import os
import importlib
import warnings

from flask import current_app


def get_app_directories() -> list:
    directories = []
    src_dir = current_app.config['SRC_DIR']
    excluded_dirs = current_app.config['EXCLUDED_DIRS']

    for dirname in os.listdir(src_dir):
        path = src_dir / dirname
        if os.path.isdir(path) and dirname not in excluded_dirs:
            directories.append(dirname)
    return directories


def import_models() -> None:
    directories = get_app_directories()

    models_module = "models"
    for dirname in directories:
        try:
            importlib.import_module(f"backend.app.{dirname}.{models_module}")
        except ModuleNotFoundError:
            print(models_module, dirname)
            warnings.warn(f"Not found module {models_module}.py in package {dirname}")