateReserved,
        StateAuthRequired,
        StateWaitingForEnergy,
        StateCharging,
        StateChargingPausedEV,
        StateChargingPausedEVSE,
        StateFinished,
        StateUnknown
    };
    Q_ENUM(State)

    explicit Everest(MqttClient *client, Thing *thing, QObject *parent = nullptr);
    ~Everest();

    Thing *thing() const;

    QString connector() const;

    void initialize();
    void deinitialize();

    void enableCharging(bool enable);
    void setMaxChargingCurrent(double current);

signals:

private slots:
    void onConnected();
    void onDisconnected();
    void onSubscribed(const QString &topic, Mqtt::SubscribeReturnCode subscribeReturnCode);
    void onPublishReceived(const QString &topic, const QByteArray &payload, bool retained);

private:
    MqttClient *m_client = nullptr;
    Thing *m_thing = nullptr;
    QTimer m_aliveTimer;

    QString m_connector;
    QString m_topicPrefix;
    QStringList m_subscribedTopics;

    bool m_initialized = false;

    // Prepends everest_api/<connector>/ to the given topic
    QString buildTopic(const QString &topic);
    State convertStringToState(const QString &stateString);
};

#endif // EVEREST_H