app.py

import gradio as gr
import subprocess

def run_ultrasinger(opt_i, youtube_link, opt_o, mode, whisper_model, language, crepe_model, extra, device):
    # Construct the command based on inputs
    cmd = ["python", "src/UltraSinger.py"]

    # Add input option
    if opt_i:
        cmd.extend(["-i", f'"{opt_i.name}"'])
    elif youtube_link:
        cmd.extend(["-i", f'"{youtube_link}"'])
    else:
        return "Error: No input file or YouTube link provided", ""

    # Add output folder option
    if opt_o:
        cmd.extend(["-o", f'"{opt_o}"'])

    # Add mode
    if mode != "default":
        mode_flags = {
            "Create Ultrastar txt file": "-u",
            "Create MIDI file": "-m",
            "Create sheet file": "-s"
        }
        cmd.append(mode_flags[mode])

    # Add transcription options
    if whisper_model:
        cmd.extend(["--whisper", whisper_model])
    if language:
        language_codes = {
            "English": "en", "French": "fr", "German": "de", "Spanish": "es",
            "Italian": "it", "Japanese": "ja", "Chinese": "zh", "Dutch": "nl",
            "Ukrainian": "uk", "Portuguese": "pt"
        }
        cmd.extend(["--language", language_codes[language]])

    # Add pitcher options
    cmd.extend(["--crepe", crepe_model])

    # Add extra options
    if extra:
        cmd.extend(extra.split())

    # Add device options
    if device:
        cmd.extend(device.split())

    # Debug: Print the command to check if it's constructed correctly
    print("Running command:", ' '.join(cmd))

    # Execute the command
    try:
        result = subprocess.run(cmd, capture_output=True, text=True)
        return result.stdout, result.stderr
    except Exception as e:
        return str(e), "Error occurred during execution"

def load_text_file(file_path):
    try:
        with open(file_path, 'r') as file:
            return file.read()
    except Exception as e:
        return str(e)

# Define Gradio inputs and outputs for UltraSinger
opt_i = gr.File(label="Ultrastar.txt or audio file (.mp3, .wav)")
youtube_link = gr.Textbox(label="YouTube Link", placeholder="Enter YouTube URL here")
opt_o = gr.Textbox(label="Output folder")
mode = gr.Radio(
    label="Mode options", 
    choices=[
        "default", "Create Ultrastar txt file", "Create MIDI file", 
        "Create sheet file"
    ], 
    value="default"
)
whisper_model = gr.Dropdown(
    label="Whisper Model", 
    choices=[
        "tiny", "base", "small", "medium", "large-v1", "large-v2", 
        "tiny.en", "base.en", "small.en", "medium.en"
    ], 
    value="large-v2"
)
language = gr.Dropdown(
    label="Language", 
    choices=[
        "English", "French", "German", "Spanish", "Italian", 
        "Japanese", "Chinese", "Dutch", "Ukrainian", "Portuguese"
    ], 
    value="English"
)
crepe_model = gr.Radio(
    label="Crepe Model", 
    choices=["full", "tiny"], 
    value="full"
)
extra = gr.Textbox(label="Extra options (e.g., --hyphenation True)")
device = gr.Dropdown(
    label="Device options",
    choices=[
        "", "--force_cpu True", "--force_cpu False", 
        "--force_whisper_cpu True", "--force_whisper_cpu False", 
        "--force_crepe_cpu True", "--force_crepe_cpu False"
    ],
    value=""
)

output_text = gr.Textbox(label="Standard Output")
error_text = gr.Textbox(label="Error Output")

# Define Gradio interface for UltraSinger
ultrasinger_tab = gr.Interface(
    fn=run_ultrasinger,
    inputs=[opt_i, youtube_link, opt_o, mode, whisper_model, language, crepe_model, extra, device],
    outputs=[output_text, error_text],
    title="UltraSinger UI",
    description="Upload an Ultrastar.txt or an audio file, set the options, and run UltraSinger."
)

# Load content for Tab 1 and Tab 2
tab1_content = load_text_file("info.txt")
tab2_content = load_text_file("usdb.txt")

# Create Gradio tabs
with gr.Blocks(theme="soft") as demo:
    with gr.Tabs():
        with gr.TabItem("UltraSinger"):
            ultrasinger_tab.render()
        with gr.TabItem("Info"):
            gr.Markdown(tab1_content)
        with gr.TabItem("FOR USDB USERS"):
            gr.Markdown(tab2_content)

# Launch the app
if __name__ == "__main__":
    demo.launch()