Fixed label print copies and added sleep after print

container/views.py

@@ -1,3 +1,5 @@
+import time
+
 from django.views import generic
 from .models import Container, ContainerType
 import logging, json, re
@@ -152,8 +154,12 @@ class ContainerPrintLabelView(LoginRequiredMixin, generic.DetailView):
                 be_class = backend_factory(selected_backend)['backend_class']
                 be = be_class(config['PRINTER']['PRINTER'])
                 context['logs'].append('Got backend driver')
-                for i in range(1, num_copies):
+                context['logs'].append(f'Start printing {num_copies} labels')
+                for i in range(0, num_copies):
+                    context['logs'].append(f'printing #{i}')
                     be.write(qlr.data)
+                    if 'WAIT_AFTER_PRINT_s' in config['LABEL']:
+                        time.sleep(config['LABEL']['WAIT_AFTER_PRINT_s'])
 
                 context['logs'].append('Data sent to printer')
                 be.dispose()