from django.conf import settings
from django.shortcuts import render, redirect, get_object_or_404
from django.views.decorators.http import require_POST
from django.views.decorators.csrf import csrf_exempt
from django.contrib.auth.decorators import login_required
from django.contrib import auth
from django.views.generic import ListView
from django.utils.translation import ugettext_lazy as _

from cart.models import Buying
from core.views import ProtectedListView

from .cart import Cart
from .forms import CartAddProductForm


# from discount.layout import DiscountApllyForm

# @csrf_exempt
# @require_POST
# @login_required(login_url='accounts_ext:accounts_ext')
# def CartAdd(request):
#     cart = Cart(request)
#     form = CartAddProductForm(request.POST)
#     if form.is_valid():
#         cd = form.cleaned_data
#         if int(cd['quantity']) < 1 or int(cd['quantity']) > 1000:
#             return redirect(request.META.get('HTTP_REFERER'))
#         offer = get_object_or_404(Offer, slug=cd['product_slug'])
#         cart.add(offer=offer, price_per_itom=cd['price_per_itom'], quantity=cd['quantity'],
#                  update_quantity=cd['update'])
#         request.session.pop('points', None)
#     return redirect('cart:CartDetail')
#
# @csrf_exempt
# @login_required(login_url='accounts_ext:accounts_ext')
# def CartRemove(request, offer_slug):
#     cart = Cart(request)
#     # offer = get_object_or_404(Offer, slug=offer_slug)
#     cart.remove(offer_slug)
#     request.session.pop('points', None)
#     return redirect('cart:CartDetail')
#
# @csrf_exempt
# @login_required(login_url='accounts_ext:accounts_ext')
# def CartDetail(request):
#     user = auth.get_user(request)
#     cart = Cart(request)
#     for item in cart:
#         item['update_quantity_form'] = CartAddProductForm(
#                                         initial={
#                                             'quantity': item['quantity'],
#                                             'product_slug': item['offer'].slug,
#                                             'price_per_itom': item['price'],
#                                             'update': True
#                                         })
#     # discount_apply_form = DiscountApllyForm()
#     return render(request, 'cart/detail.html', {'username': user.username})
#                                                 # 'discount_apply_form': discount_apply_form})


class CartView(ProtectedListView):
    model = Buying
    paginate_by = settings.DEFAULT_PAGE_AMOUNT
    context_object_name = 'cart_items'
    template_name = 'cart/cart.html'
    ordering = '-create_at'
    title = _('Корзина')

    def get_queryset(self):
        qs = super().get_queryset()
        return qs.filter(user=self.request.user)

    def get_context_data(self, *, object_list=None, **kwargs):
        context = super().get_context_data(object_list=object_list, **kwargs)
        context['title'] = self.title
        return context


class BuyingsHistory(ProtectedListView):
    model = Buying
    paginate_by = settings.DEFAULT_PAGE_AMOUNT
    context_object_name = 'bought_item_list'
    ordering = '-create_at'
    template_name = 'cart/bought_history.html'
    title = _('История покупок')

    def get_queryset(self):
        qs = super().get_queryset()
        return qs.filter(user=self.request.user)

    def get_context_data(self, *, object_list=None, **kwargs):
        context = super().get_context_data(object_list=object_list, **kwargs)
        context['title'] = self.title
        return context