debug replay implementation

web/src/utils/wsUtil.ts

@@ -0,0 +1,53 @@
+import { WsFeedMessage } from "@/api/ws";
+
+const EVENT_TOPICS = new Set([
+  "events",
+  "reviews",
+  "tracked_object_update",
+  "triggers",
+]);
+
+const SYSTEM_TOPICS = new Set([
+  "stats",
+  "model_state",
+  "job_state",
+  "embeddings_reindex_progress",
+  "audio_transcription_state",
+  "birdseye_layout",
+]);
+
+export function extractCameraName(message: WsFeedMessage): string | null {
+  // Try extracting from topic pattern: {camera}/motion, {camera}/audio/rms, etc.
+  const topicParts = message.topic.split("/");
+  if (
+    topicParts.length >= 2 &&
+    !EVENT_TOPICS.has(message.topic) &&
+    !SYSTEM_TOPICS.has(message.topic) &&
+    message.topic !== "camera_activity" &&
+    message.topic !== "audio_detections" &&
+    message.topic !== "restart" &&
+    message.topic !== "notification_test"
+  ) {
+    return topicParts[0];
+  }
+
+  // Try extracting from payload
+  try {
+    const data =
+      typeof message.payload === "string"
+        ? JSON.parse(message.payload)
+        : message.payload;
+
+    if (typeof data === "object" && data !== null) {
+      if ("camera" in data) return data.camera as string;
+      if ("after" in data && data.after?.camera)
+        return data.after.camera as string;
+      if ("before" in data && data.before?.camera)
+        return data.before.camera as string;
+    }
+  } catch {
+    // ignore parse errors
+  }
+
+  return null;
+}