feat: add daily rain tables (#268)

* feat: add monthly rain tables

* fix: foreign key

* fix: daily weather data

* fix: add RLS

* feat: created_at column, just to be sure

* feat: function for fetching aggregated weather data

* chore: formatting

* feat: add parameter to limit number of returned months

* fix: typo

supabase/migrations/20240619130511_montly_rain.sql

@@ -0,0 +1,25 @@
+create table if not exists daily_weather_data (
+    id serial primary key,
+    created_at timestamp not null default now(),
+    measure_day timestamp not null,
+    day_finished boolean not null default false,
+    sum_precipitation_mm_per_sqm float,
+    avg_temperature_celsius float,
+    avg_pressure_msl float,
+    sum_sunshine_minutes float,
+    avg_wind_direction_deg float,
+    avg_wind_speed_kmh float,
+    avg_cloud_cover_percentage float,
+    avg_dew_point_celcius float,
+    avg_relative_humidity_percentage float,
+    avg_visibility_m float,
+    avg_wind_gust_direction_deg float,
+    avg_wind_gust_speed_kmh float,
+    source_dwd_station_ids text[]
+);
+
+alter table "public"."daily_weather_data" enable row level security;
+create policy "Allow anonymous select on daily_weather_data"
+    on "public"."daily_weather_data"
+    for select
+    using (true);

supabase/migrations/20240620113031_rain_functions.sql

@@ -0,0 +1,32 @@
+CREATE OR REPLACE FUNCTION public.accumulated_weather_per_month (limit_monts int)
+	RETURNS TABLE (
+		measure_day text, sum_precipitation_mm_per_sqm float, avg_temperature_celsius float, avg_pressure_msl float, sum_sunshine_minutes float, avg_wind_direction_deg float, avg_wind_speed_kmh float, avg_cloud_cover_percentage float, avg_dew_point_celcius float, avg_relative_humidity_percentage float, avg_visibility_m float, avg_wind_gust_direction_deg float, avg_wind_gust_speed_kmh float)
+	LANGUAGE plpgsql
+	SECURITY INVOKER
+	AS $function$
+BEGIN
+	RETURN query
+	SELECT
+		to_char(daily_weather_data.measure_day, 'YYYY-MM'),
+		sum(daily_weather_data.sum_precipitation_mm_per_sqm) AS sum_precipitation_mm_per_sqm,
+		avg(daily_weather_data.avg_temperature_celsius) AS avg_temperature_celsius,
+		avg(daily_weather_data.avg_pressure_msl) AS avg_pressure_msl,
+		sum(daily_weather_data.sum_sunshine_minutes) AS sum_sunshine_minutes,
+		avg(daily_weather_data.avg_wind_direction_deg) AS avg_wind_direction_deg,
+		avg(daily_weather_data.avg_wind_speed_kmh) AS avg_wind_speed_kmh,
+		avg(daily_weather_data.avg_cloud_cover_percentage) AS avg_cloud_cover_percentage,
+		avg(daily_weather_data.avg_dew_point_celcius) AS avg_dew_point_celcius,
+		avg(daily_weather_data.avg_relative_humidity_percentage) AS avg_relative_humidity_percentage,
+		avg(daily_weather_data.avg_visibility_m) AS avg_visibility_m,
+		avg(daily_weather_data.avg_wind_gust_direction_deg) AS avg_wind_gust_direction_deg,
+		avg(daily_weather_data.avg_wind_gust_speed_kmh) AS avg_wind_gust_speed_kmh
+	FROM
+		daily_weather_data
+	GROUP BY
+		to_char(daily_weather_data.measure_day, 'YYYY-MM')
+	ORDER BY
+		to_char(daily_weather_data.measure_day, 'YYYY-MM')
+	DESC
+LIMIT limit_monts;
+END;
+$function$;