gradio_app.py

import gradio as gr
from src.translate_any_doc import translate_document
from src.salamandraTA7b_translator import SalamandraTA7bTranslator
from src.aligner import Aligner
import os

config_folder = 'fast_align_config'
temp_folder = 'tmp'
hf_token = os.getenv('HF_TOKEN')

translator = SalamandraTA7bTranslator(hf_token)


def upload_file(filepath, source_lang, target_lang):
    aligner = Aligner(config_folder, source_lang, target_lang, temp_folder)
    translated_file_name = translate_document(filepath, source_lang, target_lang, translator, aligner)
    return [gr.UploadButton(visible=False),
            gr.DownloadButton(label=f"Download {translated_file_name}", value=translated_file_name, visible=True)]


def before_processing():
    return [
        gr.UploadButton("Processing...", interactive=False),
        gr.DownloadButton(visible=False)  # Keep download hidden until processing finishes
    ]


def download_file():
    return [gr.UploadButton(visible=True), gr.DownloadButton(visible=False)]


with gr.Blocks() as demo:
    with gr.Tab("Text"):
        gr.Interface(fn=translator.translate, inputs=["text", "text", "text"], outputs="text")
    with gr.Tab("Documents"):
        with gr.Row():
            dropdown1 = gr.Dropdown(label="Source language", choices=["en", "ca"], value=None, interactive=True)
            dropdown2 = gr.Dropdown(label="Target language", choices=["en", "ca"], value=None, interactive=True)
        gr.Markdown("First upload a file and and then you'll be able download it (but only once!)")
        with gr.Row():
            u = gr.UploadButton("Upload a file", file_count="single")
            d = gr.DownloadButton("Download the file", visible=False)

        u.upload(fn=before_processing, inputs=None, outputs=[u, d]).then(upload_file, [u, dropdown1, dropdown2], [u, d])
        d.click(download_file, None, [u, d])
if __name__ == "__main__":
    demo.launch(server_name="0.0.0.0", server_port=7860)