Normalize briefing module options and weather stories

internal/weatherdata/bundle.go

@@ -4,6 +4,7 @@ package weatherdata
 import (
 	"encoding/json"
 	"math"
+	"strings"
 	"time"
 )
 
@@ -180,6 +181,15 @@ type WeatherStory struct {
 	DownloadURL string     `json:"downloadUrl,omitempty"`
 }
 
+// HasUsableContent reports whether the weather story contains displayable content or a valid period.
+func (s WeatherStory) HasUsableContent() bool {
+	return strings.TrimSpace(s.Title) != "" ||
+		strings.TrimSpace(s.Description) != "" ||
+		strings.TrimSpace(s.AltText) != "" ||
+		strings.TrimSpace(s.DownloadURL) != "" ||
+		(!s.StartTime.IsZero() && !s.EndTime.IsZero() && s.EndTime.After(s.StartTime))
+}
+
 type ConvectiveOutlookRun struct {
 	LocationID   string                        `json:"locationId,omitempty"`
 	LocationName string                        `json:"locationName,omitempty"`