fix(burst-location): explain normal data source

src/components/olmap/BurstLocation/LocationResults.tsx

@@ -75,6 +75,33 @@ const toneStyles: Record<
 const formatDateTime = (value?: string) =>
   value ? dayjs(value).format("MM-DD HH:mm") : "-";
 
+const formatDateTimeRange = (start?: string, end?: string) => {
+  if (!start || !end) return "-";
+  return `${formatDateTime(start)} 至 ${formatDateTime(end)}`;
+};
+
+const getDataSourceLabel = (result: BurstLocationResult) =>
+  result.data_source === "simulation" ? "模拟方案" : "监测数据";
+
+const getNormalDataDescription = (result: BurstLocationResult) => {
+  switch (result.observed_source) {
+    case "simulation_scheme_burst_realtime_normal_timerange":
+      return "正常数据读取实时模拟结果，与爆管数据使用同一时间窗。";
+    case "scada_burst_scada_normal_timerange":
+      return "正常数据读取监测数据；未单独指定正常时间窗时，默认使用爆管时段前一天同一时段。";
+    case "scada_burst_payload_normal_timerange":
+      return "爆管数据读取监测数据，正常数据来自请求载荷。";
+    case "simulation_scheme_timerange":
+      return "历史方案记录：爆管数据和正常数据均读取方案模拟结果。";
+    case "scada_timerange":
+      return "历史方案记录：爆管数据和正常数据使用同一监测时间窗。";
+    case "request_payload":
+      return "爆管数据和正常数据均来自请求载荷。";
+    default:
+      return "正常数据按后端返回的数据源规则选择。";
+  }
+};
+
 const MetricCard = ({ label, value, hint, tone }: MetricCardProps) => {
   const style = toneStyles[tone];
   return (
@@ -214,6 +241,16 @@ const LocationResults: React.FC<Props> = ({ result }) => {
   const burstTime = result.scada_window?.burst_start
     ? formatDateTime(result.scada_window.burst_start)
     : "-";
+  const burstWindow = formatDateTimeRange(
+    result.scada_window?.burst_start,
+    result.scada_window?.burst_end,
+  );
+  const normalWindow = formatDateTimeRange(
+    result.scada_window?.normal_start,
+    result.scada_window?.normal_end,
+  );
+  const sourceLabel = getDataSourceLabel(result);
+  const normalDataDescription = getNormalDataDescription(result);
 
   return (
     <Box className="h-full overflow-auto p-1">
@@ -287,6 +324,31 @@ const LocationResults: React.FC<Props> = ({ result }) => {
             tone="green"
           />
         </Box>
+
+        <Box className="rounded-lg border border-gray-200 bg-gray-50 px-3 py-2">
+          <Box className="mb-1 flex flex-wrap items-center gap-1.5">
+            <Chip
+              size="small"
+              label={sourceLabel}
+              color={result.data_source === "simulation" ? "secondary" : "primary"}
+              sx={{ height: 22, fontSize: "0.72rem", fontWeight: 600 }}
+            />
+            <Typography variant="caption" className="text-gray-600">
+              正常数据选择说明
+            </Typography>
+          </Box>
+          <Typography variant="caption" className="block leading-5 text-gray-700">
+            {normalDataDescription}
+          </Typography>
+          <Typography variant="caption" className="mt-1 block leading-5 text-gray-500">
+            爆管窗口: {burstWindow}；正常窗口: {normalWindow}
+          </Typography>
+          {result.data_source === "simulation" && result.simulation_scheme?.name ? (
+            <Typography variant="caption" className="mt-1 block truncate text-purple-600">
+              爆管方案: {result.simulation_scheme.name}
+            </Typography>
+          ) : null}
+        </Box>
       </Box>
 
       {/* Candidate List */}