Updated precipitation timing language in the shared template

internal/forecast/derive.go

@@ -81,6 +81,7 @@ type PrecipitationWindow struct {
 	End                         *time.Time `json:"end,omitempty"`
 	MaxPrecipitationProbability TimedValue `json:"maxPrecipitationProbability"`
 	ProbabilityThreshold        float64    `json:"probabilityThreshold"`
+	TextDescriptions            []string   `json:"textDescriptions,omitempty"`
 }
 
 func BuildPrecipTiming(periods []weatherdata.ForecastPeriod) PrecipTiming {
@@ -114,6 +115,7 @@ func buildPrecipTimingWithThreshold(periods []weatherdata.ForecastPeriod, thresh
 			},
 			ProbabilityThreshold: threshold,
 		}
+		appendActiveTextDescription(active, forecastPeriod.TextDescription)
 		activeLastEnd = forecastPeriod.EndTime
 		if timing.FirstPrecipitation == nil {
 			timing.FirstPrecipitation = &TimedValue{
@@ -135,6 +137,8 @@ func buildPrecipTimingWithThreshold(periods []weatherdata.ForecastPeriod, thresh
 				if forecastPeriod.StartTime.After(activeLastEnd) {
 					closeActive()
 					startActive(forecastPeriod, probability)
+				} else {
+					appendActiveTextDescription(active, forecastPeriod.TextDescription)
 				}
 				if probability > active.MaxPrecipitationProbability.Value {
 					active.MaxPrecipitationProbability = TimedValue{
@@ -166,6 +170,17 @@ func buildPrecipTimingWithThreshold(periods []weatherdata.ForecastPeriod, thresh
 	return timing
 }
 
+func appendActiveTextDescription(window *PrecipitationWindow, text string) {
+	if window == nil {
+		return
+	}
+	text = strings.TrimSpace(text)
+	if text == "" {
+		return
+	}
+	window.TextDescriptions = append(window.TextDescriptions, text)
+}
+
 func BuildDailySummary(bundle *weatherdata.Bundle, date time.Time, location *time.Location, dayparts []DaypartDefinition) (*DailySummary, error) {
 	if bundle == nil {
 		return nil, fmt.Errorf("forecast bundle is required")