from django.db.models import Func, F
from django.utils.timezone import now
from paymentwall.pingback import Pingback

from apps.config.models import Config
from apps.content.models import Baner
from apps.payment.models import SchoolPayment


def config(request):
    return {"config": Config.load()}


def baner(request):
    return {'baner': Baner.objects.filter(use=True).first()}


def school_purchased(request):
    if request.user.is_authenticated:
        n = now().date()
        school_payment = SchoolPayment.objects.filter(
            user=request.user,
            status__in=[
                Pingback.PINGBACK_TYPE_REGULAR,
                Pingback.PINGBACK_TYPE_GOODWILL,
                Pingback.PINGBACK_TYPE_RISK_REVIEWED_ACCEPTED,
            ],
            date_start__lte=n,
            date_end__gte=n
        )
        school_schedules_purchased = school_payment.annotate(
            joined_weekdays=Func(F('weekdays'), function='unnest', )
        ).values_list('joined_weekdays', flat=True).distinct()
        return {
            'is_school_purchased': school_payment.exists(),
            'school_schedules_purchased': school_schedules_purchased,
        }
    return {
        'is_school_purchased': False,
        'school_schedules_purchased': [],
    }