Added new endpoints under /forecast/narrative

internal/app/service_test.go

@@ -13,6 +13,7 @@ import (
 type fakeRepository struct {
 	observation *model.WeatherObservation
 	forecast    *model.WeatherForecastRun
+	narrative   *model.WeatherForecastRun
 	alerts      *model.WeatherAlertRun
 	conditions  *CurrentConditions
 	err         error
@@ -28,6 +29,10 @@ func (r *fakeRepository) LatestHourlyForecast(context.Context) (*model.WeatherFo
 	return r.forecast, r.err
 }
 
+func (r *fakeRepository) LatestNarrativeForecast(context.Context) (*model.WeatherForecastRun, error) {
+	return r.narrative, r.err
+}
+
 func (r *fakeRepository) LatestAlertRun(context.Context) (*model.WeatherAlertRun, error) {
 	return r.alerts, r.err
 }
@@ -63,6 +68,19 @@ func TestServiceDelegatesForecast(t *testing.T) {
 	}
 }
 
+func TestServiceDelegatesNarrativeForecast(t *testing.T) {
+	repo := &fakeRepository{narrative: &model.WeatherForecastRun{LocationID: "stl-narrative"}}
+	svc := NewService(repo)
+
+	run, err := svc.LatestNarrativeForecast(context.Background())
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if run == nil || run.LocationID != "stl-narrative" {
+		t.Fatalf("unexpected forecast: %+v", run)
+	}
+}
+
 func TestServiceDelegatesAlerts(t *testing.T) {
 	repo := &fakeRepository{alerts: &model.WeatherAlertRun{LocationID: "stl"}}
 	svc := NewService(repo)