import streamlit as st
from youtube_transcript_api import YouTubeTranscriptApi

def Transcript(url):
    id = url.split('watch?v=')

    if len(id) < 2:
        st.error("Invalid URL format. Please provide a valid YouTube video URL.")
        return None

    video_id = id[1]
    try:
        srt = YouTubeTranscriptApi.get_transcript(video_id)
    except youtube_transcript_api._errors.TranscriptsDisabled:
        st.error("Transcripts are disabled for this video.")
        return None
    except youtube_transcript_api._errors.NoTranscriptAvailable:
        st.error("Transcript not available for the provided video.")
        return None
    except Exception as e:
        st.error(f"An error occurred: {e}")
        return None

    text_list = []
    for i in srt:
        text_list.append(i['text'])

    return ' '.join(text_list)

st.title('YouTube Video Transcript Extractor')

url = st.text_input("Enter YouTube URL:")

if st.button("Get Transcript"):
    if url:
        text = Transcript(url)
        if text is not None:
            st.success("Transcript successfully fetched!")
            st.text_area("Transcript", text, height=300)
    else:
        st.warning("Please enter a URL.")