import os
import shutil

TEMP_DIR = "temp"

os.makedirs(TEMP_DIR, exist_ok=True)


def save_uploaded_file(file):
    if file is None:
        return None

    file_path = getattr(file, "name", file)
    if not os.path.exists(file_path):
        return None

    destination = os.path.join(
        TEMP_DIR,
        os.path.basename(file_path)
    )

    shutil.copy(file_path, destination)

    return destination


def cleanup_temp_files():
    """Removes temporary files from temp/ directory."""
    if os.path.exists(TEMP_DIR):
        for item in os.listdir(TEMP_DIR):
            if item != ".gitkeep":
                item_path = os.path.join(TEMP_DIR, item)
                try:
                    if os.path.isfile(item_path):
                        os.remove(item_path)
                    elif os.path.isdir(item_path):
                        shutil.rmtree(item_path)
                except Exception:
                    pass