From 353c6a8f121e497eefaab88072fbceab9da893f6 Mon Sep 17 00:00:00 2001
From: Holger Frey <mail@holgerfrey.de>
Date: Sat, 21 Oct 2017 11:49:21 +0200
Subject: [PATCH] added events module

---
 ordr2/events.py | 78 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 ordr2/events.py

diff --git a/ordr2/events.py b/ordr2/events.py
new file mode 100644
index 0000000..1be7429
--- /dev/null
+++ b/ordr2/events.py
@@ -0,0 +1,78 @@
+''' custom events and event subsribers '''
+
+from pyramid.events import subscriber
+from pyramid.renderers import render
+from pyramid_mailer.message import Message
+
+
+# custom events
+
+class UserNotification(object):
+    ''' base class for user notification emails
+
+    :param request:
+        current request object
+    :type request:
+        `pyramid.request.Request`
+    :param account:
+        account to send the notification to
+    :type account:
+        :class:`ordr2.models.account.Users`
+    :param data:
+        additional data to pass to the mail template
+    '''
+
+    #: subject of the notification
+    subject = None
+
+    #: template to render
+    template = None
+
+    def __init__(self, request, account, data=None):
+        self.request = request
+        self.account = account
+        self.data = data
+
+
+class CompleteRegistration(UserNotification):
+    ''' user notification for account activation '''
+    subject='[ordr] Your account was activated'
+    template = 'ordr2:templates/emails/registration.jinja2'
+
+
+class AccountActivation(UserNotification):
+    ''' user notification for account activation '''
+    subject='[ordr] Your account was activated'
+    template = 'ordr2:templates/emails/activation.jinja2'
+
+
+class PasswordReset(UserNotification):
+    ''' user notification for password reset link '''
+    subject='[ordr] Password Reset'
+    template = 'ordr2:templates/emails/password_reset.jinja2'
+
+
+class OrderStatusChange(UserNotification):
+    ''' user notification for order status change '''
+    subject='[ordr] Order Status Change'
+    template = 'ordr2:templates/emails/order.jinja2'
+
+
+# subsribers for events
+
+@subscriber(UserNotification)
+def notify_user(event):
+    ''' notify a user about an event '''
+
+    body = render(
+        event.template,
+        {'user': event.account, 'data': event.data},
+        event.request
+        )
+    message = Message(
+        subject=event.subject,
+        sender=event.request.registry.settings['mail.default_sender'],
+        recipients=[event.account.email],
+        html=body
+        )
+    event.request.mailer.send(message)