Made forecast-period conditionCode optional

internal/sinks/postgres/doc.go

@@ -101,7 +101,7 @@
 //     - end_time TIMESTAMPTZ -> payload.periods[i].endTime
 //     - name TEXT NULL -> payload.periods[i].name
 //     - is_day BOOLEAN NULL -> payload.periods[i].isDay
-//     - condition_code INTEGER -> payload.periods[i].conditionCode
+//     - condition_code INTEGER NULL -> payload.periods[i].conditionCode
 //     - text_description TEXT NULL -> payload.periods[i].textDescription
 //     - temperature_c DOUBLE PRECISION NULL -> payload.periods[i].temperatureC
 //     - temperature_c_min DOUBLE PRECISION NULL -> payload.periods[i].temperatureCMin

internal/sinks/postgres/map.go

@@ -137,7 +137,7 @@ func mapForecastEvent(e fkevent.Event) ([]fksinks.PostgresWrite, error) {
 				"end_time":                             p.EndTime.UTC(),
 				"name":                                 nullableString(p.Name),
 				"is_day":                               nullableBool(p.IsDay),
-				"condition_code":                       int(p.ConditionCode),
+				"condition_code":                       nullableWMOCode(p.ConditionCode),
 				"text_description":                     nullableString(p.TextDescription),
 				"temperature_c":                        nullableFloat64(p.TemperatureC),
 				"temperature_c_min":                    nullableFloat64(p.TemperatureCMin),
@@ -370,6 +370,13 @@ func nullableTime(v *time.Time) any {
 	return v.UTC()
 }
 
+func nullableWMOCode(v *model.WMOCode) any {
+	if v == nil {
+		return nil
+	}
+	return int(*v)
+}
+
 func compactJSONText(v any) (any, error) {
 	if v == nil {
 		return nil, nil

internal/sinks/postgres/map_test.go

@@ -63,13 +63,13 @@ func TestMapPostgresEventForecastStructPayload(t *testing.T) {
 				StartTime:     time.Date(2026, 3, 16, 19, 0, 0, 0, time.UTC),
 				EndTime:       time.Date(2026, 3, 16, 20, 0, 0, 0, time.UTC),
 				IsDay:         &isDay,
-				ConditionCode: model.WMOCode(2),
+				ConditionCode: wmoCodePtr(model.WMOCode(2)),
 				TemperatureC:  &temp,
 			},
 			{
 				StartTime:     time.Date(2026, 3, 16, 20, 0, 0, 0, time.UTC),
 				EndTime:       time.Date(2026, 3, 16, 21, 0, 0, 0, time.UTC),
-				ConditionCode: model.WMOCode(3),
+				ConditionCode: nil,
 			},
 		},
 	}
@@ -94,6 +94,9 @@ func TestMapPostgresEventForecastStructPayload(t *testing.T) {
 	if got := writes[1].Values["period_index"]; got != 0 {
 		t.Fatalf("first period index = %#v, want 0", got)
 	}
+	if got := writes[2].Values["condition_code"]; got != nil {
+		t.Fatalf("second period condition_code = %#v, want nil", got)
+	}
 
 	assertAllWritesIncludeAllColumns(t, writes)
 }
@@ -198,7 +201,7 @@ func TestMapPostgresEventMapPayload(t *testing.T) {
 			{
 				StartTime:     time.Date(2026, 3, 16, 19, 0, 0, 0, time.UTC),
 				EndTime:       time.Date(2026, 3, 16, 20, 0, 0, 0, time.UTC),
-				ConditionCode: model.WMOCode(2),
+				ConditionCode: wmoCodePtr(model.WMOCode(2)),
 			},
 		},
 	}
@@ -299,3 +302,8 @@ func tableColumnCounts() map[string]int {
 	}
 	return m
 }
+
+func wmoCodePtr(v model.WMOCode) *model.WMOCode {
+	out := v
+	return &out
+}

internal/sinks/postgres/schema.go

@@ -104,7 +104,7 @@ func PostgresSchema() fksinks.PostgresSchema {
 					{Name: "end_time", Type: "TIMESTAMPTZ", Nullable: false},
 					{Name: "name", Type: "TEXT", Nullable: true},
 					{Name: "is_day", Type: "BOOLEAN", Nullable: true},
-					{Name: "condition_code", Type: "INTEGER", Nullable: false},
+					{Name: "condition_code", Type: "INTEGER", Nullable: true},
 					{Name: "text_description", Type: "TEXT", Nullable: true},
 					{Name: "temperature_c", Type: "DOUBLE PRECISION", Nullable: true},
 					{Name: "temperature_c_min", Type: "DOUBLE PRECISION", Nullable: true},