from django.views.generic import ListView
from django.views.generic.detail import DetailView
from django.contrib.syndication.views import Feed
from django.apps import apps
from django.conf import settings

from utils.views import PaginatedListView

from .models import Post
from taxonomy.models import Category


class PostList(PaginatedListView):
    """
    Return a list of Entries in reverse chronological order
    """
    model = Post

    def get_queryset(self):
        queryset = super(PostList, self).get_queryset()
        return queryset.filter(status__exact=1).order_by('-pub_date').prefetch_related('location').prefetch_related('featured_image')


class GuidesListView(PostList):

    def get_queryset(self):
        queryset = super(GuidesListView, self).get_queryset()
        return queryset.filter(post_type__in=[0,1]).filter(status__exact=1).order_by('-pub_date').prefetch_related('location').prefetch_related('featured_image')
    
    def get_context_data(self, **kwargs):
        context = super(GuidesListView, self).get_context_data(**kwargs)
        context['archive_type'] = 'Guides' 
        return context


class EssayListView(PostList):
    template_name = "posts/essay_list.html"

    def get_queryset(self):
        queryset = super(EssayListView, self).get_queryset()
        return queryset.filter(post_type__in=[2,]).filter(status__exact=1).order_by('-pub_date').prefetch_related('location').prefetch_related('featured_image')


class PostDetailView(DetailView):
    model = Post 
    slug_field = "slug"

    def get_queryset(self):
        queryset = super(PostDetailView, self).get_queryset()
        return queryset.select_related('location').prefetch_related('field_notes')

    def get_context_data(self, **kwargs):
        context = super(PostDetailView, self).get_context_data(**kwargs)
        related = []
        for obj in self.object.related.all():
            model = apps.get_model(obj.post_model.app_label, obj.post_model.model)
            related.append(model.objects.get(slug=obj.slug))
        context['related'] = related
        return context

    def get_template_names(self):
        obj = self.get_object()
        return ["posts/%s_detail.html" % obj.get_post_type_display(), 'posts/post_detail.html']

class PostDetailViewTXT(PostDetailView):
    template_name = "posts/entry_detail.txt"


class PostsRSSFeedView(Feed):
    title = "VanLifeReviews.com: "
    link = "/"
    description = "Latest reviews, stories and guides"
    description_template = 'feeds/blog_description.html'

    def items(self):
        return Post.objects.filter(status__exact=1).order_by('-pub_date')[:10]
    
    def item_pubdate(self, item):
        """
        Takes an item, as returned by items(), and returns the item's
        pubdate.
        """
        return item.pub_date