1 files changed, 118 insertions, 0 deletions
diff --git a/plugins/datetime/weather-tz.c b/plugins/datetime/weather-tz.c
new file mode 100644
index 0000000..f2d38d9
--- /dev/null
+++ b/plugins/datetime/weather-tz.c
@@ -0,0 +1,118 @@
+/* -*- 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;
+}