import gradio as gr
import librosa
import numpy as np
import torch

from transformers import SpeechT5Processor, SpeechT5ForTextToSpeech, SpeechT5HifiGan

checkpoint = "mikhail-panzo/zlm-fil-ceb_b64_le5_s8000"
processor = SpeechT5Processor.from_pretrained(checkpoint)
model = SpeechT5ForTextToSpeech.from_pretrained(checkpoint)
vocoder = SpeechT5HifiGan.from_pretrained("microsoft/speecht5_hifigan")

spe = [-0.07156830281019211, -0.02638358250260353, 0.04677680879831314, 0.03367156162858009, -0.019285861402750015, -0.027602724730968475, -0.06917823851108551, -0.04798083007335663, 0.05392879247665405, 0.021232446655631065, -0.08971265703439713, -0.05227137356996536, 0.05129873752593994, 0.013318241573870182, 0.03634923696517944, 0.08183765411376953, -0.00023171716020442545, 0.02859080210328102, 0.013283342123031616, 0.008123684674501419, 0.043886449187994, 0.0027501601725816727, -0.017617085948586464, -0.05051666498184204, -0.045256875455379486, -0.008817761205136776, -0.060129791498184204, 0.03523271158337593, 0.06583297252655029, 0.030870387330651283, -0.002174368593841791, 0.0417785607278347, 0.02979600802063942, -0.026019243523478508, 0.01613667607307434, -0.08343936502933502, 0.028157565742731094, 0.05653348192572594, -0.04796013981103897, -0.06962310522794724, 0.009127648547291756, -0.047096963971853256, 0.01307157427072525, 0.04382061958312988, 0.017450829967856407, 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def predict(text, speaker):
    if len(text.strip()) == 0:
        return (16000, np.zeros(0).astype(np.int16))

    inputs = processor(text=text, return_tensors="pt")

    # limit input length
    input_ids = inputs["input_ids"]
    input_ids = input_ids[..., :model.config.max_text_positions]

    speaker_embedding = np.load(spe)

    speaker_embedding = torch.tensor(speaker_embedding).unsqueeze(0)

    speech = model.generate_speech(input_ids, speaker_embedding, vocoder=vocoder)

    speech = (speech.numpy() * 32767).astype(np.int16)
    return (16000, speech)


title = "CEB SEQ TTS"

description = """
This demo system is intended for survey purposes only.
"""

gr.Interface(
    fn=predict,
    inputs=[
        gr.Text(label="Input Text")
    ],
    outputs=[
        gr.Audio(label="Generated Speech", type="numpy"),
    ],
    title=title,
    description=description,
).launch()