From 7bf9eb478df0a8d5534cc81b976fb234a8eb0138 Mon Sep 17 00:00:00 2001
From: Francois Kawala <francois.kawala@gmail.com>
Date: Wed, 5 Feb 2020 13:47:14 +0100
Subject: [PATCH] Fix XML, refacto, better alert message.

---
 pos_barcode_tare/__openerp__.py               |  3 +-
 pos_barcode_tare/data/barcode_rule.xml        | 12 ++++++++
 .../{views => }/pos_barcode_tare.xml          |  0
 .../static/src/js/pos_barcode_tare.js         | 28 ++++++-------------
 pos_barcode_tare/views/pos_config_view.xml    | 11 +-------
 5 files changed, 24 insertions(+), 30 deletions(-)
 create mode 100644 pos_barcode_tare/data/barcode_rule.xml
 rename pos_barcode_tare/{views => }/pos_barcode_tare.xml (100%)

diff --git a/pos_barcode_tare/__openerp__.py b/pos_barcode_tare/__openerp__.py
index 36841678..578341f4 100644
--- a/pos_barcode_tare/__openerp__.py
+++ b/pos_barcode_tare/__openerp__.py
@@ -12,8 +12,9 @@
     'license': 'AGPL-3',
     'depends': ['point_of_sale'],
     'data': [
+        'pos_barcode_tare.xml',
         'views/pos_config_view.xml',
-        'views/pos_barcode_tare.xml',
+        'data/barcode_rule.xml',
     ],
     'qweb': [
         'static/src/xml/pos_barcode_tare.xml',
diff --git a/pos_barcode_tare/data/barcode_rule.xml b/pos_barcode_tare/data/barcode_rule.xml
new file mode 100644
index 00000000..a8ecb861
--- /dev/null
+++ b/pos_barcode_tare/data/barcode_rule.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+
+<odoo noupdate="1">
+    <record id="barcode_rule_tare" model="barcode.rule">
+        <field name="name">Tare</field>
+        <field name="barcode_nomenclature_id" ref="barcodes.default_barcode_nomenclature"/>
+        <field name="sequence">81</field>
+        <field name="type">tare</field>
+        <field name="encoding">ean13</field>
+        <field name="pattern">0700000{NNDDD}</field>
+    </record>
+</odoo>
diff --git a/pos_barcode_tare/views/pos_barcode_tare.xml b/pos_barcode_tare/pos_barcode_tare.xml
similarity index 100%
rename from pos_barcode_tare/views/pos_barcode_tare.xml
rename to pos_barcode_tare/pos_barcode_tare.xml
diff --git a/pos_barcode_tare/static/src/js/pos_barcode_tare.js b/pos_barcode_tare/static/src/js/pos_barcode_tare.js
index d2b676ed..2424fe87 100644
--- a/pos_barcode_tare/static/src/js/pos_barcode_tare.js
+++ b/pos_barcode_tare/static/src/js/pos_barcode_tare.js
@@ -180,18 +180,6 @@ odoo.define('pos_barcode_tare.screens', function (require) {
             }
             return this.weight_in_kg;
         },
-        ean13_checksum: function (s) {
-            var result = 0;
-            for (var counter = s.length-1; counter >=0; counter--) {
-                var counterCheckSum = counter % 2;
-                counterCheckSum *= 2;
-                counterCheckSum += 1;
-                result += parseInt(s.charAt(counter), 10) * counterCheckSum;
-            }
-            var checksum = 10;
-            checksum -= result % 10;
-            return checksum % 10;
-        },
         barcode_data: function (weight) {
             // We use EAN13 barcode, it looks like 07 00000 12345 x. First there
             // is the prefix, here 07, that is used to decide which type of
@@ -207,13 +195,15 @@ odoo.define('pos_barcode_tare.screens', function (require) {
             var weight_with_padding = '0'.repeat(padding_size) + weight_in_gram;
             var padded_weight = weight_with_padding.substr(
                 weight_with_padding.length - padding_size);
-            // Builds the barcode data (ie. all but the checksum).
-            var barcode_data = this.weight_barcode_prefix
-                .concat(void_product_id, padded_weight);
-            // Compute checksum and concat with barcode data to get the actual
-            // barcode.
-            var checksum = this.ean13_checksum(barcode_data);
-            return barcode_data.concat(checksum);
+            // Builds the barcode using a placeholder checksum.
+            var barcode = this.weight_barcode_prefix
+                .concat(void_product_id, padded_weight)
+                .concat(0);
+            // Compute checksum
+            var barcode_parser = this.pos.barcode_reader.barcode_parser;
+            var checksum = barcode_parser.ean_checksum(barcode);
+            // Replace checksum placeholder by the actual checksum.
+            return barcode.substr(0, 12).concat(checksum);
         },
         get_barcode_data: function () {
             return this.barcode_data(this.get_weight());
diff --git a/pos_barcode_tare/views/pos_config_view.xml b/pos_barcode_tare/views/pos_config_view.xml
index cbfb762b..ffce7377 100644
--- a/pos_barcode_tare/views/pos_config_view.xml
+++ b/pos_barcode_tare/views/pos_config_view.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 
-<odoo noupdate="1">
+<odoo>
     <record model="ir.ui.view" id="view_pos_config_form">
         <field name="model">pos.config</field>
         <field name="inherit_id" ref="point_of_sale.view_pos_config_form" />
@@ -13,13 +13,4 @@
             </xpath>
         </field>
     </record>
-
-    <record id="barcode_rule_tare" model="barcode.rule">
-        <field name="name">Tare</field>
-        <field name="barcode_nomenclature_id" ref="barcodes.default_barcode_nomenclature"/>
-        <field name="sequence">81</field>
-        <field name="type">tare</field>
-        <field name="encoding">ean13</field>
-        <field name="pattern">0700000{NNDDD}</field>
-    </record>
 </odoo>