from django.shortcuts import render
from django.template.loader import render_to_string
from django.utils.timezone import datetime, timedelta
from django.utils import timezone
from django.db.models.functions import ExtractWeek, ExtractYear


from ..item import models
from ..item.views import get_weeks


def week(year, month, day):
    now = timezone.make_aware(datetime.now(), timezone.get_default_timezone())
    context = {}
    archive = models.Item.objects.filter(
        published__lte=now
    ).annotate(
        year=ExtractYear('published')
    ).annotate(
        week=ExtractWeek('published')
    )
    date = datetime.strptime('%s-%s-%s' % (year, month, day), '%Y-%m-%d')
    week = int(date.strftime('%W'))
    year = int(year)
    archive_week = archive.filter(year=year, week=week).order_by('published')
    context['weeks'] = get_weeks(archive)
    monday = context['this_week'] = date.strftime('%Y-%m-%d')
    context['this_year'] = date.strftime('%Y')
    context['week_title'] = 'Phantas.ma weekly update %s' % views.format_week(monday)
    extra = models.Week.objects.filter(monday=context['this_week']).first()
    if extra:
        context['week_title'] += ': ' + extra.title
    context['items'] = archive_week
    return render_to_string("weekly_email.html", context)