#!/usr/bin/env python3
import os
import json
from flask import Flask, request, Response
import logging
import sys

# Configure basic logging to print to console
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s', stream=sys.stdout)

app = Flask(__name__)
listen_port = 1998 # The port specified

@app.route('/sms_receive_test', methods=['POST']) # Define the path Telnyx will call
def handle_incoming_sms():
    """Listens for and logs incoming webhook POST requests."""
    logging.info(f"Received request on /sms_receive_test from {request.remote_addr}")
    try:
        # Check if the content type is JSON, though Telnyx should always send JSON
        if request.is_json:
            payload = request.get_json()
            logging.info("Received JSON payload:")
            # Log the received payload nicely formatted
            logging.info(json.dumps(payload, indent=2))

            # --- TODO: Add logic here if needed (e.g., save to DB) ---
            # For now, just logging is sufficient proof of receipt.

            # Acknowledge receipt to Telnyx with 204 No Content
            return Response(status=204)
        else:
            # Log if unexpected content type is received
            logging.warning(f"Received non-JSON request. Content-Type: {request.content_type}")
            # Still acknowledge, but maybe log the raw data if needed
            # raw_data = request.get_data(as_text=True)
            # logging.info(f"Raw data: {raw_data}")
            return Response(status=204) # Acknowledge anyway

    except Exception as e:
        logging.exception("Error processing incoming webhook")
        # Return 500 Internal Server Error to Telnyx if processing fails
        # Telnyx *might* retry the webhook later in case of 5xx errors.
        return Response(status=500)

if __name__ == '__main__':
    logging.info(f"Starting simple webhook listener on port {listen_port}...")
    # Run on 0.0.0.0 to be accessible externally (within firewall limits)
    # DO NOT use debug=True in production environments
    app.run(host='0.0.0.0', port=listen_port, debug=False)