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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2013 Kalev Lember <kalevlember@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include "weather-tz.h"
#include "tz.h"
#include <libgweather/gweather.h>
static GList *
location_get_cities (GWeatherLocation *parent_location)
{
GList *cities = NULL;
GWeatherLocation *child = NULL;
while ((child = gweather_location_next_child (parent_location, child))) {
if (gweather_location_get_level (child) == GWEATHER_LOCATION_CITY) {
cities = g_list_prepend (cities, g_object_ref (child));
} else {
cities = g_list_concat (cities,
location_get_cities (child));
}
}
return cities;
}
static gboolean
weather_location_has_timezone (GWeatherLocation *loc)
{
return gweather_location_get_timezone (loc) != NULL;
}
/**
* load_timezones:
* @cities: a list of #GWeatherLocation
*
* Returns: a list of #TzLocation
*/
static GList *
load_timezones (GList *cities)
{
GList *l;
GList *tz_locations = NULL;
for (l = cities; l; l = l->next) {
TzLocation *loc;
const gchar *country;
const gchar *timezone_id;
GTimeZone *tz;
gdouble latitude;
gdouble longitude;
if (!gweather_location_has_coords (l->data) ||
!weather_location_has_timezone (l->data)) {
g_debug ("Incomplete GWeather location entry: (%s) %s",
gweather_location_get_country (l->data),
gweather_location_get_city_name (l->data));
continue;
}
country = gweather_location_get_country (l->data);
tz = gweather_location_get_timezone (l->data);
timezone_id = g_time_zone_get_identifier (tz);
gweather_location_get_coords (l->data,
&latitude,
&longitude);
loc = g_new0 (TzLocation, 1);
loc->country = g_strdup (country);
loc->latitude = latitude;
loc->longitude = longitude;
loc->zone = g_strdup (timezone_id);
loc->comment = NULL;
tz_locations = g_list_prepend (tz_locations, loc);
}
return tz_locations;
}
GList *
weather_tz_db_get_locations (const gchar *country_code)
{
g_autoptr(GWeatherLocation) world = NULL;
g_autoptr(GWeatherLocation) country = NULL;
g_autolist(GWeatherLocation) cities = NULL;
GList *tz_locations;
world = gweather_location_get_world ();
country = gweather_location_find_by_country_code (world, country_code);
if (!country)
return NULL;
cities = location_get_cities (country);
tz_locations = load_timezones (cities);
return tz_locations;
}
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