Merge branch 'fix_141_send_invoice' into 'dev'

Fix 141 send invoice

See merge request federez/re2o!198

cotisations/templates/cotisations/email_invoice

@@ -0,0 +1,22 @@
+=== English version below ===
+
+Bonjour {{name}},
+
+Nous vous remercions pour votre achat auprès de {{asso_name}} et nous vous en joignons la facture.
+
+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}},
+
+Thank you for your purchase. Here is your invoice.
+
+Should you need extra information, you can email us at {{contact_mail}}.
+
+Best regards,
+	{{ asso_name }}'s team

cotisations/tex.py

@@ -61,18 +61,24 @@ def render_invoice(_request, ctx={}):
     return r
 
 
-def render_tex(_request, template, ctx={}):
-    """
-    Creates a PDF from a LaTex templates using pdflatex.
-    Writes it in a temporary directory and send back an HTTP response for
-    accessing this file.
+def create_pdf(template, ctx={}):
+    """Creates and returns a PDF from a LaTeX template using pdflatex.
+
+    It create a temporary file for the PDF then read it to return its content.
+
+    Args:
+        template: Path to the LaTeX template.
+        ctx: Dict with the context for rendering the template.
+
+    Returns:
+        The content of the temporary PDF file generated.
     """
     context = Context(ctx)
     template = get_template(template)
     rendered_tpl = template.render(context).encode('utf-8')
 
     with tempfile.TemporaryDirectory() as tempdir:
-        for i in range(2):
+        for _ in range(2):
             process = Popen(
                 ['pdflatex', '-output-directory', tempdir],
                 stdin=PIPE,
@@ -81,6 +87,25 @@ def render_tex(_request, template, ctx={}):
             process.communicate(rendered_tpl)
         with open(os.path.join(tempdir, 'texput.pdf'), 'rb') as f:
             pdf = f.read()
+
+    return pdf
+
+
+def render_tex(_request, template, ctx={}):
+    """Creates a PDF from a LaTex templates using pdflatex.
+
+    Calls `create_pdf` and send back an HTTP response for
+    accessing this file.
+
+    Args:
+        _request: Unused, but allow using this function as a Django view.
+        template: Path to the LaTeX template.
+        ctx: Dict with the context for rendering the template.
+
+    Returns:
+        An HttpResponse with type `application/pdf` containing the PDF file.
+    """
+    pdf = create_pdf(template, ctx={})
     r = HttpResponse(content_type='application/pdf')
     r.write(pdf)
     return r

cotisations/utils.py

@@ -19,6 +19,16 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
+import os
+
+from django.template.loader import get_template
+from django.core.mail import EmailMessage
+
+from .tex import create_pdf
+from preferences.models import AssoOption, GeneralOption
+from re2o.settings import LOGO_PATH
+from re2o import settings
+
 
 def find_payment_method(payment):
     """Finds the payment method associated to the payment if it exists."""
@@ -30,3 +40,56 @@ def find_payment_method(payment):
         except method.PaymentMethod.DoesNotExist:
             pass
     return None
+
+
+def send_mail_invoice(invoice):
+    """Creates the pdf of the invoice and sends it by email to the client"""
+    purchases_info = []
+    for purchase in invoice.vente_set.all():
+        purchases_info.append({
+            'name': purchase.name,
+            'price': purchase.prix,
+            'quantity': purchase.number,
+            'total_price': purchase.prix_total
+        })
+
+    ctx = {
+        'paid': True,
+        'fid': invoice.id,
+        'DATE': invoice.date,
+        'recipient_name': "{} {}".format(
+            invoice.user.name,
+            invoice.user.surname
+        ),
+        'address': invoice.user.room,
+        'article': purchases_info,
+        'total': invoice.prix_total(),
+        'asso_name': AssoOption.get_cached_value('name'),
+        'line1': AssoOption.get_cached_value('adresse1'),
+        'line2': AssoOption.get_cached_value('adresse2'),
+        'siret': AssoOption.get_cached_value('siret'),
+        'email': AssoOption.get_cached_value('contact'),
+        'phone': AssoOption.get_cached_value('telephone'),
+        'tpl_path': os.path.join(settings.BASE_DIR, LOGO_PATH)
+    }
+
+    pdf = create_pdf('cotisations/factures.tex', ctx)
+    template = get_template('cotisations/email_invoice')
+
+    ctx = {
+        'name': "{} {}".format(
+            invoice.user.name,
+            invoice.user.surname
+        ),
+        'contact_mail': AssoOption.get_cached_value('contact'),
+        'asso_name': AssoOption.get_cached_value('name')
+    }
+
+    mail = EmailMessage(
+        'Votre facture / Your invoice',
+        template.render(ctx),
+        GeneralOption.get_cached_value('email_from'),
+        [invoice.user.email],
+        attachments=[('invoice.pdf', pdf, 'application/pdf')]
+    )
+    mail.send()

cotisations/views.py

@@ -74,7 +74,7 @@ from .forms import (
 )
 from .tex import render_invoice
 from .payment_methods.forms import payment_method_factory
-from .utils import find_payment_method
+from .utils import find_payment_method, send_mail_invoice
 
 
 @login_required
@@ -147,6 +147,8 @@ def new_facture(request, user, userid):
                     p.facture = new_invoice_instance
                     p.save()
 
+                send_mail_invoice(new_invoice_instance)
+
                 return new_invoice_instance.paiement.end_payment(
                     new_invoice_instance,
                     request
@@ -161,6 +163,7 @@ def new_facture(request, user, userid):
         balance = user.solde
     else:
         balance = None
+
     return form(
         {
             'factureform': invoice_form,
@@ -746,6 +749,9 @@ def credit_solde(request, user, **_kwargs):
                 prix=refill_form.cleaned_data['value'],
                 number=1
             )
+
+            send_mail_invoice(invoice)
+
             return invoice.paiement.end_payment(invoice, request)
     p = get_object_or_404(Paiement, is_balance=True)
     return form({