/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
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* editing and translation, are reserved. The use of this project is subject to the terms of a
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* of use of nymea GmbH, available under https://nymea.io/license
*
* GNU Lesser General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the terms of the GNU
* Lesser General Public License as published by the Free Software Foundation; version 3.
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* See the GNU Lesser General Public License for more details.
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#ifndef ZIGBEEINTERFACENXP_H
#define ZIGBEEINTERFACENXP_H

#include <QObject>
#include <QTimer>
#include <QSerialPort>

class ZigbeeInterfaceNxp : public QObject
{
    Q_OBJECT

public:
    enum ProtocolByte {
        ProtocolByteEnd = 0xC0,
        ProtocolByteEsc = 0xDB,
        ProtocolByteTransposedEnd = 0xDC,
        ProtocolByteTransposedEsc = 0xDD
    };
    Q_ENUM(ProtocolByte)

    explicit ZigbeeInterfaceNxp(QObject *parent = nullptr);
    ~ZigbeeInterfaceNxp();

    bool available() const;
    QString serialPort() const;

private:
    QTimer *m_reconnectTimer = nullptr;
    QSerialPort *m_serialPort = nullptr;
    bool m_available = false;
    QByteArray m_dataBuffer;

    quint8 calculateCrc(const QByteArray &data);
    QByteArray unescapeData(const QByteArray &data);
    QByteArray escapeData(const QByteArray &data);

    void setAvailable(bool available);

signals:
    void availableChanged(bool available);
    void packageReceived(const QByteArray &package);

private slots:
    void onReconnectTimeout();
    void onReadyRead();
    void onError(const QSerialPort::SerialPortError &error);

public slots:
    void sendPackage(const QByteArray &package);
    bool enable(const QString &serialPort = "/dev/ttyS0", qint32 baudrate = 115200);
    void reconnectController();
    void disable();

};

#endif // ZIGBEEINTERFACENXP_H