Refactored the application structure to better separate concerns between files and packages

internal/adapters/outbound/postgres/observations_mapper.go

@@ -0,0 +1,42 @@
+// observations_mapper.go maps observation rows into weather model payloads.
+// Layer: adapters/outbound/postgres observations feature.
+package postgres
+
+import (
+	"encoding/json"
+	"strings"
+
+	"gitea.maximumdirect.net/ejr/weatherfeeder/model"
+)
+
+func mapObservationParentRow(row observationParentRow) model.WeatherObservation {
+	return model.WeatherObservation{
+		StationID:               stringValue(row.StationID),
+		StationName:             stringValue(row.StationName),
+		Timestamp:               row.ObservedAt.UTC(),
+		ConditionCode:           model.WMOCode(row.ConditionCode),
+		IsDay:                   boolPtr(row.IsDay),
+		TextDescription:         stringValue(row.TextDescription),
+		TemperatureC:            float64Ptr(row.TemperatureC),
+		DewpointC:               float64Ptr(row.DewpointC),
+		WindDirectionDegrees:    float64Ptr(row.WindDirectionDegrees),
+		WindSpeedKmh:            float64Ptr(row.WindSpeedKmh),
+		WindGustKmh:             float64Ptr(row.WindGustKmh),
+		BarometricPressurePa:    float64Ptr(row.BarometricPressurePa),
+		VisibilityMeters:        float64Ptr(row.VisibilityMeters),
+		RelativeHumidityPercent: float64Ptr(row.RelativeHumidityPercent),
+		ApparentTemperatureC:    float64Ptr(row.ApparentTemperatureC),
+	}
+}
+
+func mapObservationPresentWeatherRow(row observationPresentWeatherRow) (model.PresentWeather, error) {
+	if !row.RawText.Valid || strings.TrimSpace(row.RawText.String) == "" {
+		return model.PresentWeather{}, nil
+	}
+
+	var raw map[string]any
+	if err := json.Unmarshal([]byte(row.RawText.String), &raw); err != nil {
+		return model.PresentWeather{}, err
+	}
+	return model.PresentWeather{Raw: raw}, nil
+}