import os
import gradio as gr
import yt_dlp
from pydub import AudioSegment
import re
import subprocess


if not os.path.exists("downloads"):
    os.makedirs("downloads")

def sanitize_filename(filename):
    """Sanitize filenames to avoid special characters."""
    return re.sub(r'[^a-zA-Z0-9_-]', '_', filename)

def process_youtube_or_audio(url, recorded_audio):
    try:
        filename = None
        song_name = None

      
        if url:
            ydl_opts = {
                'format': 'bestaudio/best',
                'outtmpl': 'downloads/%(id)s.%(ext)s',
                'cookiefile': 'cookies.txt'
            }
            with yt_dlp.YoutubeDL(ydl_opts) as ydl:
                info = ydl.extract_info(url, download=True)
                filename = os.path.join('downloads', f"{info['id']}.webm")
                song_name = sanitize_filename(info['title'])

        # Handle recorded audio
        elif recorded_audio:
            filename = recorded_audio
            song_name = "recorded_audio"
        
        if not filename or not os.path.exists(filename):
            return None, None

     
        audio = AudioSegment.from_file(filename)

      
        if len(audio) > 20000:
            audio = audio[:20000]

    
        mp3_filename = f"downloads/{song_name}.mp3"
        audio.export(mp3_filename, format="mp3")

       
        m4a_filename = f"downloads/{song_name}.m4a"
        subprocess.run([
            'ffmpeg', '-i', mp3_filename, '-vn', '-acodec', 'aac', '-b:a', '192k', m4a_filename
        ], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    
        m4r_filename = f"downloads/{song_name}.m4r"
        os.rename(m4a_filename, m4r_filename)

        return os.path.abspath(mp3_filename), os.path.abspath(m4r_filename)

    except Exception as e:
        print(f"Error: {e}")
        return None, None

# Gradio UI
with gr.Blocks(css="""
    body { font-family: Arial, sans-serif; text-align: center; }
    .light-btn { 
        background-color: #ADD8E6; 
        color: #333; 
        border: 2px solid #ccc; 
        padding: 10px 20px; 
        font-size: 16px; 
        cursor: pointer; 
    }
    .light-btn:hover { background-color: #87CEFA; }
""") as interface:

    gr.HTML("""
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
        <h1><i class="fas fa-music"></i>&nbsp;PYTR</h1>
        <p>Python YouTube Ringtones. Enter a YouTube URL or record audio to create ringtones.</p>
        <p>
            <a href="https://ringtone.JesseJesse.xyz" target="_blank">Ringtones</a>&nbsp;&nbsp;
            <a href="https://sudo-self.github.io/pytr/" target="_blank">GitHub</a>&nbsp;&nbsp;
            <a href="https://youtube.com" target="_blank">YouTube</a>
            <a href="https://www.imazing.com" target="_blank">imazing</a>
        </p>
    """)

    with gr.Row():
        with gr.Column(scale=1, min_width=250):
            gr.HTML('<label><i class="fas fa-link"></i>&nbsp;YouTube URL</label>')
            youtube_url = gr.Textbox(placeholder="Enter the URL here...", show_label=False)

        with gr.Column(scale=1, min_width=250):
            gr.HTML('<label><i class="fas fa-microphone"></i>&nbsp;Record Audio</label>')
            audio_record = gr.Audio(sources=["microphone"], type="filepath", show_label=False)

    with gr.Row():
        process_button = gr.Button("Create Ringtones", elem_classes="light-btn")

    with gr.Row():
        with gr.Column(scale=1, min_width=250):
            gr.HTML('<label>&nbsp;Android Ringtone</label>')
            mp3_download = gr.File(label="Android")
            android_instructions = gr.Textbox(label="Install", placeholder="Move the .mp3 file to the ringtones folder", lines=2)

        with gr.Column(scale=1, min_width=250):
            gr.HTML('<label>&nbsp;iPhone Ringtone</label>')
            iphone_ringtone = gr.File(label="Apple")
            iphone_instructions = gr.Textbox(label="Install", placeholder="Swipe left and open GarageBand. Long-press the ringtone file, select share, then choose 'Ringtone' to export.", lines=2)

    process_button.click(process_youtube_or_audio, inputs=[youtube_url, audio_record], outputs=[mp3_download, iphone_ringtone])

interface.launch(share=True)