from django.utils.translation import ugettext as _
from django.http import HttpResponse, HttpResponseRedirect
from django.utils import simplejson
from django.utils.encoding import smart_str
from django.shortcuts import render_to_response
from forum.modules import decorate
from forum import views
from lib.akismet import Akismet
from forum.settings import APP_URL, OSQA_VERSION
from settings import WORDPRESS_API_KEY, REP_FOR_NO_SPAM_CHECK
from forum.models.user import User

import settings

def can_bypass_spam_check(user):
    return user.is_authenticated() and (user.is_superuser or user.is_staff or cmp(user.reputation, REP_FOR_NO_SPAM_CHECK
                                                                                  ) > 0)


def check_spam(param, comment_type):
    def wrapper(origin, request, *args, **kwargs):
        if request.POST and request.POST.get(param, None) and WORDPRESS_API_KEY and (not can_bypass_spam_check(
                request.user)):
            comment = smart_str(request.POST[param])

            data = {
            "user_ip":request.META["REMOTE_ADDR"],
            "user_agent":request.environ['HTTP_USER_AGENT'],
            "comment_type": comment_type,
            "comment":comment
            }

            if request.user.is_authenticated():
                data.update({
                "comment_author":smart_str(request.user.username),
                "comment_author_email":request.user.email,
                "comment_author_url":request.user.website,
                })

            api = Akismet(settings.WORDPRESS_API_KEY, APP_URL, "OSQA/%s" % OSQA_VERSION)
            if api.comment_check(comment, data):
                if request.is_ajax():
                    response = {
                    'success': False,
                    'error_message': _("Sorry, but akismet thinks your %s is spam.") % comment_type
                    }
                    return HttpResponse(simplejson.dumps(response), mimetype="application/json")
                else:
                    return render_to_response('modules/akismet/foundspam.html', {
                    'action_name': comment_type
                    })

        return origin(request, *args, **kwargs)

    return wrapper


decorate(views.writers.ask)(check_spam('text', _('question')))
decorate(views.writers.answer)(check_spam('text', _('answer')))
decorate(views.commands.comment)(check_spam('comment', _('comment')))