from django.views.generic import ListView
from django.views.generic.detail import DetailView
from django.views.generic.dates import DateDetailView
from django.urls import reverse
from django.views.generic.dates import YearArchiveView, MonthArchiveView
from django.contrib.syndication.views import Feed
from django.apps import apps
from django.shortcuts import get_object_or_404
from django.conf import settings
from django.db.models import Q

from utils.views import PaginatedListView

from .models import Entry, HomepageCurrator, Home
from locations.models import LuxCheckIn, Country, Region, Location
from sightings.models import Sighting


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

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


class EntryCountryList(PaginatedListView):
    """
    Return a list of Entries by Country in reverse chronological order
    """
    model = Entry

    def get_context_data(self, **kwargs):
        # Call the base implementation first to get a context
        context = super(EntryCountryList, self).get_context_data(**kwargs)
        try:
            context['region'] = Country.objects.get(slug__exact=self.kwargs['slug'])
        except:
            context['region'] = Region.objects.get(slug__exact=self.kwargs['slug'])
        return context

    def get_queryset(self):
        try:
            region = Country.objects.get(slug__exact=self.kwargs['slug'])
            qs = Entry.objects.filter(
                status__exact=1,
                location__state__country=region
            ).order_by('-pub_date')
        except:
            region = Region.objects.get(slug__exact=self.kwargs['slug'])
            qs = Entry.objects.filter(
                status__exact=1,
                location__state__country__lux_region=region.id
            ).order_by('-pub_date')
        return qs


class EntryYearArchiveView(YearArchiveView):
    queryset = Entry.objects.filter(status__exact=1).select_related()
    date_field = "pub_date"
    make_object_list = True
    allow_future = True
    template_name = "archives/writing_date.html"


class EntryMonthArchiveView(MonthArchiveView):
    queryset = Entry.objects.filter(status__exact=1).select_related()
    date_field = "pub_date"
    allow_future = True
    template_name = "archives/writing_date.html"


class EntryDetailView(DateDetailView):
    model = Entry
    date_field = 'pub_date'
    slug_field = "slug"

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

    def get_object(self, queryset=None):
        obj = get_object_or_404(
            self.model,
            slug=self.kwargs['slug'],
            pub_date__month=self.kwargs['month'],
            pub_date__year=self.kwargs['year']
        )
        self.location = obj.location
        return obj

    def get_context_data(self, **kwargs):
        context = super(EntryDetailView, self).get_context_data(**kwargs)
        context['wildlife'] = Sighting.objects.filter(
            Q(location=self.location) |
            Q(location__in=Location.objects.filter(parent=self.location))
        ).select_related().order_by('ap_id', 'ap__apclass__kind').distinct("ap")
        related = []
        for obj in self.object.related.all():
            model = apps.get_model(obj.model_name.app_label, obj.model_name.model)
            related.append(model.objects.get(slug=obj.slug, pub_date=obj.pub_date))
        context['related'] = related
        context['breadcrumbs'] = ("jrnl",)
        context['crumb_url'] = reverse('jrnl:list')
        return context


class EntryDetailViewTXT(EntryDetailView):
    template_name = "jrnl/entry_detail.txt"


class HomepageList(ListView):
    """
    Return a main entry and list of Entries in reverse chronological order
    """
    model = Entry

    def get_home(self):
        return Home.objects.filter(pk=1).prefetch_related('featured_image').select_related('featured').select_related('featured__location').get()

    def get_queryset(self):
        queryset = super(HomepageList, self).get_queryset()
        self.home = self.get_home()
        return queryset.filter(status__exact=1).order_by('-pub_date').exclude().select_related('location').select_related('featured_image')[1:9]

    def get_template_names(self):
        return ['%s' % self.home.template_name]

    def get_context_data(self, **kwargs):
        # Call the base implementation first to get a context
        context = super(HomepageList, self).get_context_data(**kwargs)
        context['homepage'] = self.home
        context['location'] = LuxCheckIn.objects.latest()
        context['IMAGES_URL'] = settings.IMAGES_URL
        return context


class JrnlLatestView(EntryDetailView):
    template_name = "details/entry_latest.html"

    def get_object(self, queryset=None):
        obj = self.model.objects.filter(status=1).latest()
        self.location = obj.location
        return obj


class JrnlRSSFeedView(Feed):
    title = "Luxagraf: Topographical Writings"
    link = "/jrnl/"
    description = "Latest postings to luxagraf.net"
    description_template = 'feeds/blog_description.html'

    def items(self):
        return Entry.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