app.py

import os
import openai
from flask import Flask, request, jsonify

app = Flask(__name__)

# ✅ Get the API key from environment variables
openai.api_key = os.getenv("OPENAI_API_KEY")

if not openai.api_key:
    raise ValueError("❌ OPENAI_API_KEY is not set. Go to Hugging Face > Settings > Variables and Secrets and add it there.")

@app.route("/chat", methods=["POST"])
def chat():
    try:
        data = request.json
        user_message = data.get("message", "")

        if not user_message:
            return jsonify({"error": "Message is required"}), 400

        # Example: call the ChatGPT model
        response = openai.ChatCompletion.create(
            model="gpt-3.5-turbo",  # or gpt-4 if available
            messages=[{"role": "user", "content": user_message}],
            temperature=0.7
        )

        reply = response.choices[0].message["content"]
        return jsonify({"reply": reply})

    except Exception as e:
        return jsonify({"error": str(e)}), 500

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=7860)