import os
from django.conf.urls import url, include

from .api import DjangoProjectHooksConfig


def get_installed_apps(file_path, installed_apps):
    settings_dir = os.path.dirname(os.path.abspath(file_path))
    config = DjangoProjectHooksConfig(settings_dir=settings_dir)
    app_list = installed_apps[:]
    for wanting_app in config:
        wanted_apps = config[wanting_app].get('INSTALLED_APPS', [])
        for wanted_app in wanted_apps:
            if wanted_app not in app_list:
                app_list.append(wanted_app)
    return app_list


def get_urlpatterns(file_path, urlpatterns):
    settings_dir = os.path.dirname(os.path.abspath(file_path))
    config = DjangoProjectHooksConfig(settings_dir=settings_dir)
    urls_list = urlpatterns[:]
    for app in config:
        if 'MOUNT' in config[app]:
            route, urlconf_module = config[app]['MOUNT']
            pattern = '^{}/'.format(route)
            if urlconf_module.startswith('.'):
                urlconf_module = '{}{}'.format(app, urlconf_module)
            url_obj = url(pattern, include(urlconf_module))
            urls_list.append(url_obj)
    return urls_list