app.py

import gradio as gr
import os
import asyncio
from conver import ConversationConfig, URLToAudioConverter
from dotenv import load_dotenv

load_dotenv()
def synthesize_sync(article_url):
    return asyncio.run(synthesize(article_url))

async def synthesize(article_url):
    if not article_url:
        return "Please provide a valid URL.", None

    try:
        config = ConversationConfig()
        converter = URLToAudioConverter(config, llm_api_key=os.environ.get("TOGETHER_API_KEY"))
        
        output_file, conversation = await converter.url_to_audio(
            article_url, 
            "en-US-AvaMultilingualNeural", 
            "en-US-AndrewMultilingualNeural"
        )
        
        return conversation, output_file
    except Exception as e:
        return f"Error: {str(e)}", None

with gr.Blocks(theme='soft') as demo:

    with gr.Group():
        text = gr.Textbox(label="Link: Article, Blog, News...", placeholder="Enter the article URL here...")
        btn = gr.Button("Podcastify", variant="primary")
        
    with gr.Row():
        conv_display = gr.Textbox(label="Conversation", interactive=False, lines=10)
        aud = gr.Audio(label="Generated Podcast", interactive=False)
    
    gr.Examples(
        examples=["https://huggingface.co/blog/openfree/cycle-navigator"],
        inputs=text,  
        fn=synthesize_sync,
        outputs=[conv_display, aud] 
    )
    
    btn.click(synthesize_sync, inputs=[text], outputs=[conv_display, aud])

demo.queue(api_open=True, default_concurrency_limit=15).launch(show_api=True)