fix check making sure that paper meal voucher amount is not bigger than…

fix check making sure that paper meal voucher amount is not bigger than remaining due ; cleaning : set default amount to zero for paper meal voucher paiement line created before barcode popup is validated

lacagette_addons/pos_meal_voucher/static/src/js/screens.js

@@ -33,7 +33,9 @@ odoo.define("pos_meal_voucher.screens", function (require) {
                 let order_due = order.get_due();  
 
                 // Display info popup if amount is too high
-                if (total_received > order_due) {
+                // bug fix below : as order_due deduces previous paiement lines from initial due,
+                // it must be compared to amount of current line only and not to total_received
+                if (/*total_received*/amount > order_due) {
                     this.gui.show_popup("alert", {
                         'title': _t("Impossible d'utiliser ce Titre Restaurant"),
                         'body':  _t("Vous ne pouvez pas ajouter ce ticket restaurant car le montant total est supérieur au montant restant dû de la commande")
@@ -406,6 +408,12 @@ odoo.define("pos_meal_voucher.screens", function (require) {
             // If user choose paper meal voucher
             // Open a popup asking for the number of the meal voucher
             if(order.selected_paymentline.is_meal_voucher() && order.selected_paymentline.is_paper_meal_voucher()){
+                // Maybe not needed but cleaner : Set selected payment line amount to 0 before any further check
+                order.selected_paymentline.set_amount(0);
+                paymentScreen.order_changes();
+                paymentScreen.render_paymentlines();
+                paymentScreen.$(".paymentline.selected .edit").text(paymentScreen.format_currency_no_symbol(0));
+
                 this.gui.show_popup("textinput", {
                     'title': _t("Chèque Restaurant"),
                     'body':  _t("Pour ajouter un chèque restaurant, merci de scanner le code barre du chèque. Si le chèque est illisible, veuillez rentrer le code à la main."),