from collections import OrderedDict
import datetime

from django.utils.translation import gettext_lazy as _
from django.views.generic import ListView

from ..models import Diffusion, Episode, Program, StaticPage, Sound
from .base import BaseView
from .program import ProgramPageDetailView
from .page import PageListView
from .mixins import AttachedToMixin, GetDateMixin, ParentMixin


__all__ = ['EpisodeDetailView', 'EpisodeListView', 'DiffusionListView', 'SoundListView']


class EpisodeDetailView(ProgramPageDetailView):
    model = Episode

    def get_context_data(self, **kwargs):
        if not 'tracks' in kwargs:
            kwargs['tracks'] = self.object.track_set.order_by('position')
        return super().get_context_data(**kwargs)


class EpisodeListView(PageListView):
    model = Episode
    item_template_name = 'aircox/widgets/episode_item.html'
    has_headline = True
    parent_model = Program
    attach_to_value = StaticPage.ATTACH_TO_EPISODES

    def get_queryset(self):
        qs = super().get_queryset()
        if self.filters and 'podcasts' in self.filters:
            qs = qs.filter(sound__is_public=True)
        return qs

    def get_filters(self):
        return super().get_filters() + (
            (_('Podcasts'), 'podcasts', tuple()),
        )


class DiffusionListView(GetDateMixin, AttachedToMixin, BaseView, ListView):
    """ View for timetables """
    model = Diffusion
    has_filters = True
    redirect_date_url = 'diffusion-list'
    attach_to_value = StaticPage.ATTACH_TO_DIFFUSIONS

    def get_date(self):
        date = super().get_date()
        return date if date is not None else datetime.date.today()

    def get_queryset(self):
        return super().get_queryset().date(self.date).order_by('start')

    def get_context_data(self, **kwargs):
        start = self.date - datetime.timedelta(days=self.date.weekday())
        dates = [start + datetime.timedelta(days=i) for i in range(0, 7)]
        return super().get_context_data(date=self.date, dates=dates, **kwargs)