// Copyright (C) 2017 Denis Shienkov <denis.shienkov@gmail.com>
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef PEAKCANBACKEND_H
#define PEAKCANBACKEND_H

#include <QtSerialBus/qcanbusdevice.h>
#include <QtSerialBus/qcanbusdeviceinfo.h>
#include <QtSerialBus/qcanbusframe.h>

#include <QtCore/qlist.h>
#include <QtCore/qvariant.h>

QT_BEGIN_NAMESPACE

class PeakCanBackendPrivate;

class PeakCanBackend : public QCanBusDevice
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(PeakCanBackend)
    Q_DISABLE_COPY(PeakCanBackend)
public:
    explicit PeakCanBackend(const QString &name, QObject *parent = nullptr);
    ~PeakCanBackend();

    bool open() override;
    void close() override;

    void setConfigurationParameter(ConfigurationKey key, const QVariant &value) override;

    bool writeFrame(const QCanBusFrame &newData) override;

    QString interpretErrorFrame(const QCanBusFrame &errorFrame) override;

    static bool canCreate(QString *errorReason);
    static QList<QCanBusDeviceInfo> interfaces();

    void resetController() override;
    bool hasBusStatus() const override;
    CanBusStatus busStatus() override;
    QCanBusDeviceInfo deviceInfo() const override;

private:
    enum class Availability {
        Available = 1U, // matches PCAN_CHANNEL_AVAILABLE
        Occupied  = 2U  // matches PCAN_CHANNEL_OCCUPIED
    };
    static QList<QCanBusDeviceInfo> interfacesByChannelCondition(Availability available);
    static QList<QCanBusDeviceInfo> interfacesByAttachedChannels(Availability available, bool *ok);
    static QList<QCanBusDeviceInfo> attachedInterfaces(Availability available);

    PeakCanBackendPrivate * const d_ptr;
};

QT_END_NAMESPACE

#endif // PEAKCANBACKEND_H