from spaceapi_server import config, template


def template_function(fn):
    """
    Register the decorated function as a callable template function.
    :param fn: The function to register.
    """
    # Make sure the Jinja2 environment is initialized
    env = template._env_init()
    # Add the function to the environment's globals
    env.globals[fn.__name__] = fn
    return fn


def template_filter(fn):
    """
    Register the decorated function as a template filter.
    :param fn: The function to register.
    """
    # Make sure the Jinja2 environment is initialized
    env = template._env_init()
    # Add the function to the environment's filters
    env.filters[fn.__name__] = fn
    return fn


def get_plugin_config(name: str):
    """
    Return a plugin's configuration under .plugins[name]
    :param name: The plugin name.
    """
    return config.get().get('plugins', {}).get(name, {})