import os
import uuid
import ffmpeg

TEMP_DIR = "temp_files"
os.makedirs(TEMP_DIR, exist_ok=True)


def save_file(upload_file, suffix):
    file_id = str(uuid.uuid4())
    file_path = os.path.join(TEMP_DIR, f"{file_id}{suffix}")
    with open(file_path, "wb") as f:
        f.write(upload_file.read())
    return file_path, file_id


def process_video(video_path, overlay_path, output_path):
    (
        ffmpeg
        .input(video_path)
        .overlay(overlay_path)
        .output(output_path)
        .run(overwrite_output=True)
    )