# -*- coding: utf-8 -*-

from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist
from django.utils.translation import ugettext as _
from django.http import Http404

from rest_framework import generics
from rest_framework.permissions import IsAuthenticated

from greenmine.base.api import ModelCrudViewSet

from . import models
from . import serializers
from . import permissions


class WikiViewSet(ModelCrudViewSet):
    model = models.WikiPage
    serializer_class = serializers.WikiPageSerializer
    permission_classes = (IsAuthenticated,)
    filter_fields = ["project"]

    def get_queryset(self):
        qs = super(WikiViewSet, self).get_queryset()
        return qs.filter(project__members=self.request.user)

    def pre_save(self, obj):
        obj.owner = self.request.user

    def get_object(self, queryset=None):
        if queryset is None:
            queryset = self.get_queryset()

        queryset = queryset.filter(project=self.kwargs["projectid"],
                                   slug=self.kwargs["slug"])
        try:
            # Get the single item from the filtered queryset
            obj = queryset.get()
        except ObjectDoesNotExist:
            raise Http404(_("No {verbose_name} found matching the query").format(
                          verbose_name=queryset.model._meta.verbose_name))
        return obj