/**
 * @file llfs.c
 * @brief Linked List Filesystem implementation (llfs)
 * @author Lorenz C.
 * @todo Implement file extension filter
 */

#include <string.h>
#define LOGGER_LEVEL_WARN
#include "log.h"
#include "llfs.h"

extern struct llfs_data_file *llfs_root;
const char* TAG = "llfs";


// TODO: Implement file extension filter
size_t llfs_file_list(llfs_file_t *file_list, size_t max_files, char* filter) {
    size_t file_count = 0;
    const struct llfs_data_file *file = llfs_root;

    LOG_DEBUG(TAG, "Getting file list with filter: %s", filter);

    while (file != NULL && file_count < max_files) {
        file_list[file_count].data = file->data;
        file_list[file_count].name = file->name;
        file_list[file_count].len = file->len;
        file_count++;
        file = file->next;
    }

    LOG_DEBUG(TAG, "Files found: %d", file_count);
    return file_count;
}

llfs_file_t *llfs_file_open(const char *name) {
    const struct llfs_data_file *file = llfs_root;

    LOG_DEBUG(TAG, "Opening file: %s", name);

    while (file != NULL) {
        if (strcmp(file->name, name) == 0) {
            LOG_DEBUG(TAG, "File found: %s, size: %d", file->name, file->len);
            return (llfs_file_t *) file;
        }
        file = file->next;
    }

    LOG_DEBUG(TAG, "File not found: %s", name);
    return NULL;
}