Implemented OwmForecast

Calendar/OwmForecasts.py

@@ -0,0 +1,52 @@
+from WeatherForecast import WeatherForecast
+from WeatherInterface import WeatherInterface
+import pyowm
+from datetime import datetime
+
+class OwmForecasts (WeatherInterface):
+    """Fetches weather through the Openweathermap-api."""
+    def __init__ (self, api_key, units):
+        self.api = pyowm.OWM(api_key)
+        self.units = units
+
+    def is_available (self):
+        return self.api.is_API_online()
+
+    def get_today_forecast (self, location):
+        if self.is_available() is False:
+            return None
+
+        observation = self.api.weather_at_place(location)
+        weather = observation.get_weather()
+
+        return self.__get_forecast_from_weather__(weather, location=location)
+
+    def get_forecast_in_days (self, offset_by_days, location):
+        return None
+
+    def __get_forecast_from_weather__ (self, weather, location):
+        forecast_object = WeatherForecast()
+        forecast_object.units = self.units
+        forecast_object.fetch_time = datetime.now()
+        forecast_object.location = location
+        forecast_object.forecast_datetime = weather.get_reference_time(timeformat='date')
+
+        forecast_object.icon = weather.get_weather_icon_name()
+        forecast_object.air_humidity = str(weather.get_humidity())
+        forecast_object.clouds = str(weather.get_clouds())
+        forecast_object.short_description = str(weather.get_status())
+        forecast_object.detailed_description = str(weather.get_detailed_status())
+        forecast_object.air_pressure = str(weather.get_pressure()['press'])
+
+        if forecast_object.units == "metric":
+            forecast_object.air_temperature = str(int(weather.get_temperature(unit='celsius')['temp']))
+            forecast_object.wind_speed = str(int(weather.get_wind()['speed']))
+
+        if forecast_object.units == "imperial":
+            forecast_object.air_temperature = str(int(weather.get_temperature('fahrenheit')['temp']))
+            forecast_object.wind_speed = str(int(weather.get_wind()['speed'] * 0.621))
+
+        forecast_object.sunrise = datetime.fromtimestamp(int(weather.get_sunrise_time(timeformat='unix')))
+        forecast_object.sunset = datetime.fromtimestamp(int(weather.get_sunset_time(timeformat='unix')))
+
+        return forecast_object