/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2010 Red Hat, Inc.
 */

#include "nm-default.h"

#include "nm-simple-connection.h"
#include "nm-setting-connection.h"
#include "devices/nm-device-ethernet-utils.h"

#include "nm-test-utils-core.h"

static NMConnection *
_new_connection(const char *id)
{
    NMConnection *a;
    NMSetting *   setting;

    a       = nm_simple_connection_new();
    setting = nm_setting_connection_new();
    g_object_set(setting, NM_SETTING_CONNECTION_ID, id, NULL);
    nm_connection_add_setting(a, setting);
    return a;
}

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

static char *
_get_default_wired_name(GSList *list)
{
    gs_unref_hashtable GHashTable *existing_ids = NULL;

    if (list) {
        existing_ids = g_hash_table_new(nm_str_hash, g_str_equal);
        for (; list; list = list->next)
            g_hash_table_add(existing_ids, (char *) nm_connection_get_id(list->data));
    }
    return nm_device_ethernet_utils_get_default_wired_name(existing_ids);
}

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

static void
test_defname_no_connections(void)
{
    gs_free char *name = NULL;

    name = _get_default_wired_name(NULL);
    g_assert_cmpstr(name, ==, "Wired connection 1");
}

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

static void
test_defname_no_conflict(void)
{
    GSList *      list = NULL;
    gs_free char *name = NULL;

    list = g_slist_append(list, _new_connection("asdfasdfasdfadf"));
    list = g_slist_append(list, _new_connection("work wifi"));
    list = g_slist_append(list, _new_connection("random gsm connection"));

    name = _get_default_wired_name(list);
    g_assert_cmpstr(name, ==, "Wired connection 1");

    g_slist_free_full(list, g_object_unref);
}

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

static void
test_defname_conflict(void)
{
    GSList *      list = NULL;
    gs_free char *name = NULL;

    list = g_slist_append(list, _new_connection("asdfasdfasdfadf"));
    list = g_slist_append(list, _new_connection("Wired connection 1"));
    list = g_slist_append(list, _new_connection("random gsm connection"));

    name = _get_default_wired_name(list);
    g_assert_cmpstr(name, ==, "Wired connection 2");

    g_slist_free_full(list, g_object_unref);
}

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

static void
test_defname_multiple_conflicts(void)
{
    GSList *      list = NULL;
    gs_free char *name = NULL;

    list = g_slist_append(list, _new_connection("random gsm connection"));
    list = g_slist_append(list, _new_connection("home wifi"));
    list = g_slist_append(list, _new_connection("Wired connection 1"));
    list = g_slist_append(list, _new_connection("Wired connection 2"));
    list = g_slist_append(list, _new_connection("Wired connection 3"));
    list = g_slist_append(list, _new_connection("work wifi"));
    list = g_slist_append(list, _new_connection("a vpn"));

    name = _get_default_wired_name(list);
    g_assert_cmpstr(name, ==, "Wired connection 4");

    g_slist_free_full(list, g_object_unref);
}

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

NMTST_DEFINE();

int
main(int argc, char **argv)
{
    nmtst_init_assert_logging(&argc, &argv, "INFO", "DEFAULT");

    g_test_add_func("/defname/no_connections", test_defname_no_connections);
    g_test_add_func("/defname/no_conflict", test_defname_no_conflict);
    g_test_add_func("/defname/conflict", test_defname_conflict);
    g_test_add_func("/defname/multiple_conflicts", test_defname_multiple_conflicts);

    return g_test_run();
}