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import gradio as gr
import edge_tts
import asyncio
import librosa
import soundfile
import io
import argparse
from inference.infer_tool import Svc

def get_or_create_eventloop():
    try:
        return asyncio.get_event_loop()
    except RuntimeError as ex:
        if "There is no current event loop in thread" in str(ex):
            loop = asyncio.new_event_loop()
            asyncio.set_event_loop(loop)
            return asyncio.get_event_loop()

def tts_get_voices_list():
    voices = []
    tts_voice_list = asyncio.get_event_loop().run_until_complete(edge_tts.list_voices())
    for item in tts_voice_list:
        voices.append(item['ShortName'])
    
    return voices

def tts_mode(txt, voice):
    tts = asyncio.run(edge_tts.Communicate(txt, voice).save('temp\\test.mp3'))
    audio, sr = librosa.load('temp\\test.mp3', sr=16000, mono=True)
    raw_path = io.BytesIO()
    soundfile.write(raw_path, audio, 16000, format="wav")
    raw_path.seek(0)
    model = Svc(fr"Herta-Svc/G_10000.pth", f"Herta-Svc/config.json", device = 'cpu')
    out_audio, out_sr = model.infer('speaker0', 0, raw_path, auto_predict_f0 = True,)
    soundfile.write('temp\\xxx.wav', out_audio.cpu().numpy(), 44100)
    audio_file = open('temp\\xxx.wav', 'rb')
    audio_bytes = audio_file.read()

    return audio_bytes

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--device', type=str, default='cpu')
    parser.add_argument('--api', action="store_true", default=False)
    parser.add_argument("--share", action="store_true", default=False, help="share gradio app")
    args = parser.parse_args()
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)
    with gr.Blocks() as app:
        with gr.Tabs():
            with gr.TabItem('Herta'):
                tts_text = gr.Textbox(label="TTS text (100 words limitation)", visible = True)
                tts_voice = gr.Dropdown(choices= tts_get_voices_list(), visible = True)
                audio_output = gr.Audio(label="Output Audio")
                btn_submit = gr.Button("Generate")
    
        btn_submit.click(tts_mode, [tts_text, tts_voice], [audio_output])

    app.queue(concurrency_count=1, api_open=args.api).launch(share=args.share)