# Common settings inherited by production, development, local, etc.

import os.path
from os.path import dirname
from os import environ
from django.core.exceptions import ImproperlyConfigured

# Function to get environment variables from os environment
def get_env_variable(var_name):
    try:
        return os.environ[var_name]
    except KeyError:
        error_msg = "Set the %s environment variable" % var_name
        raise ImproperlyConfigured(error_msg)

# Root project dir (the one containing manage.py)
BASE_DIR = dirname(dirname(dirname(os.path.abspath(__file__))))

# Local time zone for this installation. Choices can be found here:
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# On Unix systems, a value of None will cause Django to use the same
# timezone as the operating system.
# If running in a Windows environment this must be set to the same as your
# system time zone.
TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# If you set this to False, Django will not format dates, numbers and
# calendars according to the current locale
USE_L10N = True

# Absolute filesystem path to the directory that will hold user-uploaded files.
# Example: "/home/media/media.lawrence.com/media/"
MEDIA_ROOT = ''

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash.
# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
MEDIA_URL = ''

# URL prefix for static files.
# Example: "http://media.lawrence.com/static/"
STATIC_URL = '/static/'

# URL prefix for admin static files -- CSS, JavaScript and images.
# Make sure to use a trailing slash.
# Examples: "http://foo.com/static/admin/", "/static/admin/".
ADMIN_MEDIA_PREFIX = '/static/admin/'

# Additional locations of static files
STATICFILES_DIRS = (
    os.path.join(BASE_DIR, 'staticfiles'),
)

# List of finder classes that know how to find static files in
# various locations.
STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder',
    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
    # 'django.contrib.staticfiles.finders.DefaultStorageFinder',
)

# Make this unique, and don't share it with anybody.
SECRET_KEY = get_env_variable('SECRET_KEY')

# Show the debug_toolbar to the following IPs
INTERNAL_IPS = ['127.0.0.1']

# Setup Google Analytics
GOOGLE_ANALYTICS_KEY = get_env_variable('GOOGLE_ANALYTICS_KEY')

MIDDLEWARE = (
    'debug_toolbar.middleware.DebugToolbarMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    #'django.middleware.transaction.TransactionMiddleware',
)

ROOT_URLCONF = 'cjp.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                'cjp.context_processors.google_analytics',
            ],
        },
    }

]

INSTALLED_APPS = (
    'newsarticles',
    'crimedata',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    # 'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.admin',
    'debug_toolbar',
    'rest_framework',
    'rest_framework.authtoken',
)

REST_FRAMEWORK = {
    # Use Django's standard `django.contrib.auth` permissions,
    # or allow read-only access for unauthenticated users.
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAdminUser',
    ],
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.TokenAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    ],
    'PAGE_SIZE': 20,
}

SESSION_EXPIRE_AT_BROWSER_CLOSE = True

SESSION_COOKIE_AGE = 60 * 60 * 24
SESSION_SERIALIZER = 'django.contrib.sessions.serializers.PickleSerializer'

# 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.
# 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'
        }
    },
    'root': {
        'handlers': ['console']
    },
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'filters': ['require_debug_false'],
            'class': 'django.utils.log.AdminEmailHandler'
        },
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
            'formatter': 'verbose',
        },
    },
    'formatters': {
        'verbose': {
            'format': '%(levelname)s|%(asctime)s|%(module)s|%(process)d|%(message)s',
            'datefmt' : "%Y-%m-%dT%H:%M:%S"
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
        'newsarticles': {
            'level': 'DEBUG',
            'propagate': True,
        }
    }
}

# Default redirect path after login/logout
# TODO: move to 'next' param in HTTP request
CJP_ROOT = '/'
LOGIN_REDIRECT_URL = '/articles/coderandom/'
LOGIN_URL = '/user/login/'
