[Incomplete] Zeroconf feature

librespot/zeroconf/Service.py

@@ -0,0 +1,60 @@
+from __future__ import annotations
+from librespot.zeroconf import Packet
+
+
+class Service:
+    __alias: str
+    __service: str
+    __port: int
+    __text: dict
+    __domain: str
+    __protocol: str
+    __host: str
+
+    def __init__(self, alias: str, service: str, port: int):
+        self.__alias = alias
+        for s in alias:
+            c = ord(s)
+            if c < 0x20 or c == 0x7f:
+                raise TypeError()
+
+            self.__service = service
+            self.__port = port
+            self.__protocol = "tcp"
+            self.__text = {}
+
+    def __esc(self, text: str):
+        ns = ""
+        for s in text:
+            c = ord(s)
+            if c == 0x2e or c == 0x5c:
+                ns += "\\"
+            ns += s
+        return ns
+
+    def set_protocol(self, protocol: str) -> Service:
+        if protocol == "tcp" or protocol == "udp":
+            self.__protocol = protocol
+        else:
+            raise TypeError()
+        return self
+
+    def get_domain(self) -> str:
+        return self.__domain
+
+    def set_domain(self, domain: str) -> Service:
+        if domain is None or len(domain) < 2 or domain[0] != ".":
+            raise TypeError(domain)
+        self.__domain = domain
+        return self
+
+    def get_host(self) -> str:
+        return self.__host
+
+    def set_host(self, host: str) -> Service:
+        self.__host = host
+        return self
+
+    def get_packet(self) -> Packet:
+        packet = Packet()
+        return packet