# -*- coding: utf-8 -*-
from functools import update_wrapper, partial

from django.contrib import admin
from django.contrib.admin.util import unquote
from django.conf.urls import patterns, url
from django.core.exceptions import PermissionDenied
from django.core.urlresolvers import reverse_lazy, reverse
from django.http import Http404
from django.utils.translation import ugettext_lazy as _
from django.utils.html import escape
from django.utils.encoding import force_text

from functions.admin import DefaultAdmin
from functions.http import JsonResponse

from .models import Comment


class CommentAdmin(DefaultAdmin):
    class Media:
        js = (
            "js/jquery.truncator.js",
            "admin/js/comments_manage.js",
        )
        # css = {
        #     'all': ("admin/css/comments_manage.css",),
        # }
    list_display = ['text', 'ip', 'user', 'hide']
    list_select_related = True
    list_filter = ('hidden', )
    date_hierarchy = 'created'
    readonly_fields = ['ip', 'created', 'parent', 'user']
    fieldsets = (
        (None,
            {'fields': (('created', 'hidden',),
                        'ip',
                        'user',
                        'text', )}),
    )

    def hide(self, obj):
        body = u'<img src="{url}" alt={alt}>' \
               u'&nbsp;<a class="action" href="{href}">{label}</a>' \
               u'&nbsp;|&nbsp;<a class="action" href="{href2}">{label2}</a>'\
            .format(**self.get_yesno_image_data(obj))
        return body
    hide.short_description = _(u'Модерирование')
    hide.allow_tags = True

    def urls(self):
        urlpatterns = self.get_urls()
        def wrap(view):
            def wrapper(*args, **kwargs):
                return self.admin_site.admin_view(view)(*args, **kwargs)
            return update_wrapper(wrapper, view)
        info = self.model._meta.app_label, self.model._meta.module_name
        _urlpatterns = patterns('',
           url(r'^(?P<object_id>\d+)/ajax/(?P<action>hide|show|banro|unbanro)/$',
               wrap(self.ajax_view),
               name='%s_%s_ajax' % info),
           )
        return _urlpatterns + urlpatterns
    urls = property(urls)

    def get_yesno_image_data(self, obj):
        return {
            'url': '/static/admin/img/icon-{0}.gif'.format('no' if obj.hidden else 'yes'),
            'alt': str(not obj.hidden),
            'href': reverse('admin:comments_comment_ajax', args=[obj.id, 'hide' if not obj.hidden else 'show']),
            'label': unicode(_(u'Опубликовать') if obj.hidden else _(u'Скрыть')),
            'href2': reverse('admin:comments_comment_ajax', args=[obj.id, 'banro' if not obj.user.readonly else 'unbanro']),
            'label2': unicode(_(u'Снять RO') if obj.user.readonly else _(u'Наложить RO')),
        }

    def ajax_view(self, request, object_id, extra_context=None, *args, **kwargs):
        "The 'change' admin view for this model."
        action = kwargs.get('action')
        model = self.model
        opts = model._meta
        obj = self.get_object(request, unquote(object_id))
        if not self.has_change_permission(request, obj) or not request.is_ajax():
            raise PermissionDenied
        if obj is None:
            raise Http404(_('%(name)s object with primary key %(key)r does not exist.') % {'name': force_text(opts.verbose_name), 'key': escape(object_id)})

        if action in ['hide', 'show']:
            obj.hidden = True if action == 'hide' else False
            obj.save()
        else:
            obj.user.readonly = True if action == 'banro' else False
            obj.user.save()

        return JsonResponse(dict({'success': True}, **self.get_yesno_image_data(obj)))
    ajax_view.csrf_exempt = True

admin.site.register(Comment, CommentAdmin)