# -*- python -*-
# pymode:lint_ignore=E501
"""Common settings and globals."""


from os import environ
from os.path import abspath, basename, dirname, join, normpath
from sys import path

# Normally you should not import ANYTHING from Django directly
# into your settings, but ImproperlyConfigured is an exception.
from django.core.exceptions import ImproperlyConfigured
from django.contrib.messages import constants as messages


def get_env_variable(var_name):
    """
    Get a setting from an environment variable.

    :param str var_name: variable name

    """
    try:
        return environ[var_name]
    except KeyError:
        error_msg = "Set the %s environment variable" % var_name
        raise ImproperlyConfigured(error_msg)


########## PATH CONFIGURATION
# Absolute filesystem path to the Django project directory:
DJANGO_ROOT = dirname(dirname(abspath(__file__)))

# Absolute filesystem path to the top-level project folder:
SITE_ROOT = dirname(DJANGO_ROOT)

# Site name:
SITE_NAME = basename(DJANGO_ROOT)

# Add our project to our pythonpath, this way we don't need to type our project
# name in our dotted import paths:
path.append(DJANGO_ROOT)
########## END PATH CONFIGURATION


########## DEBUG CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#debug
DEBUG = False

# See: https://docs.djangoproject.com/en/dev/ref/settings/#template-debug
TEMPLATE_DEBUG = DEBUG
########## END DEBUG CONFIGURATION


########## MANAGER CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#admins
ADMINS = (
    (get_env_variable('GVA_ADMIN_NAME'), get_env_variable('GVA_ADMIN_EMAIL')),
)

# See: https://docs.djangoproject.com/en/dev/ref/settings/#managers
MANAGERS = ADMINS
########## END MANAGER CONFIGURATION


########## DATABASE CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#databases
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': get_env_variable('GVA_PGSQL_DATABASE'),
        'USER': get_env_variable('GVA_PGSQL_USER'),
        'PASSWORD': get_env_variable('GVA_PGSQL_PASSWORD'),
        'HOST': get_env_variable('GVA_PGSQL_HOSTNAME'),
        'PORT': get_env_variable('GVA_PGSQL_PORT'),
    }
}
########## END DATABASE CONFIGURATION


########## GENERAL CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#time-zone
TIME_ZONE = 'Europe/Berlin'

# See: https://docs.djangoproject.com/en/dev/ref/settings/#language-code
LANGUAGE_CODE = 'en-us'

# See: https://docs.djangoproject.com/en/dev/ref/settings/#site-id
SITE_ID = 1
SITES_DOMAIN_NAME = get_env_variable('GVA_DOMAIN_NAME')
SITES_SITE_NAME = get_env_variable('GVA_SITE_NAME')

# See: https://docs.djangoproject.com/en/dev/ref/settings/#use-i18n
USE_I18N = True

# See: https://docs.djangoproject.com/en/dev/ref/settings/#use-l10n
USE_L10N = True

# See: https://docs.djangoproject.com/en/dev/ref/settings/#use-tz
USE_TZ = True
########## END GENERAL CONFIGURATION


LOCALE_PATHS = (
    normpath(join(SITE_ROOT, 'locale')),
)


########## MEDIA CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#media-root
MEDIA_ROOT = normpath(join(SITE_ROOT, 'media'))

# See: https://docs.djangoproject.com/en/dev/ref/settings/#media-url
MEDIA_URL = '/media/'
########## END MEDIA CONFIGURATION


########## STATIC FILE CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#static-root
STATIC_ROOT = normpath(join(SITE_ROOT, 'assets'))

# See: https://docs.djangoproject.com/en/dev/ref/settings/#static-url
STATIC_URL = '/static/'

# See: https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/#std:setting-STATICFILES_DIRS
STATICFILES_DIRS = (
    normpath(join(SITE_ROOT, 'static')),
)

# See: https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/#staticfiles-finders
STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder',
    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
)
########## END STATIC FILE CONFIGURATION


########## SECRET CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#secret-key
# Note: This key should only be used for development and testing.
SECRET_KEY = get_env_variable('GVA_SITE_SECRET')
########## END SECRET CONFIGURATION


########## SITE CONFIGURATION
# Hosts/domain names that are valid for this site
# See https://docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
ALLOWED_HOSTS = []
########## END SITE CONFIGURATION


########## FIXTURE CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#std:setting-FIXTURE_DIRS
FIXTURE_DIRS = (
    normpath(join(SITE_ROOT, 'fixtures')),
)
########## END FIXTURE CONFIGURATION


########## TEMPLATE CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#template-context-processors
TEMPLATE_CONTEXT_PROCESSORS = (
    'django.contrib.auth.context_processors.auth',
    'django.core.context_processors.debug',
    'django.core.context_processors.i18n',
    'django.core.context_processors.media',
    'django.core.context_processors.static',
    'django.core.context_processors.tz',
    'django.contrib.messages.context_processors.messages',
    'django.core.context_processors.request',
    # allauth specific context processors
    'allauth.account.context_processors.account',
    'allauth.socialaccount.context_processors.socialaccount',
)

# See: https://docs.djangoproject.com/en/dev/ref/settings/#template-loaders
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
)

# See: https://docs.djangoproject.com/en/dev/ref/settings/#template-dirs
TEMPLATE_DIRS = (
    normpath(join(SITE_ROOT, 'templates')),
)
########## END TEMPLATE CONFIGURATION


########## MIDDLEWARE CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#middleware-classes
MIDDLEWARE_CLASSES = (
    # Default Django middleware.
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    # uncomment next line to enable translation to browser locale
    'django.middleware.locale.LocaleMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
########## END MIDDLEWARE CONFIGURATION


AUTHENTICATION_BACKENDS = (
    # Needed to login by username in Django admin, regardless of `allauth`
    "django.contrib.auth.backends.ModelBackend",

    # `allauth` specific authentication methods, such as login by e-mail
    "allauth.account.auth_backends.AuthenticationBackend",
)


########## URL CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#root-urlconf
ROOT_URLCONF = '%s.urls' % SITE_NAME
########## END URL CONFIGURATION


########## TEST RUNNER CONFIGURATION
TEST_RUNNER = 'django.test.runner.DiscoverRunner'
########## END TEST RUNNER CONFIGURATION


########## APP CONFIGURATION
DJANGO_APPS = (
    # Default Django apps:
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    # Useful template tags:
    'django.contrib.humanize',

    # Admin panel and documentation:
    'django.contrib.admin',
    # 'django.contrib.admindocs',

    'crispy_forms',
)

ALLAUTH_APPS = (
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
    'allauth.socialaccount.providers.linkedin_oauth2',
    'allauth.socialaccount.providers.twitter',
    'allauth.socialaccount.providers.xing',
)

# Apps specific for this project go here.
LOCAL_APPS = (
    'dashboard',
    'taskresults',
    'mysqltasks',
    'pgsqltasks',
    'domains',
    'osusers',
    'managemails',
    'userdbs',
    'hostingpackages',
)

# See: https://docs.djangoproject.com/en/dev/ref/settings/#installed-apps
INSTALLED_APPS = DJANGO_APPS + ALLAUTH_APPS + LOCAL_APPS

MESSAGE_TAGS = {
    messages.DEBUG: '',
    messages.ERROR: 'text-danger',
    messages.INFO: 'text-info',
    messages.SUCCESS: 'text-success',
    messages.WARNING: 'text-warning',
}
########## END APP CONFIGURATION


########## ALLAUTH CONFIGURATION
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_EMAIL_VERIFICATION = 'mandatory'
LOGIN_REDIRECT_URL = '/'
SOCIALACCOUNT_QUERY_EMAIL = True
########## END ALLAUTH CONFIGURATION


########## CRISPY FORMS CONFIGURATION
CRISPY_TEMPLATE_PACK = 'bootstrap3'
########## END CRISPY_FORMS CONFIGURATION


########## LOGGING CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#logging
# A sample logging configuration. The only tangible logging
# performed by this configuration is to send an email to
# the site admins on every HTTP 500 error when DEBUG=False.
# See http://docs.djangoproject.com/en/dev/topics/logging for
# more details on how to customize your logging configuration.
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'filters': {
        'require_debug_false': {
            '()': 'django.utils.log.RequireDebugFalse'
        }
    },
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'filters': ['require_debug_false'],
            'class': 'django.utils.log.AdminEmailHandler'
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
    }
}
########## END LOGGING CONFIGURATION


########## WSGI CONFIGURATION
# See: https://docs.djangoproject.com/en/dev/ref/settings/#wsgi-application
WSGI_APPLICATION = '%s.wsgi.application' % SITE_NAME
########## END WSGI CONFIGURATION


########## CELERY CONFIGURATION
BROKER_URL = get_env_variable('GVA_BROKER_URL')
CELERY_RESULT_BACKEND = 'amqp'
CELERY_RESULT_PERSISTENT = True
CELERY_TASK_RESULT_EXPIRES = None
CELERY_ROUTES = (
    'gvacommon.celeryrouters.GvaRouter',
)
CELERY_TIMEZONE = 'Europe/Berlin'
CELERY_ENABLE_UTC = True
CELERY_ACCEPT_CONTENT = ['json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
########## END CELERY CONFIGURATION


########## CUSTOM APP CONFIGURATION
OSUSER_MINUID = int(get_env_variable('GVA_MIN_OS_UID'))
OSUSER_MINGID = int(get_env_variable('GVA_MIN_OS_GID'))
OSUSER_USERNAME_PREFIX = get_env_variable('GVA_OSUSER_PREFIX')
OSUSER_HOME_BASEPATH = get_env_variable('GVA_OSUSER_HOME_BASEPATH')
OSUSER_DEFAULT_SHELL = get_env_variable('GVA_OSUSER_DEFAULT_SHELL')
OSUSER_SFTP_GROUP = 'sftponly'
OSUSER_SSH_GROUP = 'sshusers'
OSUSER_DEFAULT_GROUPS = [OSUSER_SFTP_GROUP]
OSUSER_UPLOAD_SERVER = get_env_variable('GVA_OSUSER_UPLOADSERVER')
########## END CUSTOM APP CONFIGURATION