Added support for Area Forecast Discussions issued by the NWS

model/forecast_discussion.go

@@ -0,0 +1,40 @@
+package model
+
+import "time"
+
+// ForecastDiscussionProduct distinguishes the discussion bulletin family.
+//
+// Today weatherfeeder only normalizes Area Forecast Discussion (AFD) products,
+// but this remains a distinct type so additional discussion-like products can be
+// added without changing the payload field type.
+type ForecastDiscussionProduct string
+
+const (
+	ForecastDiscussionProductAFD ForecastDiscussionProduct = "afd"
+)
+
+// WeatherForecastDiscussion is a canonical issued discussion bulletin for an NWS office.
+//
+// Unlike WeatherForecastRun, this is authored narrative text rather than a sequence
+// of forecast periods.
+type WeatherForecastDiscussion struct {
+	OfficeID   string `json:"officeId,omitempty"`
+	OfficeName string `json:"officeName,omitempty"`
+
+	Product ForecastDiscussionProduct `json:"product"`
+
+	IssuedAt  time.Time  `json:"issuedAt"`
+	UpdatedAt *time.Time `json:"updatedAt,omitempty"`
+
+	KeyMessages []string `json:"keyMessages,omitempty"`
+
+	ShortTerm *WeatherForecastDiscussionSection `json:"shortTerm,omitempty"`
+	LongTerm  *WeatherForecastDiscussionSection `json:"longTerm,omitempty"`
+}
+
+// WeatherForecastDiscussionSection is a fixed prose section within a discussion bulletin.
+type WeatherForecastDiscussionSection struct {
+	Qualifier string     `json:"qualifier,omitempty"`
+	IssuedAt  *time.Time `json:"issuedAt,omitempty"`
+	Text      string     `json:"text,omitempty"`
+}