from django.core.urlresolvers import resolve, reverse
from django.dispatch import receiver
from django.utils.translation import ugettext_lazy as _

from pretix.base.signals import logentry_display
from pretix.control.signals import nav_event


@receiver(nav_event, dispatch_uid="sendmail_nav")
def control_nav_import(sender, request=None, **kwargs):
    url = resolve(request.path_info)
    if not request.eventperm.can_change_orders:
        return []
    return [
        {
            'label': _('Send out emails'),
            'url': reverse('plugins:sendmail:send', kwargs={
                'event': request.event.slug,
                'organizer': request.event.organizer.slug,
            }),
            'active': (url.namespace == 'plugins:sendmail' and url.url_name == 'send'),
            'icon': 'envelope',
            'children': [
                {
                    'label': _('Send email'),
                    'url': reverse('plugins:sendmail:send', kwargs={
                        'event': request.event.slug,
                        'organizer': request.event.organizer.slug,
                    }),
                    'active': (url.namespace == 'plugins:sendmail' and url.url_name == 'send'),
                },
                {
                    'label': _('Email history'),
                    'url': reverse('plugins:sendmail:history', kwargs={
                        'event': request.event.slug,
                        'organizer': request.event.organizer.slug,
                    }),
                    'active': (url.namespace == 'plugins:sendmail' and url.url_name == 'history'),
                },
            ]
        },
    ]


@receiver(signal=logentry_display)
def pretixcontrol_logentry_display(sender, logentry, **kwargs):
    plains = {
        'pretix.plugins.sendmail.sent': _('Email was sent'),
        'pretix.plugins.sendmail.order.email.sent': _('The order received a mass email.')
    }
    if logentry.action_type in plains:
        return plains[logentry.action_type]
