Normalize Wunderground labels to METAR

frontend/lib/dashboard-official-sources.ts

@@ -1,4 +1,5 @@
 import type { CityDetail } from "@/lib/dashboard-types";
+import { normalizeObservationSourceLabel } from "@/lib/source-labels";
 
 export type OfficialSourceLink = {
   label: string;
@@ -749,7 +750,10 @@ export function getOfficialSourceLinks(detail: CityDetail): OfficialSourceLink[]
         }),
       };
     }
-    return link;
+    return {
+      ...link,
+      label: normalizeObservationSourceLabel(link.label, link.label),
+    };
   });
   const seen = new Set<string>();
   return links.filter((link) => {

frontend/lib/dashboard-utils.ts

@@ -5,6 +5,7 @@ import {
   HistoryPoint,
   NearbyStation,
 } from "@/lib/dashboard-types";
+import { normalizeObservationSourceLabel } from "@/lib/source-labels";
 
 const METAR_WX_MAP: Record<
   string,
@@ -98,7 +99,10 @@ function getObservationSourceCode(detail: CityDetail): string {
 }
 
 function getObservationSourceTag(detail: CityDetail): string {
-  const label = String(detail.current?.settlement_source_label || "")
+  const label = normalizeObservationSourceLabel(
+    detail.current?.settlement_source_label,
+    "",
+  )
     .trim()
     .toUpperCase();
   if (label) return label;

frontend/lib/i18n.ts

@@ -63,9 +63,9 @@ const MESSAGES: Record<Locale, Record<string, string>> = {
     "history.loading": "正在获取历史数据...",
     "history.error": "获取历史信息失败",
     "history.empty": "近 15 天暂无该城市历史数据",
-    "history.hitRate": "DEB 结算胜率 (WU)",
+    "history.hitRate": "DEB 结算胜率 (METAR)",
     "history.mae": "DEB MAE",
-    "history.debHitRate": "DEB 结算胜率 (WU)",
+    "history.debHitRate": "DEB 结算胜率 (METAR)",
     "history.debMae": "DEB MAE",
     "history.muMae": "μ MAE",
     "history.bestModelMae": "最佳单模型 MAE",
@@ -230,9 +230,9 @@ const MESSAGES: Record<Locale, Record<string, string>> = {
     "history.loading": "Loading historical data...",
     "history.error": "Failed to load historical data",
     "history.empty": "No historical records for this city in the last 15 days",
-    "history.hitRate": "DEB Settlement Hit Rate (WU)",
+    "history.hitRate": "DEB Settlement Hit Rate (METAR)",
     "history.mae": "DEB MAE",
-    "history.debHitRate": "DEB Settlement Hit Rate (WU)",
+    "history.debHitRate": "DEB Settlement Hit Rate (METAR)",
     "history.debMae": "DEB MAE",
     "history.muMae": "μ MAE",
     "history.bestModelMae": "Best Single-model MAE",

frontend/lib/source-labels.ts

@@ -0,0 +1,24 @@
+export function normalizeObservationSourceLabel(
+  value?: string | null,
+  fallback = "METAR",
+) {
+  const raw = String(value || "").trim();
+  if (!raw) return fallback;
+  const lowered = raw.toLowerCase();
+  if (
+    lowered === "wu" ||
+    lowered === "wunderground"
+  ) {
+    return "METAR";
+  }
+  if (lowered.includes("wunderground")) {
+    return raw.replace(/wunderground/gi, "METAR");
+  }
+  return raw;
+}
+
+export function normalizeObservationSourceCode(value?: string | null) {
+  const code = String(value || "").trim().toLowerCase();
+  if (code === "wu" || code === "wunderground") return "metar";
+  return code;
+}