[Printer] Send information on how to pick up printings.

Sorry, for now it is strongly based on Cr@ns infrastructure, but it won't last, don't worry.

printer/templates/printer/email_printer

@@ -0,0 +1,30 @@
+=== English version below ===
+
+Bonjour {{name}},
+
+Vos impressions ont été envoyées à l'imprimante située {{printer_access_fr}}, et vous pourrez les récupérer d'ici quelques minutes.
+
+{% if digicode %}
+Pour ouvrir la porte du local, veuillez utiliser le code suivant {{code}}. Il est valide jusqu'à {{end_validity}}.
+{% endif %}
+
+En cas de question, n’hésitez pas à nous contacter par mail à {{contact_mail}}.
+
+Cordialement,
+L’équipe de {{asso_name}}
+
+
+=== English version ===
+
+Dear {{name}},
+
+Your files have been successfuly sent to the printer located {{printer_acces_en}}, and you will soon be able to pick them up.
+
+{% if digicode %}
+To open the door of the printer room, please use the following code {{code}}. It is valid until {{end_validity}}.
+{% endif %}
+
+Should you need extra information, you can email us at {{contact_mail}}.
+
+Best regards,
+	{{ asso_name }}'s team

printer/utils.py

@@ -3,6 +3,15 @@ import subprocess
 import os
 import unidecode
 
+from django.template.loader import get_template
+from django.core.mail import EmailMessage
+
+from preferences.models import OptionalPrinter, GeneralOption, AssoOption
+
+from numpy.random import randint
+
+import datetime
+
 def user_printing_path(instance, filename):
     """
     Defines the path where will be uploaded the files
@@ -54,3 +63,47 @@ def pdfbook(file_path):
          '-o', newfile,
         ])
     return newfile
+
+
+def gen_code():
+    code = randint(10**9, 10**10-1)
+    while code % 1437 != 38:
+        code = randint(10**9, 10**10-1)
+    return (str(code) + '#')
+
+
+def send_mail_printer(client):
+    """Sends an email to the client explaning how to get the printings"""
+
+    template = get_template('printer/email_printer')
+    code = gen_code()
+
+
+    printer_access_fr = "au quatrième (4) étage du bâtiment J (code B7806)"
+    printer_access_en = "on fourth (4th) floor of building J (code B7806)"
+    digicode = True
+
+    end_validity = datetime.datetime.now() + datetime.timedelta(3)
+    end_validity = str(end_validity.date())
+
+    ctx = {
+        'name': "{} {}".format(
+            client.name,
+            client.surname
+        ),
+        'printer_access_fr' : printer_access_fr,
+        'printer_access_en' : printer_access_en,
+        'digicode' : digicode,
+        'code' : code,
+        'end_validity' : end_validity,
+        'contact_mail': AssoOption.get_cached_value('contact'),
+        'asso_name': AssoOption.get_cached_value('name')
+    }
+
+    mail = EmailMessage(
+        'Information',
+        template.render(ctx),
+        GeneralOption.get_cached_value('email_from'),
+        [client.get_mail],
+    )
+    mail.send()

printer/views.py

@@ -18,7 +18,7 @@ from users.models import User
 
 from . import settings
 
-from .utils import pdfinfo
+from .utils import pdfinfo, send_mail_printer
 
 from .models import (
     JobWithOptions,
@@ -197,6 +197,7 @@ def payment(request):
     ))
 
 def success(request):
+    send_mail_printer(request.user)
     return form(
         {},
         'printer/success.html',