# -*- 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
    :raises ImproperlyConfigured: if the environment setting is not defined
    :return: environment setting value
    :rtype: str
    """
    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
# ######### 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  # noqa
STATICFILES_DIRS = (
    normpath(join(SITE_ROOT, 'static')),
)

# See: https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/#staticfiles-finders  # noqa
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  # noqa
FIXTURE_DIRS = (
    normpath(join(SITE_ROOT, 'fixtures')),
)
# ######### END FIXTURE CONFIGURATION


# ######### TEMPLATE CONFIGURATION
# See: https://docs.djangoproject.com/en/1.9/ref/settings/#std:setting-TEMPLATES  # noqa
TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            normpath(join(SITE_ROOT, 'templates')),
        ],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.contrib.auth.context_processors.auth',
                'django.template.context_processors.debug',
                'django.template.context_processors.i18n',
                'django.template.context_processors.media',
                'django.template.context_processors.static',
                'django.template.context_processors.tz',
                'django.contrib.messages.context_processors.messages',
                'django.template.context_processors.request',
                # custom context processors
                'gnuviechadmin.context_processors.navigation',
                'gnuviechadmin.context_processors.version_info',
            ],
        },
    },
]
# ######### 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',

    # Flatpages for about page
    'django.contrib.flatpages',

    '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',
    'ldaptasks',
    'mysqltasks',
    'pgsqltasks',
    'fileservertasks',
    'webtasks',
    'domains',
    'osusers',
    'managemails',
    'userdbs',
    'hostingpackages',
    'websites',
    'contact_form',
)

# 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: 'alert-danger',
    messages.INFO: 'alert-info',
    messages.SUCCESS: 'alert-success',
    messages.WARNING: 'alert-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,
    'formatters': {
        'verbose': {
            'format': '%(levelname)s %(asctime)s %(name)s '
            '%(module)s:%(lineno)d %(process)d %(thread)d %(message)s',
        },
        'simple': {
            'format': '%(levelname)s %(name)s:%(lineno)d %(message)s',
        },
    },
    '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 = get_env_variable('GVA_RESULTS_REDIS_URL')
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')

GVA_LINK_WEBMAIL = get_env_variable('GVA_WEBMAIL_URL')
GVA_LINK_PHPMYADMIN = get_env_variable('GVA_PHPMYADMIN_URL')
GVA_LINK_PHPPGADMIN = get_env_variable('GVA_PHPPGADMIN_URL')
# ######### END CUSTOM APP CONFIGURATION