import inspect
import os
import pkgutil
from typing import List, Type

from bauh import ROOT_DIR
from bauh.api.abstract.controller import SoftwareManager, ApplicationContext
from bauh.util import util


def find_manager(member):
    if not isinstance(member, str):
        if inspect.isclass(member) and inspect.getmro(member)[1].__name__ == 'SoftwareManager':
            return member
        elif inspect.ismodule(member):
            for name, mod in inspect.getmembers(member):
                manager_found = find_manager(mod)
                if manager_found:
                    return manager_found


def load_managers(locale: str, context: ApplicationContext, enabled_gems: List[str] = None) -> List[SoftwareManager]:
    managers = []

    for f in os.scandir(ROOT_DIR + '/gems'):
        if f.is_dir() and f.name != '__pycache__':
            module = pkgutil.find_loader('bauh.gems.{}.controller'.format(f.name)).load_module()

            manager_class = find_manager(module)

            if manager_class:
                if locale:
                    locale_path = '{}/resources/locale'.format(f.path)

                    if os.path.exists(locale_path):
                        context.i18n.update(util.get_locale_keys(locale, locale_path))

                man = manager_class(context=context)

                if enabled_gems is not None and  f.name not in enabled_gems:
                    man.set_enabled(False)

                managers.append(man)

    return managers