优化

src/App.tsx

@@ -128,6 +128,10 @@ type ApiBuildingFunctionStat = {
   median_value?: number | null;
   data_count?: number | null;
 };
+type ApiBuildingFunctionStatBatchItem = {
+  key?: string;
+  data?: ApiBuildingFunctionStat[];
+};
 type ChartDatum = {
   groupName: string;
   minValue: number | null;
@@ -153,13 +157,36 @@ type SelectedContentNode = {
   color: string;
 };
 
-function formatWan(value: number) {
-  const wanValue = value / 10000;
-  const fractionDigits = Math.abs(wanValue) < 1 ? 4 : 2;
-  return `${wanValue.toLocaleString('zh-CN', {
+function formatNumber(value: number, maximumFractionDigits: number) {
+  return value.toLocaleString('zh-CN', {
     minimumFractionDigits: 0,
-    maximumFractionDigits: fractionDigits,
-  })}万`;
+    maximumFractionDigits,
+  });
+}
+
+function formatCostValue(value: number) {
+  const absValue = Math.abs(value);
+  if (absValue >= 10000) {
+    return `${formatNumber(value / 10000, 2)}万元`;
+  }
+  const fractionDigits = absValue > 0 && absValue < 1 ? 4 : 2;
+  return `${formatNumber(value, fractionDigits)}元`;
+}
+
+function formatAreaMetricValue(value: number) {
+  const absValue = Math.abs(value);
+  const fractionDigits = absValue > 0 && absValue < 1 ? 4 : 2;
+  return `${formatNumber(value, fractionDigits)}元/m²`;
+}
+
+function formatChartValue(value: number, metricKey: MetricKey, statisticKey: StatisticKey) {
+  if (statisticKey === 'dataCount') {
+    return formatNumber(value, 0);
+  }
+  if (metricKey === 'cost') {
+    return formatCostValue(value);
+  }
+  return formatAreaMetricValue(value);
 }
 
 function normalizeStat(row: ApiBuildingFunctionStat): ChartDatum {
@@ -354,6 +381,7 @@ function App() {
   const [chartQueryVersion, setChartQueryVersion] = useState(0);
   const [loading, setLoading] = useState(false);
   const [loadError, setLoadError] = useState<string | null>(null);
+  const [loadingHint, setLoadingHint] = useState('');
 
   const selectedStatistic = statisticOptions.find((option) => option.key === statisticKey) ?? statisticOptions[0];
   const selectedMetric = metricOptions.find((option) => option.key === metricKey) ?? metricOptions[0];
@@ -511,6 +539,9 @@ function App() {
   const updateMetricKey = (nextMetricKey: MetricKey) => {
     setMetricKey(nextMetricKey);
     setChartDataBySelection({});
+    setLoadError(null);
+    setLoadingHint('正在重新加载数据');
+    setLoading(true);
     setChartQueryVersion((version) => version + 1);
   };
 
@@ -546,37 +577,45 @@ function App() {
       if (selectedContentNodes.length === 0) {
         setChartDataBySelection({});
         setLoading(false);
+        setLoadingHint('');
         setLoadError(null);
         return;
       }
 
       setLoading(true);
+      setLoadingHint('正在加载数据');
       setLoadError(null);
       try {
-        const missingNodes = selectedContentNodes.filter((node) => !chartDataBySelection[getSelectionKey(node.contentKey, node.id)]);
-        if (missingNodes.length === 0) {
+        const hasAnyMissingNode = selectedContentNodes.some((node) => !chartDataBySelection[getSelectionKey(node.contentKey, node.id)]);
+        if (!hasAnyMissingNode) {
           setLoading(false);
+          setLoadingHint('');
           return;
         }
 
-        const results = await Promise.all(
-          missingNodes.map(async (node) => {
-            const search = new URLSearchParams({
-              groupBy: groupKey,
-              metric: metricKey,
+        const response = await fetch(`${API_BASE_URL}/zw/getBuildingFunctionCostStatsBatch`, {
+          method: 'POST',
+          signal: controller.signal,
+          headers: {
+            'Content-Type': 'application/json',
+          },
+          body: JSON.stringify({
+            groupBy: groupKey,
+            metric: metricKey,
+            nodes: selectedContentNodes.map((node) => ({
+              key: getSelectionKey(node.contentKey, node.id),
               contentKey: node.contentKey,
               nodeId: node.id,
-            });
-            const response = await fetch(`${API_BASE_URL}/zw/getBuildingFunctionCostStats?${search.toString()}`, {
-              signal: controller.signal,
-            });
-            if (!response.ok) {
-              throw new Error(`HTTP ${response.status}`);
-            }
-            const payload = (await response.json()) as { data?: ApiBuildingFunctionStat[] };
-            return [getSelectionKey(node.contentKey, node.id), (payload.data ?? []).map(normalizeStat).slice(0, 36)] as const;
+            })),
           }),
-        );
+        });
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}`);
+        }
+        const payload = (await response.json()) as { data?: ApiBuildingFunctionStatBatchItem[] };
+        const results = (payload.data ?? [])
+          .filter((item) => item.key)
+          .map((item) => [item.key as string, (item.data ?? []).map(normalizeStat).slice(0, 36)] as const);
         setChartDataBySelection((current) => ({
           ...current,
           ...Object.fromEntries(results),
@@ -587,6 +626,7 @@ function App() {
       } finally {
         if (!controller.signal.aborted) {
           setLoading(false);
+          setLoadingHint('');
         }
       }
     }
@@ -838,6 +878,14 @@ function App() {
         interpolation: {
           type: 'smooth',
         },
+        tooltip: {
+          renderer: ({ datum, yKey, yName }) => ({
+            title: yName,
+            data: [
+              { label: selectedMetric.label, value: formatChartValue(Number(datum[yKey]), metricKey, statisticKey) },
+            ],
+          }),
+        },
       })),
       axes: {
         x: {
@@ -867,13 +915,7 @@ function App() {
           label: {
             color: '#1f2933',
             fontSize: 12,
-            formatter: ({ value }) =>
-              !isCount
-                ? formatWan(Number(value))
-                : Number(value).toLocaleString('zh-CN', {
-                    minimumFractionDigits: 0,
-                    maximumFractionDigits: 0,
-                  }),
+            formatter: ({ value }) => formatChartValue(Number(value), metricKey, statisticKey),
           },
           line: {
             enabled: false,
@@ -902,7 +944,7 @@ function App() {
         enabled: true,
       },
     };
-  }, [chartDataBySelection, selectedContentNodes, selectedMetric.label, selectedStatistic.label, statisticKey]);
+  }, [chartDataBySelection, metricKey, selectedContentNodes, selectedMetric.label, selectedStatistic.label, statisticKey]);
 
   return (
     <main className="dashboard-shell">
@@ -969,11 +1011,16 @@ function App() {
                 </div>
               ) : null}
             </div>
-            {loading || loadError ? <div className="chart-status">{loading ? '加载中' : loadError}</div> : null}
+            {loading || loadError ? <div className="chart-status">{loading ? loadingHint || '加载中' : loadError}</div> : null}
             <button className="chart-fullscreen-button ag-charts-toolbar__button" type="button" title="全屏(F11)">
               <i className="anticon anticon-arrow-salt ag-charts-myButton-fullScreen ag-charts-diy-button" />
             </button>
             <AgCharts options={chartOptions} />
+            {loading ? (
+              <div className="chart-loading-mask" aria-live="polite" aria-busy="true">
+                <div className="chart-loading-panel">{loadingHint || '加载中'}</div>
+              </div>
+            ) : null}
           </div>
         </section>
 

src/styles.css

@@ -191,6 +191,29 @@ button {
   height: auto;
 }
 
+.chart-loading-mask {
+  position: absolute;
+  inset: 26px 0 0;
+  z-index: 13;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(255, 248, 240, 0.58);
+  backdrop-filter: blur(1px);
+}
+
+.chart-loading-panel {
+  min-width: 120px;
+  padding: 10px 14px;
+  border: 1px solid rgba(90, 82, 72, 0.16);
+  border-radius: 3px;
+  color: #262a33;
+  background: rgba(255, 252, 248, 0.96);
+  box-shadow: 0 6px 18px rgba(69, 54, 36, 0.12);
+  font-size: 14px;
+  line-height: 1.4;
+}
+
 .chart-frame .ag-charts-wrapper {
   --ag-charts-accent-color: #0078a8;
   --ag-charts-button-background-color: rgba(255, 249, 241, 0.72);