#!/usr/bin/python3

#
# Copyright (C) 2020-2025 Soleta Networks <info@soleta.eu>
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the
# Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

import os
import sys
import json
import time
import socket
import select
import logging
from src.kiosk.kiosk import launch_kiosk


logging.basicConfig(
    level=logging.INFO,
    format='(%(asctime)s): [%(levelname)s] - %(message)s',  # Optional log format
    stream=sys.stdout  # Direct the output to stdout
)


def send_event(socket, data):
    try:
        json_data = json.dumps(data)
        logging.info(f'sending to kiosk: {json_data}')
        socket.send(json_data.encode('utf-8'))
    except TypeError as e:
        logging.error(f'Failed to encode data to JSON: {e}')
    except Exception as e:
        logging.error(f'Unexpected error in send_kiosk_event: {e}')

def test_requests_on_interrupt():
    pass

if __name__ == '__main__':
    kiosk_sock_pair = socket.socketpair(socket.AF_UNIX, socket.SOCK_DGRAM)
    client_socket = kiosk_sock_pair[0]
    kiosk_socket = kiosk_sock_pair[1]
    try:
        kiosk_pid = os.fork()
        if kiosk_pid == 0:
            logging.info('Launching Kiosk...')
            try:
                ret = launch_kiosk(socket=kiosk_socket, debug_mode=True)
                sys.exit(ret)
            except Exception as e:
                logging.exception(f"Error during Kiosk execution: {e}")
                sys.exit(1)
    except Exception as e:
        logging.error(f'Could not launch Kiosk: {e}')
        raise

    try:
        logging.info('Parent process: Monitoring Kiosk communication...')
        while True:
            readable, _, _ = select.select([client_socket], [], [])
            if client_socket in readable:
                data = client_socket.recv(4096)
                if data:
                    print(f'Received from Kiosk: {data.decode('utf-8')}')
                else:
                    print('Kiosk disconnected')
                    break
    except KeyboardInterrupt:
        logging.info('Interrupted by user. Executing test requests')
        test_requests_on_interrupt()
    except Exception as e:
        logging.error(f'Error during communication: {e}')
    finally:
        send_event(client_socket, {'command': 'close'})
        client_socket.close()