Fix ZeroConf

Author: synesthesiam

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.8.0
+
+- Fix ZeroConf
+
 ## 1.7.2
 
 - Fix event data being `None`

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "wyoming"
-version = "1.7.2"
+version = "1.8.0"
 description = "Peer-to-peer protocol for voice assistants"
 readme = "README.md"
 requires-python = ">=3.8"

wyoming/zeroconf.py

@@ -1,7 +1,8 @@
-#!/usr/bin/env python3
 """Runs mDNS zeroconf service for Home Assistant discovery."""
+
 import logging
 import socket
+import uuid
 from typing import Optional
 
 _LOGGER = logging.getLogger(__name__)
@@ -15,21 +16,44 @@
 MDNS_TARGET_IP = "224.0.0.251"
 
 
-async def register_server(name: str, port: int, host: Optional[str] = None) -> None:
-    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)
+class HomeAssistantZeroconf:
+    """ZeroConf (mDNS) discovery for Home Assistant."""
+
+    def __init__(
+        self, port: int, name: Optional[str] = None, host: Optional[str] = None
+    ) -> None:
+        self.port = port
+        self.name = name or _get_mac_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:
+        """Register ZeroConf server."""
+
+        service_info = AsyncServiceInfo(
+            "_wyoming._tcp.local.",
+            f"{self.name}._wyoming._tcp.local.",
+            addresses=[socket.inet_aton(self.host)],
+            port=self.port,
+        )
+        await self._aiozc.async_register_service(service_info)
+        _LOGGER.debug("Zeroconf discovery enabled: %s", service_info)
 
-    assert host
 
-    service_info = AsyncServiceInfo(
-        "_wyoming._tcp.local.",
-        f"{name}._wyoming._tcp.local.",
-        addresses=[socket.inet_aton(host)],
-        port=port,
+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
+        ]
     )
-    aiozc = AsyncZeroconf()
-    await aiozc.async_register_service(service_info)