/*
 *
 *  Connection Manager
 *
 *  Copyright (C) 2011-2014  BMW Car IT GmbH.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>

#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

#include <gdbus.h>

#include "../src/shared/util.h"
#include "session-test.h"

#define ENABLE_WRAPPER 1
#define PROPERTY_CHANGED		"PropertyChanged"

void util_quit_loop(struct test_fix *fix)
{
	g_main_loop_quit(fix->main_loop);
}

static gboolean func_cb(gpointer data)
{
	struct cb_data *cbd = data;
	util_test_func_t cb = cbd->cb;
	struct test_fix *fix = cbd->user_data;

	(*cb)(fix);

	return FALSE;
}

static void destroy_cb(gpointer data)
{
	struct cb_data *cbd = data;
	util_test_func_t cb = cbd->data;
	struct test_fix *fix = cbd->user_data;

	if (cb)
		(*cb)(fix);

	g_free(cbd);
}

void util_call(struct test_fix *fix, util_test_func_t func,
		util_test_func_t destroy)
{
	struct cb_data *cbd = cb_data_new(func, fix);
	GSource *source;

	cbd->data = destroy;

	source = g_timeout_source_new(0);
	g_source_set_callback(source, func_cb, cbd, destroy_cb);
	g_source_attach(source, g_main_loop_get_context(fix->main_loop));
	g_source_unref(source);
}

void util_idle_call(struct test_fix *fix, util_test_func_t func,
			util_test_func_t destroy)
{
	struct cb_data *cbd = cb_data_new(func, fix);
	GSource *source;

	cbd->data = destroy;

	source = g_idle_source_new();
	g_source_set_callback(source, func_cb, cbd, destroy_cb);
	g_source_attach(source, g_main_loop_get_context(fix->main_loop));
	g_source_unref(source);
}

static void connman_died(DBusConnection *connection, void *user_data)
{
	g_assert(FALSE);
}

static void manager_changed(struct test_fix *fix, DBusMessageIter *entry)
{
	DBusMessageIter iter;
	const char *key;
	const char *value;
	int type;

	dbus_message_iter_get_basic(entry, &key);

	LOG("key %s", key);

	dbus_message_iter_next(entry);

	dbus_message_iter_recurse(entry, &iter);

	type = dbus_message_iter_get_arg_type(&iter);

	if (type != DBUS_TYPE_STRING)
		return;

	dbus_message_iter_get_basic(&iter, &value);

	if (g_str_equal(key, "State")) {
		LOG("State %s", value);

		if (fix->manager.state)
			g_free(fix->manager.state);

		fix->manager.state = g_strdup(value);
	}

	if (fix->manager_changed)
		fix->manager_changed(fix);
}

static gboolean handle_manager_changed(DBusConnection *connection,
				DBusMessage *message,
				void *user_data)
{
	struct test_fix *fix = user_data;

	DBusMessageIter iter;

	if (dbus_message_iter_init(message, &iter))
		manager_changed(fix, &iter);

	return TRUE;
}

static struct test_fix *create_fix(void)
{
	struct test_fix *fix;
	DBusMessage *msg;

	fix = g_new0(struct test_fix, 1);

	fix->main_loop = g_main_loop_new(NULL, FALSE);
	fix->main_connection = g_dbus_setup_private(DBUS_BUS_SYSTEM,
							NULL, NULL);
	fix->watch = g_dbus_add_service_watch(fix->main_connection,
						CONNMAN_SERVICE,
						NULL,
						connman_died,
						NULL, NULL);
	fix->manager_watch = g_dbus_add_signal_watch(fix->main_connection,
						CONNMAN_SERVICE, NULL,
						CONNMAN_MANAGER_INTERFACE,
						PROPERTY_CHANGED,
						handle_manager_changed,
						fix, NULL);

	msg = manager_get_properties(fix->main_connection);
	manager_parse_properties(msg, &fix->manager);
	dbus_message_unref(msg);

	return fix;
}

static void cleanup_fix(struct test_fix *fix)
{
	g_dbus_remove_watch(fix->main_connection, fix->watch);
	g_dbus_remove_watch(fix->main_connection, fix->manager_watch);
	dbus_connection_close(fix->main_connection);
	dbus_connection_unref(fix->main_connection);

	g_main_loop_unref(fix->main_loop);

	g_free(fix);
}

struct test_data_cb {
	util_test_func_t func;
	util_test_func_t setup;
	util_test_func_t teardown;
};

static void run_test_cb(gconstpointer data)
{
	const struct test_data_cb *cbd = data;
	struct test_fix *fix;

	fix = create_fix();

	util_call(fix, cbd->setup, NULL);
	g_main_loop_run(fix->main_loop);

#if ENABLE_WRAPPER
	if (g_test_trap_fork(60 * 1000 * 1000, 0)) {
		util_call(fix, cbd->func, NULL);
		g_main_loop_run(fix->main_loop);
		exit(0);
	}

	g_test_trap_assert_passed();
#else
	util_call(fix, func, NULL);
	g_main_loop_run(fix->main_loop);
#endif

	util_call(fix, cbd->teardown, NULL);
	g_main_loop_run(fix->main_loop);

	cleanup_fix(fix);
}

void util_test_add(const char *test_name, util_test_func_t test_func,
		util_test_func_t setup, util_test_func_t teardown)
{
	struct test_data_cb *cbd = g_new0(struct test_data_cb, 1);

	cbd->func = test_func;
	cbd->setup = setup;
	cbd->teardown = teardown;

	g_test_add_vtable(test_name, 0, cbd, NULL,
			(GTestFixtureFunc) run_test_cb,
			(GTestFixtureFunc) g_free);
}

void util_session_create(struct test_fix *fix, unsigned int max_sessions)
{
	unsigned int i;

	fix->max_sessions = max_sessions;
	fix->session = g_try_new0(struct test_session, max_sessions);

	for (i = 0; i < max_sessions; i++) {
		fix->session[i].fix = fix;
		fix->session[i].info = g_try_new0(struct test_session_info, 1);
		fix->session[i].connection = g_dbus_setup_private(
						DBUS_BUS_SYSTEM, NULL, NULL);
	}
}

void util_session_destroy(struct test_fix *fix)
{
	unsigned int i;

	for (i = 0; i < fix->max_sessions; i++) {
		dbus_connection_close(fix->session[i].connection);
		g_free(fix->session[i].info);
	}

	g_free(fix->session);
}

void util_session_init(struct test_session *session)
{
	DBusMessage *msg;
	DBusMessageIter iter;
	const char *path;
	int err;

	err = session_notify_register(session, session->notify_path);
	g_assert(err == 0);

	msg = manager_create_session(session->connection,
					session->info,
					session->notify_path);
	g_assert(msg);
	dbus_message_iter_init(msg, &iter);

	dbus_message_iter_get_basic(&iter, &path);
	session->session_path = g_strdup(path);

	dbus_message_unref(msg);
}

void util_session_cleanup(struct test_session *session)
{
	DBusMessage *msg;
	int err;

	msg = manager_destroy_session(session->connection,
					session->session_path);
	g_assert(msg);
	dbus_message_unref(msg);

	err = session_notify_unregister(session,
					session->notify_path);
	g_assert(err == 0);

	g_free(session->info->bearer);
	g_free(session->info->name);
	g_free(session->info->interface);
	g_slist_foreach(session->info->allowed_bearers,
			bearer_info_cleanup, NULL);
	g_slist_free(session->info->allowed_bearers);

	session->notify = NULL;
	g_free(session->notify_path);
	g_free(session->session_path);
}