588 lines
21 KiB
Python
588 lines
21 KiB
Python
import asyncio
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import json
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import logging
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import socket
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from typing import List
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from pydantic import BaseModel
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from typing import List, Optional
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from fastapi import APIRouter, Depends, HTTPException, WebSocket, WebSocketDisconnect
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from fastapi.responses import HTMLResponse
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from sqlalchemy.orm import Session
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from sqlalchemy import or_
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from database import get_db
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from models import Device, Patient, VitalReading, TransmissionLog
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logger = logging.getLogger(__name__)
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router = APIRouter()
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class PatientAssignRequest(BaseModel):
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device_id: str
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mrn: str
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name: Optional[str] = None
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dob: Optional[str] = None
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gender: Optional[str] = None
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bed_id: Optional[str] = None
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# === WebSocket Manager for real-time vitals push ===
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class VitalsWebSocketManager:
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"""Manages WebSocket connections for live vitals streaming."""
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def __init__(self):
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self.active_connections: List[WebSocket] = []
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async def connect(self, websocket: WebSocket):
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await websocket.accept()
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self.active_connections.append(websocket)
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logger.info(f"WebSocket client connected ({len(self.active_connections)} active)")
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def disconnect(self, websocket: WebSocket):
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if websocket in self.active_connections:
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self.active_connections.remove(websocket)
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logger.info(f"WebSocket client disconnected ({len(self.active_connections)} active)")
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async def broadcast_vitals(self, vitals_data: dict):
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"""Send vitals to all connected WebSocket clients."""
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dead = []
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for connection in self.active_connections:
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try:
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await connection.send_json(vitals_data)
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except Exception:
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dead.append(connection)
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for d in dead:
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self.disconnect(d)
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# Global singleton
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ws_manager = VitalsWebSocketManager()
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def get_ws_manager() -> VitalsWebSocketManager:
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return ws_manager
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# === Dashboard HTML Route ===
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@router.get("/dashboard", response_class=HTMLResponse)
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def serve_dashboard():
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"""Serve the vitals monitoring dashboard."""
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import os
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dashboard_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), "static", "dashboard.html")
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try:
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with open(dashboard_path, "r", encoding="utf-8") as f:
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return HTMLResponse(content=f.read())
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except FileNotFoundError:
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return HTMLResponse(content="<h1>Dashboard not found</h1><p>static/dashboard.html is missing</p>", status_code=404)
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# === API Endpoints ===
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@router.get("/health")
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def health_check():
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return {"status": "ok", "service": "Patient Monitor Vital Signs Forwarder"}
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@router.get("/status")
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def get_system_status(db: Session = Depends(get_db)):
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total_devices = db.query(Device).count()
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active_devices = db.query(Device).filter(Device.status == "active").count()
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total_readings = db.query(VitalReading).count()
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pending_transmissions = db.query(VitalReading).filter(VitalReading.transmitted == False).count()
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return {
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"total_devices": total_devices,
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"active_devices": active_devices,
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"total_readings_stored": total_readings,
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"pending_transmissions": pending_transmissions
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}
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@router.get("/devices")
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def list_devices(db: Session = Depends(get_db)):
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devices = db.query(Device).all()
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return devices
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@router.get("/latest-readings")
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def get_latest_readings(
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limit: int = 10,
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mrn: Optional[str] = None,
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name: Optional[str] = None,
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dob: Optional[str] = None,
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device_id: Optional[str] = None,
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db: Session = Depends(get_db)
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):
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query = db.query(VitalReading)
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if device_id:
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query = query.filter(VitalReading.device_id == device_id)
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patient_criteria = []
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if mrn:
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mrn_clean = mrn.strip()
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patient_criteria.append(or_(Patient.mrn == mrn_clean, Patient.patient_id == mrn_clean))
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if name:
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name_clean = name.strip()
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patient_criteria.append(Patient.name.ilike(f"%{name_clean}%"))
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if dob:
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dob_clean = dob.strip().replace("-", "").replace("/", "")
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patient_criteria.append(or_(
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Patient.dob.ilike(f"%{dob.strip()}%"),
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Patient.dob.ilike(f"%{dob_clean}%"),
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Patient.dob.ilike(f"%{dob.strip()[:4]}%") if len(dob.strip()) >= 4 else False
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))
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if patient_criteria:
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from sqlalchemy import and_
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matching_patients = db.query(Patient).filter(and_(*patient_criteria)).all()
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if not matching_patients:
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return []
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matching_dev_ids = [p.device_id for p in matching_patients if p.device_id]
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matching_mrns = [p.mrn for p in matching_patients if p.mrn] + [p.patient_id for p in matching_patients if p.patient_id]
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conds = []
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if matching_mrns:
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conds.append(VitalReading.patient_id.in_(matching_mrns))
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if matching_dev_ids:
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conds.append(VitalReading.device_id.in_(matching_dev_ids))
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if conds:
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query = query.filter(or_(*conds))
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else:
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return []
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readings = query.order_by(VitalReading.timestamp.desc()).limit(limit).all()
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return readings
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@router.get("/patients")
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def list_patients(db: Session = Depends(get_db)):
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"""
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List all patients with their assigned device and latest vitals readings.
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"""
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patients = db.query(Patient).filter(Patient.patient_id != "UNKNOWN", Patient.mrn != "UNKNOWN").all()
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results = []
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for p in patients:
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# Find latest vitals for this patient or this patient's assigned device
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latest_reading = (
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db.query(VitalReading)
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.filter(
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or_(
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VitalReading.patient_id == p.mrn,
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VitalReading.patient_id == p.patient_id,
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(VitalReading.device_id == p.device_id) if p.device_id else False
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)
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)
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.order_by(VitalReading.timestamp.desc())
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.first()
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)
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device = db.query(Device).filter(Device.device_id == p.device_id).first() if p.device_id else None
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results.append({
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"id": p.id,
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"patient_id": p.patient_id,
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"mrn": p.mrn or p.patient_id,
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"name": p.name or "Unknown",
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"gender": p.gender,
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"dob": p.dob,
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"bed_id": p.bed_id,
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"device_id": p.device_id,
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"device_status": device.status if device else "unassigned",
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"device_ip": device.ip_address if device else None,
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"latest_vitals": {
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"heart_rate": latest_reading.heart_rate if latest_reading else None,
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"spo2": latest_reading.spo2 if latest_reading else None,
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"systolic_bp": latest_reading.systolic_bp if latest_reading else None,
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"diastolic_bp": latest_reading.diastolic_bp if latest_reading else None,
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"map_bp": latest_reading.map_bp if latest_reading else None,
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"respiratory_rate": latest_reading.respiratory_rate if latest_reading else None,
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"temperature": latest_reading.temperature if latest_reading else None,
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"timestamp": latest_reading.timestamp.isoformat() if (latest_reading and latest_reading.timestamp) else None,
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} if latest_reading else None
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})
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return results
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@router.post("/patient/assign")
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@router.post("/patients/assign")
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async def assign_patient(req: PatientAssignRequest, db: Session = Depends(get_db)):
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"""
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Assign patient demographics (MRN, Name, DOB, Gender, Bed) to a specific monitor/device_id.
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"""
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from contec_server import set_assigned_patient
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device_id = req.device_id.strip()
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mrn = req.mrn.strip() if req.mrn else ""
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if not device_id:
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raise HTTPException(status_code=400, detail="device_id is required")
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if not mrn or mrn.upper() in ("UNKNOWN", "CLEAR", "NONE", "UNASSIGN"):
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# Clear assignment from in-memory cache and DB
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from contec_server import device_patient_map, device_cache
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if device_id in device_patient_map:
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del device_patient_map[device_id]
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if device_id in device_cache:
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cached = device_cache[device_id]
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cached.patient_id = "UNKNOWN"
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cached.patient_name = None
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cached.patient_gender = None
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cached.patient_dob = None
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cached.bed_id = None
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db.query(Patient).filter(Patient.device_id == device_id).update({"device_id": None})
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db.commit()
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try:
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await ws_manager.broadcast_vitals({
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"event": "patient_assigned",
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"device_id": device_id,
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"patient_id": "UNKNOWN",
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"mrn": "UNKNOWN",
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"patient_name": None,
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"name": None,
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"patient_gender": None,
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"gender": None,
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"patient_dob": None,
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"dob": None,
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"bed_id": None
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})
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except Exception:
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pass
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return {
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"status": "success",
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"message": f"Device {device_id} unassigned successfully"
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}
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# 1. Clear device_id from any other patient previously holding this device
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existing_for_device = db.query(Patient).filter(Patient.device_id == device_id).all()
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for p in existing_for_device:
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if p.mrn != mrn and p.patient_id != mrn:
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p.device_id = None
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# 2. Find or create patient by MRN
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patient = db.query(Patient).filter(or_(Patient.mrn == mrn, Patient.patient_id == mrn)).first()
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if not patient:
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patient = Patient(
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patient_id=mrn,
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mrn=mrn,
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name=req.name or "Unknown",
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gender=req.gender,
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dob=req.dob,
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bed_id=req.bed_id,
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device_id=device_id
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)
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db.add(patient)
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else:
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patient.patient_id = mrn
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patient.mrn = mrn
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if req.name is not None:
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patient.name = req.name
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if req.gender is not None:
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patient.gender = req.gender
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if req.dob is not None:
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patient.dob = req.dob
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if req.bed_id is not None:
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patient.bed_id = req.bed_id
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patient.device_id = device_id
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# 3. Associate recent readings for this device that were marked "UNKNOWN"
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db.query(VitalReading).filter(
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VitalReading.device_id == device_id,
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VitalReading.patient_id == "UNKNOWN"
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).update({"patient_id": mrn})
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db.commit()
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db.refresh(patient)
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# 4. Update in-memory server mapping
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p_data = {
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"patient_id": patient.mrn,
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"mrn": patient.mrn,
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"name": patient.name,
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"gender": patient.gender,
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"dob": patient.dob,
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"bed_id": patient.bed_id,
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}
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set_assigned_patient(device_id, p_data)
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# 5. Broadcast to connected WebSocket clients
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try:
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await ws_manager.broadcast_vitals({
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"event": "patient_assigned",
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"device_id": device_id,
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"patient_id": patient.mrn,
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"mrn": patient.mrn,
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"patient_name": patient.name,
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"name": patient.name,
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"patient_gender": patient.gender,
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"gender": patient.gender,
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"patient_dob": patient.dob,
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"dob": patient.dob,
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"bed_id": patient.bed_id,
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})
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except Exception as e:
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logger.debug(f"Broadcast of patient_assigned failed: {e}")
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return {
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"status": "success",
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"message": f"Patient {patient.name} ({mrn}) assigned to device {device_id}",
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"patient": p_data
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}
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@router.get("/patient/{identifier}/history")
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def get_patient_history(identifier: str, limit: int = 100, db: Session = Depends(get_db)):
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"""
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Fetch patient profile, assigned machine, and readings history by MRN, patient_id, or name.
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"""
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patient = db.query(Patient).filter(
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or_(
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Patient.mrn == identifier,
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Patient.patient_id == identifier,
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Patient.name.ilike(f"%{identifier}%")
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)
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).first()
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if not patient:
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raise HTTPException(status_code=404, detail="Patient not found")
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readings = (
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db.query(VitalReading)
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.filter(or_(VitalReading.patient_id == patient.mrn, VitalReading.patient_id == patient.patient_id))
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.order_by(VitalReading.timestamp.desc())
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.limit(limit)
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.all()
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)
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device = db.query(Device).filter(Device.device_id == patient.device_id).first() if patient.device_id else None
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return {
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"patient": {
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"mrn": patient.mrn or patient.patient_id,
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"name": patient.name,
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"gender": patient.gender,
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"dob": patient.dob,
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"bed_id": patient.bed_id,
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"device_id": patient.device_id,
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},
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"device": {
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"device_id": device.device_id if device else None,
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"ip_address": device.ip_address if device else None,
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"status": device.status if device else "offline",
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} if device else None,
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"readings_count": len(readings),
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"readings": readings
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}
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@router.get("/readings")
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def get_readings(
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device_id: Optional[str] = None,
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patient_id: Optional[str] = None,
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mrn: Optional[str] = None,
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name: Optional[str] = None,
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gender: Optional[str] = None,
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dob: Optional[str] = None,
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limit: int = 50,
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offset: int = 0,
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db: Session = Depends(get_db)
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):
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"""
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Fetch vital readings filtered by patient MRN, Name, DOB, Gender, or Device ID.
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"""
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query = db.query(VitalReading)
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target_mrn = mrn or patient_id
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if target_mrn:
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query = query.filter(VitalReading.patient_id == target_mrn)
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# If filtered by patient demographics (name, gender, dob)
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if name or gender or dob:
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p_query = db.query(Patient)
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if name:
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p_query = p_query.filter(Patient.name.ilike(f"%{name}%"))
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if gender:
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p_query = p_query.filter(Patient.gender.ilike(f"%{gender}%"))
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if dob:
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p_query = p_query.filter(Patient.dob.ilike(f"%{dob}%"))
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matching_patients = p_query.all()
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matching_mrns = [p.mrn for p in matching_patients if p.mrn] + [p.patient_id for p in matching_patients if p.patient_id]
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matching_devices = [p.device_id for p in matching_patients if p.device_id]
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query = query.filter(
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or_(
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VitalReading.patient_id.in_(matching_mrns),
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VitalReading.device_id.in_(matching_devices)
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)
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)
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if device_id:
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query = query.filter(VitalReading.device_id == device_id)
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return query.order_by(VitalReading.timestamp.desc()).offset(offset).limit(limit).all()
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@router.get("/transmission-logs")
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def get_transmission_logs(limit: int = 50, db: Session = Depends(get_db)):
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logs = db.query(TransmissionLog).order_by(TransmissionLog.timestamp.desc()).limit(limit).all()
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return logs
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@router.post("/test-api")
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def test_target_api_connection():
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"""
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Endpoint to trigger a test POST to the target API.
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"""
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from config import settings
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return {
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"message": "Test triggered",
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"target_url": settings.target_api_url
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}
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|
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@router.get("/network-info")
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def get_network_info():
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"""
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Returns this PC's local IP addresses.
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Useful for configuring the CMS7000PLUS monitor's CMS Server IP.
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"""
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from config import settings
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ips = []
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try:
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for info in socket.getaddrinfo(socket.gethostname(), None, socket.AF_INET):
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ip = info[4][0]
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if ip not in ips and not ip.startswith('127.'):
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ips.append(ip)
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except Exception:
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pass
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# Find primary IP
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primary_ip = None
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try:
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s.connect(('8.8.8.8', 80))
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primary_ip = s.getsockname()[0]
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s.close()
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if primary_ip not in ips:
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ips.insert(0, primary_ip)
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except Exception:
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pass
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return {
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"hostname": socket.gethostname(),
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"ip_addresses": ips,
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"primary_ip": primary_ip or (ips[0] if ips else None),
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"monitor_model": settings.monitor_model,
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"contec_ports": settings.contec_ports,
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"instructions": [
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f"1. Connect your {settings.monitor_model} to this PC via Ethernet",
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f"2. On the monitor: System Setup → Network → CMS Settings",
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f"3. Set Server IP to: {primary_ip or 'your PC IP'}",
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f"4. Set Server Port to: {settings.contec_ports[0] if settings.contec_ports else 511}",
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f"5. Enable the CMS connection",
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f"6. The dashboard will show data automatically"
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]
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}
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# === Push Vitals Endpoint (for local-to-cloud sync) ===
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from schemas import NormalizedVitals
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from datetime import datetime, timezone
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@router.post("/push-vitals")
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async def push_vitals(vitals: NormalizedVitals, api_key: Optional[str] = None, db: Session = Depends(get_db)):
|
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"""
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Receive vitals pushed from a local instance and store + broadcast them to connected WebSocket clients.
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"""
|
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from config import settings
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|
if settings.api_token and api_key != settings.api_token:
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raise HTTPException(status_code=401, detail="Invalid or missing api_key")
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|
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try:
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now = datetime.now(timezone.utc)
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|
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# 1. Device tracking
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device = db.query(Device).filter(Device.device_id == vitals.device_id).first()
|
|
if not device:
|
|
device = Device(
|
|
device_id=vitals.device_id,
|
|
ip_address=vitals.ip_address or "remote-push",
|
|
status="active",
|
|
last_seen=now
|
|
)
|
|
db.add(device)
|
|
else:
|
|
if vitals.ip_address:
|
|
device.ip_address = vitals.ip_address
|
|
device.status = "active"
|
|
device.last_seen = now
|
|
|
|
# 2. Patient tracking
|
|
mrn = vitals.patient_id
|
|
patient = None
|
|
if mrn and mrn != "UNKNOWN":
|
|
patient = db.query(Patient).filter(or_(Patient.mrn == mrn, Patient.patient_id == mrn)).first()
|
|
if not patient:
|
|
patient = Patient(
|
|
patient_id=mrn,
|
|
mrn=mrn,
|
|
name=vitals.patient_name or "Unknown",
|
|
gender=vitals.patient_gender,
|
|
dob=vitals.patient_dob,
|
|
bed_id=vitals.bed_id,
|
|
device_id=vitals.device_id
|
|
)
|
|
db.add(patient)
|
|
else:
|
|
if vitals.patient_name and vitals.patient_name != "Unknown":
|
|
patient.name = vitals.patient_name
|
|
if vitals.patient_gender:
|
|
patient.gender = vitals.patient_gender
|
|
if vitals.patient_dob:
|
|
patient.dob = vitals.patient_dob
|
|
if vitals.bed_id:
|
|
patient.bed_id = vitals.bed_id
|
|
patient.device_id = vitals.device_id
|
|
elif vitals.device_id:
|
|
# Check if there's already a patient assigned to this device
|
|
patient = db.query(Patient).filter(Patient.device_id == vitals.device_id, Patient.patient_id != "UNKNOWN").first()
|
|
if patient:
|
|
mrn = patient.mrn or patient.patient_id
|
|
|
|
# 3. Create VitalReading
|
|
reading = VitalReading(
|
|
device_id=vitals.device_id,
|
|
patient_id=mrn or "UNKNOWN",
|
|
timestamp=vitals.timestamp or now,
|
|
heart_rate=vitals.heart_rate,
|
|
spo2=vitals.spo2,
|
|
systolic_bp=vitals.systolic_bp,
|
|
diastolic_bp=vitals.diastolic_bp,
|
|
map_bp=vitals.map_bp,
|
|
respiratory_rate=vitals.respiratory_rate,
|
|
temperature=vitals.temperature,
|
|
transmitted=True
|
|
)
|
|
db.add(reading)
|
|
db.commit()
|
|
db.refresh(reading)
|
|
|
|
# 4. Broadcast to WebSocket clients
|
|
vitals_dict = vitals.model_dump(mode="json")
|
|
vitals_dict["mrn"] = mrn or (patient.mrn if patient else None)
|
|
vitals_dict["patient_id"] = vitals_dict["mrn"] or vitals.patient_id
|
|
vitals_dict["name"] = vitals.patient_name or (patient.name if patient else None)
|
|
vitals_dict["patient_name"] = vitals_dict["name"]
|
|
vitals_dict["gender"] = vitals.patient_gender or (patient.gender if patient else None)
|
|
vitals_dict["patient_gender"] = vitals_dict["gender"]
|
|
vitals_dict["dob"] = vitals.patient_dob or (patient.dob if patient else None)
|
|
vitals_dict["patient_dob"] = vitals_dict["dob"]
|
|
vitals_dict["bed_id"] = vitals.bed_id or (patient.bed_id if patient else None)
|
|
|
|
await ws_manager.broadcast_vitals(vitals_dict)
|
|
|
|
return {
|
|
"status": "ok",
|
|
"reading_id": reading.id,
|
|
"device_id": vitals.device_id,
|
|
"patient_id": vitals_dict["patient_id"]
|
|
}
|
|
except HTTPException:
|
|
raise
|
|
except Exception as e:
|
|
logger.error(f"Push-vitals error: {e}")
|
|
db.rollback()
|
|
raise HTTPException(status_code=500, detail=f"Failed to store vitals: {str(e)}")
|
|
|