Merge pull request #191 from rambo/velkoja

Add "velkoja" app for automatically sending notifications of overdue payments

Author: rambo

Dockerfile

@@ -48,7 +48,7 @@ ENV LANGUAGE en_US:en
 # Install python requirements
 RUN virtualenv -p `which python3.4` ../asylum-venv
 COPY project/requirements /opt/asylum/requirements/
-RUN . ../asylum-venv/bin/activate && pip install -r requirements/local.txt
+RUN . ../asylum-venv/bin/activate && pip install packaging appdirs && pip install -r requirements/local.txt && chown -R asylum:asylum ../asylum-venv
 
 # Configure application
 USER root

docker/dev.sh

@@ -4,7 +4,7 @@ SCRIPTDIR=$(python -c 'import os,sys;print os.path.dirname(os.path.realpath(sys.
 # Make sure we're in the correct place relative to Dockerfile no matter where we were called from
 cd `dirname "$SCRIPTDIR"`
 
-if [ "$( docker images asylum_dev:latest )" == "" ]
+if [ "$( docker images -q asylum_dev:latest )" == "" ]
 then
     docker build -t asylum_dev .
 fi
@@ -15,7 +15,7 @@ if [ "$(docker ps -a -q -f name=asylum_dev)" == "" ]
 then
   echo "First run"
 	set -x
-	docker run --name asylum_dev -i -p 8000:8000 -p 1080:1080 -v `pwd -P`/project:/opt/asylum asylum_dev
+	docker run --name asylum_dev -it -p 8000:8000 -p 1080:1080 -v `pwd -P`/project:/opt/asylum asylum_dev
   set +x
 else
   set -x

project/config/settings/common.py

@@ -52,6 +52,7 @@
     'rest_framework',
     'rest_framework.authtoken',
     'django_markdown',
+    'django_jinja',
 )
 
 # Apps specific for this project go here.
@@ -63,6 +64,7 @@
     'creditor',
     'ndaparser',
     'holviapp',
+    'velkoja',
 )
 
 # See: https://docs.djangoproject.com/en/dev/ref/settings/#installed-apps
@@ -266,6 +268,8 @@
 RECURRINGTRANSACTIONS_CALLBACKS_HANDLER = env('RECURRINGTRANSACTIONS_CALLBACKS_HANDLER', default=None)
 HOLVI_POOL = env('HOLVI_POOL', default=None)
 HOLVI_APIKEY = env('HOLVI_APIKEY', default=None)
+HOLVI_BARCODE_IBAN = env('HOLVI_BARCODE_IBAN', default=None)
+HOLVI_NOTIFICATION_INTERVAL_DAYS = env('HOLVI_NOTIFICATION_INTERVAL_DAYS', default=7)
 
 REST_FRAMEWORK = {
     'DEFAULT_AUTHENTICATION_CLASSES': [

project/config/urls.py

@@ -36,6 +36,7 @@
 
     # Your stuff: custom urls includes go here
     url(r'^members/', include('members.urls')),
+    url(r'^velkoja/', include('velkoja.urls')),
 
     url(r'^api/', include(router.urls)),
     url(r'^api-auth/get-token/', authtoken_views.obtain_auth_token),

project/config/wsgi.py

@@ -27,7 +27,6 @@
     environ.Env.read_env(str(ROOT_DIR + '.env'))
 
 
-
 if env.bool('USE_SENTRY', False):
     from raven.contrib.django.raven_compat.middleware.wsgi import Sentry
 

project/package.json

@@ -6,7 +6,7 @@
         "watch": "npm i && bower install && gulp watch",
         "build": "npm i && bower install && gulp",
         "build_noninteractive": "npm i && bower --config.interactive=false install && gulp",
-        "fix": "PREFIX=\"# -*- coding: utf-8 -*-\"; find . -name '._*' | xargs rm ; for f in $(find . -name '*.py' -and -not -path '*/venv/*'); do echo \"=================\" ; echo $f; autopep8 -ri --max-line-length=10000 $f; flake8 $f; isort -rc $f; grep -qFe \"$PREFIX\" $f || echo \"$PREFIX\n$(cat $f)\" > $f ; done "
+        "fix": "PREFIX=\"# -*- coding: utf-8 -*-\"; find . -name '._*' | xargs rm ; for f in $(find . -name '*.py' -and -not -path '*/migrations/*' -and -not -path '*/venv/*'); do echo \"=================\" ; echo $f; autopep8 -ri --max-line-length=10000 $f; flake8 $f; isort -rc $f; grep -qFe \"$PREFIX\" $f || echo \"$PREFIX\n$(cat $f)\" > $f ; done "
     },
     "repository": {
         "type": "git",

project/requirements/base.txt

@@ -39,5 +39,5 @@ django-filter==0.11.0
 djangorestframework-filters==0.6.0
 django-markdown==0.8.4
 django-settings-export==1.0.6
-holviapi==0.1.20160123
+holviapi==0.2.20170129
 python-dateutil==2.4.2

project/velkoja/__init__.py

@@ -0,0 +1 @@
+# -*- coding: utf-8 -*-

project/velkoja/admin.py

@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+from django.contrib import admin
+
+# Register your models here.

project/velkoja/holvichecker.py

@@ -0,0 +1,63 @@
+# -*- coding: utf-8 -*-
+import logging
+from decimal import Decimal
+
+from django.conf import settings
+from django.core.mail import EmailMessage
+from django.template import Context
+from django.template.loader import get_template
+from django.utils import timezone
+from holviapi.utils import barcode as bank_barcode
+from holviapp.utils import list_invoices
+
+from .models import NotificationSent
+
+logger = logger.getLogger()
+
+
+class HolviOverdueInvoicesHandler(object):
+    def process_overdue(self, send=False):
+        barcode_iban = settings.HOLVI_BARCODE_IBAN
+        body_template = get_template('velkoja/notification_email_body.jinja')
+        subject_template = get_template('velkoja/notification_email_subject.jinja')
+        overdue = list_invoices(status='overdue')
+        ret = []
+        for invoice in overdue:
+            # Quick check to make sure the invoice has not been credited
+            if float(invoice._jsondata.get('credited_sum')) > 0:
+                continue
+            # If we have already sent notification recently, do not sent one just yet
+            if NotificationSent.objects.filter(transaction_unique_id=invoice.code).count():
+                notified = NotificationSent.objects.get(transaction_unique_id=invoice.code)
+                if (timezone.now() - notified.stamp).days < settings.HOLVI_NOTIFICATION_INTERVAL_DAYS:
+                    continue
+
+            if send:
+                invoice.send()
+
+            barcode = None
+            if barcode_iban:
+                barcode = bank_barcode(barcode_iban, invoice.rf_reference, Decimal(invoice.due_sum))
+
+            mail = EmailMessage()
+            mail.subject = subject_template.render(Context({"invoice": invoice, "barcode": barcode})).strip()
+            mail.body = body_template.render(Context({"invoice": invoice, "barcode": barcode}))
+            mail.to = [invoice.receiver.email]
+            if send:
+                try:
+                    mail.send()
+                except Exception as e:
+                    logger.exception("Sending email failed")
+
+            try:
+                notified = NotificationSent.objects.get(transaction_unique_id=invoice.code)
+                notified.notification_no += 1
+            except NotificationSent.DoesNotExist:
+                notified = NotificationSent()
+                notified.transaction_unique_id = invoice.code
+            notified.stamp = timezone.now()
+            notified.email = invoice.receiver.email
+            if send:
+                notified.save()
+            ret.append((notified, invoice))
+        return ret