engine.py

from openai import OpenAI
import os
from dotenv import load_dotenv

load_dotenv() # Loads the API key from a .env file

# Add your key here or in a .env file
client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))

def get_diagnosis(clean_symptoms, clean_history):
    system_prompt = (
        "You are a Clinical Decision Support AI. "
        "The following data has been de-identified for privacy. "
        "Analyze the case and provide: "
        "1. Differential Diagnosis (ranked by likelihood). "
        "2. Clinical 'Red Flags' to watch for. "
        "3. Recommended diagnostic tests (e.g., CBC, MRI). "
        "Keep the tone professional and clinical."
    )

    try:
        response = client.chat.completions.create(
            model="gpt-4o", # Use GPT-4o for medical reasoning
            messages=[
                {"role": "system", "content": system_prompt},
                {"role": "user", "content": f"Symptoms: {clean_symptoms}\nHistory: {clean_history}"}
            ],
            temperature=0.1
        )
        return response.choices[0].message.content
    except Exception as e:
        return f"Error connecting to AI: {str(e)}"