#ifndef _CORRUPTER_H
#define _CORRUPTER_H

#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "common.h"

#include "MTPRNG.h"
#include "file_boundaries.h"
#include "file_type.h"

/* typedefs */
typedef unsigned char byte;

/* structures */
struct _corrupter_result {
	bool error;
	size_t hit_counter,
	       file_size,
	       damaged_bytes;
};

struct _corrupter_param {
	FILE* file;
	uint16_t probability;
	byte threshold;
	size_t passes;
	uint8_t config;
	uint32_t* seed;
	file_type_t type;
};

/* typedefs */
typedef struct _corrupter_param Corrupter_Param;
typedef struct _corrupter_result Corrupter_Result;

/* macros: procedures */
#ifdef DEBUG
# define DBG_EXPECT(text, condition) do { \
	if (!(condition)) \
		die("[debug] Fail: %s", text); \
} while (0)
#else
# define DBG_EXPECT(text, condition) do { \
	if (!(condition)) \
		abort(); \
} while (0)
#endif

/* macros: lambdas */
#define FLIP_BIT(x, n) ((x) ^ (1 << (n)))

/* functions definitions */
Corrupter_Result* corrupt_file(Corrupter_Param* param);

#endif /* _CORRUPTER_H */