remove button 'generate refund' for invoices within closed periods

app/assets/javascripts/controllers/admin/invoices.js.erb

@@ -405,6 +405,20 @@ Application.Controllers.controller('InvoicesController', ['$scope', '$state', 'I
       });
     }
 
+    /**
+     * Test if the given date is within a closed accounting period
+     * @param date {Date} date to test
+     * @returns {boolean} true if closed, false otherwise
+     */
+    $scope.isDateClosed = function(date) {
+      for (const period of closedPeriods) {
+        if (moment(date).isBetween(moment.utc(period.start_at).startOf('day'), moment.utc(period.end_at).endOf('day'), null, '[]')) {
+          return true;
+        }
+      }
+      return false;
+    }
+
     /* PRIVATE SCOPE */
 
     /**

app/assets/templates/admin/invoices/index.html.erb

@@ -87,7 +87,7 @@
     		              <a class="btn btn-default" ng-href="api/invoices/{{invoice.id}}/download" target="_blank" ng-if="invoice.is_avoir">
     		                <i class="fa fa-file-pdf-o"></i> {{ 'invoices.download_the_credit_note' | translate }}
     		              </a>
-    		              <a class="btn btn-default" ng-click="generateAvoirForInvoice(invoice)" ng-if="(!invoice.has_avoir || invoice.has_avoir == 'partial') && !invoice.is_avoir && !invoice.prevent_refund">
+    		              <a class="btn btn-default" ng-click="generateAvoirForInvoice(invoice)" ng-if="(!invoice.has_avoir || invoice.has_avoir == 'partial') && !invoice.is_avoir && !invoice.prevent_refund && !isDateClosed(invoice.created_at)">
     		                <i class="fa fa-reply"></i> {{ 'invoices.credit_note' | translate }}
     		              </a>
     		            </div>