Source code for shuup.admin.modules.orders.views.payment

# -*- coding: utf-8 -*-
# This file is part of Shuup.
#
# Copyright (c) 2012-2021, Shuup Commerce Inc. All rights reserved.
#
# This source code is licensed under the OSL-3.0 license found in the
# LICENSE file in the root directory of this source tree.
from __future__ import unicode_literals

from django import forms
from django.contrib import messages
from django.http.response import HttpResponseRedirect
from django.utils.translation import ugettext_lazy as _
from django.views.generic import DetailView, UpdateView
from django.views.generic.edit import BaseDeleteView

from shuup.admin.toolbar import PostActionButton, Toolbar
from shuup.admin.utils.forms import add_form_errors_as_messages
from shuup.admin.utils.urls import get_model_url
from shuup.core.excs import NoPaymentToCreateException
from shuup.core.models import Order, PaymentStatus, Shop
from shuup.utils.money import Money


class OrderCreatePaymentView(UpdateView):
    model = Order
    template_name = "shuup/admin/orders/create_payment.jinja"
    context_object_name = "order"
    form_class = forms.Form  # Augmented manually

    def get_queryset(self):
        shop_ids = Shop.objects.get_for_user(self.request.user).values_list("id", flat=True)
        return Order.objects.exclude(deleted=True).filter(shop_id__in=shop_ids)

    def get_context_data(self, **kwargs):
        context = super(OrderCreatePaymentView, self).get_context_data(**kwargs)
        context["title"] = _("Create Payment -- %s") % context["order"]
        context["toolbar"] = Toolbar(
            [
                PostActionButton(
                    icon="fa fa-check-circle",
                    form_id="create_payment",
                    text=_("Create Payment"),
                    extra_css_class="btn-success",
                ),
            ],
            view=self,
        )
        return context

    def get_form_kwargs(self):
        kwargs = super(OrderCreatePaymentView, self).get_form_kwargs()
        kwargs.pop("instance")
        return kwargs

    def get_form(self, form_class=None):
        form = super(OrderCreatePaymentView, self).get_form(form_class)
        order = self.object
        form.fields["amount"] = forms.DecimalField(
            required=True,
            min_value=0,
            max_value=order.get_total_unpaid_amount().value,
            initial=0,
            label=_("Payment amount"),
        )
        return form

    def form_invalid(self, form):
        add_form_errors_as_messages(self.request, form)
        return super(OrderCreatePaymentView, self).form_invalid(form)

    def form_valid(self, form):
        order = self.object
        amount = Money(form.cleaned_data["amount"], order.currency)
        if amount.value == 0:
            messages.error(self.request, _("Payment amount cannot be 0."))
            return self.form_invalid(form)
        try:
            payment = order.create_payment(amount, description="Manual payment")
            messages.success(self.request, _("Payment %s created.") % payment.payment_identifier)
        except NoPaymentToCreateException:
            messages.error(self.request, _("Order has already been paid."))
            return self.form_invalid(form)
        else:
            return HttpResponseRedirect(get_model_url(order))


class OrderSetPaidView(DetailView):
    model = Order

    def get_queryset(self):
        shop_ids = Shop.objects.get_for_user(self.request.user).values_list("id", flat=True)
        return Order.objects.exclude(deleted=True).filter(shop_id__in=shop_ids)

    def get(self, request, *args, **kwargs):
        return HttpResponseRedirect(get_model_url(self.get_object()))

    def post(self, request, *args, **kwargs):
        order = self.object = self.get_object()
        error = False
        if order.payment_status not in (PaymentStatus.DEFERRED, PaymentStatus.NOT_PAID):
            error = True
            messages.error(self.request, _("Only orders which are not paid or deferred can be set as paid."))
        if order.taxful_total_price:
            error = True
            messages.error(self.request, _("Only zero price orders can be set as paid without creating a payment."))
        if not error:
            amount = Money(0, order.shop.currency)
            order.create_payment(amount, description=_("Zero amount payment"))
            messages.success(self.request, _("Order marked as paid."))
        return HttpResponseRedirect(get_model_url(self.get_object()))


class OrderDeletePaymentView(BaseDeleteView):
    model = Order

    def get_queryset(self):
        shop_ids = Shop.objects.get_for_user(self.request.user).values_list("id", flat=True)
        return Order.objects.incomplete().filter(shop_id__in=shop_ids)

    def delete(self, request, *args, **kwargs):
        order = self.get_object()
        payment_id = request.POST.get("payment")
        order_url = get_model_url(self.get_object())
        payment = order.payments.filter(pk=payment_id).first() if payment_id else None

        if not payment:
            messages.error(self.request, _("Payment doesn't exist."))
            return HttpResponseRedirect(order_url)

        payment.delete()
        order.update_payment_status()
        messages.success(self.request, _("Payment deleted."))
        return HttpResponseRedirect(order_url)