Implemented the weather forecast discussion product from weatherfeeder v0.8.3

internal/adapters/outbound/postgres/discussion_mapper.go

@@ -0,0 +1,45 @@
+// discussion_mapper.go maps forecast discussion rows into weather model payloads.
+// Layer: adapters/outbound/postgres discussion feature.
+package postgres
+
+import (
+	"database/sql"
+	"strings"
+
+	"gitea.maximumdirect.net/ejr/weatherfeeder/model"
+)
+
+func mapDiscussionParentRow(row discussionParentRow) model.WeatherForecastDiscussion {
+	return model.WeatherForecastDiscussion{
+		OfficeID:    stringValue(row.OfficeID),
+		OfficeName:  stringValue(row.OfficeName),
+		Product:     model.ForecastDiscussionProduct(strings.TrimSpace(row.Product)),
+		IssuedAt:    row.IssuedAt.UTC(),
+		UpdatedAt:   timePtr(row.UpdatedAt),
+		ShortTerm:   discussionSectionPtr(row.ShortTermQualifier, row.ShortTermIssuedAt, row.ShortTermText),
+		LongTerm:    discussionSectionPtr(row.LongTermQualifier, row.LongTermIssuedAt, row.LongTermText),
+		KeyMessages: nil,
+	}
+}
+
+func mapDiscussionKeyMessageRow(row discussionKeyMessageRow) string {
+	return stringValue(row.MessageText)
+}
+
+func discussionSectionPtr(
+	qualifier sql.NullString,
+	issuedAt sql.NullTime,
+	text sql.NullString,
+) *model.WeatherForecastDiscussionSection {
+	q := stringValue(qualifier)
+	t := stringValue(text)
+	i := timePtr(issuedAt)
+	if q == "" && t == "" && i == nil {
+		return nil
+	}
+	return &model.WeatherForecastDiscussionSection{
+		Qualifier: q,
+		IssuedAt:  i,
+		Text:      t,
+	}
+}