General A/B testing.

[wolnelektury.git] / src / club / models.py

diff --git a/src/club/models.py b/src/club/models.py
index 1777174..62c1069 100644 (file)
--- a/src/club/models.py
+++ b/src/club/models.py
@@ -1,14 +1,18 @@
-# -*- coding: utf-8
-from __future__ import unicode_literals
-
-from datetime import timedelta
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from datetime import datetime, timedelta

 from django.conf import settings
 from django.conf import settings

+from django.contrib.sites.models import Site
+from django.core.mail import send_mail

 from django.urls import reverse
 from django.db import models
 from django.urls import reverse
 from django.db import models

+from django import template

 from django.utils.timezone import now
 from django.utils.timezone import now

-from django.utils.translation import ugettext_lazy as _, ungettext
+from django.utils.translation import ugettext_lazy as _, ungettext, ugettext, get_language

 from catalogue.utils import get_random_hash
 from .payment_methods import methods, method_by_slug
 from catalogue.utils import get_random_hash
 from .payment_methods import methods, method_by_slug

+from .payu import models as payu_models

 
 
 class Plan(models.Model):
 
 
 class Plan(models.Model):


@@ -23,9 +27,11 @@ class Plan(models.Model):
     ]
 
     interval = models.SmallIntegerField(_('inteval'), choices=intervals)
     ]
 
     interval = models.SmallIntegerField(_('inteval'), choices=intervals)

-    min_amount = models.DecimalField(_('min_amount'), max_digits=10, decimal_places=2)
+    min_amount = models.DecimalField(_('min amount'), max_digits=10, decimal_places=2)
+    default_amount = models.DecimalField(_('default amount'), max_digits=10, decimal_places=2)

     allow_recurring = models.BooleanField(_('allow recurring'))
     allow_one_time = models.BooleanField(_('allow one time'))
     allow_recurring = models.BooleanField(_('allow recurring'))
     allow_one_time = models.BooleanField(_('allow one time'))

+    active = models.BooleanField(_('active'), default=True)

 
     class Meta:
         verbose_name = _('plan')
 
     class Meta:
         verbose_name = _('plan')


@@ -44,7 +50,7 @@ class Plan(models.Model):
 
     def get_next_installment(self, date):
         if self.interval == self.PERPETUAL:
 
     def get_next_installment(self, date):
         if self.interval == self.PERPETUAL:

-            return None
+            return datetime.max - timedelta(1)

         elif self.interval == self.YEAR:
             return date.replace(year=date.year + 1)
         elif self.interval == self.MONTH:
         elif self.interval == self.YEAR:
             return date.replace(year=date.year + 1)
         elif self.interval == self.MONTH:


@@ -55,7 +61,6 @@ class Plan(models.Model):
             return date
             
 
             return date
             
 

-

 class Schedule(models.Model):
     """ Represents someone taking up a plan. """
     key = models.CharField(_('key'), max_length=255, unique=True)
 class Schedule(models.Model):
     """ Represents someone taking up a plan. """
     key = models.CharField(_('key'), max_length=255, unique=True)


@@ -64,11 +69,11 @@ class Schedule(models.Model):
     plan = models.ForeignKey(Plan, verbose_name=_('plan'), on_delete=models.PROTECT)
     amount = models.DecimalField(_('amount'), max_digits=10, decimal_places=2)
     method = models.CharField(_('method'), max_length=255, choices=[(method.slug, method.name) for method in methods])
     plan = models.ForeignKey(Plan, verbose_name=_('plan'), on_delete=models.PROTECT)
     amount = models.DecimalField(_('amount'), max_digits=10, decimal_places=2)
     method = models.CharField(_('method'), max_length=255, choices=[(method.slug, method.name) for method in methods])

-    is_active = models.BooleanField(_('active'), default=False)

     is_cancelled = models.BooleanField(_('cancelled'), default=False)
     is_cancelled = models.BooleanField(_('cancelled'), default=False)

+    payed_at = models.DateTimeField(_('payed at'), null=True, blank=True)

     started_at = models.DateTimeField(_('started at'), auto_now_add=True)
     expires_at = models.DateTimeField(_('expires_at'), null=True, blank=True)
     started_at = models.DateTimeField(_('started at'), auto_now_add=True)
     expires_at = models.DateTimeField(_('expires_at'), null=True, blank=True)

-    # extra info?
+    email_sent = models.BooleanField(default=False)

 
     class Meta:
         verbose_name = _('schedule')
 
     class Meta:
         verbose_name = _('schedule')


@@ -82,48 +87,65 @@ class Schedule(models.Model):
             self.key = get_random_hash(self.email)
         return super(Schedule, self).save(*args, **kwargs)
 
             self.key = get_random_hash(self.email)
         return super(Schedule, self).save(*args, **kwargs)
 

+    def initiate_payment(self, request):
+        return self.get_payment_method().initiate(request, self)
+
+    def pay(self, request):
+        return self.get_payment_method().pay(request, self)
+

     def get_absolute_url(self):
         return reverse('club_schedule', args=[self.key])
 
     def get_absolute_url(self):
         return reverse('club_schedule', args=[self.key])
 

+    def get_thanks_url(self):
+        return reverse('club_thanks', args=[self.key])
+

     def get_payment_method(self):
         return method_by_slug[self.method]
 
     def get_payment_method(self):
         return method_by_slug[self.method]
 

-

     def is_expired(self):
     def is_expired(self):

-        return self.expires_at is not None and self.expires_at < now()
-
-    def create_payment(self):
-        n = now()
-        self.expires_at = self.plan.get_next_installment(n)
-        self.is_active = True
+        return self.expires_at is not None and self.expires_at <= now()
+
+    def is_active(self):
+        return self.payed_at is not None and (self.expires_at is None or self.expires_at > now())
+
+    def send_email(self):
+        ctx = {'schedule': self}
+        send_mail(
+            template.loader.render_to_string('club/email/thanks_subject.txt', ctx).strip(),
+            template.loader.render_to_string('club/email/thanks.txt', ctx),
+            settings.CONTACT_EMAIL, [self.email], fail_silently=False)
+        self.email_sent = True

         self.save()
         self.save()

-        self.payment_set.create(payed_at=n)
-
-
-class Payment(models.Model):
-    schedule = models.ForeignKey(Schedule, verbose_name=_('schedule'), on_delete=models.PROTECT)
-    created_at = models.DateTimeField(_('created at'), auto_now_add=True)
-    payed_at = models.DateTimeField(_('payed at'), null=True, blank=True)
-
-    class Meta:
-        verbose_name = _('payment')
-        verbose_name_plural = _('payments')
-
-    def __str__(self):
-        return "%s %s" % (self.schedule, self.payed_at)

 
 
 class Membership(models.Model):
     """ Represents a user being recognized as a member of the club. """
     user = models.OneToOneField(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
     created_at = models.DateTimeField(_('created at'), auto_now_add=True)
 
 
 class Membership(models.Model):
     """ Represents a user being recognized as a member of the club. """
     user = models.OneToOneField(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
     created_at = models.DateTimeField(_('created at'), auto_now_add=True)

+    name = models.CharField(max_length=255, blank=True)
+    honorary = models.BooleanField(default=False)

 
     class Meta:
         verbose_name = _('membership')
         verbose_name_plural = _('memberships')
 
     def __str__(self):
 
     class Meta:
         verbose_name = _('membership')
         verbose_name_plural = _('memberships')
 
     def __str__(self):

-        return u'tow. ' + str(self.user)
+        return str(self.user)
+
+    @classmethod
+    def is_active_for(cls, user):
+        if user.is_anonymous:
+            return False
+        try:
+            membership = user.membership
+        except cls.DoesNotExist:
+            return False
+        if membership.honorary:
+            return True
+        return Schedule.objects.filter(
+                expires_at__gt=now(),
+                membership__user=user,
+            ).exists()

 
 
 class ReminderEmail(models.Model):
 
 
 class ReminderEmail(models.Model):


@@ -142,3 +164,64 @@ class ReminderEmail(models.Model):
         else:
             return ungettext('a day after expiration', '%d days after expiration', n=-self.days_before)
 
         else:
             return ungettext('a day after expiration', '%d days after expiration', n=-self.days_before)
 

+
+########
+#      #
+# PayU #
+#      #
+########
+
+class PayUOrder(payu_models.Order):
+    schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
+
+    def get_amount(self):
+        return self.schedule.amount
+
+    def get_buyer(self):
+        return {
+            "email": self.schedule.email,
+            "language": get_language(),
+        }
+
+    def get_continue_url(self):
+        return "https://{}{}".format(
+            Site.objects.get_current().domain,
+            self.schedule.get_thanks_url())
+
+    def get_description(self):
+        return ugettext('Towarzystwo Wolnych Lektur')
+
+    def is_recurring(self):
+        return self.schedule.get_payment_method().is_recurring
+
+    def get_card_token(self):
+        return self.schedule.payucardtoken_set.order_by('-created_at').first()
+
+    def get_notify_url(self):
+        return "https://{}{}".format(
+            Site.objects.get_current().domain,
+            reverse('club_payu_notify', args=[self.pk]))
+
+    def status_updated(self):
+        if self.status == 'COMPLETED':
+            since = self.schedule.expires_at
+            n = now()
+            if since is None or since < n:
+                since = n
+            new_exp = self.schedule.plan.get_next_installment(since)
+            if self.schedule.payed_at is None:
+                self.schedule.payed_at = n
+            if self.schedule.expires_at is None or self.schedule.expires_at < new_exp:
+                self.schedule.expires_at = new_exp
+                self.schedule.save()
+
+            if not self.schedule.email_sent:
+                self.schedule.send_email()
+
+
+class PayUCardToken(payu_models.CardToken):
+    schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
+
+
+class PayUNotification(payu_models.Notification):
+    order = models.ForeignKey(PayUOrder, models.CASCADE, related_name='notification_set')