update sessionID backend

app.py

@@ -293,12 +293,22 @@ async def detect(websocket: WebSocket):
             subscription_parts = stream["subscriptionIdentifier"].split(';')
             display_identifier = subscription_parts[0] if subscription_parts else None
             
-            # Create context for pipeline execution (session_id will be generated by pipeline)
+            # Get backend session ID if available
+            backend_session_id = session_ids.get(display_identifier)
+            
+            # Create context for pipeline execution with backend sessionId
             pipeline_context = {
                 "camera_id": camera_id,
-                "display_id": display_identifier
+                "display_id": display_identifier,
+                "backend_session_id": backend_session_id
             }
             
+            if backend_session_id:
+                logger.info(f"🔥 USING BACKEND SESSION_ID: {backend_session_id} for camera {camera_id} (display: {display_identifier})")
+                logger.debug(f"Pipeline context includes backend session_id: {backend_session_id}")
+            else:
+                logger.debug(f"❌ No backend session_id available for display: {display_identifier} (session_ids: {session_ids})")
+            
             detection_result = run_pipeline(cropped_frame, model_tree, context=pipeline_context)
             process_time = (time.time() - start_time) * 1000
             logger.debug(f"Detection for camera {camera_id} completed in {process_time:.2f}ms")
@@ -306,13 +316,17 @@ async def detect(websocket: WebSocket):
             # Log the raw detection result for debugging
             logger.debug(f"Raw detection result for camera {camera_id}:\n{json.dumps(detection_result, indent=2, default=str)}")
             
-            # Extract session_id from pipeline result (generated during database record creation)
+            # Extract session_id from pipeline result (uses backend sessionId)
             session_id = None
             if detection_result and isinstance(detection_result, dict):
-                # Check if pipeline generated a session_id (happens when Car+Frontal detected together)
+                # Check if pipeline used backend session_id for operations
                 if "session_id" in detection_result:
                     session_id = detection_result["session_id"]
-                    logger.debug(f"Extracted session_id from pipeline result: {session_id}")
+                    logger.debug(f"Pipeline used session_id: {session_id}")
+                elif backend_session_id:
+                    # Use backend session_id even if pipeline didn't return it
+                    session_id = backend_session_id
+                    logger.debug(f"Using backend session_id for WebSocket response: {session_id}")
             
             # Process detection result - run_pipeline returns the primary detection directly
             if detection_result and isinstance(detection_result, dict) and "class" in detection_result:
@@ -376,10 +390,13 @@ async def detect(websocket: WebSocket):
                 }
             }
             
-            # Add session ID if available (generated by pipeline when Car+Frontal detected)
+            # Add session ID if available (from backend or pipeline operations)
             if session_id is not None:
                 detection_data["sessionId"] = session_id
+                logger.info(f"📤 WEBSOCKET RESPONSE with sessionId: {session_id} for camera {camera_id}")
                 logger.debug(f"Added session_id to WebSocket response: {session_id}")
+            else:
+                logger.debug(f"📤 WebSocket response WITHOUT sessionId for camera {camera_id}")
             
             if highest_confidence_detection.get("class") != "none":
                 confidence = highest_confidence_detection.get("confidence", 0.0)
@@ -1131,14 +1148,41 @@ async def detect(websocket: WebSocket):
                     display_identifier = payload.get("displayIdentifier")
                     session_id = payload.get("sessionId")
                     
+                    logger.info(f"🆔 BACKEND SESSIONID RECEIVED: displayId={display_identifier}, sessionId={session_id}")
+                    logger.debug(f"Full setSessionId payload: {payload}")
+                    
                     if display_identifier:
                         # Store session ID for this display
                         if session_id is None:
                             session_ids.pop(display_identifier, None)
-                            logger.info(f"Cleared session ID for display {display_identifier}")
+                            logger.info(f"🚫 BACKEND ENDED SESSION: Cleared session ID for display {display_identifier} - resetting tracking")
+                            
+                            # Reset tracking state for all cameras associated with this display
+                            with streams_lock:
+                                for camera_id, stream in streams.items():
+                                    if stream["subscriptionIdentifier"].startswith(display_identifier + ";"):
+                                        # Import here to avoid circular import
+                                        from siwatsystem.pympta import reset_tracking_state
+                                        model_id = stream.get("modelId", "unknown")
+                                        reset_tracking_state(camera_id, model_id, "backend session ended")
+                                        logger.info(f"Reset tracking for camera {camera_id} (display: {display_identifier})")
                         else:
                             session_ids[display_identifier] = session_id
-                            logger.info(f"Set session ID {session_id} for display {display_identifier}")
+                            logger.info(f"✅ BACKEND SESSION STARTED: Set session ID {session_id} for display {display_identifier}")
+                            logger.debug(f"Current session_ids dict: {session_ids}")
+                            
+                            # Clear waiting state for cameras associated with this display
+                            with streams_lock:
+                                for camera_id, stream in streams.items():
+                                    if stream["subscriptionIdentifier"].startswith(display_identifier + ";"):
+                                        from siwatsystem.pympta import get_camera_stability_data
+                                        model_id = stream.get("modelId", "unknown")
+                                        stability_data = get_camera_stability_data(camera_id, model_id)
+                                        session_state = stability_data["session_state"]
+                                        if session_state.get("waiting_for_backend_session", False):
+                                            session_state["waiting_for_backend_session"] = False
+                                            session_state["wait_start_time"] = 0.0
+                                            logger.info(f"🚀 PIPELINE UNBLOCKED: Backend sessionId {session_id} received - camera {camera_id} can proceed with pipeline")
                 
                 elif msg_type == "patchSession":
                     session_id = data.get("sessionId")

siwatsystem/pympta.py

@@ -22,8 +22,8 @@ logger = logging.getLogger("detector_worker.pympta")
 # Structure: {camera_id: {model_id: {"track_stability_counters": {track_id: count}, "stable_tracks": set(), "session_state": {...}}}}
 _camera_stability_tracking = {}
 
-# Timer-based cooldown configuration (for testing)
+# Session timeout configuration (waiting for backend sessionId)
-_cooldown_duration_seconds = 30
+_session_timeout_seconds = 15
 
 def validate_redis_config(redis_config: dict) -> bool:
     """Validate Redis configuration parameters."""
@@ -759,7 +759,8 @@ def get_camera_stability_data(camera_id, model_id):
             "stable_tracks": set(),
             "session_state": {
                 "active": True,
-                "cooldown_until": 0.0,
+                "waiting_for_backend_session": False,
+                "wait_start_time": 0.0,
                 "reset_tracker_on_resume": False
             }
         }
@@ -822,70 +823,50 @@ def check_stable_tracks(camera_id, model_id, regions_dict):
     has_stable_tracks = len(stable_detections) > 0
     return has_stable_tracks, stable_detections
 
-def start_cooldown_timer(camera_id, model_id):
+def reset_tracking_state(camera_id, model_id, reason="session ended"):
-    """Start 30-second cooldown timer after successful pipeline completion."""
+    """Reset tracking state after session completion or timeout."""
     stability_data = get_camera_stability_data(camera_id, model_id)
     session_state = stability_data["session_state"]
     
-    # Start timer-based cooldown
+    # Clear all tracking data for fresh start
-    cooldown_until = time.time() + _cooldown_duration_seconds
-    session_state["cooldown_until"] = cooldown_until
-    session_state["active"] = False
-    session_state["reset_tracker_on_resume"] = True  # Flag to reset YOLO tracker
-    
-    logger.info(f"Camera {camera_id}: 🛑 Starting {_cooldown_duration_seconds}s cooldown timer (until: {cooldown_until:.2f})")
-    
-    # DO NOT clear tracking state here - preserve it during cooldown
-    # Tracking state will be cleared when cooldown expires and new session starts
-
-def is_camera_active(camera_id, model_id):
-    """Check if camera should be processing detections (timer-based cooldown)."""
-    stability_data = get_camera_stability_data(camera_id, model_id)
-    session_state = stability_data["session_state"]
-    
-    # Check if cooldown timer has expired
-    if not session_state["active"]:
-        current_time = time.time()
-        cooldown_until = session_state["cooldown_until"]
-        remaining_time = cooldown_until - current_time
-        
-        if current_time >= cooldown_until:
-            session_state["active"] = True
-            session_state["reset_tracker_on_resume"] = True  # Ensure tracker reset flag is set
-            
-            # Clear tracking state NOW - before new detection session starts
     stability_data["track_stability_counters"].clear()
     stability_data["stable_tracks"].clear()
+    session_state["active"] = True
+    session_state["waiting_for_backend_session"] = False
+    session_state["wait_start_time"] = 0.0
+    session_state["reset_tracker_on_resume"] = True
     
-            logger.info(f"Camera {camera_id}: 📢 Cooldown timer ended, resuming detection with fresh track IDs")
+    logger.info(f"Camera {camera_id}: 🔄 Reset tracking state - {reason}")
     logger.info(f"Camera {camera_id}: 🧹 Cleared stability counters and stable tracks for fresh session")
-        else:
-            logger.debug(f"Camera {camera_id}: Still in cooldown - {remaining_time:.1f}s remaining")
 
-    return session_state["active"]
+def is_camera_active(camera_id, model_id):
+    """Check if camera should be processing detections."""
+    stability_data = get_camera_stability_data(camera_id, model_id)
+    session_state = stability_data["session_state"]
+    
+    # Check if waiting for backend sessionId has timed out
+    if session_state.get("waiting_for_backend_session", False):
+        current_time = time.time()
+        wait_start_time = session_state.get("wait_start_time", 0)
+        elapsed_time = current_time - wait_start_time
+        
+        if elapsed_time >= _session_timeout_seconds:
+            logger.warning(f"Camera {camera_id}: Backend sessionId timeout ({_session_timeout_seconds}s) - resetting tracking")
+            reset_tracking_state(camera_id, model_id, "backend sessionId timeout")
+            return True
+        else:
+            remaining_time = _session_timeout_seconds - elapsed_time
+            logger.debug(f"Camera {camera_id}: Still waiting for backend sessionId - {remaining_time:.1f}s remaining")
+            return False
+    
+    return session_state.get("active", True)
 
 def cleanup_camera_stability(camera_id):
-    """Clean up stability tracking data when a camera is disconnected, preserving cooldown timers."""
+    """Clean up stability tracking data when a camera is disconnected."""
     global _camera_stability_tracking
     if camera_id in _camera_stability_tracking:
-        # Check if any models are still in cooldown before cleanup
-        models_in_cooldown = []
-        for model_id, model_data in _camera_stability_tracking[camera_id].items():
-            session_state = model_data.get("session_state", {})
-            if not session_state.get("active", True) and time.time() < session_state.get("cooldown_until", 0):
-                cooldown_remaining = session_state["cooldown_until"] - time.time()
-                models_in_cooldown.append((model_id, cooldown_remaining))
-                logger.warning(f"⚠️ Camera {camera_id}: Model {model_id} is in cooldown ({cooldown_remaining:.1f}s remaining) - preserving timer!")
-        
-        if models_in_cooldown:
-            # DO NOT clear any tracking data during cooldown - preserve everything
-            logger.warning(f"⚠️ Camera {camera_id}: PRESERVING ALL data during cooldown - no cleanup performed!")
-            logger.warning(f"   - Track IDs will reset only AFTER cooldown expires")
-            logger.warning(f"   - Stability counters preserved until cooldown ends")
-        else:
-            # Safe to delete everything - no active cooldowns
         del _camera_stability_tracking[camera_id]
-            logger.info(f"Cleaned up stability tracking data for camera {camera_id} (no active cooldowns)")
+        logger.info(f"Cleaned up stability tracking data for camera {camera_id}")
 
 def validate_pipeline_execution(node, regions_dict):
     """
@@ -955,6 +936,16 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
     - Context passing for session/camera information
     """
     try:
+        # Extract backend sessionId from context at the start of function
+        backend_session_id = context.get("backend_session_id") if context else None
+        camera_id = context.get("camera_id", "unknown") if context else "unknown"
+        model_id = node.get("modelId", "unknown")
+        
+        if backend_session_id:
+            logger.info(f"🔑 PIPELINE USING BACKEND SESSION_ID: {backend_session_id} for camera {camera_id}")
+        else:
+            logger.debug(f"❌ No backend session_id in pipeline context for camera {camera_id}")
+        
         task = getattr(node["model"], "task", None)
 
         # ─── Classification stage ───────────────────────────────────
@@ -992,11 +983,8 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
             return (det, None) if return_bbox else det
 
         # ─── Session management check ───────────────────────────────────────
-        camera_id = context.get("camera_id", "unknown") if context else "unknown"
-        model_id = node.get("modelId", "unknown")
-        
         if not is_camera_active(camera_id, model_id):
-            logger.info(f"⏰ Camera {camera_id}: Tracker stopped - in cooldown period, skipping all detection")
+            logger.debug(f"⏰ Camera {camera_id}: Waiting for backend sessionId, skipping pipeline")
             return (None, None) if return_bbox else None
 
         # ─── Detection stage - Using structured detection function ──────────────────
@@ -1026,7 +1014,27 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
                 primary_bbox = primary_detection.get("bbox", [0, 0, 0, 0])
                 return (primary_detection, primary_bbox) if return_bbox else primary_detection
             else:
-                logger.info(f"Camera {camera_id}: Stable tracks {[det[1] for det in stable_detections]} detected - proceeding with full pipeline")
+                logger.info(f"Camera {camera_id}: Stable tracks {[det[1] for det in stable_detections]} detected - checking backend sessionId")
+                
+                # Check if we need to wait for backend sessionId
+                if not backend_session_id:
+                    logger.info(f"Camera {camera_id}: Stable car detected, waiting for backend sessionId...")
+                    stability_data = get_camera_stability_data(camera_id, model_id)
+                    session_state = stability_data["session_state"]
+                    
+                    if not session_state.get("waiting_for_backend_session", False):
+                        # Start waiting for backend sessionId
+                        session_state["waiting_for_backend_session"] = True
+                        session_state["wait_start_time"] = time.time()
+                        logger.info(f"⏳ Camera {camera_id}: WAITING FOR BACKEND SESSION_ID (timeout: {_session_timeout_seconds}s)")
+                        logger.info(f"📡 Stable car detected - sending imageDetection to trigger backend session creation")
+                    
+                    # Return detection to signal backend, but don't proceed with pipeline
+                    primary_detection = max(all_detections, key=lambda x: x["confidence"]) if all_detections else {"class": "none", "confidence": 0.0, "bbox": [0, 0, 0, 0]}
+                    primary_bbox = primary_detection.get("bbox", [0, 0, 0, 0])
+                    return (primary_detection, primary_bbox) if return_bbox else primary_detection
+                
+                logger.info(f"🚀 Camera {camera_id}: BACKEND SESSION_ID AVAILABLE ({backend_session_id}) - proceeding with full pipeline")
 
         # ─── Pre-validate pipeline execution ────────────────────────
         pipeline_valid, missing_branches = validate_pipeline_execution(node, regions_dict)
@@ -1043,36 +1051,40 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
             **(context or {})
         }
         
-        # ─── Create initial database record when valid detection found ────
+        # ─── Check backend sessionId before database operations ────
+        
         if node.get("db_manager") and regions_dict:
-            # Create database record if we have any valid detection (after class mapping and filtering)
             detected_classes = list(regions_dict.keys())
-            logger.debug(f"Valid detections found for database record: {detected_classes}")
+            logger.debug(f"Valid detections found - checking for backend sessionId: {detected_classes}")
             
-            # Always create record if we have valid detections that passed all filters
+            if not backend_session_id:
+                logger.error(f"🚫 Camera {camera_id}: No backend sessionId available - cannot proceed with database operations")
+                logger.error(f"🚫 Camera {camera_id}: Pipeline requires backend sessionId for Redis/PostgreSQL operations")
+                # Reset tracking and wait for new stable car
+                reset_tracking_state(camera_id, model_id, "missing backend sessionId")
+                return (None, None) if return_bbox else None
+            
+            # Use backend sessionId for database operations
             if detected_classes:
-                # Generate UUID session_id since client session is None for now
-                import uuid as uuid_lib
                 from datetime import datetime
-                generated_session_id = str(uuid_lib.uuid4())
-                
-                # Insert initial detection record
                 display_id = detection_result.get("display_id", "unknown")
                 timestamp = datetime.now().strftime("%Y-%m-%dT%H-%M-%S")
                 
                 inserted_session_id = node["db_manager"].insert_initial_detection(
                     display_id=display_id,
                     captured_timestamp=timestamp,
-                    session_id=generated_session_id
+                    session_id=backend_session_id  # Use backend sessionId
                 )
                 
                 if inserted_session_id:
-                    # Update detection_result with the generated session_id for actions and branches
                     detection_result["session_id"] = inserted_session_id
-                    detection_result["timestamp"] = timestamp  # Update with proper timestamp
+                    detection_result["timestamp"] = timestamp
-                    logger.info(f"Created initial database record with session_id: {inserted_session_id}")
+                    logger.info(f"💾 DATABASE RECORD CREATED with backend session_id: {inserted_session_id}")
+                    logger.debug(f"Database record: display_id={display_id}, timestamp={timestamp}")
                 else:
-                logger.debug("Database record not created - no valid detections found after filtering")
+                    logger.error(f"Failed to create database record with backend session_id: {backend_session_id}")
+                    reset_tracking_state(camera_id, model_id, "database insertion failed")
+                    return (None, None) if return_bbox else None
         
         # Execute actions for root node only if it doesn't have branches
         # Branch nodes with actions will execute them after branch processing
@@ -1194,9 +1206,8 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
         if node.get("parallelActions") and "branch_results" in detection_result:
             execute_parallel_actions(node, frame, detection_result, regions_dict)
             
-            # ─── Start 30s cooldown timer after successful pipeline completion ─────────────────
+            # ─── Note: Tracking will be reset when backend sends setSessionId: null ─────────────────
-            start_cooldown_timer(camera_id, model_id)
+            logger.info(f"Camera {camera_id}: Pipeline completed successfully - waiting for backend to end session")
-            logger.info(f"Camera {camera_id}: Pipeline completed successfully, starting 30s cooldown")
 
         # ─── Execute actions after successful detection AND branch processing ──────────
         # This ensures detection nodes (like frontal_detection_v1) execute their actions
@@ -1220,5 +1231,6 @@ def run_pipeline(frame, node: dict, return_bbox: bool=False, context=None):
 
     except Exception as e:
         logger.error(f"Error in node {node.get('modelId')}: {e}")
+        import traceback
         traceback.print_exc()
         return (None, None) if return_bbox else None