hotfix for mac-detection and various variable names (#139)

* Change Client-Name: The client name inside LVA is not capable of having spaces in the name. Fixed the example.
* Add first version of Docker-Compose for developers
* Add variable for network-interface and auto detection by default
* Added autodetection for the MAC-Address based on the detected or specified network-interface.
* Switched from listening on all IP-Addresses to the IP of the default interface, usually u set the correct network-interface and it will automatically detect the right IP-Address.
* Added missing variables, fixed variables names
* Fixed not working variables for example sound-files.
* Moved the auto-name creation from shell to python. The name is no longer mandatory, it will be generated if no name is given.

linux_voice_assistant/zeroconf.py

@@ -18,20 +18,13 @@ MDNS_TARGET_IP = "224.0.0.251"
 
 class HomeAssistantZeroconf:
     def __init__(
-        self, port: int, name: Optional[str] = None, host: Optional[str] = None
+        self, port: int, mac_address: str, host_ip_address: str, name: Optional[str] = None, host: Optional[str] = None
     ) -> None:
         self.port = port
-        self.name = name or _get_mac_address()
+        self.mac_address = mac_address
+        self.name = name or self.mac_address
+        self.host_ip_address = host_ip_address
 
-        if not host:
-            test_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-            test_sock.setblocking(False)
-            test_sock.connect((MDNS_TARGET_IP, 1))
-            host = test_sock.getsockname()[0]
-            _LOGGER.debug("Detected IP: %s", host)
-
-        assert host
-        self.host = host
         self._aiozc = AsyncZeroconf()
 
     async def register_server(self) -> None:
@@ -39,11 +32,11 @@ class HomeAssistantZeroconf:
         service_info = AsyncServiceInfo(
             "_esphomelib._tcp.local.",
             f"{self.name}._esphomelib._tcp.local.",
-            addresses=[socket.inet_aton(self.host)],
+            addresses=[socket.inet_aton(self.host_ip_address)],
             port=self.port,
             properties={
                 "version": "2025.9.0",
-                "mac": _get_mac_address(),
+                "mac": self.mac_address,
                 "board": "host",
                 "platform": "HOST",
                 "network": "ethernet",  # or "wifi"
@@ -53,12 +46,3 @@ class HomeAssistantZeroconf:
         await self._aiozc.async_register_service(service_info)
         _LOGGER.debug("Zeroconf discovery enabled: %s", service_info)
 
-
-def _get_mac_address() -> str:
-    """Return MAC address formatted as hex with no colons."""
-    return "".join(
-        # pylint: disable=consider-using-f-string
-        ["{:02x}".format((uuid.getnode() >> ele) & 0xFF) for ele in range(0, 8 * 6, 8)][
-            ::-1
-        ]
-    )