from boards.abstracts.settingsmanager import get_settings_manager, \
    SETTING_USERNAME, SETTING_LAST_NOTIFICATION_ID
from boards.models.user import Notification

__author__ = 'neko259'

from boards import settings
from boards.models import Post

CONTEXT_SITE_NAME = 'site_name'
CONTEXT_VERSION = 'version'
CONTEXT_MODERATOR = 'moderator'
CONTEXT_THEME_CSS = 'theme_css'
CONTEXT_THEME = 'theme'
CONTEXT_PPD = 'posts_per_day'
CONTEXT_TAGS = 'tags'
CONTEXT_USER = 'user'
CONTEXT_NEW_NOTIFICATIONS_COUNT = 'new_notifications_count'
CONTEXT_USERNAME = 'username'

PERMISSION_MODERATE = 'moderation'


def get_notifications(context, request):
    settings_manager = get_settings_manager(request)
    username = settings_manager.get_setting(SETTING_USERNAME)
    new_notifications_count = 0
    if username is not None and len(username) > 0:
        last_notification_id = settings_manager.get_setting(
            SETTING_LAST_NOTIFICATION_ID)
        if last_notification_id is not None:
            new_notifications_count = Notification.objects.filter(
                id__gt=last_notification_id).filter(
                name=username).count()
        else:
            new_notifications_count = Notification.objects.filter(
                name=username).count()
    context[CONTEXT_NEW_NOTIFICATIONS_COUNT] = new_notifications_count
    context[CONTEXT_USERNAME] = username


def get_moderator_permissions(context, request):
    try:
        moderate = request.user.has_perm(PERMISSION_MODERATE)
    except AttributeError:
        moderate = False
    context[CONTEXT_MODERATOR] = moderate


def user_and_ui_processor(request):
    context = dict()

    context[CONTEXT_PPD] = float(Post.objects.get_posts_per_day())

    settings_manager = get_settings_manager(request)
    context[CONTEXT_TAGS] = settings_manager.get_fav_tags()
    theme = settings_manager.get_theme()
    context[CONTEXT_THEME] = theme
    context[CONTEXT_THEME_CSS] = 'css/' + theme + '/base_page.css'

    # This shows the moderator panel
    get_moderator_permissions(context, request)

    context[CONTEXT_VERSION] = settings.VERSION
    context[CONTEXT_SITE_NAME] = settings.SITE_NAME

    get_notifications(context, request)

    return context