import gradio as gr
import subprocess
import uuid
import os

OUTPUT_DIR = "outputs"
os.makedirs(OUTPUT_DIR, exist_ok=True)

def webm_to_mp4(video):
    input_path = video
    output_name = f"{uuid.uuid4()}.mp4"
    output_path = os.path.join(OUTPUT_DIR, output_name)

    command = [
        "ffmpeg",
        "-y",
        "-i", input_path,
        "-movflags", "faststart",
        "-pix_fmt", "yuv420p",
        output_path
    ]

    subprocess.run(command, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)

    return output_path

iface = gr.Interface(
    fn=webm_to_mp4,
    inputs=gr.Video(format="webm"),
    outputs=gr.File(label="Download MP4"),
    title="WebM → MP4 Converter",
    description="Envie um vídeo WebM e receba um MP4 pronto para download."
)

iface.launch()