/*
 * serialport.h
 *
 * Copyright 2016, 2017 TheMontezuma
 *
 * This file is copyrighted by either Fatih Aygun, Ray Ataergin, or both.
 * However, the years for these copyrights are unfortunately unknown. If you
 * know the specific year(s) please let the current maintainer know.
 */

#ifndef SERIALPORT_H
#define SERIALPORT_H

#include <QObject>
#include <QByteArray>

enum eHandshake
{
    HANDSHAKE_RI=0,
    HANDSHAKE_DSR=1,
    HANDSHAKE_CTS=2,
    HANDSHAKE_NO_HANDSHAKE=3,
    HANDSHAKE_SOFTWARE=4
};

enum eSerialBackend
{
    SERIAL_BACKEND_STANDARD=0,
    SERIAL_BACKEND_SIO_DRIVER=1
};

enum eSIOConstants
{
    SIO_ACK = 65,
    SIO_NACK = 78,
    SIO_COMPLETE = 67,
    SIO_ERROR = 69
};

#define SLEEP_FACTOR 10000

class AbstractSerialPortBackend : public QObject
{
    Q_OBJECT
//    Q_ENUMS(MessageType::UiMessageType)
//    Q_ENUMS(SerialLine)

public:
    AbstractSerialPortBackend(QObject *parent = 0);
    virtual ~AbstractSerialPortBackend();

    static inline int baudToDivisor(int baud) {return (int)(1781610.0 / baud / 2 - 7);}
    static inline int divisorToBaud(int divisor)
    {
        switch (divisor) {
        case 0:
            return 125000;
            break;
        case 1:
            return 110598;
            break;
        case 2:
            return 98797;
            break;
        default:
            return (int)(1781610.0 / (2*(divisor+7)));
        }
    }

    virtual bool open() = 0;
    virtual bool isOpen() = 0;
    virtual void close() = 0;
    virtual void cancel() = 0;
    virtual int speedByte() = 0;
    virtual QByteArray readCommandFrame() = 0;
    virtual QByteArray readDataFrame(uint size, bool verbose = true) = 0;
    virtual bool writeDataFrame(const QByteArray &data) = 0;
    virtual bool writeCommandAck() = 0;
    virtual bool writeCommandNak() = 0;
    virtual bool writeDataAck() = 0;
    virtual bool writeDataNak() = 0;
    virtual bool writeComplete() = 0;
    virtual bool writeError() = 0;
    virtual bool setSpeed(int speed) = 0;
    virtual bool writeRawFrame(const QByteArray &data) = 0;
    virtual void setActiveSioDevices(const QByteArray &data) = 0;
signals:
    void statusChanged(QString status);
};

#ifdef Q_OS_WIN
#define SERIAL_PORT_LOCATION "\\\\.\\"
#include "serialport-win32.h"
#endif
#ifdef Q_OS_UNIX
#define SERIAL_PORT_LOCATION "/dev/"
#include "serialport-unix.h"
#endif

#endif // SERIALPORT_H