1 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
4 from datetime import datetime, timedelta
5 from django.apps import apps
6 from django.conf import settings
7 from django.contrib.sites.models import Site
8 from django.core.mail import send_mail
9 from django.urls import reverse
10 from django.db import models
11 from django import template
12 from django.utils.timezone import now
13 from django.utils.translation import ugettext_lazy as _, ungettext, ugettext, get_language
14 from catalogue.utils import get_random_hash
15 from messaging.states import Level
16 from .payment_methods import recurring_payment_method, single_payment_method
17 from .payu import models as payu_models
21 class Club(models.Model):
22 min_amount = models.IntegerField(_('minimum amount'))
23 min_for_year = models.IntegerField(_('minimum amount for year'))
24 single_amounts = models.CharField(_('proposed amounts for single payment'), max_length=255)
25 default_single_amount = models.IntegerField(_('default single amount'))
26 monthly_amounts = models.CharField(_('proposed amounts for monthly payments'), max_length=255)
27 default_monthly_amount = models.IntegerField(_('default monthly amount'))
30 verbose_name = _('club')
31 verbose_name_plural = _('clubs')
36 def proposed_single_amounts(self):
37 return [int(x) for x in self.single_amounts.split(',')]
39 def proposed_monthly_amounts(self):
40 return [int(x) for x in self.monthly_amounts.split(',')]
43 class Schedule(models.Model):
44 """ Represents someone taking up a plan. """
45 key = models.CharField(_('key'), max_length=255, unique=True)
46 email = models.EmailField(_('email'))
47 membership = models.ForeignKey('Membership', verbose_name=_('membership'), null=True, blank=True, on_delete=models.PROTECT)
48 amount = models.DecimalField(_('amount'), max_digits=10, decimal_places=2)
49 monthly = models.BooleanField(_('monthly'), default=True)
50 yearly = models.BooleanField(_('yearly'), default=False)
52 is_cancelled = models.BooleanField(_('cancelled'), default=False)
53 payed_at = models.DateTimeField(_('payed at'), null=True, blank=True)
54 started_at = models.DateTimeField(_('started at'), auto_now_add=True)
55 expires_at = models.DateTimeField(_('expires_at'), null=True, blank=True)
56 email_sent = models.BooleanField(default=False)
59 verbose_name = _('schedule')
60 verbose_name_plural = _('schedules')
65 def save(self, *args, **kwargs):
67 self.key = get_random_hash(self.email)
68 super(Schedule, self).save(*args, **kwargs)
71 def initiate_payment(self, request):
72 return self.get_payment_method().initiate(request, self)
74 def pay(self, request):
75 return self.get_payment_method().pay(request, self)
77 def get_absolute_url(self):
78 return reverse('club_schedule', args=[self.key])
80 def get_thanks_url(self):
81 return reverse('club_thanks', args=[self.key])
83 def get_payment_method(self):
84 return recurring_payment_method if self.monthly or self.yearly else single_payment_method
87 return self.expires_at is not None and self.expires_at <= now()
90 return self.payed_at is not None and (self.expires_at is None or self.expires_at > now())
92 def is_recurring(self):
93 return self.monthly or self.yearly
95 def get_next_installment(self, date):
97 return utils.add_year(date)
99 return utils.add_month(date)
100 club = Club.objects.first()
101 if club is not None and self.amount >= club.min_for_year:
102 return utils.add_year(date)
103 return utils.add_month(date)
105 def send_email(self):
106 ctx = {'schedule': self}
108 template.loader.render_to_string('club/email/thanks_subject.txt', ctx).strip(),
109 template.loader.render_to_string('club/email/thanks.txt', ctx),
110 settings.CONTACT_EMAIL, [self.email], fail_silently=False)
111 self.email_sent = True
114 def update_contact(self):
115 Contact = apps.get_model('messaging', 'Contact')
116 if not self.payed_at:
118 since = self.started_at
120 since = self.payed_at
121 if self.is_recurring():
122 level = Level.RECURRING
125 Contact.update(self.email, level, since, self.expires_at)
128 class Membership(models.Model):
129 """ Represents a user being recognized as a member of the club. """
130 user = models.OneToOneField(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
131 created_at = models.DateTimeField(_('created at'), auto_now_add=True)
132 name = models.CharField(max_length=255, blank=True)
133 honorary = models.BooleanField(default=False)
136 verbose_name = _('membership')
137 verbose_name_plural = _('memberships')
140 return str(self.user)
143 def is_active_for(cls, user):
144 if user.is_anonymous:
147 membership = user.membership
148 except cls.DoesNotExist:
150 if membership.honorary:
152 return Schedule.objects.filter(
153 expires_at__gt=now(),
154 membership__user=user,
158 class ReminderEmail(models.Model):
159 days_before = models.SmallIntegerField(_('days before'))
160 subject = models.CharField(_('subject'), max_length=1024)
161 body = models.TextField(_('body'))
164 verbose_name = _('reminder email')
165 verbose_name_plural = _('reminder emails')
166 ordering = ['days_before']
169 if self.days_before >= 0:
170 return ungettext('a day before expiration', '%d days before expiration', n=self.days_before)
172 return ungettext('a day after expiration', '%d days after expiration', n=-self.days_before)
175 class Ambassador(models.Model):
176 name = models.CharField(_('name'), max_length=255)
177 photo = models.ImageField(_('photo'), blank=True)
178 text = models.CharField(_('text'), max_length=1024)
181 verbose_name = _('ambassador')
182 verbose_name_plural = _('ambassadors')
195 class PayUOrder(payu_models.Order):
196 schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
198 def get_amount(self):
199 return self.schedule.amount
203 "email": self.schedule.email,
204 "language": get_language(),
207 def get_continue_url(self):
208 return "https://{}{}".format(
209 Site.objects.get_current().domain,
210 self.schedule.get_thanks_url())
212 def get_description(self):
213 return ugettext('Towarzystwo Wolnych Lektur')
215 def is_recurring(self):
216 return self.schedule.get_payment_method().is_recurring
218 def get_card_token(self):
219 return self.schedule.payucardtoken_set.order_by('-created_at').first()
221 def get_notify_url(self):
222 return "https://{}{}".format(
223 Site.objects.get_current().domain,
224 reverse('club_payu_notify', args=[self.pk]))
226 def status_updated(self):
227 if self.status == 'COMPLETED':
228 since = self.schedule.expires_at
230 if since is None or since < n:
232 new_exp = self.schedule.get_next_installment(since)
233 if self.schedule.payed_at is None:
234 self.schedule.payed_at = n
235 if self.schedule.expires_at is None or self.schedule.expires_at < new_exp:
236 self.schedule.expires_at = new_exp
239 if not self.schedule.email_sent:
240 self.schedule.send_email()
243 class PayUCardToken(payu_models.CardToken):
244 schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
247 class PayUNotification(payu_models.Notification):
248 order = models.ForeignKey(PayUOrder, models.CASCADE, related_name='notification_set')