Clean up and move code to utils

wyoming_satellite/event_handler.py

@@ -0,0 +1,56 @@
+"""Wyoming event handler for satellites."""
+import argparse
+import logging
+import time
+
+from wyoming.event import Event
+from wyoming.info import Describe, Info
+from wyoming.server import AsyncEventHandler
+
+from .satellite import SatelliteBase
+
+_LOGGER = logging.getLogger()
+
+
+class SatelliteEventHandler(AsyncEventHandler):
+    """Event handler for clients."""
+
+    def __init__(
+        self,
+        wyoming_info: Info,
+        satellite: SatelliteBase,
+        cli_args: argparse.Namespace,
+        *args,
+        **kwargs,
+    ) -> None:
+        super().__init__(*args, **kwargs)
+
+        self.cli_args = cli_args
+        self.wyoming_info_event = wyoming_info.event()
+        self.client_id = str(time.monotonic_ns())
+        self.satellite = satellite
+
+    # -------------------------------------------------------------------------
+
+    async def handle_event(self, event: Event) -> bool:
+        """Handle events from the server."""
+        if Describe.is_type(event.type):
+            await self.write_event(self.wyoming_info_event)
+            return True
+
+        if self.satellite.server_id is None:
+            # Take over after a problem occurred
+            self.satellite.set_server(self.client_id, self.writer)
+        elif self.satellite.server_id != self.client_id:
+            # New connection
+            _LOGGER.debug("Connection cancelled: %s", self.client_id)
+            return False
+
+        await self.satellite.event_from_server(event)
+
+        return True
+
+    async def disconnect(self) -> None:
+        """Server disconnect."""
+        if self.satellite.server_id == self.client_id:
+            self.satellite.clear_server()