imonlinux
f1137232e0
This is the major change. All the _is_speaking, _run_finished, etc. flags are gone, replaced by a single self._state variable and a _set_state method. The logic is now much cleaner.
346 lines
14 KiB
Python
346 lines
14 KiB
Python
"""Voice satellite protocol."""
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import logging
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import time
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from collections.abc import Iterable
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from typing import Dict, Optional, Set, Union
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# pylint: disable=no-name-in-module
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from aioesphomeapi.api_pb2 import ( # type: ignore[attr-defined]
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DeviceInfoRequest,
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DeviceInfoResponse,
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ListEntitiesDoneResponse,
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ListEntitiesRequest,
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MediaPlayerCommandRequest,
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SubscribeHomeAssistantStatesRequest,
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VoiceAssistantAnnounceFinished,
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VoiceAssistantAnnounceRequest,
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VoiceAssistantAudio,
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VoiceAssistantConfigurationRequest,
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VoiceAssistantConfigurationResponse,
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VoiceAssistantEventResponse,
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VoiceAssistantRequest,
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VoiceAssistantSetConfiguration,
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VoiceAssistantTimerEventResponse,
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VoiceAssistantWakeWord,
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)
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from aioesphomeapi.model import (
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VoiceAssistantEventType,
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VoiceAssistantFeature,
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VoiceAssistantTimerEventType,
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)
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from google.protobuf import message
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from .api_server import APIServer
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from .entity import MediaPlayerEntity
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from .microwakeword import MicroWakeWord
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from .models import ServerState, SatelliteState
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from .openwakeword import OpenWakeWord
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from .util import call_all
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_LOGGER = logging.getLogger(__name__)
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class VoiceSatelliteProtocol(APIServer):
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def __init__(self, state: ServerState) -> None:
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super().__init__(state.name)
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self.state = state
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self.state.satellite = self
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self.media_player_entity = MediaPlayerEntity(
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server=self,
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state=state,
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key=len(state.entities),
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name="Media Player",
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object_id="linux_voice_assistant_media_player",
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music_player=state.music_player,
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announce_player=state.tts_player,
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)
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self.state.entities.append(self.media_player_entity)
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# State machine
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self._state: SatelliteState = SatelliteState.IDLE
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self._is_streaming_audio: bool = False # Is HA requesting audio?
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# Announce/TTS state
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self._tts_url: Optional[str] = None
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self._continue_conversation: bool = False
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self._timer_finished: bool = False
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# Flags set by events, processed in _determine_final_state
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self._run_end_received: bool = False
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self._tts_end_received: bool = False
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def _set_state(self, new_state: SatelliteState):
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"""Manages state transitions and publishes events."""
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if self._state == new_state:
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return
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_LOGGER.debug(f"State transition: {self._state} -> {new_state}")
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self._state = new_state
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# Publish events for LEDs, etc.
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if new_state == SatelliteState.IDLE:
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self.unduck()
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self.state.stop_word.is_active = False
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self.state.event_bus.publish("voice_idle")
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elif new_state == SatelliteState.LISTENING:
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self.duck()
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self.state.event_bus.publish("voice_listen")
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elif new_state == SatelliteState.THINKING:
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self.state.event_bus.publish("voice_thinking")
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elif new_state == SatelliteState.RESPONDING:
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self.state.stop_word.is_active = True
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self.state.event_bus.publish("voice_responding")
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elif new_state == SatelliteState.ERROR:
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self.state.event_bus.publish("voice_error")
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def handle_voice_event(
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self, event_type: VoiceAssistantEventType, data: Dict[str, str]
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) -> None:
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_LOGGER.debug("Voice event: type=%s, data=%s", event_type.name, data)
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if event_type == VoiceAssistantEventType.VOICE_ASSISTANT_RUN_START:
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self._run_end_received = False
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self._tts_end_received = False
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self._tts_url = data.get("url")
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self._continue_conversation = False
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# DO NOT transition to THINKING here. Stay in LISTENING.
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_STT_START:
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# This confirms we are in the LISTENING state
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self._set_state(SatelliteState.LISTENING)
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_STT_VAD_START:
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self.state.event_bus.publish("voice_vad_start", data)
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_STT_END:
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self._is_streaming_audio = False
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# THIS is when we move to THINKING
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self._set_state(SatelliteState.THINKING)
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_STT_VAD_END:
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# We wait for STT_END before moving to THINKING
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pass
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_INTENT_END:
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if data.get("continue_conversation") == "1":
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self._continue_conversation = True
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_TTS_START:
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self._set_state(SatelliteState.RESPONDING)
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_TTS_END:
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self._tts_url = data.get("url")
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self._tts_end_received = True
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self.play_tts() # Play the final TTS URL
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_RUN_END:
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self._run_end_received = True
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# If TTS is already done, or we're not speaking, we can finalize.
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if self._state != SatelliteState.RESPONDING:
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self._determine_final_state()
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_ERROR:
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self._set_state(SatelliteState.ERROR)
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# Use a timer to reset to idle after error
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self.state.loop.call_later(5.0, self._set_state, SatelliteState.IDLE)
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def handle_timer_event(
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self,
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event_type: VoiceAssistantTimerEventType,
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msg: VoiceAssistantTimerEventResponse,
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) -> None:
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_LOGGER.debug("Timer event: type=%s", event_type.name)
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if event_type == VoiceAssistantTimerEventType.VOICE_ASSISTANT_TIMER_FINISHED:
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if not self._timer_finished:
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self.state.stop_word.is_active = True
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self._timer_finished = True
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self.duck()
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self._play_timer_finished()
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def handle_message(self, msg: message.Message) -> Iterable[message.Message]:
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if isinstance(msg, VoiceAssistantEventResponse):
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data: Dict[str, str] = {}
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for arg in msg.data:
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data[arg.name] = arg.value
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self.handle_voice_event(VoiceAssistantEventType(msg.event_type), data)
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elif isinstance(msg, VoiceAssistantAnnounceRequest):
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_LOGGER.debug("Announcing: %s", msg.text)
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urls = []
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if msg.preannounce_media_id:
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urls.append(msg.preannounce_media_id)
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urls.append(msg.media_id)
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self.state.stop_word.is_active = True
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self._continue_conversation = msg.start_conversation
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self.duck()
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self._set_state(SatelliteState.RESPONDING) # Announce is a response
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yield from self.media_player_entity.play(
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urls, announcement=True, done_callback=self._tts_finished
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)
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elif isinstance(msg, VoiceAssistantTimerEventResponse):
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self.handle_timer_event(VoiceAssistantTimerEventType(msg.event_type), msg)
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elif isinstance(msg, DeviceInfoRequest):
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yield DeviceInfoResponse(
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uses_password=False,
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name=self.state.name,
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mac_address=self.state.mac_address,
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voice_assistant_feature_flags=(
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VoiceAssistantFeature.VOICE_ASSISTANT
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| VoiceAssistantFeature.API_AUDIO
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| VoiceAssistantFeature.ANNOUNCE
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| VoiceAssistantFeature.START_CONVERSATION
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| VoiceAssistantFeature.TIMERS
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),
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)
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elif isinstance(
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msg,
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(
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ListEntitiesRequest,
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SubscribeHomeAssistantStatesRequest,
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MediaPlayerCommandRequest,
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),
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):
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for entity in self.state.entities:
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yield from entity.handle_message(msg)
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if isinstance(msg, ListEntitiesRequest):
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yield ListEntitiesDoneResponse()
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elif isinstance(msg, VoiceAssistantConfigurationRequest):
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yield VoiceAssistantConfigurationResponse(
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available_wake_words=[
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VoiceAssistantWakeWord(
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id=ww.id,
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wake_word=ww.wake_word,
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trained_languages=ww.trained_languages,
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)
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for ww in self.state.available_wake_words.values()
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],
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active_wake_words=[
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ww.id for ww in self.state.wake_words.values() if ww.is_active
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],
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max_active_wake_words=2,
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)
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_LOGGER.info("Connected to Home Assistant")
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self._set_state(SatelliteState.IDLE) # Connected, move to idle
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self.state.event_bus.publish("ha_connected")
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elif isinstance(msg, VoiceAssistantSetConfiguration):
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active_wake_words: Set[str] = set()
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for wake_word_id in msg.active_wake_words:
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if wake_word_id in self.state.wake_words:
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active_wake_words.add(wake_word_id)
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continue
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model_info = self.state.available_wake_words.get(wake_word_id)
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if not model_info:
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continue
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_LOGGER.debug("Loading wake word: %s", model_info.config_path)
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self.state.wake_words[wake_word_id] = model_info.load(
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self.state.libtensorflowlite_c_path
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)
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_LOGGER.info("Wake word set: %s", wake_word_id)
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active_wake_words.add(wake_word_id)
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break
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for wake_word in self.state.wake_words.values():
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wake_word.is_active = wake_word.id in active_wake_words
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_LOGGER.debug("Active wake words: %s", active_wake_words)
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self.state.preferences.active_wake_words = list(active_wake_words)
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self.state.save_preferences()
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self.state.wake_words_changed = True
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def handle_audio(self, audio_chunk: bytes) -> None:
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if not self._is_streaming_audio:
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return
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self.send_messages([VoiceAssistantAudio(data=audio_chunk)])
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def wakeup(self, wake_word: Union[MicroWakeWord, OpenWakeWord]) -> None:
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if self._state != SatelliteState.IDLE:
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return # Already awake
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if self._timer_finished:
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self._timer_finished = False
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self.state.tts_player.stop()
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_LOGGER.debug("Stopping timer finished sound")
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return
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wake_word_phrase = wake_word.wake_word
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_LOGGER.debug("Detected wake word: %s", wake_word_phrase)
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self.send_messages(
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[VoiceAssistantRequest(start=True, wake_word_phrase=wake_word_phrase)]
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)
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self._set_state(SatelliteState.LISTENING)
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self._is_streaming_audio = True
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self.state.tts_player.play(self.state.wakeup_sound)
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def stop(self) -> None:
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self.state.tts_player.stop()
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if self._timer_finished:
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self._timer_finished = False
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_LOGGER.debug("Stopping timer finished sound")
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else:
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_LOGGER.debug("TTS response stopped manually")
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self._tts_finished() # Manually trigger TTS finished logic
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def play_tts(self) -> None:
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if not self._tts_url:
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return
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_LOGGER.debug("Playing TTS response: %s", self._tts_url)
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self._set_state(SatelliteState.RESPONDING)
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self.state.tts_player.play(self._tts_url, done_callback=self._tts_finished)
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self._tts_url = None # Clear after starting playback
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def duck(self) -> None:
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_LOGGER.debug("Ducking music")
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self.state.music_player.duck()
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def unduck(self) -> None:
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_LOGGER.debug("Unducking music")
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self.state.music_player.unduck()
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def _determine_final_state(self) -> None:
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"""Called when both TTS and the pipeline run are finished."""
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if self._continue_conversation:
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self.send_messages([VoiceAssistantRequest(start=True)])
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self._is_streaming_audio = True
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_LOGGER.debug("Continuing conversation")
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self._set_state(SatelliteState.LISTENING)
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else:
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self._set_state(SatelliteState.IDLE)
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_LOGGER.debug("Final state determined")
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def _tts_finished(self) -> None:
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"""Callback when TTS audio finishes playing."""
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self.send_messages([VoiceAssistantAnnounceFinished()])
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_LOGGER.debug("TTS audio playback finished")
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# If the run already ended, we can move to the final state.
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# Otherwise, we wait for the RUN_END event.
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if self._run_end_received:
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self._determine_final_state()
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else:
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# We've finished speaking but the pipeline is still running
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# (e.g., waiting for 'continue_conversation')
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# Move to THINKING state
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if self._state == SatelliteState.RESPONDING:
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self._set_state(SatelliteState.THINKING)
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def _play_timer_finished(self) -> None:
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if not self._timer_finished:
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self.unduck()
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return
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self.state.tts_player.play(
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self.state.timer_finished_sound,
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done_callback=lambda: call_all(
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lambda: time.sleep(1.0), self._play_timer_finished
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),
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)
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def connection_lost(self, exc):
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super().connection_lost(exc)
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self._set_state(SatelliteState.ERROR)
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_LOGGER.info("Disconnected from Home Assistant")
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