from curl_cffi  import requests
from json       import loads
from re         import findall
from threading  import Thread
from queue      import Queue, Empty

class Completion:
    # experimental
    part1 = '{"role":"assistant","id":"chatcmpl'
    part2 = '"},"index":0,"finish_reason":null}]}}'
    regex = rf'{part1}(.*){part2}'
    
    timer            = None
    message_queue    = Queue()
    stream_completed = False
    
    def request():
        headers = {
            'authority'   : 'chatbot.theb.ai',
            'content-type': 'application/json',
            'origin'      : 'https://chatbot.theb.ai',
            'user-agent'  : 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36',
        }

        requests.post('https://chatbot.theb.ai/api/chat-process', headers=headers, content_callback=Completion.handle_stream_response, 
            json = {
                'prompt' : 'hello world',
                'options': {}
            }
        )

        Completion.stream_completed = True

    @staticmethod
    def create():
        Thread(target=Completion.request).start()
        
        while Completion.stream_completed != True or not Completion.message_queue.empty():
            try:
                message = Completion.message_queue.get(timeout=0.01)
                for message in findall(Completion.regex, message):
                    yield loads(Completion.part1 + message + Completion.part2)
                    
            except Empty:
                pass

    @staticmethod
    def handle_stream_response(response):
        Completion.message_queue.put(response.decode())

def start():
    for message in Completion.create():
        yield message['delta']

if __name__ == '__main__':
    for message in start():
        print(message)