# To parse video ids
import re

# Youtube Transcript stuff import
import youtube_transcript_api._errors
from youtube_transcript_api import YouTubeTranscriptApi
from youtube_transcript_api.formatters import TextFormatter

# OpenAI API stuff import
from openai import AssistantEventHandler
from openai import OpenAI
# For streaming
from typing_extensions import override

import threading

# Output buffer and thread lock
output_buffer = []
output_lock = threading.Lock()

# To get the env var
from dotenv import load_dotenv
import os

load_dotenv()

### OpenAI Config 

# Setting up OpenAI Client with API Key
api_key = os.getenv("OPENAI_API_KEY")
client = OpenAI(
  organization='org-7ANUFsqOVIXLLNju8Rvmxu3h',
  project="proj_NGz8Kux8CSka7DRJucAlDCz6",
  api_key=api_key
)

# screw bardo assistant that is configured to make notes and 5Q&A based on any given YouTube Transcript
asst_screw_bardo_id = "asst_JGFaX6uOIotqy5mIJnu3Yyp7"

# This is copy and pasted straight up from the quickstart guide, just appending to an output buffer instead of directly printing:
class EventHandler(AssistantEventHandler):    
  @override
  def on_text_created(self, text) -> None:
      with output_lock:
          output_buffer.append(f"\nassistant > {text}")
  
  @override
  def on_text_delta(self, delta, snapshot):
      with output_lock:
          output_buffer.append(delta.value)

  def on_tool_call_created(self, tool_call):
      with output_lock:
          output_buffer.append(f"\nassistant > {tool_call.type}\n")

def create_and_stream(transcript):
    with client.beta.threads.create_and_run_stream(
        assistant_id=asst_screw_bardo_id,
        thread={
            "messages": [{"role": "user", "content": transcript}]
        },
        event_handler=EventHandler()
    ) as stream:
        stream.until_done()
  
def get_video_id(url):
  youtu_be = r'(?<=youtu.be/)([A-Za-z0-9_-]{11})'
  youtube_com = r'(?<=youtube\.com\/watch\?v=)([A-Za-z0-9_-]{11})'
  
  id = re.search(youtu_be, url)
  if not id:
      id = re.search(youtube_com, url)
  
  if not id:
      print("Couldn't parse video ID from URL")
      return None
  
  return id.group(1)

# Takes the transcript and formats it in basic text before writing it to auto-transcript.txt
def get_auto_transcript(video_id):
  trans_api_errors = youtube_transcript_api._errors
  try:
    transcript = YouTubeTranscriptApi.get_transcript(video_id, languages=['en'], proxies=None, cookies=None, preserve_formatting=False)
  except trans_api_errors.TranscriptsDisabled:
    return None
    
  formatter = TextFormatter()  # Ensure that you create an instance of TextFormatter

  txt_transcript = formatter.format_transcript(transcript)
  return txt_transcript


# Stores the video id imputted by the user
"""
video_id = get_video_id()

transcript = get_auto_transcript(video_id)

create_and_stream(transcript)
"""