from django.views.generic import CreateView, UpdateView, ListView
from django.urls import reverse_lazy
from django.http import HttpResponseRedirect
from django.db.models import F
from django.shortcuts import get_list_or_404

from .models import PartnerProfile, Establishment
from .mixins import PartnerProfileRequiredMixin

from auction.models import Inquiry, Offer
from public.mixins import InConstructionMixin
from localauth.mixins import LoginRequiredMixin

class PartnerRegistrationView(InConstructionMixin, LoginRequiredMixin, CreateView):
    model = PartnerProfile
    exclude = ["user"]
    template_name = "partners/signup.html"
    fields = ["company", "vat_id", "first_name", "last_name", "street", "city", "zip", "state", "country"]

    def dispatch(self, request, *args, **kwargs):
        try:
            PartnerProfile.objects.get(user=request.user)
            return HttpResponseRedirect(reverse_lazy("partners:profile"))
        except (PartnerProfile.DoesNotExist, TypeError):
            return super().dispatch(request, *args, **kwargs)

    def form_valid(self, form):
        form.instance.user = self.request.user
        return super().form_valid(form)

    def get_success_url(self):
        messages.success(self.request, "Profil erfolgreich angelegt!")
        return reverse_lazy("partners:profile")

    def get_initial(self):
        try:
            client = self.request.user.clientprofile

            return {
                "company": client.company,
                "vat_id": client.vat_id,
                "first_name": client.first_name,
                "last_name": client.last_name,
                "street": client.street,
                "city": client.city,
                "zip": client.zip,
                "state": client.state,
                "country": client.country
            }

        except:
            return {}

class PartnerProfileView(InConstructionMixin, PartnerProfileRequiredMixin, UpdateView):
    model = PartnerProfile
    exclude = ["user"]
    template_name = "partners/profile.html"
    fields = ["company", "vat_id", "first_name", "last_name", "street", "city", "zip", "state", "country"]

    def get_success_url(self):
        return reverse_lazy("partners:profile")

    def get_object(self, queryset=None):
        return self.request.user.partnerprofile

class BiddingListView(InConstructionMixin, PartnerProfileRequiredMixin, ListView):
    model = Inquiry
    template_name = "partners/bidding_list.html"

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.establishment = self.get_establishment()

    def get_establishment(self):
        establishment = self.kwargs.get("id", None)
        kwargs = {"owner": self.request.user.partnerprofile}

        if establishment:
            kwargs["id"] = establishment

        return get_list_or_404(Establishment, **kwargs).first()

    def get_queryset(self):
        return Inquiry.objects.filter(active=True).distance(self.establishment.coords).filter(distance__lte=F("destination_radius"))

class OffersListView(InConstructionMixin, PartnerProfileRequiredMixin, ListView):
    model = Offer
    template_name = "partners/offer_list.html"

    def get_queryset(self):
        return Offer.objects.filter(establishment__in=self.request.user.partnerprofile.establishment_set.all())

class EstablishmentsListView(InConstructionMixin, PartnerProfileRequiredMixin, ListView):
    model = Establishment
    template_name = "partners/establishment_list.html"

    def get_queryset(self):
        return self.request.user.partnerprofile.establishment_set

class EstablishmentRequestView(InConstructionMixin, PartnerProfileRequiredMixin, ListView):
    model = Establishment
    template_name = "partners/establishment_edit.html"