Initial MVP commit

internal/adapters/postgres/queries.go

@@ -0,0 +1,81 @@
+package postgres
+
+const (
+	queryObservationSummary = `
+SELECT
+	AVG(temperature_c) AS temperature_c,
+	AVG(apparent_temperature_c) AS apparent_temperature_c
+FROM observations
+WHERE observed_at > CURRENT_TIMESTAMP - make_interval(mins => $1);
+`
+
+	queryObservationConditions = `
+SELECT
+	station_id,
+	observed_at,
+	temperature_c,
+	text_description,
+	provider_raw_description,
+	condition_text
+FROM observations
+WHERE observed_at > CURRENT_TIMESTAMP - make_interval(mins => $1)
+ORDER BY observed_at DESC;
+`
+
+	queryObservationPrecipitation = `
+SELECT
+	raw_text
+FROM observation_present_weather
+WHERE observed_at > CURRENT_TIMESTAMP - make_interval(mins => $1)
+ORDER BY observed_at DESC;
+`
+
+	queryForecastPeriodsAt = `
+SELECT
+	period_index,
+	start_time,
+	end_time,
+	name,
+	is_day,
+	condition_code,
+	condition_text,
+	provider_raw_description,
+	text_description,
+	detailed_text,
+	icon_url,
+	temperature_c,
+	temperature_c_min,
+	temperature_c_max,
+	dewpoint_c,
+	relative_humidity_percent,
+	wind_direction_degrees,
+	wind_speed_kmh,
+	wind_gust_kmh,
+	barometric_pressure_pa,
+	visibility_meters,
+	apparent_temperature_c,
+	cloud_cover_percent,
+	probability_of_precipitation_percent,
+	precipitation_amount_mm,
+	snowfall_depth_mm,
+	uv_index
+FROM forecast_periods
+WHERE start_time < $1
+	AND end_time > $1
+ORDER BY period_index ASC, start_time DESC
+LIMIT $2;
+`
+
+	queryCurrentAlerts = `
+SELECT
+	effective,
+	expires,
+	severity,
+	event,
+	headline,
+	instruction,
+	description
+FROM alerts
+WHERE expires > CURRENT_TIMESTAMP;
+`
+)