/*
  FUSE: Filesystem in Userspace
  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  Copyright (C) 2011       Sebastian Pipping <sebastian@pipping.org>

  ICFS: Interactively Controlled File System
  Copyright (C) 2024-2025  Fedir Kovalov

  This program can be distributed under the terms of the GNU GPLv2.
  See the file LICENSE.
*/

#define FUSE_USE_VERSION 31

#define _GNU_SOURCE

#include <fuse3/fuse.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>

#include "fuse_operations.h"
#include "sourcefs.h"
#include "ui-socket.h"

const char *mountpoint = NULL;

int main(int argc, char *argv[]) {
  if (argc < 3) {
    fprintf(stderr, "Usage: icfs <FUSE arguments> [target directory] [path to "
                    "the permanent permissions database\n");
    return EXIT_FAILURE;
  }

  // if umask != 0, the filesystem will create files with more restrictive
  // permissions than it's caller reqested
  umask(0);

  // ui socket should always be initialized before anything else, since it
  // handles the setuid bits!
  int ret = init_ui_socket(argv[argc - 1]);
  if (ret != 0) {
    fprintf(stderr, "Could not initalize ui-socket.\n");
    exit(EXIT_FAILURE);
  }

  mountpoint = realpath(argv[argc - 2], NULL);

  ret = source_init(mountpoint);
  if (ret != 0) {
    perror("source_init");
    exit(EXIT_FAILURE);
  }

  ret = fuse_main(argc - 1, argv, get_fuse_operations(), NULL);

  free((void *)mountpoint);
  source_destroy();
  destroy_ui_socket();
  return ret;
}