Allow dynamic selection of weather provider

types.ts

@@ -63,3 +63,21 @@ export interface AdjustmentOptions {
     /** The rain delay to use (in hours). */
     d?: number;
 }
+
+export interface WeatherProvider {
+    /**
+     * Retrieves weather data necessary for watering level calculations.
+     * @param coordinates The coordinates to retrieve the watering data for.
+     * @return A Promise that will be resolved with the WateringData if it is successfully retrieved,
+     * or resolved with undefined if an error occurs while retrieving the WateringData.
+     */
+    getWateringData( coordinates : GeoCoordinates ): Promise< WateringData >;
+
+    /**
+     * Retrieves the current weather data for usage in the mobile app.
+     * @param coordinates The coordinates to retrieve the weather for
+     * @return A Promise that will be resolved with the WeatherData if it is successfully retrieved,
+     * or resolved with undefined if an error occurs while retrieving the WeatherData.
+     */
+    getWeatherData( coordinates : GeoCoordinates ): Promise< WeatherData >;
+}