Cleanup mac address (#249)

linux_voice_assistant/__main__.py

@@ -194,8 +194,10 @@ async def main() -> None:
         host_ip_address = args.host
 
     # Resolve mac
-    mac_address = get_mac_address(interface=network_interface)
-    mac_address_clean = mac_address.replace(":", "")
+    if not (mac_address := get_mac_address(interface=network_interface)):
+        print("No Mac address was found, app stopped.")
+        sys.exit(1)
+    mac_address_clean = mac_address.replace(":", "").lower()
 
     # Resolve name
     if not args.name:
@@ -207,8 +209,8 @@ async def main() -> None:
         print(f"Using friendly name: {args.name}")
         friendly_name = args.name
 
-    mac_no_colon = mac_address.replace(":", "").lower()
-    device_name = f"lva-{mac_no_colon}"
+    device_name = f"lva-{mac_address_clean}"
+
     print(f"Device name: {device_name}")
 
     # Resolve version
@@ -323,7 +325,7 @@ async def main() -> None:
         name=device_name,
         friendly_name=friendly_name,
         network_interface=network_interface,
-        mac_address=get_mac_address(interface=network_interface),
+        mac_address=mac_address,
         ip_address=host_ip_address,
         version=version,
         esphome_version=esphome_version,