fixed port input validation

webui.py

@@ -48,14 +48,15 @@ def creator_page():
     ).value
     # Port
     load_dotenv()
-    port_min = os.getenv("PORT_MIN")
-    port_max = os.getenv("PORT_MAX")
+    port_min = int(os.getenv("PORT_MIN", 1024))
+    port_max = int(os.getenv("PORT_MAX", 65535))
     port = ui.input(
         label="Port",
         validation={
-            f"Port must be between {str(port_min)} and {str(port_max)}": lambda value: port_min
-            <= value
-            <= port_max
+            f"Port must be between {str(port_min)} and {str(port_max)}": lambda value: value.isdigit()
+            and port_min <= int(value) <= port_max,
+            "Port in use": lambda value: value.isdigit()
+            and not servermanager.is_port_in_use(int(value)),
         },
     )
     # Era