/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019 Red Hat, Inc.
 */

#ifndef __NM_SETTINGS_UTILS_H__
#define __NM_SETTINGS_UTILS_H__

#include "nm-settings-storage.h"

/*****************************************************************************/

struct timespec;

const struct timespec *
nm_sett_util_stat_mtime(const char *filename, gboolean do_lstat, struct timespec *out_val);

/*****************************************************************************/

typedef struct {
    const char *uuid;

    CList _storage_by_uuid_lst_head;

    char uuid_data[];
} NMSettUtilStorageByUuidHead;

typedef struct {
    CList       _storage_lst_head;
    GHashTable *idx_by_filename;
    GHashTable *idx_by_uuid;
} NMSettUtilStorages;

void nm_sett_util_storage_by_uuid_head_destroy(NMSettUtilStorageByUuidHead *sbuh);

#define NM_SETT_UTIL_STORAGES_INIT(storages, storage_destroy_fcn)                              \
    {                                                                                          \
        ._storage_lst_head = C_LIST_INIT(((storages)._storage_lst_head)),                      \
        .idx_by_filename   = g_hash_table_new_full(nm_str_hash,                                \
                                                 g_str_equal,                                \
                                                 NULL,                                       \
                                                 (GDestroyNotify) storage_destroy_fcn),      \
        .idx_by_uuid =                                                                         \
            g_hash_table_new_full(nm_pstr_hash,                                                \
                                  nm_pstr_equal,                                               \
                                  NULL,                                                        \
                                  (GDestroyNotify) nm_sett_util_storage_by_uuid_head_destroy), \
    }

void nm_sett_util_storages_clear(NMSettUtilStorages *storages);

#define nm_auto_clear_sett_util_storages nm_auto(nm_sett_util_storages_clear)

void nm_sett_util_storages_add_take(NMSettUtilStorages *storages, gpointer storage_take_p);

gpointer nm_sett_util_storages_steal(NMSettUtilStorages *storages, gpointer storage_p);

/*****************************************************************************/

static inline gpointer /* NMSettingsStorage * */
nm_sett_util_storages_lookup_by_filename(NMSettUtilStorages *storages, const char *filename)
{
    nm_assert(filename);

    return g_hash_table_lookup(storages->idx_by_filename, filename);
}

static inline NMSettUtilStorageByUuidHead *
nm_sett_util_storages_lookup_by_uuid(NMSettUtilStorages *storages, const char *uuid)
{
    nm_assert(uuid);

    return g_hash_table_lookup(storages->idx_by_uuid, &uuid);
}

/*****************************************************************************/

typedef struct {
    GHashTable *idx_by_filename;
    const char *allowed_filename;
} NMSettUtilAllowFilenameData;

#define NM_SETT_UTIL_ALLOW_FILENAME_DATA(_storages, _allowed_filename) \
    (&((NMSettUtilAllowFilenameData){                                  \
        .idx_by_filename  = (_storages)->idx_by_filename,              \
        .allowed_filename = (_allowed_filename),                       \
    }))

gboolean nm_sett_util_allow_filename_cb(const char *filename, gpointer user_data);

#endif /* __NM_SETTINGS_UTILS_H__ */