#ifndef FPK_H
#define FPK_H

#include <stddef.h>
#include <stdint.h>

#define FPK_MAGIC "FPK1"
#define FPK_MAGIC_SIZE 4
#define FPK_VERSION 1

#define FPK_HEADER_SIZE 28
/*
 * magic          4
 * entry_count    8
 * dir_offset     8
 * strtab_offset  8
 *               --
 *               28
 */
#define FPK_DIR_ENTRY_SIZE 25
/*
 * path_offset  8
 * data_offset  8
 * data_size    8
 * method       1
 *             --
 *             25
 */

#define FPK_METHOD_STORE 0

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
	const char *path;
	uint64_t data_offset;
	uint64_t data_size;
	uint8_t method;
} fpk_entry_t;

struct fpk;
struct fpk_writer;

struct fpk *fpk_open(const char *path);
void fpk_close(struct fpk *fpk);
fpk_entry_t *fpk_find(struct fpk *fpk, const char *path);
void *fpk_read(struct fpk *fpk, const fpk_entry_t *entry, size_t *out_size);
uint64_t fpk_entry_count(const struct fpk *fpk);
const fpk_entry_t *fpk_entry_at(const struct fpk *fpk, uint64_t index);

struct fpk_writer *fpk_writer_open(const char *path);
int fpk_writer_add(struct fpk_writer *w, const char *path, const void *data,
		    size_t size);
int fpk_writer_finalize(struct fpk_writer *w);
void fpk_writer_close(struct fpk_writer *w);

#ifdef __cplusplus
}
#endif

#endif /* FPK_H */