import gradio as gr
import yt_dlp
import os
os.system('yt-dlp -U')




def download_media(url, output_format):
    ydl_opts = {}

    if output_format == "Audio":
        ydl_opts = {
            'format': 'bestaudio/best',
            'outtmpl': 'downloads/%(title)s.%(ext)s',
            'postprocessors': [{
                'key': 'FFmpegExtractAudio',
                'preferredcodec': 'mp3',
                'preferredquality': '192',
            }],
        }
    elif output_format == "Video":
        ydl_opts = {
            'format': 'bestvideo+bestaudio/best',
            'outtmpl': 'downloads/%(title)s.%(ext)s',
        }
    
    try:
        with yt_dlp.YoutubeDL(ydl_opts) as ydl:
            info_dict = ydl.extract_info(url, download=True)
            title = info_dict.get('title', 'Unknown')
            ext = info_dict.get('ext', 'mp4' if output_format == "Video" else 'mp3')
            file_path = f'downloads/{title}.{ext}'
            return file_path, f"Download successful: {title}.{ext}"
    except Exception as e:
        return None, f"Error: {str(e)}"

# Gradio Blocks UI
with gr.Blocks() as demo:
    gr.Markdown("# Video and Audio Downloader using yt-dlp")
    
    with gr.Row():
        url_input = gr.Textbox(label="Video/Audio URL")
        format_dropdown = gr.Dropdown(choices=["Audio", "Video"], label="Output Format")
        
    download_button = gr.Button("Download")
    output_text = gr.Textbox(label="Output Message")
    
    # Placeholder for media output
    audio_output = gr.Audio(label="Audio Output", visible=False)
    video_output = gr.Video(label="Video Output", visible=False)
    
    def handle_download(url, output_format):
        file_path, message = download_media(url, output_format)
        if file_path and output_format == "Audio":
            return file_path, None, audio_output.update(visible=True), video_output.update(visible=False), message
        elif file_path and output_format == "Video":
            return None, file_path, audio_output.update(visible=False), video_output.update(visible=True), message
        else:
            return None, None, audio_output.update(visible=False), video_output.update(visible=False), message

    download_button.click(handle_download, 
                          inputs=[url_input, format_dropdown], 
                          outputs=[audio_output, video_output, audio_output, video_output, output_text])

demo.launch()