refactor: implement packet parsing heuristics and introduce device-level state caching to throttle database writes and vitals updates

fiveparaminte-main/main.py

@@ -91,18 +91,22 @@ async def lifespan(app: FastAPI):
         for s in servers:
             for sock in s.sockets:
                 active_ports.append(sock.getsockname()[1])
+        app.state.active_ports = active_ports
         logger.info(f"  Active listener ports: {active_ports}")
     else:
+        app.state.active_ports = []
         logger.error("No servers could be started! Check port availability and permissions.")
 
     # === Print startup banner ===
+    import os
+    port = int(os.environ.get("PORT", 8000))
     local_ips = _get_local_ips()
     model = settings.monitor_model
     print("\n" + "=" * 65)
     print(f"  Contec {model} Patient Monitor - Vital Signs Forwarder")
     print("=" * 65)
-    print(f"  DASHBOARD:      http://localhost:8000/api/dashboard")
-    print(f"  API Docs:       http://localhost:8000/docs")
+    print(f"  DASHBOARD:      http://localhost:{port}/api/dashboard")
+    print(f"  API Docs:       http://localhost:{port}/docs")
     print(f"  Contec Ports:   {settings.contec_ports}")
     print(f"  Monitor Model:  {model}")
     print(f"  API Target:     {settings.target_api_url}")
@@ -114,7 +118,7 @@ async def lifespan(app: FastAPI):
     print("=" * 65)
     print(f"  Waiting for {model} connections...")
     print(f"  On your monitor: System Setup > Network > CMS Settings")
-    print(f"  Set Server IP = one of the IPs above, Port = 511")
+    print(f"  Set Server IP = one of the IPs above, Port = {settings.contec_ports[0] if settings.contec_ports else 511}")
     print("=" * 65 + "\n")
     
     # Startup: Start the background retry task
@@ -165,5 +169,7 @@ if __name__ == "__main__":
     logger.info("Initializing Application...")
     
     # Run the FastAPI server. 
-    # Notice we run on port 8000 for the REST Dashboard, while HL7 is on settings.hl7_port (e.g. 6060)
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    # Notice we run on port 8000 (or PORT env var) for the REST Dashboard, while HL7 is on settings.hl7_port (e.g. 6060)
+    import os
+    port = int(os.environ.get("PORT", 8000))
+    uvicorn.run(app, host="0.0.0.0", port=port)