#ifndef SERFILE_H
#define SERFILE_H

#include <QFile>

enum SERPixelFormat : uint32_t
{
    MONO = 0,
    BAYER_RGGB = 8,
    BAYER_GRBG = 9,
    BAYER_GBRG = 10,
    BAYER_BGGR = 11,
    BAYER_CYYM = 16,
    BAYER_YCMY = 17,
    BAYER_YMCY = 18,
    BAYER_MYYC = 19,
    RGB = 100,
    BGR = 101
};

struct __attribute__ ((packed)) SERHeader
{
    char fileid[14] = {'L','U','C','A','M','-','R','E','C','O','R','D','E','R'};
    uint32_t lulid = 0;
    SERPixelFormat colorid = MONO;
    uint32_t littleendian = 0;
    uint32_t imagewidth = 0;
    uint32_t imageheight = 0;
    uint32_t pixeldepth = 0;
    uint32_t framecount = 0;
    char observer[40] = {0};
    char instrument[40] = {0};
    char telescope[40] = {0};
    int64_t datetime = 0;
    int64_t datetime_utc = 0;
};

class SERFileWriter
{
public:
    SERFileWriter();
    ~SERFileWriter();
    bool open(const QString &path, int w, int h, SERPixelFormat format, int bitdepth);
    void close();
    bool writeFrame(const QImage &img);
private:
    int64_t getTimestamp();
    QFile _fw;
    SERHeader _header;
    std::vector<int64_t> _timestamps;
};

class SERFileReader
{
public:
    bool open(const QString &path);
    void close();
    uint32_t width() const;
    uint32_t height() const;
    uint32_t frameCount() const;
    uint64_t frameSize() const;
    uint32_t pixelDepth() const;
    SERPixelFormat pixelFormat() const;
    void getFrame(int32_t index, std::vector<uint8_t> &data);
    void getFrame(int32_t index, char *data);
private:
    QFile _fr;
    SERHeader _header;
};

#endif // SERFILE_H