#ifndef STREAM_H
#define STREAM_H

#include "config.h"

#include <stdlib.h>
#include <stdint.h>

typedef struct Stream Stream;
typedef struct StreamOps StreamOps;

struct Stream
{
    const StreamOps *ops;
};

struct StreamOps
{
    int64_t (*read)(void *ptr, size_t size, Stream *stream);
    int64_t (*write)(const void *ptr, size_t size, Stream *stream);
    int (*close)(Stream *stream);
    int (*seek)(Stream *stream, int64_t offset, int whence);
    int64_t (*tell)(Stream *stream);
};

int StreamClose(Stream *stream);

int64_t StreamRead(void *ptr, size_t size, Stream *stream);
int64_t StreamReadUint16Be(uint16_t *v, Stream *stream);
int64_t StreamReadByte(unsigned char *byte, Stream *stream);

int64_t StreamWrite(const void *ptr, size_t size, Stream *stream);
int64_t StreamWriteUint16Be(uint16_t v, Stream *stream);
int64_t StreamWriteByte(unsigned char byte, Stream *stream);

int StreamSeek(Stream *stream, int64_t offset, int whence);

int64_t StreamTell(Stream *stream);

#endif