#ifndef _RAM_FS_H
#define _RAM_FS_H

#include <stdint.h>
#include <stdbool.h>


#define RAMFS_MAX_FILES 128
#define RAMFS_BLOCK_SIZE 4096
#define RAMFS_MAX_PATH_LEN 255

#define RAMFS_PERM_READ   0x01
#define RAMFS_PERM_WRITE  0x02
#define RAMFS_PERM_EXEC   0x04
#define RAMFS_PERM_ALL    (RAMFS_PERM_READ | RAMFS_PERM_WRITE | RAMFS_PERM_EXEC)

typedef struct ramfs_file {
    char name[RAMFS_MAX_PATH_LEN];
    uint32_t size;
    uint8_t* data;
    uint8_t permissions;
} ramfs_file_t;

typedef struct ramfs_directory {
    char name[RAMFS_MAX_PATH_LEN];
    ramfs_file_t* files[RAMFS_MAX_FILES];
    uint32_t file_count;
} ramfs_directory_t;


void ramfs_init();

ramfs_file_t* ramfs_create_file(const char* name, uint32_t size, uint8_t permissions);
bool ramfs_delete_file(const char* name);
ramfs_file_t* ramfs_find_file(const char* name);

bool ramfs_create_directory(const char* name);
bool ramfs_delete_directory(const char* name);

bool ramfs_check_permissions(const char* name, uint8_t required_permissions);

bool ramfs_resize_file(const char* name, uint32_t new_size);
bool ramfs_append_to_file(const char* name, const uint8_t* data, uint32_t data_size);

bool ramfs_read_file(const char* name, uint8_t* buffer, uint32_t buffer_size);
bool ramfs_write_file(const char* name, const uint8_t* data, uint32_t size);
bool ramfs_overwrite_file(const char* name, const uint8_t* data, uint32_t size);


void ramfs_list_files();
void ramfs_list_directories();

#endif