Below is an updated version of the code that should work with openai>=1.0.0. Make sure you have the correct versions installed by running pip install --upgrade openai. Also, verify your API keys, tokens, and ensure that your billing/quota on OpenAI is not exceeded.

Key Changes:
	•	Ensure you are using openai.ChatCompletion.create and the messages parameter as shown.
	•	Confirm that the decorators are correctly prefixed with @app.route.
	•	Remove any outdated references to older OpenAI API versions.
	•	Check your .env and environment variables for correctness.

import os
from flask import Flask, request
from dotenv import load_dotenv
import openai
from heyoo import WhatsApp
import json

# Load environment variables
load_dotenv()

# Initialize OpenAI
openai.api_key = os.getenv('OPENAI_API_KEY')

# Initialize Flask and WhatsApp
app = Flask(__name__)
messenger = WhatsApp(
    os.getenv('WHATSAPP_API_KEY'),
    phone_number_id=os.getenv('WHATSAPP_PHONE_NUMBER_ID')
)

chat_history = {}

# Define the assistant role
ASSISTANT_ROLE = """You are a professional real estate agent representative for 'Real Estate Agency'.
You should:
1. Provide brief and professional responses
2. Focus on information about properties in the Haifa area
3. Ask relevant questions to understand client needs, such as:
   - Number of rooms needed
   - Price range
   - Preferred neighborhood
   - Special requirements (parking, balcony, etc.)
   - Desired move-in date
4. Offer to schedule meetings when appropriate
5. Avoid prohibited topics such as religion, politics, or economic forecasts
"""

def get_ai_response(message, phone_number):
    try:
        if phone_number not in chat_history:
            chat_history[phone_number] = []

        chat_history[phone_number].append({"role": "user", "content": message})
        # Keep only the last 5 messages to manage token count
        chat_history[phone_number] = chat_history[phone_number][-5:]

        messages = [{"role": "system", "content": ASSISTANT_ROLE}] + chat_history[phone_number]

        response = openai.ChatCompletion.create(
            model="gpt-3.5-turbo",
            messages=messages,
            max_tokens=int(os.getenv('MAX_TOKENS', 150)),
            temperature=float(os.getenv('TEMPERATURE', 0.7))
        )

        ai_response = response.choices[0].message.content
        chat_history[phone_number].append({"role": "assistant", "content": ai_response})
        return ai_response
    except Exception as e:
        with open('/var/log/chatbot_debug.log', 'a') as f:
            f.write(f"AI Response Error: {str(e)}\n")
        return "Sorry, we're experiencing technical difficulties. Please try again or contact a representative."

@app.route('/webhook', methods=['GET'])
def verify():
    mode = request.args.get("hub.mode")
    token = request.args.get("hub.verify_token")
    challenge = request.args.get("hub.challenge")

    if mode == "subscribe" and token == os.getenv("WEBHOOK_VERIFY_TOKEN"):
        return str(challenge), 200
    return "Invalid verification", 403

@app.route('/webhook', methods=['POST'])
def webhook():
    try:
        with open('/var/log/chatbot_debug.log', 'a') as f:
            f.write("\n=== New Webhook Request ===\n")

        data = json.loads(request.data.decode("utf-8"))
        with open('/var/log/chatbot_debug.log', 'a') as f:
            f.write(f"Received data: {data}\n")

        if 'entry' in data and data['entry']:
            if 'changes' in data['entry'][0]:
                with open('/var/log/chatbot_debug.log', 'a') as f:
                    f.write("Found changes in entry\n")

                if 'value' in data['entry'][0]['changes'][0]:
                    value = data['entry'][0]['changes'][0]['value']
                    if 'messages' in value and value['messages']:
                        message = value['messages'][0]
                        if 'from' in message and 'text' in message and 'body' in message['text']:
                            phone_number = message['from']
                            message_text = message['text']['body']
                            response_text = get_ai_response(message_text, phone_number)
                            messenger.send_message(response_text, phone_number)

        return "OK", 200

    except Exception as e:
        with open('/var/log/chatbot_debug.log', 'a') as f:
            f.write(f"Webhook Error: {str(e)}\n")
        return "Error", 500

if __name__ == "__main__":
    app.run(host='0.0.0.0', port=8000)

Additional Tips:
	•	Ensure you have the latest openai package: pip install --upgrade openai.
	•	Double-check your OpenAI account usage and billing to ensure you haven’t exceeded your quota.
	•	Verify that your .env file contains the correct OPENAI_API_KEY, WHATSAPP_API_KEY, WHATSAPP_PHONE_NUMBER_ID, WEBHOOK_VERIFY_TOKEN, and any other required environment variables.