Files
weatherreporter/internal/briefing/narrative_forecast_module.go

94 lines
4.5 KiB
Go

package briefing
import (
"time"
"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
)
type NarrativeForecastModule struct {
Product string `json:"product,omitempty"`
IssuedAt time.Time `json:"issued_at,omitempty"`
UpdatedAt *time.Time `json:"updated_at,omitempty"`
SourceLocation string `json:"source_location,omitempty"`
SourceLocationID string `json:"source_location_id,omitempty"`
Periods []NarrativeForecastPeriod `json:"periods,omitempty"`
}
type NarrativeForecastPeriod struct {
Name string `json:"name,omitempty"`
PeriodBegins string `json:"period_begins,omitempty"`
PeriodEnds string `json:"period_ends,omitempty"`
IsDay *bool `json:"is_day,omitempty"`
TextDescription string `json:"text_description,omitempty"`
TemperatureC *float64 `json:"temperature_c,omitempty"`
TemperatureF *float64 `json:"temperature_f,omitempty"`
TemperatureCMin *float64 `json:"temperature_c_min,omitempty"`
TemperatureFMin *float64 `json:"temperature_f_min,omitempty"`
TemperatureCMax *float64 `json:"temperature_c_max,omitempty"`
TemperatureFMax *float64 `json:"temperature_f_max,omitempty"`
WindSpeedKmh *float64 `json:"wind_speed_kmh,omitempty"`
WindSpeedMph *float64 `json:"wind_speed_mph,omitempty"`
WindGustKmh *float64 `json:"wind_gust_kmh,omitempty"`
WindGustMph *float64 `json:"wind_gust_mph,omitempty"`
WindDirection string `json:"wind_direction,omitempty"`
ProbabilityOfPrecipitationPercent *float64 `json:"probability_of_precipitation_percent,omitempty"`
}
func buildNarrativeForecastModule(ctx ModuleContext, _ any) (*module.Output, error) {
narrative := ctx.Collected.Narrative
if narrative == nil || len(ctx.Derived.ValidPeriodNarrativePeriods) == 0 {
return nil, nil
}
value := NarrativeForecastModule{
Product: narrative.Product,
IssuedAt: narrative.IssuedAt,
UpdatedAt: copyTime(narrative.UpdatedAt),
SourceLocation: narrative.LocationName,
SourceLocationID: narrative.LocationID,
Periods: narrativeForecastPeriods(ctx.Derived.ValidPeriodNarrativePeriods, ctx.Timezone),
}
if value.isEmpty() {
return nil, nil
}
return &module.Output{ID: module.NarrativeForecast, StanzaName: "narrative_forecast", Value: value}, nil
}
func narrativeForecastPeriods(periods []weatherdata.ForecastPeriod, timezone string) []NarrativeForecastPeriod {
out := make([]NarrativeForecastPeriod, 0, len(periods))
for _, period := range periods {
validPeriod := timeutil.Period{Start: period.StartTime, End: period.EndTime}
out = append(out, NarrativeForecastPeriod{
Name: period.Name,
PeriodBegins: friendlyPeriodBeginsLabel(validPeriod, timezone),
PeriodEnds: friendlyPeriodEndsLabel(validPeriod, timezone),
IsDay: copyBool(period.IsDay),
TextDescription: period.TextDescription,
TemperatureC: copyFloat(period.TemperatureC),
TemperatureF: copyFloat(period.TemperatureF),
TemperatureCMin: copyFloat(period.TemperatureCMin),
TemperatureFMin: copyFloat(period.TemperatureFMin),
TemperatureCMax: copyFloat(period.TemperatureCMax),
TemperatureFMax: copyFloat(period.TemperatureFMax),
WindSpeedKmh: copyFloat(period.WindSpeedKmh),
WindSpeedMph: copyFloat(period.WindSpeedMph),
WindGustKmh: copyFloat(period.WindGustKmh),
WindGustMph: copyFloat(period.WindGustMph),
WindDirection: windDirectionLabel(period.WindDirectionDegrees),
ProbabilityOfPrecipitationPercent: copyFloat(period.ProbabilityOfPrecipitationPercent),
})
}
return out
}
func (v NarrativeForecastModule) isEmpty() bool {
return v.Product == "" &&
v.IssuedAt.IsZero() &&
v.UpdatedAt == nil &&
v.SourceLocation == "" &&
v.SourceLocationID == "" &&
len(v.Periods) == 0
}