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-rw-r--r--plugins/datetime/weather-tz.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/plugins/datetime/weather-tz.c b/plugins/datetime/weather-tz.c
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+++ b/plugins/datetime/weather-tz.c
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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"
+
+#define GWEATHER_I_KNOW_THIS_IS_UNSTABLE
+#include <libgweather/gweather.h>
+
+static GList *
+location_get_cities (GWeatherLocation *parent_location)
+{
+ GList *cities = NULL;
+ GWeatherLocation **children;
+ gint i;
+
+ children = gweather_location_get_children (parent_location);
+ for (i = 0; children[i]; i++) {
+ if (gweather_location_get_level (children[i]) == GWEATHER_LOCATION_CITY) {
+ cities = g_list_prepend (cities,
+ children[i]);
+ } else {
+ cities = g_list_concat (cities,
+ location_get_cities (children[i]));
+ }
+ }
+
+ 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;
+ 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);
+ timezone_id = gweather_timezone_get_tzid (gweather_location_get_timezone (l->data));
+ 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)
+{
+ GList *cities;
+ GList *tz_locations;
+ GWeatherLocation *world;
+ GWeatherLocation *country;
+
+ 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);
+
+ g_list_free (cities);
+
+ return tz_locations;
+}