multiuser notification, distingush between devices and users

- now multiple notifications for coming/ going are getting created
- if device count changes no longer user notifications are getting created

hack_count

@@ -79,7 +79,7 @@ if __name__ == '__main__':
                              }
 
         #compare saved and fetched value
-        if  not (cached_data_dict['device_count'] == device_count ) :
+        if args.show_user == True and (cached_data_dict['device_count'] != device_count ) :
             count_changed=True
 
 
@@ -97,11 +97,11 @@ if __name__ == '__main__':
 
         if user_diff_fetched.__len__() > 0 :
             count_changed = True
-            user_new = user_diff_fetched[0]
+            user_new_list = user_diff_fetched
 
         if user_diff_saved.__len__() > 0 :
             count_changed = True
-            user_left = user_diff_saved[0]
+            user_left_list = user_diff_saved
 
         
         ### save to cachefile ####
@@ -115,18 +115,24 @@ if __name__ == '__main__':
                 print ("HackHro Users: ",users.__len__())
             else :
                 print ("HackHro Devcies: ",device_count)
+
             try:
-                user_left 
+                user_left_list 
             except NameError:
                 pass
             else:
-                print ("User left: ",user_left)
+                print(user_left_list) 
+                print ("Users left: ",end="")
+                for user in user_left_list :
+                    print (user['name']+" " ,end="")
             try: 
-                user_new 
+                user_new_list
             except NameError :
                 pass
             else :
-                print ("User New: ",user_new)
+                print ("Users new: ",end="")
+                for user in user_new_list :
+                    print (user['name']+" ",end="")
 
 
         ##notification
@@ -136,32 +142,35 @@ if __name__ == '__main__':
             notif = bus.get_object(item, path)
             notify = dbus.Interface(notif, interface)
             notification_string = ""
-
             if args.show_user == False :
                 title = "HackSpace Users Changed"
                 try:
-                    user_left 
+                    user_left_list
                 except NameError:
                     pass
                 else:
-                    icon = os.path.join(CACHE_PICTURE_FOLDER,str(user_left['id'])+".jpg")
-                    notification_string = "the user "+str(user_left['name'])+" left."
-                    #print ("User left: ",user_left)
+                    for user in user_left_list :
+                        icon = os.path.join(CACHE_PICTURE_FOLDER,str(user['id'])+".jpg")
+                        notification_string = "the user "+str(user['name'])+" left."
+                        #create notification
+                        notify.Notify(app_name, 0, icon, title, notification_string, array, hint, time)
                 try: 
-                    user_new 
+                    user_new_list 
                 except NameError :
                     pass
                 else :
-                    icon = os.path.join(CACHE_PICTURE_FOLDER,str(user_new['id'])+".jpg")
-                    print(icon)
-                    notification_string = "the user "+str(user_new['name'])+" just came in."
+                    for user in user_new_list :
+                        icon = os.path.join(CACHE_PICTURE_FOLDER,str(user['id'])+".jpg")
+                        notification_string = "the user "+str(user['name'])+" just came in."
+                        #create notification
+                        notify.Notify(app_name, 0, icon, title, notification_string, array, hint, time)
             else :
                 title = "HackSpace Devices Changed"
                 notification_string = str(device_count)
+                #create notification
+                notify.Notify(app_name, 0, icon, title, notification_string, array, hint, time)
 
             
-            #create notification
-            notify.Notify(app_name, 0, icon, title, notification_string, array, hint, time)
             count_changed = False
 
         if not args.daemonize == True :