# -*- coding: utf-8 -*-
from django.conf import settings as django_settings
from django.core.urlresolvers import reverse_lazy
from django.utils.translation import ugettext_lazy as _

# Should urls be case sensitive?
URL_CASE_SENSITIVE = getattr( django_settings, 'WIKI_URL_CASE_SENSITIVE', False )

# Non-configurable (at the moment)
APP_LABEL = 'wiki'
WIKI_LANGUAGE = 'markdown'

# The editor class to use -- maybe a 3rd party or your own...? You can always
# extend the built-in editor and customize it....
EDITOR = getattr( django_settings, 'WIKI_EDITOR', 'wiki.editors.markitup.MarkItUp' )

MARKDOWN_KWARGS = {
    'extensions': ['footnotes', 'attr_list', 'headerid', 'extra', 'codehilite',],
    'safe_mode': 'replace',
    'extension_configs': {'toc': {'title': _('Table of Contents')}},
}
MARKDOWN_KWARGS.update(getattr( django_settings, 'WIKI_MARKDOWN_KWARGS', {} ))

# This slug is used in URLPath if an article has been deleted. The children of the
# URLPath of that article are moved to lost and found. They keep their permissions
# and all their content.
LOST_AND_FOUND_SLUG = getattr( django_settings, 'WIKI_LOST_AND_FOUND_SLUG', 'lost-and-found' )

# Do we want to log IPs?
LOG_IPS_ANONYMOUS = getattr( django_settings, 'WIKI_LOG_IPS_ANONYMOUS', True )
LOG_IPS_USERS = getattr( django_settings, 'WIKI_LOG_IPS_USERS', False )

####################################
# PERMISSIONS AND ACCOUNT HANDLING #
####################################

# NB! None of these callables need to handle anonymous users as they are treated
# in separate settings...

# A function returning True/False if a user has permission to
# read contents of an article + plugins
# Relevance: viewing articles and plugins
CAN_READ = getattr( django_settings, 'WIKI_CAN_READ', None )

# A function returning True/False if a user has permission to
# change contents, ie add new revisions to an article
# Often, plugins also use this
# Relevance: editing articles, changing revisions, editing plugins
CAN_WRITE = getattr( django_settings, 'WIKI_CAN_WRITE', None )

# A function returning True/False if a user has permission to assign
# permissions on an article
# Relevance: changing owner and group membership
CAN_ASSIGN = getattr( django_settings, 'WIKI_CAN_ASSIGN', None )

# A function returning True/False if the owner of an article has permission to change
# the group to a user's own groups
# Relevance: changing group membership
CAN_ASSIGN_OWNER = getattr( django_settings, 'WIKI_ASSIGN_OWNER', None )

# A function returning True/False if a user has permission to change
# read/write access for groups and others
CAN_CHANGE_PERMISSIONS = getattr( django_settings, 'WIKI_CAN_CHANGE_PERMISSIONS', None )

# Specifies if a user has access to soft deletion of articles
CAN_DELETE = getattr( django_settings, 'WIKI_CAN_DELETE', None )

# A function returning True/False if a user has permission to change
# moderate, ie. lock articles and permanently delete content.
CAN_MODERATE = getattr( django_settings, 'WIKI_CAN_MODERATE', None )

# A function returning True/False if a user has permission to create
# new groups and users for the wiki.
CAN_ADMIN = getattr( django_settings, 'WIKI_CAN_ADMIN', None )

# Treat anonymous (non logged in) users as the "other" user group
ANONYMOUS = getattr( django_settings, 'WIKI_ANONYMOUS', True )

# Globally enable write access for anonymous users, if true anonymous users will be treated
# as the others_write boolean field on models.Article. 
ANONYMOUS_WRITE = getattr( django_settings, 'WIKI_ANONYMOUS_WRITE', False )

# Globally enable create access for anonymous users
# Defaults to ANONYMOUS_WRITE.  
ANONYMOUS_CREATE = getattr( django_settings, 'WIKI_ANONYMOUS_CREATE', ANONYMOUS_WRITE )

# Default setting to allow anonymous users upload access (used in
# plugins.attachments and plugins.images). 
ANONYMOUS_UPLOAD = getattr( django_settings, 'WIKI_ANONYMOUS_UPLOAD', False )

# Sign up, login and logout views should be accessible 
ACCOUNT_HANDLING = getattr( django_settings, 'WIKI_ACCOUNT_HANDLING', True )

# Signup allowed? If it's not allowed, logged in superusers can still access
# the signup page to create new users.
ACCOUNT_SIGNUP_ALLOWED = ACCOUNT_HANDLING and getattr(
    django_settings, 'WIKI_ACCOUNT_SIGNUP_ALLOWED', True
)

if ACCOUNT_HANDLING:
    LOGIN_URL = reverse_lazy("wiki:login")
    LOGOUT_URL = reverse_lazy("wiki:logout")
    SIGNUP_URL = reverse_lazy("wiki:signup")
else:
    LOGIN_URL = getattr( django_settings, "LOGIN_URL", "/" )
    LOGOUT_URL = getattr( django_settings, "LOGOUT_URL", "/" )
    SIGNUP_URL = getattr( django_settings, "WIKI_SIGNUP_URL", "/" )

##################
# OTHER SETTINGS #
##################

# Maximum amount of children to display in a menu before going "+more"
# NEVER set this to 0 as it will wrongly inform the user that there are no
# children and for instance that an article can be safely deleted.
SHOW_MAX_CHILDREN = getattr( django_settings, 'WIKI_SHOW_MAX_CHILDREN', 20 )

USE_BOOTSTRAP_SELECT_WIDGET = getattr( django_settings, 'WIKI_USE_BOOTSTRAP_SELECT_WIDGET', True )

#: dottedname of class used to construct urlpatterns for wiki.
#: 
#: Default is wiki.urls.WikiURLPatterns. To customize urls or view handlers,
#: you can derive from this.
URL_CONFIG_CLASS = getattr( django_settings, 'WIKI_URL_CONFIG_CLASS', 'wiki.urls.WikiURLPatterns' )

# Search view - dotted path denoting where the search view Class is located
SEARCH_VIEW = getattr(
    django_settings, 
    'WIKI_SEARCH_VIEW', 
    'wiki.views.article.SearchView' 
        if not 'haystack' in django_settings.INSTALLED_APPS 
        else
    'wiki.plugins.haystack.views.HaystackSearchView'
)

# Seconds of timeout before renewing article cache. Articles are automatically
# renewed whenever an edit occurs but article content may be generated from
# other objects that are changed.
CACHE_TIMEOUT = getattr( django_settings, 'WIKI_CACHE_TIMEOUT', 600 )

###################
# SPAM PROTECTION #
###################

# Maximum allowed revisions per hour for any given user or IP
REVISIONS_PER_HOUR = getattr( django_settings, 'WIKI_REVISIONS_PER_HOUR', 60 )

# Maximum allowed revisions per hour for any given user or IP
REVISIONS_PER_MINUTES = getattr( django_settings, 'WIKI_REVISIONS_PER_MINUTES', 5 )

# Maximum allowed revisions per hour for any given user or IP
REVISIONS_PER_HOUR_ANONYMOUS = getattr( django_settings, 'WIKI_REVISIONS_PER_HOUR_ANONYMOUS', 10 )

# Maximum allowed revisions per hour for any given user or IP
REVISIONS_PER_MINUTES_ANONYMOUS = getattr( django_settings, 'WIKI_REVISIONS_PER_MINUTES_ANONYMOUS', 2 )

# Number of minutes for looking up REVISIONS_PER_MINUTES and REVISIONS_PER_MINUTES_ANONYMOUS
REVISIONS_MINUTES_LOOKBACK = getattr( django_settings, 'WIKI_REVISIONS_MINUTES_LOOKBACK', 2 )

###########
# STORAGE #
###########

from django.core.files.storage import default_storage
STORAGE_BACKEND = getattr(django_settings, 'WIKI_STORAGE_BACKEND', default_storage)

USE_SENDFILE = getattr(django_settings, 'WIKI_ATTACHMENTS_USE_SENDFILE', False)

####################
# PLANNED SETTINGS #
####################

# Maximum revisions to keep for an article, 0=unlimited
MAX_REVISIONS = getattr( django_settings, 'WIKI_MAX_REVISIONS', 100 )

# Maximum age of revisions in days, 0=unlimited
MAX_REVISION_AGE = getattr( django_settings, 'MAX_REVISION_AGE', 365 )

