from django.views.generic import TemplateView
from django.urls import reverse_lazy
from django.views.generic import UpdateView, DeleteView, CreateView, ListView, DetailView
from cards.models import Card
from trades.models import TradeOffer

class CardDetailView(DetailView):
    model = Card
    template_name = "cards/card_detail.html"
    context_object_name = "card"

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        card = self.get_object()
        # Count of trade offers where the card appears as a "have" in a trade.
        context['trade_offer_have_count'] = TradeOffer.objects.filter(
            trade_offer_have_cards__card=card
        ).distinct().count()
        # Count of trade offers where the card appears as a "want" in a trade.
        context['trade_offer_want_count'] = TradeOffer.objects.filter(
            trade_offer_want_cards__card=card
        ).distinct().count()
        return context


class TradeOfferHaveCardListView(ListView):
    model = TradeOffer
    template_name = "cards/_trade_offer_list.html"
    context_object_name = "trade_offers"
    paginate_by = 2

    def get_queryset(self):
        card_id = self.kwargs.get("pk")
        order_param = self.request.GET.get("order", "newest")
        ordering = "-updated_at" if order_param == "newest" else "updated_at"
        return TradeOffer.objects.filter(
            trade_offer_have_cards__card_id=card_id
        ).order_by(ordering).distinct()

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['side'] = 'have'
        return context


class TradeOfferWantCardListView(ListView):
    model = TradeOffer
    template_name = "cards/_trade_offer_list.html"
    context_object_name = "trade_offers"
    paginate_by = 2

    def get_queryset(self):
        card_id = self.kwargs.get("pk")
        order_param = self.request.GET.get("order", "newest")
        ordering = "-updated_at" if order_param == "newest" else "updated_at"
        return TradeOffer.objects.filter(
            trade_offer_want_cards__card_id=card_id
        ).order_by(ordering).distinct()

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['side'] = 'want'
        return context