Add examples instead of __main__.py

circuitmatter/__init__.py

@@ -12,21 +12,35 @@
 from . import session
 from .device_types.utility.root_node import RootNode
 
-__version__ = "0.0.0"
+__version__ = "0.1.0"
 
 
 class CircuitMatter:
     def __init__(
         self,
-        socketpool,
-        mdns_server,
-        random_source,
-        state_filename,
+        socketpool=None,
+        mdns_server=None,
+        random_source=None,
+        state_filename="matter-device-state.json",
         vendor_id=0xFFF1,
         product_id=0x8000,
     ):
+        if socketpool is None:
+            import socket
+
+            socketpool = socket
         self.socketpool = socketpool
+
+        if mdns_server is None:
+            from circuitmatter.utility.mdns.avahi import Avahi
+
+            mdns_server = Avahi()
         self.mdns_server = mdns_server
+
+        if random_source is None:
+            from circuitmatter.utility import random
+
+            random_source = random
         self.random = random_source
 
         self.nonvolatile = nonvolatile.PersistentDictionary(state_filename)

circuitmatter/utility/mdns/__init__.py

@@ -0,0 +1,11 @@
+class DummyMDNS:
+    def advertise_service(
+        self,
+        service_type,
+        protocol,
+        port,
+        txt_records=[],
+        subtypes=[],
+        instance_name="",
+    ):
+        print(f"Advertise service {service_type} {protocol} {port} {txt_records}")

circuitmatter/utility/mdns/avahi.py

@@ -0,0 +1,41 @@
+import subprocess
+
+
+class Avahi:
+    def __init__(self):
+        self.active_services = {}
+        self.publish_address = None
+
+    def advertise_service(
+        self,
+        service_type,
+        protocol,
+        port,
+        txt_records={},
+        subtypes=[],
+        instance_name="",
+    ):
+        subtypes = [f"--subtype={subtype}" for subtype in subtypes]
+        txt_records = [f"{key}={value}" for key, value in txt_records.items()]
+        command = [
+            "avahi-publish-service",
+            *subtypes,
+            instance_name,
+            f"{service_type}.{protocol}",
+            str(port),
+            *txt_records,
+        ]
+        self.active_services[service_type + instance_name] = subprocess.Popen(command)
+        if self.publish_address is None:
+            command = [
+                "avahi-publish-address",
+                "dalinar.local",
+                "fd98:bbab:bd61:8040:642:1aff:fe0c:9f2a",  # "fe80::642:1aff:fe0c:9f2a",
+            ]
+            self.publish_address = subprocess.Popen(command)
+
+    def __del__(self):
+        for active_service in self.active_services.values():
+            active_service.kill()
+        if self.publish_address is not None:
+            self.publish_address.kill()

circuitmatter/utility/random.py

@@ -0,0 +1,6 @@
+import os
+import secrets
+
+urandom = os.urandom
+
+randbelow = secrets.randbelow