filesystem.h

#ifndef FILESYSTEM_H
#define FILESYSTEM_H

#include <stdio.h>
#include <time.h>
#include <stdint.h>

#define BLOCK_SIZE 1024
#define NAME_LENGTH 16
#define FILES_IN_DIR 31
#define MAX_BLOCKS 255

/* Flags of attributes */
#define FIL 0x1
#define DIR 0x2
#define FREE 0
#define OCCUPIED(b) (0x3 & b)

typedef struct superBlock {
    char name[6];
    uint16_t size, block_size, n_blocks, empty_blocks, fat_offset, blocks_offset;
} SuperBlock;

typedef struct block {
    uint8_t data[BLOCK_SIZE];
} Block;

typedef struct fatTable {
    int16_t *tab;
} FATTable;

/* can be either file or directory */
typedef struct attributes {
    char name[NAME_LENGTH];
    time_t created;
    uint16_t size;
    uint8_t flags; /* file or dir or free */
    uint8_t block_number;
} Attributes;

/* used to store information on a directory. It keeps one block */
typedef struct directory {
    Attributes entries[FILES_IN_DIR];
    uint16_t n_entries;
} Directory;

int create_disc(uint16_t size, char *name);

int show_fat(char *discName);

int make_directory(char *discName, char *path, char *name);

int add_file(char *disc_name, char *fromPath, char *toPath);

int get_file(char *disc_name, char *fromPath, char *name);

int show_directory(char *discName, char *path);

int remove_file(char *disc_name, char *path, char *name);

int stats(char *discName, char *path, char *name);

int remove_disc(char *discName);


#endif