Refresh terminal charts on activation

docker-compose.yml

@@ -106,8 +106,8 @@ services:
       POLYWEATHER_REDIS_STREAM_MAXLEN: ${POLYWEATHER_REDIS_STREAM_MAXLEN:-100000}
       POLYWEATHER_SCAN_TERMINAL_REDIS_CACHE_ENABLED: ${POLYWEATHER_SCAN_TERMINAL_REDIS_CACHE_ENABLED:-true}
       POLYWEATHER_COLLECTOR_PATCH_ENDPOINT: ''
-      POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY:-2}
+      POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY:-3}
-      POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY:-2}
+      POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY:-3}
       POLYWEATHER_CITY_DETAIL_BATCH_QUEUE_WAIT_MS: ${POLYWEATHER_CITY_DETAIL_BATCH_QUEUE_WAIT_MS:-3000}
       POLYWEATHER_CITY_DETAIL_BATCH_PARTIAL_TIMEOUT_MS: ${POLYWEATHER_CITY_DETAIL_BATCH_PARTIAL_TIMEOUT_MS:-8000}
       POLYWEATHER_OBSERVATION_COLLECTOR_AMOS_SEC: ${POLYWEATHER_OBSERVATION_COLLECTOR_AMOS_SEC:-60}

frontend/components/dashboard/ScanTerminalDashboard.tsx

@@ -617,6 +617,7 @@ function PolyWeatherTerminal({
   generatedText,
   isEn,
   locale,
+  onTerminalActivated,
   onRefresh,
   refreshing,
   rows,
@@ -636,10 +637,12 @@ function PolyWeatherTerminal({
   setSelectedRegionKey,
   visibleRegions,
   toggleRegion,
+  terminalActivationRefreshKey,
 }: {
   generatedText: string;
   isEn: boolean;
   locale: "zh-CN" | "en-US";
+  onTerminalActivated: () => void;
   onRefresh: () => void;
   refreshing: boolean;
   rows: ScanOpportunityRow[];
@@ -659,6 +662,7 @@ function PolyWeatherTerminal({
   setSelectedRegionKey: (key: string) => void;
   visibleRegions: Set<string>;
   toggleRegion: (key: string) => void;
+  terminalActivationRefreshKey: number;
 }) {
   useEffect(() => {
     const handleKeyDown = (e: KeyboardEvent) => {
@@ -682,6 +686,7 @@ function PolyWeatherTerminal({
     return () => window.removeEventListener("keydown", handleKeyDown);
   }, [searchInputRef, setSearchQuery]);
   const [activeNavKey, setActiveNavKey] = useState<string>("thresholds");
+  const previousActiveNavKeyRef = useRef(activeNavKey);
   const [onlineCount, setOnlineCount] = useState<number | null>(null);
   const [feedbackDraft, setFeedbackDraft] = useState<FeedbackDraft | null>(null);
   const [feedbackRefreshKey, setFeedbackRefreshKey] = useState(0);
@@ -705,6 +710,13 @@ function PolyWeatherTerminal({
     void preloadTemperatureChartCanvas();
   }, [activeNavKey]);
 
+  useEffect(() => {
+    const previousActiveNavKey = previousActiveNavKeyRef.current;
+    previousActiveNavKeyRef.current = activeNavKey;
+    if (activeNavKey !== "thresholds" || previousActiveNavKey === "thresholds") return;
+    onTerminalActivated();
+  }, [activeNavKey, onTerminalActivated]);
+
   useEffect(() => {
     const fetchOnline = () => {
       if (typeof document !== "undefined" && document.visibilityState === "hidden") return;
@@ -1078,6 +1090,7 @@ function PolyWeatherTerminal({
                       row={mobileChartRow}
                       allRows={filteredRegionRows}
                       compact={false}
+                      activationRefreshKey={terminalActivationRefreshKey}
                       disableClose={true}
                       onReportIssue={openChartFeedback}
                     />
@@ -1133,6 +1146,7 @@ function PolyWeatherTerminal({
                         row={filteredRegionRows.find((r) => String(r.city || "").toLowerCase() === visibleSlots[maximizedSlotIndex]) || null}
                         allRows={filteredRegionRows}
                         compact={false}
+                        activationRefreshKey={terminalActivationRefreshKey}
                         onSearchClick={() => setActiveSearchSlotIndex(maximizedSlotIndex)}
                         onMaximize={() => setMaximizedSlotIndex(null)}
                         onClose={() => {
@@ -1217,6 +1231,7 @@ function PolyWeatherTerminal({
                               row={rowForSlot}
                               allRows={filteredRegionRows}
                               compact={true}
+                              activationRefreshKey={terminalActivationRefreshKey}
                               isActive={isSlotActive}
                               slotIndex={slotIndex}
                               onSearchClick={() => setActiveSearchSlotIndex(slotIndex)}
@@ -1639,11 +1654,16 @@ function ScanTerminalScreen() {
     setUseLocalTimezoneDefault(false);
     setSelectedRegionKey(key);
   }, []);
+  const [terminalActivationRefreshKey, setTerminalActivationRefreshKey] = useState(0);
+  const handleTerminalActivated = useCallback(() => {
+    setTerminalActivationRefreshKey((value) => value + 1);
+  }, []);
 
   const { refreshScanTerminalManually, scanLoading, terminalData } =
     useScanTerminalQuery({
       isPro,
       proAccessLoading: !hydrated || (proAccess.loading && !canUseLocalFullAccess),
+      terminalActivationRefreshKey,
       timezoneOffsetSeconds: useLocalTimezoneDefault ? localTimezoneOffsetSeconds : null,
       tradingRegion: selectedRegionKey,
     });
@@ -1800,6 +1820,7 @@ function ScanTerminalScreen() {
       generatedText={generatedText || ""}
       isEn={isEn}
       locale={locale}
+      onTerminalActivated={handleTerminalActivated}
       onRefresh={handleRefresh}
       refreshing={scanLoading}
       rows={filteredRows}
@@ -1821,6 +1842,7 @@ function ScanTerminalScreen() {
       setSelectedRegionKey={selectRegionManually}
       visibleRegions={visibleRegions}
       toggleRegion={toggleRegion}
+      terminalActivationRefreshKey={terminalActivationRefreshKey}
     />
   );
 }

frontend/components/dashboard/scan-terminal/LiveTemperatureThresholdChart.tsx

@@ -542,6 +542,7 @@ export function LiveTemperatureThresholdChart({
   isMaximized = false,
   disableClose = false,
   isActive = !compact,
+  activationRefreshKey = 0,
   slotIndex = 0,
 }: {
   isEn: boolean;
@@ -555,6 +556,7 @@ export function LiveTemperatureThresholdChart({
   isMaximized?: boolean;
   disableClose?: boolean;
   isActive?: boolean;
+  activationRefreshKey?: number;
   slotIndex?: number;
 }) {
   const [hourly, setHourly] = useState<HourlyForecast>(null);
@@ -986,6 +988,56 @@ export function LiveTemperatureThresholdChart({
     };
   }, [city, compact, isActive, isMaximized, targetResolution, markDetailDegraded, markDetailRequest, applySuccessfulHourlyDetail]);
 
+  useEffect(() => {
+    if (!activationRefreshKey) return;
+    if (!shouldPollLiveChart({ city, compact, isActive, isMaximized })) return;
+    if (typeof document !== "undefined" && document.visibilityState !== "visible") return;
+
+    let cancelled = false;
+
+    const refreshActivatedCachedDetail = () => {
+      const now = Date.now();
+      if (now - lastForegroundRefreshAtRef.current < 10_000) return;
+
+      lastForegroundRefreshAtRef.current = now;
+      lastPatchAtRef.current = now;
+      markDetailRequest("network");
+
+      fetchHourlyForecastForCity(city, { bypassLocalCache: true, resolution: targetResolution })
+        .then((data) => {
+          if (cancelled) return;
+          if (!data) {
+            markDetailDegraded();
+            return;
+          }
+          applySuccessfulHourlyDetail(data, { updateLiveTemp: true });
+        })
+        .catch(() => {
+          if (!cancelled) {
+            markDetailDegraded();
+          }
+        })
+        .finally(() => {
+          if (!cancelled) setIsHourlyLoading(false);
+        });
+    };
+
+    refreshActivatedCachedDetail();
+    return () => {
+      cancelled = true;
+    };
+  }, [
+    activationRefreshKey,
+    city,
+    compact,
+    isActive,
+    isMaximized,
+    targetResolution,
+    markDetailDegraded,
+    markDetailRequest,
+    applySuccessfulHourlyDetail,
+  ]);
+
   useEffect(() => {
     if (!shouldPollLiveChart({ city, compact, isActive, isMaximized })) return;
     let cancelled = false;
@@ -1004,9 +1056,9 @@ export function LiveTemperatureThresholdChart({
 
       lastForegroundRefreshAtRef.current = now;
       lastPatchAtRef.current = now;
-      markDetailRequest("force_refresh");
+      markDetailRequest("network");
 
-      fetchHourlyForecastForCity(city, { ignoreCache: true, resolution: targetResolution })
+      fetchHourlyForecastForCity(city, { bypassLocalCache: true, resolution: targetResolution })
         .then((data) => {
           if (cancelled) return;
           if (!data) {

frontend/components/dashboard/scan-terminal/__tests__/refreshCadencePolicy.test.ts

@@ -108,6 +108,20 @@ export async function runTests() {
       dashboardSource.includes('activeNavKey !== "thresholds"'),
     "terminal screen should preload the chart chunk once access is confirmed on the chart tab",
   );
+  assert(
+    dashboardSource.includes("terminalActivationRefreshKey") &&
+      dashboardSource.includes("setTerminalActivationRefreshKey") &&
+      querySource.includes("terminalActivationRefreshKey") &&
+      querySource.includes("handleTerminalActivationRefresh") &&
+      querySource.includes("fetchScanTerminal({ forceRefresh: false, showLoading: false })"),
+    "switching back to the terminal tab should trigger a lightweight scan refresh without waiting for browser focus events",
+  );
+  assert(
+    chartSource.includes("activationRefreshKey") &&
+      chartSource.includes("refreshActivatedCachedDetail") &&
+      chartSource.includes("fetchHourlyForecastForCity(city, { bypassLocalCache: true, resolution: targetResolution })"),
+    "switching back to the terminal tab should refresh visible chart detail through cached backend data without forcing external sources",
+  );
   assert(
     chartSource.includes("fetchHourlyForecastForCity(city, { ignoreCache: true, resolution: targetResolution })") &&
       chartSource.includes("setHourly((prev) => mergeHourlyWithLiveObservations(dataWithCurrentRow, prev, row))"),

frontend/components/dashboard/scan-terminal/__tests__/ssePatchArchitecture.test.ts

@@ -249,11 +249,12 @@ export function runTests() {
   );
   const foregroundRefreshBlock = chart.match(/const refreshForegroundFullDetail = \(\) => \{[\s\S]*?\n    \};/)?.[0] || "";
   assert(
-    foregroundRefreshBlock.includes("ignoreCache: true") &&
+    foregroundRefreshBlock.includes("bypassLocalCache: true") &&
     foregroundRefreshBlock.includes("fetchHourlyForecastForCity") &&
     foregroundRefreshBlock.includes("FOREGROUND_FULL_DETAIL_REFRESH_DEDUP_MS") &&
+    !foregroundRefreshBlock.includes("ignoreCache: true") &&
     !foregroundRefreshBlock.includes("setIsHourlyLoading(true)"),
-    "foreground resume refresh should update full detail in the background without showing the loading overlay or refetching fresh detail",
+    "foreground resume refresh should revalidate cached detail in the background without showing the loading overlay or forcing external sources",
   );
   assert(
     !chart.includes("/api/city/${encodeURIComponent(city)}/summary"),

frontend/components/dashboard/scan-terminal/use-scan-terminal-query.ts

@@ -85,11 +85,13 @@ function applyTerminalPatches(
 export function useScanTerminalQuery({
   isPro,
   proAccessLoading,
+  terminalActivationRefreshKey = 0,
   timezoneOffsetSeconds,
   tradingRegion,
 }: {
   isPro: boolean;
   proAccessLoading: boolean;
+  terminalActivationRefreshKey?: number;
   timezoneOffsetSeconds?: number | null;
   tradingRegion?: string;
 }) {
@@ -206,6 +208,27 @@ export function useScanTerminalQuery({
     };
   }, [fetchScanTerminal, isPro, proAccessLoading, scanRemote.status]);
 
+  useEffect(() => {
+    if (!terminalActivationRefreshKey) return;
+    if (typeof document !== "undefined" && document.visibilityState !== "visible") return;
+    if (proAccessLoading || !isPro || scanRemote.status === "loading") return;
+
+    const handleTerminalActivationRefresh = () => {
+      const now = Date.now();
+      if (now - lastForegroundScanRefreshAtRef.current < 10_000) return;
+      lastForegroundScanRefreshAtRef.current = now;
+      void fetchScanTerminal({ forceRefresh: false, showLoading: false });
+    };
+
+    handleTerminalActivationRefresh();
+  }, [
+    fetchScanTerminal,
+    isPro,
+    proAccessLoading,
+    scanRemote.status,
+    terminalActivationRefreshKey,
+  ]);
+
   // Preload adjacent regions in idle time for instant tab switches
   useEffect(() => {
     if (typeof window === "undefined" || !tradingRegion || !isPro) return;

tests/test_deployment_runtime_config.py

@@ -110,8 +110,8 @@ def test_docker_compose_isolates_collector_from_web_and_bot_services():
     assert "POLYWEATHER_OBSERVATION_COLLECTOR_ENABLED: 'false'" in web_block
     assert "POLYWEATHER_OBSERVATION_COLLECTOR_ENABLED: 'true'" in collector_block
     assert "POLYWEATHER_OBSERVATION_COLLECTOR_ENABLED: 'false'" in warmer_block
-    assert "POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY:-2}" in web_block
+    assert "POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_CONCURRENCY:-3}" in web_block
-    assert "POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY:-2}" in web_block
+    assert "POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY: ${POLYWEATHER_CITY_DETAIL_BATCH_GLOBAL_CONCURRENCY:-3}" in web_block
     assert "POLYWEATHER_CITY_DETAIL_BATCH_QUEUE_WAIT_MS: ${POLYWEATHER_CITY_DETAIL_BATCH_QUEUE_WAIT_MS:-3000}" in web_block
     assert "POLYWEATHER_CITY_DETAIL_BATCH_PARTIAL_TIMEOUT_MS: ${POLYWEATHER_CITY_DETAIL_BATCH_PARTIAL_TIMEOUT_MS:-8000}" in web_block
     assert "UVICORN_WORKERS: ${UVICORN_WORKERS:-2}" in web_block