# -*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2019  Gabriel Détraz
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from cotisations.models import Facture, Vente
from cotisations.utils import find_payment_method
from django.contrib.auth import login
from django.db import transaction
from django.urls import reverse_lazy
from django.views.generic import CreateView

from .forms import AdherentForm, MembershipForm


class SignUpView(CreateView):
    form_class = AdherentForm
    template_name = "portail/signup.html"

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["membership_form"] = MembershipForm(self.request.POST or None)
        return context

    @transaction.atomic
    def form_valid(self, form):
        membership_form = MembershipForm(self.request.POST or None)

        if not membership_form.is_valid():
            return self.form_invalid(form)

        form.save()

        user = form.instance
        login(self.request, form.instance)

        payment_method = membership_form.cleaned_data["payment_method"]
        article = membership_form.cleaned_data["article"]

        true_payment_method = find_payment_method(payment_method)
        if hasattr(true_payment_method, "check_price"):
            price_ok, msg = true_payment_method.check_price(article.prix, user)
            if not price_ok:
                membership_form.add_error(None, msg)
                return self.form_invalid(membership_form)

        invoice = Facture.objects.create(
            user=user,
            paiement=payment_method,
        )

        Vente.objects.create(
            facture=invoice,
            name=article.name,
            prix=article.prix,
            duration_connection=article.duration_connection,
            duration_days_connection=article.duration_days_connection,
            duration_membership=article.duration_membership,
            duration_days_membership=article.duration_days_membership,
            number=1,
        )

        super().form_valid(form)

        # POOP CODE, pliz Re2o
        return payment_method.end_payment(invoice, self.request)

    def get_success_url(self):
        return reverse_lazy("users:profil", args=(self.object.pk,))