Add HTML5 operations SSE updates

services/api-server/src/api_server/main.py

@@ -1653,6 +1653,24 @@ async def html5_operation_summary() -> Response:
     )
 
 
+@app.get("/html5/operations/events")
+async def html5_operations_events(once: bool = False) -> StreamingResponse:
+    def stream_operations():
+        while True:
+            jobs = _html5_operation_jobs()
+            yield _html5_sse_event("operations-summary", render_html5_operation_summary(jobs))
+            yield _html5_sse_event("operations-jobs", render_html5_operation_rows(jobs))
+            if once:
+                break
+            time.sleep(3)
+
+    return StreamingResponse(
+        stream_operations(),
+        media_type="text/event-stream",
+        headers={"Cache-Control": "no-cache", "X-Accel-Buffering": "no"},
+    )
+
+
 @app.get("/html5/projects/{project_id}/editor")
 async def html5_project_editor(project_id: str, q: str = "") -> Response:
     try:
@@ -1683,7 +1701,7 @@ async def html5_project_events(project_id: str, once: bool = False) -> Streaming
                 fragment = render_html5_status(project_id, snapshot)
             except HTTPException as error:
                 fragment = f'<span>project: {project_id}</span><span>error: {error.detail}</span>'
-            yield f"event: status\ndata: {fragment}\n\n"
+            yield _html5_sse_event("status", fragment)
             if once:
                 break
             time.sleep(5)
@@ -8357,6 +8375,11 @@ def _html5_operation_jobs() -> list[OperationJob]:
     return sorted(_operations.jobs.values(), key=lambda job: job.updated_at, reverse=True)[:50]
 
 
+def _html5_sse_event(event: str, fragment: str) -> str:
+    data = "\n".join(f"data: {line}" for line in fragment.splitlines())
+    return f"event: {event}\n{data}\n\n"
+
+
 def _project_summaries() -> list[ProjectSummaryResponse]:
     project_ids = set(_project_setup.keys())
     stored_snapshots = _storage.list_snapshot_refs()