import gradio as gr
import torch
from pathlib import Path
from pytube import YouTube
from pydub import AudioSegment
from transformers import AutoProcessor, BarkModel
from TTS.api import TTS
import uuid
import os

test_audio="./shufflin.wav"

uid = uuid.uuid4()

device = "cuda" if torch.cuda.is_available() else "cpu"

processor = AutoProcessor.from_pretrained("suno/bark-small")
model = BarkModel.from_pretrained("suno/bark-small").to(device)
num_list = ["1","2","3","4","5","6","7","8","9","10"]
lang_list = ["en","de"]
#SAMPLE_RATE = 24_000
def run_bark(text, n='1', lang='en'):
    uid=uuid.uuid4()
    #history_prompt = []
    semantic_prompt=f"v2/{lang}_speaker_{int(n)-1}"

        #text=["Hello, my name is Suno. And, uh — and I like pizza. [laughs] But I also have other interests such as playing tic tac toe."],
    inputs = processor(text=text,
        voice_preset = semantic_prompt,
        return_tensors="pt",
    )
    print("generating")
    speech_values = model.generate(
        **inputs, coarse_temperature = 0.8, temperature = 0.5, do_sample=True
    )
    #speech_values = model.generate(**inputs, do_sample=True)
    sampling_rate = model.generation_config.sample_rate

    #sampling_rate = 24_000
    print("writing")
    scipy.io.wavfile.write(f"bark_out-{uid}.wav", rate=sampling_rate, data=speech_values.cpu().numpy().squeeze())
    return (f"bark_out-{uid}.wav")



def custom_bark(inp, tog, in_aud=None, trim_aud=None, in_aud_mic=None):
    if tog=="Custom":
        if in_aud_mic != None:
            speaker_wav=in_aud_mic
        if in_aud !=None and trim_aud==None:
            speaker_wav=in_aud
            #speaker_wav=Path(f"{uid}-tmp_aud.mp4")
        if trim_aud != None:
            speaker_wav=Path(f"{uid}-trim.wav")
        tts = TTS(model_name="tts_models/multilingual/multi-dataset/your_tts", progress_bar=False).to(device)
        tts.tts_to_file(inp, speaker_wav=speaker_wav, language="en", file_path=f"{uid}-output.wav")
        return (f"{uid}-output.wav")
    if tog=="Preset":
        return (run_bark(inp))
def load_video_yt(vid):
    yt = YouTube(vid)
    vid = yt.streams.filter(progressive=True, file_extension='mp4').order_by('resolution').desc().first().download(filename=f"{uid}-tmp.mp4")
    vid_aud = yt.streams.filter(only_audio=True)[0].download(filename=f"{uid}-tmp_aud.mp4")
    print (f'Video Length: {yt.length}')
    return vid, vid_aud, f"{uid}-tmp_aud.mp4"

def trim_clip(clip, start_t, end_t):
    clip = Path(f"{clip}")
    song = AudioSegment.from_file(f"{clip}", format="mp4")
    #song = AudioSegment.from_file(Path(f"{clip}"), format="mp4")
    start_min = int(start_t.split(":",1)[0])
    start_sec = int(start_t.split(":",1)[1])
    end_min = int(end_t.split(":",1)[0])
    end_sec = int(end_t.split(":",1)[1])
    start = ((start_min*60)+start_sec)*1000
    end = ((end_min*60)+end_sec)*1000
    song_clip = song[start: end]
    song_clip.export(f"{uid}-trim.wav", format="wav")
    print("New Audio file is created and saved")

    return f"{uid}-trim.wav"
def pre_aud(inp):
    print(inp)
    song = AudioSegment.from_file(Path(f'{inp}'), format="mp4")
    song.export(f"{uid}-tmp_aud.mp4", format="mp4")
    print(f'pre_aud:: {f"{uid}-tmp_aud.mp4"}')
    return inp
with gr.Blocks() as app:
    with gr.Group():
        with gr.Row():
            in_text = gr.Textbox(lines = 6, max_lines = 20)
            with gr.Column():
                alt_go_btn = gr.Button()
                out_audio = gr.Audio(interactive=False)
    with gr.Group():      
        with gr.Row():
            gr.Markdown('''<H1> Audio Source:''')
        with gr.Row():
            tog = gr.Radio(label="Input Type", choices=["Preset","Custom"], value="Preset")
        with gr.Row():
            with gr.Column():

                #in_aud_mic = gr.Audio(source='microphone')
                in_aud_file = gr.Audio(label = 'Audio Source', sources=['microphone','upload'], interactive = True,type='filepath', value=test_audio)
                aud_file = gr.File(interactive=False,visible=True)
                with gr.Row():
                    start_time = gr.Textbox(label = "Start", value = "0:00", placeholder = "0:23")
                    end_time = gr.Textbox(label = "End", value = "0:01", placeholder = "1:12")
                trim_clip_btn = gr.Button("Trim Clip")
                trim_aud = gr.Audio(label = 'Trimmed Audio Source', sources=['upload'], interactive = False)              
            with gr.Column():
                in_aud_yt = gr.Textbox(label="YouTube URL")
                load_yt_btn = gr.Button("Load URL")    
                yt_vid = gr.Video(interactive=False)
                


    #in_aud_file.change(pre_aud,in_aud_file,aud_file)
    load_yt_btn.click(load_video_yt, in_aud_yt, [yt_vid,in_aud_file,aud_file])
    trim_clip_btn.click(trim_clip,[in_aud_file, start_time, end_time],trim_aud)
    alt_go_btn.click(custom_bark, [in_text,tog,in_aud_file,trim_aud], out_audio)

app.launch()