Create Hello Asso checkout intents

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

registration/models.py

@@ -1,13 +1,13 @@
 # Copyright (C) 2020 by Animath
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from datetime import date
+from datetime import date, datetime
 
 from django.contrib.sites.models import Site
 from django.core.validators import MaxValueValidator, MinValueValidator
 from django.db import models
 from django.template import loader
-from django.urls import reverse_lazy
+from django.urls import reverse_lazy, reverse
 from django.utils import timezone
 from django.utils.crypto import get_random_string
 from django.utils.encoding import force_bytes
@@ -16,6 +16,8 @@ from django.utils.text import format_lazy
 from django.utils.translation import gettext_lazy as _
 from phonenumber_field.modelfields import PhoneNumberField
 from polymorphic.models import PolymorphicModel
+
+from tfjm import helloasso
 from tfjm.tokens import email_validation_token
 
 
@@ -564,6 +566,46 @@ class Payment(models.Model):
         default=False,
     )
 
+    def get_checkout_intent(self):
+        if self.checkout_intent_id is None:
+            return None
+        return helloasso.get_checkout_intent(self.checkout_intent_id)
+
+    def create_checkout_intent(self):
+        checkout_intent = self.get_checkout_intent()
+        if checkout_intent is not None:
+            return checkout_intent
+
+        from participation.models import Tournament
+        tournament = self.registrations.first().team.participation.tournament \
+            if not self.final else Tournament.final_tournament()
+        year = datetime.now().year
+        base_site = "https://" + Site.objects.first().domain
+        checkout_intent = helloasso.create_checkout_intent(
+            amount=100 * self.amount,
+            name=f"Participation au TFJM² {year} - {tournament.name}",
+            back_url=base_site + reverse('registration:update_payment', args=(self.id,)),
+            error_url=base_site + reverse('registration:update_payment', args=(self.id,)),
+            return_url=base_site + reverse('registration:update_payment', args=(self.id,)),
+            contains_donation=False,
+            metadata=dict(
+                users=[
+                    dict(user_id=registration.user.id,
+                         first_name=registration.user.first_name,
+                         last_name=registration.user.last_name,
+                         email=registration.user.email,)
+                    for registration in self.registrations.all()
+                ],
+                payment_id=self.id,
+                final=self.final,
+                tournament_id=tournament.id,
+            )
+        )
+        self.checkout_intent_id = checkout_intent["id"]
+        self.save()
+
+        return checkout_intent
+
     def get_absolute_url(self):
         return reverse_lazy("registration:update_payment", args=(self.pk,))