Implemented the weather forecast discussion product from weatherfeeder v0.8.3

internal/adapters/outbound/postgres/repository_test.go

@@ -6,6 +6,8 @@ import (
 	"database/sql"
 	"testing"
 	"time"
+
+	"gitea.maximumdirect.net/ejr/weatherfeeder/model"
 )
 
 func TestMapObservationParentRowNullables(t *testing.T) {
@@ -84,6 +86,65 @@ func TestMapForecastPeriodRowNullables(t *testing.T) {
 	}
 }
 
+func TestMapDiscussionParentRowNullables(t *testing.T) {
+	issuedAt := time.Date(2026, 3, 28, 19, 24, 0, 0, time.FixedZone("CDT", -5*3600))
+	updatedAt := issuedAt.Add(time.Hour)
+	shortIssuedAt := issuedAt.Add(-5 * time.Minute)
+
+	discussion := mapDiscussionParentRow(discussionParentRow{
+		OfficeID:           sql.NullString{String: "LSX", Valid: true},
+		OfficeName:         sql.NullString{String: "National Weather Service Saint Louis MO", Valid: true},
+		IssuedAt:           issuedAt,
+		UpdatedAt:          sql.NullTime{Time: updatedAt, Valid: true},
+		Product:            "afd",
+		ShortTermQualifier: sql.NullString{String: "(Tonight)", Valid: true},
+		ShortTermIssuedAt:  sql.NullTime{Time: shortIssuedAt, Valid: true},
+		ShortTermText:      sql.NullString{String: "Short term text", Valid: true},
+	})
+
+	if discussion.OfficeID != "LSX" {
+		t.Fatalf("expected office id LSX, got %q", discussion.OfficeID)
+	}
+	if discussion.Product != model.ForecastDiscussionProductAFD {
+		t.Fatalf("expected product afd, got %q", discussion.Product)
+	}
+	if discussion.UpdatedAt == nil || discussion.UpdatedAt.Location().String() != "UTC" {
+		t.Fatalf("expected updatedAt to be UTC-normalized, got %v", discussion.UpdatedAt)
+	}
+	if discussion.ShortTerm == nil {
+		t.Fatalf("expected shortTerm section to be populated")
+	}
+	if discussion.ShortTerm.Qualifier != "(Tonight)" || discussion.ShortTerm.Text != "Short term text" {
+		t.Fatalf("unexpected shortTerm section: %+v", discussion.ShortTerm)
+	}
+	if discussion.LongTerm != nil {
+		t.Fatalf("expected longTerm nil, got %+v", discussion.LongTerm)
+	}
+}
+
+func TestMapDiscussionSectionNilWhenAllFieldsMissing(t *testing.T) {
+	got := discussionSectionPtr(sql.NullString{}, sql.NullTime{}, sql.NullString{})
+	if got != nil {
+		t.Fatalf("expected nil discussion section, got %+v", got)
+	}
+}
+
+func TestMapDiscussionKeyMessagesPreserveOrder(t *testing.T) {
+	rows := []discussionKeyMessageRow{
+		{MessageIndex: 0, MessageText: sql.NullString{String: "first", Valid: true}},
+		{MessageIndex: 1, MessageText: sql.NullString{String: "second", Valid: true}},
+	}
+
+	got := make([]string, 0, len(rows))
+	for _, row := range rows {
+		got = append(got, mapDiscussionKeyMessageRow(row))
+	}
+
+	if len(got) != 2 || got[0] != "first" || got[1] != "second" {
+		t.Fatalf("unexpected key message order: %#v", got)
+	}
+}
+
 func TestAttachAlertReferencesPreservesOrder(t *testing.T) {
 	sent1 := time.Date(2026, 3, 20, 1, 0, 0, 0, time.UTC)
 	sent2 := sent1.Add(10 * time.Minute)