from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from nlp_service import analyse_emergency

app = FastAPI()

class EmergencyRequest(BaseModel):
    patient_id: str
    message: str

class EmergencyResponse(BaseModel):
    patient_id: str
    urgency: str
    confidence: float
    action: str
    message: str

@app.post("/api/emergency/analyse", response_model=EmergencyResponse)
async def analyse(request: EmergencyRequest):
    if not request.message.strip():
        raise HTTPException(status_code=400, detail="Message cannot be empty")

    result = analyse_emergency(request.message)

    return EmergencyResponse(
        patient_id=request.patient_id,
        urgency=result["urgency"],
        confidence=result["confidence"],
        action=result["action"],
        message=result["message"]
    )

@app.get("/")
async def health_check():
    return {"status": "BUTH NLP Service is running"}