import shutil
import argparse
from pathlib import Path
from importlib import resources


def copy_health_app_template(target_dir: Path) -> None:
    """
    Copy the bundled health app template into a target directory.
    """
    target_dir = target_dir.resolve()
    target_dir.mkdir(parents=True, exist_ok=True)

    with resources.files("fastapi_openapi_first.templates").joinpath("health_app") as src:
        shutil.copytree(src, target_dir, dirs_exist_ok=True)


def main():
    parser = argparse.ArgumentParser(
        description="FastAPI OpenAPI-first scaffolding tools"
    )
    parser.add_argument(
        "path",
        nargs="?",
        default="health-app",
        help="Target directory for the health app",
    )

    args = parser.parse_args()
    copy_health_app_template(Path(args.path))
    print(f"Health app created at {args.path}")