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
7 from django.apps import apps
8 from django.conf import settings
9 from django.contrib.sites.models import Site
10 from django.core.mail import send_mail, EmailMessage
11 from django.urls import reverse
12 from django.db import models
13 from django import template
14 from django.utils.timezone import now
15 from django.utils.translation import ugettext_lazy as _, ungettext, ugettext, get_language
16 from catalogue.utils import get_random_hash
17 from messaging.states import Level
18 from reporting.utils import render_to_pdf
19 from .payment_methods import recurring_payment_method, single_payment_method
20 from .payu import models as payu_models
24 class Club(models.Model):
25 min_amount = models.IntegerField(_('minimum amount'))
26 min_for_year = models.IntegerField(_('minimum amount for year'))
27 single_amounts = models.CharField(_('proposed amounts for single payment'), max_length=255)
28 default_single_amount = models.IntegerField(_('default single amount'))
29 monthly_amounts = models.CharField(_('proposed amounts for monthly payments'), max_length=255)
30 default_monthly_amount = models.IntegerField(_('default monthly amount'))
33 verbose_name = _('club')
34 verbose_name_plural = _('clubs')
39 def proposed_single_amounts(self):
40 return [int(x) for x in self.single_amounts.split(',')]
42 def proposed_monthly_amounts(self):
43 return [int(x) for x in self.monthly_amounts.split(',')]
46 class Schedule(models.Model):
47 """ Represents someone taking up a plan. """
48 key = models.CharField(_('key'), max_length=255, unique=True)
49 email = models.EmailField(_('email'))
50 membership = models.ForeignKey('Membership', verbose_name=_('membership'), null=True, blank=True, on_delete=models.PROTECT)
51 amount = models.DecimalField(_('amount'), max_digits=10, decimal_places=2)
52 monthly = models.BooleanField(_('monthly'), default=True)
53 yearly = models.BooleanField(_('yearly'), default=False)
55 is_cancelled = models.BooleanField(_('cancelled'), default=False)
56 payed_at = models.DateTimeField(_('payed at'), null=True, blank=True)
57 started_at = models.DateTimeField(_('started at'), auto_now_add=True)
58 expires_at = models.DateTimeField(_('expires_at'), null=True, blank=True)
59 email_sent = models.BooleanField(default=False)
62 verbose_name = _('schedule')
63 verbose_name_plural = _('schedules')
68 def save(self, *args, **kwargs):
70 self.key = get_random_hash(self.email)
71 super(Schedule, self).save(*args, **kwargs)
74 def initiate_payment(self, request):
75 return self.get_payment_method().initiate(request, self)
77 def pay(self, request):
78 return self.get_payment_method().pay(request, self)
80 def get_absolute_url(self):
81 return reverse('club_schedule', args=[self.key])
83 def get_thanks_url(self):
84 return reverse('club_thanks', args=[self.key])
86 def get_payment_method(self):
87 return recurring_payment_method if self.monthly or self.yearly else single_payment_method
90 return self.expires_at is not None and self.expires_at <= now()
93 return self.payed_at is not None and (self.expires_at is None or self.expires_at > now())
95 def is_recurring(self):
96 return self.monthly or self.yearly
98 def get_next_installment(self, date):
100 return utils.add_year(date)
102 return utils.add_month(date)
103 club = Club.objects.first()
104 if club is not None and self.amount >= club.min_for_year:
105 return utils.add_year(date)
106 return utils.add_month(date)
108 def send_email(self):
109 ctx = {'schedule': self}
111 template.loader.render_to_string('club/email/thanks_subject.txt', ctx).strip(),
112 template.loader.render_to_string('club/email/thanks.txt', ctx),
113 settings.CONTACT_EMAIL, [self.email], fail_silently=False)
114 self.email_sent = True
117 def update_contact(self):
118 Contact = apps.get_model('messaging', 'Contact')
119 if not self.payed_at:
121 since = self.started_at
123 since = self.payed_at
124 if self.is_recurring():
125 level = Level.RECURRING
128 Contact.update(self.email, level, since, self.expires_at)
131 class Membership(models.Model):
132 """ Represents a user being recognized as a member of the club. """
133 user = models.OneToOneField(settings.AUTH_USER_MODEL, verbose_name=_('user'), on_delete=models.CASCADE)
134 created_at = models.DateTimeField(_('created at'), auto_now_add=True)
135 name = models.CharField(_('name'), max_length=255, blank=True)
136 manual = models.BooleanField(_('manual'), default=False)
137 notes = models.CharField(_('notes'), max_length=2048, blank=True)
138 updated_at = models.DateField(_('updated at'), auto_now=True, blank=True)
141 verbose_name = _('membership')
142 verbose_name_plural = _('memberships')
145 return str(self.user)
147 def save(self, *args, **kwargs):
148 super().save(*args, **kwargs)
149 self.update_contact()
151 def update_contact(self):
152 email = self.user.email
156 Contact = apps.get_model('messaging', 'Contact')
158 Contact.update(email, Level.MANUAL_MEMBER, self.updated_at)
163 def is_active_for(cls, user):
164 if user.is_anonymous:
167 membership = user.membership
168 except cls.DoesNotExist:
170 if membership.manual:
172 return Schedule.objects.filter(
173 expires_at__gt=now(),
174 membership__user=user,
178 class ReminderEmail(models.Model):
179 days_before = models.SmallIntegerField(_('days before'))
180 subject = models.CharField(_('subject'), max_length=1024)
181 body = models.TextField(_('body'))
184 verbose_name = _('reminder email')
185 verbose_name_plural = _('reminder emails')
186 ordering = ['days_before']
189 if self.days_before >= 0:
190 return ungettext('a day before expiration', '%d days before expiration', n=self.days_before)
192 return ungettext('a day after expiration', '%d days after expiration', n=-self.days_before)
195 class Ambassador(models.Model):
196 name = models.CharField(_('name'), max_length=255)
197 photo = models.ImageField(_('photo'), blank=True)
198 text = models.CharField(_('text'), max_length=1024)
201 verbose_name = _('ambassador')
202 verbose_name_plural = _('ambassadors')
215 class PayUOrder(payu_models.Order):
216 schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
218 def get_amount(self):
219 return self.schedule.amount
223 "email": self.schedule.email,
224 "language": get_language(),
227 def get_continue_url(self):
228 return "https://{}{}".format(
229 Site.objects.get_current().domain,
230 self.schedule.get_thanks_url())
232 def get_description(self):
233 return ugettext('Towarzystwo Przyjaciół Wolnych Lektur')
235 def is_recurring(self):
236 return self.schedule.get_payment_method().is_recurring
238 def get_card_token(self):
239 return self.schedule.payucardtoken_set.order_by('-created_at').first()
241 def get_notify_url(self):
242 return "https://{}{}".format(
243 Site.objects.get_current().domain,
244 reverse('club_payu_notify', args=[self.pk]))
246 def status_updated(self):
247 if self.status == 'COMPLETED':
248 since = self.schedule.expires_at
250 if since is None or since < n:
252 new_exp = self.schedule.get_next_installment(since)
253 if self.schedule.payed_at is None:
254 self.schedule.payed_at = n
255 if self.schedule.expires_at is None or self.schedule.expires_at < new_exp:
256 self.schedule.expires_at = new_exp
259 if not self.schedule.email_sent:
260 self.schedule.send_email()
263 def send_receipt(cls, email, year):
264 qs = cls.objects.filter(status='COMPLETED', schedule__email=email, completed_at__year=year).order_by('completed_at')
265 if not qs.exists(): return
269 "next_year": year + 1,
270 "total": qs.aggregate(s=models.Sum('schedule__amount'))['s'],
273 temp = tempfile.NamedTemporaryFile(prefix='receipt-', suffix='.pdf', delete=False)
275 render_to_pdf(temp.name, 'club/receipt.texml', ctx, {
276 "fnp.eps": os.path.join(settings.STATIC_ROOT, "img/fnp.eps"),
279 message = EmailMessage(
280 f'Odlicz od podatku swoje darowizny przekazane dla Wolnych Lektur',
281 template.loader.render_to_string('club/receipt_email.txt', ctx),
282 settings.CONTACT_EMAIL, [email]
284 with open(temp.name, 'rb') as f:
285 message.attach('wolnelektury-darowizny.pdf', f.read(), 'application/pdf')
290 class PayUCardToken(payu_models.CardToken):
291 schedule = models.ForeignKey(Schedule, on_delete=models.CASCADE)
294 class PayUNotification(payu_models.Notification):
295 order = models.ForeignKey(PayUOrder, models.CASCADE, related_name='notification_set')