/**
 * @internal
 * @return Returns > 0 on success or 0 on failure
 * @brief Initialize the Desktop parser subsystem
 */
int
efreet_desktop_init(void)
{
    char buf[PATH_MAX];

    _efreet_desktop_log_dom = eina_log_domain_register("Efreet_desktop", EFREET_DEFAULT_LOG_COLOR);
    if (_efreet_desktop_log_dom < 0)
    {
        ERROR("Efreet: Could not create a log domain for Efreet_desktop");
        return 0;
    }
    if (!ecore_file_init())
        goto ecore_error;
    desktop_edd = efreet_desktop_edd_init();
    if (!desktop_edd)
        goto edd_error;

    efreet_desktop_cache = eina_hash_string_superfast_new(NULL);
    efreet_desktop_types = NULL;

    EFREET_DESKTOP_TYPE_APPLICATION = efreet_desktop_type_add("Application",
                                        efreet_desktop_application_fields_parse,
                                        efreet_desktop_application_fields_save,
                                        NULL);
    EFREET_DESKTOP_TYPE_LINK = efreet_desktop_type_add("Link",
                                    efreet_desktop_link_fields_parse,
                                    efreet_desktop_link_fields_save, NULL);
    EFREET_DESKTOP_TYPE_DIRECTORY = efreet_desktop_type_add("Directory", NULL,
                                                                NULL, NULL);

    EFREET_EVENT_DESKTOP_CACHE_UPDATE = ecore_event_type_new();

    snprintf(buf, sizeof(buf), "%s/.efreet", efreet_home_dir_get());
    if (!ecore_file_mkpath(buf)) goto cache_error;

    if (efreet_cache_update)
    {
        efreet_desktop_exe_handler = ecore_event_handler_add(ECORE_EXE_EVENT_DEL,
                                                             efreet_desktop_exe_cb, NULL);
        if (!efreet_desktop_exe_handler) goto cache_error;

        cache_monitor = ecore_file_monitor_add(buf,
                                               efreet_desktop_cache_update_cb,
                                               NULL);
        if (!cache_monitor) goto handler_error;

        efreet_desktop_changes_listen();

        ecore_exe_run(PACKAGE_LIB_DIR "/efreet/efreet_desktop_cache_create", NULL);

    }

    /* TODO: Defer eet open until we actually need it open. */
    cache = eet_open(efreet_desktop_cache_file(), EET_FILE_MODE_READ);

    return 1;

handler_error:
    if (efreet_desktop_exe_handler) ecore_event_handler_del(efreet_desktop_exe_handler);
cache_error:
    if (efreet_desktop_cache) eina_hash_free(efreet_desktop_cache);
edd_error:
    ecore_file_shutdown();
ecore_error:
    eina_log_domain_unregister(_efreet_desktop_log_dom);
    return 0;
}
int
main(int argc, char **argv)
{
    /* TODO:
     * - Add file monitor on files, so that we catch changes on files
     *   during whilst this program runs.
     * - Maybe linger for a while to reduce number of cache re-creates.
     */
    Efreet_Cache_Hash hash;
    Efreet_Cache_Version version;
    Eina_List *dirs = NULL;
    Eina_List *systemdirs = NULL;
    Eina_List *extra_dirs = NULL;
    Eina_List *l = NULL;
    Eina_Inarray *stack = NULL;
    int priority = 0;
    char *dir = NULL;
    char *path;
    int lockfd = -1, tmpfd;
    int changed = 0;
    int i;
    char file[PATH_MAX] = { '\0' };
    char util_file[PATH_MAX] = { '\0' };
    mode_t um;

    if (!eina_init()) goto eina_error;
    _efreet_desktop_cache_log_dom =
        eina_log_domain_register("efreet_desktop_cache", EFREET_DEFAULT_LOG_COLOR);
    if (_efreet_desktop_cache_log_dom < 0)
    {
        EINA_LOG_ERR("Efreet: Could not create a log domain for efreet_desktop_cache.");
        return -1;
    }

    for (i = 1; i < argc; i++)
    {
        if (!strcmp(argv[i], "-v"))
            eina_log_domain_level_set("efreet_desktop_cache", EINA_LOG_LEVEL_DBG);
        else if ((!strcmp(argv[i], "-h")) ||
                 (!strcmp(argv[i], "-help")) ||
                 (!strcmp(argv[i], "--h")) ||
                 (!strcmp(argv[i], "--help")))
        {
            printf("Options:\n");
            printf("  -v              Verbose mode\n");
            printf("  -d dir1 dir2    Extra dirs\n");
            exit(0);
        }
        else if (!strcmp(argv[i], "-d"))
        {
            while ((i < (argc - 1)) && (argv[(i + 1)][0] != '-'))
                extra_dirs = eina_list_append(extra_dirs, argv[++i]);
        }
    }
    extra_dirs = eina_list_sort(extra_dirs, -1, EINA_COMPARE_CB(strcmp));

#ifdef HAVE_SYS_RESOURCE_H
    setpriority(PRIO_PROCESS, 0, 19);
#elif _WIN32
    SetPriorityClass(GetCurrentProcess(), IDLE_PRIORITY_CLASS);
#endif

    /* init external subsystems */
    if (!eet_init()) goto eet_error;
    if (!ecore_init()) goto ecore_error;

    efreet_cache_update = 0;
    /* finish efreet init */
    if (!efreet_init()) goto efreet_error;

    /* create homedir */
    snprintf(file, sizeof(file), "%s/efreet", efreet_cache_home_get());
    if (!ecore_file_exists(file))
    {
        if (!ecore_file_mkpath(file)) goto efreet_error;
        efreet_setowner(file);
    }

    /* lock process, so that we only run one copy of this program */
    lockfd = cache_lock_file();
    if (lockfd == -1) goto efreet_error;

    edd = efreet_desktop_edd();
    if (!edd) goto edd_error;

    /* read user dirs from old cache */
    ef = eet_open(efreet_desktop_util_cache_file(), EET_FILE_MODE_READ);
    if (ef)
    {
        old_file_ids = eet_data_read(ef, efreet_hash_string_edd(), "file_id");
        eet_close(ef);
    }

    /* create cache */
    snprintf(file, sizeof(file), "%s.XXXXXX", efreet_desktop_cache_file());
    /* set secure umask for temporary files */
    um = umask(0077);
    tmpfd = mkstemp(file);
    umask(um);
    if (tmpfd < 0) goto error;
    close(tmpfd);
    ef = eet_open(file, EET_FILE_MODE_READ_WRITE);
    if (!ef) goto error;

    snprintf(util_file, sizeof(util_file), "%s.XXXXXX", efreet_desktop_util_cache_file());
    /* set secure umask for temporary files */
    um = umask(0077);
    tmpfd = mkstemp(util_file);
    umask(um);
    if (tmpfd < 0) goto error;
    close(tmpfd);
    util_ef = eet_open(util_file, EET_FILE_MODE_READ_WRITE);
    if (!util_ef) goto error;

    /* write cache version */
    version.major = EFREET_DESKTOP_UTILS_CACHE_MAJOR;
    version.minor = EFREET_DESKTOP_UTILS_CACHE_MINOR;
    eet_data_write(util_ef, efreet_version_edd(), EFREET_CACHE_VERSION, &version, 1);
    version.major = EFREET_DESKTOP_CACHE_MAJOR;
    version.minor = EFREET_DESKTOP_CACHE_MINOR;
    eet_data_write(ef, efreet_version_edd(), EFREET_CACHE_VERSION, &version, 1);

    desktops = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_desktop_free));

    file_ids = eina_hash_string_superfast_new(NULL);
    paths = eina_hash_string_superfast_new(NULL);

    mime_types = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    categories = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    startup_wm_class = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    name = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    generic_name = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    comment = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));
    exec = eina_hash_string_superfast_new(EINA_FREE_CB(efreet_cache_array_string_free));

    dirs = efreet_default_dirs_get(efreet_data_home_get(), efreet_data_dirs_get(),
                                                                    "applications");
    if (!dirs) goto error;
    stack = eina_inarray_new(sizeof(struct stat), 16);
    if (!stack) goto error;

    EINA_LIST_FREE(dirs, path)
     {
        char file_id[PATH_MAX] = { '\0' };

        eina_inarray_flush(stack);
        if (!cache_scan(stack, path, file_id, priority++, 1, &changed))
          goto error;
        systemdirs = eina_list_append(systemdirs, path);
     }