[ADD] point_of_sale: Connect an Worldline Payment Terminal to your PoS

Documentation to explain how to configure a Worldline Payment terminal.

closes odoo/documentation#1464

Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>
Co-authored-by: perazzo loredana <lrpz@odoo.com>
Co-authored-by: lejeune quentin <qle@odoo.com>

content/applications/sales/point_of_sale/payment.rst

@@ -9,4 +9,5 @@ Payment Terminals
 
    payment/ingenico
    payment/vantiv
-   payment/six
+   payment/six
+   payment/worldline

content/applications/sales/point_of_sale/payment/worldline.rst

@@ -0,0 +1,106 @@
+===============================================
+Connect a Worldline Payment Terminal to the PoS
+===============================================
+
+Connecting a payment terminal allows you to offer a fluid payment flow to your customers and ease
+the work of your cashiers.
+
+.. note::
+   Please note that Worldline is currently only available in Belgium.
+
+Configuration
+=============
+
+Connect an IoT Box
+------------------
+
+Connecting a Worldline Payment Terminal to Odoo is a feature that requires an IoT Box. For more
+information on how to connect one to your database, please refer to the
+:doc:`IoT documentation </applications/productivity/iot/config/connect>`.
+
+Configure the protocol
+----------------------
+
+From your terminal, click on :menuselection:`"." --> 3 --> stop --> 3 --> 0 --> 9`. Enter the
+technician password **"1235789"** and click on :menuselection:`OK --> 4 --> 2`. Then, click on
+:menuselection:`Change --> CTEP (as Protocole ECR) --> OK`. Click on **OK** thrice on the subsequent
+screens (*CTEP ticket ECR*, *ECR ticket width*, and *Character set*). Finally, press **Stop** three
+times; the terminal automatically restarts.
+
+.. seealso::
+   Here are some useful :ref:`tips <worldline/yomani-info>`.
+
+Set the IP address
+------------------
+
+From your terminal, click on :menuselection:`"." --> 3 --> stop --> 3 --> 0 --> 9`. Enter the
+technician password **"1235789"** and click on :menuselection:`OK --> 4 --> 9`. Then, click on
+:menuselection:`Change --> TCP/IP` (*TCP physical configuration* screen) :menuselection:`--> OK -->
+OK` (*TCP Configuration client* screen).
+
+Finally, set up the hostname and port number.
+
+Hostname
+~~~~~~~~
+
+| To set up the hostname, enter your IoT box's IP address' sequence numbers and press **OK** at each
+  "." until you reach the colon symbol.
+| Then, press **OK** twice.
+
+.. example::
+   | Here's an IP address sequence: `10.30.19.4:8069`.
+   | On the *Hostname screen*, type :menuselection:`10 --> OK --> 30 --> OK --> 19 --> OK --> 4
+     --> OK --> OK`.
+
+.. note::
+   Your IoT box's IP address is available in your IoT Box application's database.
+
+Port number
+~~~~~~~~~~~
+
+On the *Port number* screen, enter **"9001"** and click on :menuselection:`OK` (*ECR protocol SSL
+no*) :menuselection:`--> OK`. Click on **Stop** three times; the terminal automatically restarts.
+
+Configure the payment method
+----------------------------
+
+From the Point of Sale application, go to :menuselection:`Configuration --> Settings --> Payment
+terminals` and activate the *Worldline* payment terminal.
+
+.. image:: worldline/worldline-payment-terminals.png
+   :align: center
+
+Then, go to :menuselection:`Configuration --> Payment methods` and create a new payment method for
+*Worldline*. Select the payment terminal *Worldline* and your payment terminal device on your
+*Payment Method form*.
+
+.. _worldline/yomani-info:
+
+.. tip::
+   - Technician password: `1235789`
+   - To reach Wordline's technical assistance, call `02 727 61 11` and choose "merchant". Your call
+     is automatically transferred to the desired service.
+   - Configure the cashier terminal if you have both a customer and a cashier terminal.
+   - To avoid blocking the terminal, check the initial configuration beforehand.
+   - Set a fixed IP to your IoT Box’s router to prevent losing the connexion.
+
+Pay with a payment terminal
+===========================
+
+When processing a payment, select *Worldline* as payment method. Check the amount and click on
+*Send*. Once the payment is successful, the status changes to *Payment Successful*.
+
+Once your payment is processed, the type of card used and the transaction ID appear on the payment
+record.
+
+.. image:: worldline/worldline-payment.png
+   :align: center
+
+.. note::
+   * In case of connexion issues between Odoo and the payment terminal, force the payment by
+     clicking on *Force Done*, which allows you to validate the order.
+     This option is only available after receiving an error message informing you that the
+     connection failed.
+   * To cancel the payment request, click on **cancel**.
+
+