import asyncio import logging from typing import Any, Callable, Dict, Optional, Tuple import board from .config import LedConfig from .event_bus import EventBus, EventHandler, subscribe from .models import Preferences _LOGGER = logging.getLogger(__name__) # Default Colors _OFF = (0, 0, 0) _BLUE = (0, 0, 255) _YELLOW = (255, 255, 0) _GREEN = (0, 255, 0) _DIM_RED = (50, 0, 0) _ORANGE = (255, 165, 0) _PURPLE = (128, 0, 255) class LedController(EventHandler): def __init__( self, loop: asyncio.AbstractEventLoop, event_bus: EventBus, config: LedConfig, preferences: Preferences, ): super().__init__(event_bus) self.loop = loop self.num_leds = preferences.num_leds # Get num_leds from preferences self.current_task: Optional[asyncio.Task] = None self._is_ready = False self.leds = None self.configs = { "idle": {"effect": "off", "color": _PURPLE, "brightness": 0.5}, "listening": {"effect": "medium_pulse", "color": _BLUE, "brightness": 0.5}, "thinking": {"effect": "spin", "color": _YELLOW, "brightness": 0.8}, "responding": {"effect": "medium_pulse", "color": _GREEN, "brightness": 0.5}, "error": {"effect": "fast_blink", "color": _ORANGE, "brightness": 1.0}, } try: if config.led_type == "neopixel": if config.interface == "spi": import busio import neopixel_spi _LOGGER.debug(f"Initializing {self.num_leds} NeoPixel LEDs on hardware SPI") spi = busio.SPI(board.SCLK, MOSI=board.MOSI) self.leds = neopixel_spi.NeoPixel_SPI(spi, self.num_leds, auto_write=False) else: # GPIO import neopixel _LOGGER.debug(f"Initializing {self.num_leds} NeoPixel LEDs on GPIO data={config.data_pin}") pin_object = getattr(board, f"D{config.data_pin}") self.leds = neopixel.NeoPixel(pin_object, self.num_leds, auto_write=False) else: # dotstar import adafruit_dotstar if config.interface == "gpio": _LOGGER.debug(f"Initializing {self.num_leds} DotStar LEDs on GPIO data={config.data_pin}, clock={config.clock_pin}") data_pin_obj = getattr(board, f"D{config.data_pin}") clock_pin_obj = getattr(board, f"D{config.clock_pin}") self.leds = adafruit_dotstar.DotStar(clock_pin_obj, data_pin_obj, self.num_leds, auto_write=False) else: # SPI _LOGGER.debug(f"Initializing {self.num_leds} DotStar LEDs on hardware SPI") self.leds = adafruit_dotstar.DotStar(board.SCLK, board.MOSI, self.num_leds, auto_write=False) self._is_ready = True _LOGGER.info(f"LED Controller initialized for {self.num_leds} {config.led_type} LEDs.") self.run_action("startup_sequence") except Exception: _LOGGER.exception("Failed to initialize LED controller. LEDs will be disabled.") # Subscribe to events *after* __init__ is complete self._subscribe_all_methods() def run_action(self, action_method_name: str, *args: Any) -> None: if not self._is_ready: return if self.current_task and not self.current_task.done(): self.current_task.cancel() coro = getattr(self, action_method_name)(*args) self.current_task = asyncio.run_coroutine_threadsafe(coro, self.loop) def _apply_state_effect(self, state_name: str, publish_state: bool = True): config = self.configs.get(state_name, self.configs["idle"]) _LOGGER.debug(f"Applying effect for state '{state_name}': {config['effect']}") self.run_action(config["effect"], config["color"], config["brightness"]) if publish_state: config["state_name"] = state_name self.event_bus.publish("publish_state_to_mqtt", config) async def startup_sequence(self, color=None, brightness=None): await self.blink(_GREEN, 1.0) async def off(self, color, brightness): self.leds.fill(_OFF); self.leds.show() async def solid(self, color: Tuple[int, int, int], brightness: float): r, g, b = color self.leds.fill((int(r * brightness), int(g * brightness), int(b * brightness))) self.leds.show() async def blink(self, color, brightness=1.0): await self.medium_blink(color, brightness) async def _base_pulse(self, color: Tuple[int, int, int], brightness: float, speed: float): try: r, g, b = color while True: for i in range(0, 101, 10): mod = i / 100.0 * brightness self.leds.fill((int(r*mod), int(g*mod), int(b*mod))); self.leds.show(); await asyncio.sleep(speed) for i in range(100, -1, -10): mod = i / 100.0 * brightness self.leds.fill((int(r*mod), int(g*mod), int(b*mod))); self.leds.show(); await asyncio.sleep(speed) except asyncio.CancelledError: self.leds.fill(_OFF); self.leds.show() async def slow_pulse(self, color, brightness): await self._base_pulse(color, brightness, 0.05) async def medium_pulse(self, color, brightness): await self._base_pulse(color, brightness, 0.02) async def fast_pulse(self, color, brightness): await self._base_pulse(color, brightness, 0.008) async def _base_blink(self, color: Tuple[int, int, int], brightness: float, speed: float): try: r, g, b = color bright_color = (int(r * brightness), int(g * brightness), int(b * brightness)) while True: self.leds.fill(bright_color); self.leds.show(); await asyncio.sleep(speed) self.leds.fill(_OFF); self.leds.show(); await asyncio.sleep(speed) except asyncio.CancelledError: self.leds.fill(_OFF); self.leds.show() async def slow_blink(self, color, brightness): await self._base_blink(color, brightness, 1.0) async def medium_blink(self, color, brightness): await self._base_blink(color, brightness, 0.5) async def fast_blink(self, color, brightness): await self._base_blink(color, brightness, 0.1) async def spin(self, color: Tuple[int, int, int], brightness: float, speed: float = 0.1): try: i = 0 bright_color = (int(color[0] * brightness), int(color[1] * brightness), int(color[2] * brightness)) while True: self.leds.fill(_OFF); self.leds[i % self.num_leds] = bright_color; self.leds.show(); i += 1; await asyncio.sleep(speed) except asyncio.CancelledError: self.leds.fill(_OFF); self.leds.show() # --- State Subscriptions --- @subscribe def voice_idle(self, data: dict): self._apply_state_effect("idle") @subscribe def voice_listen(self, data: dict): self._apply_state_effect("listening") @subscribe def voice_thinking(self, data: dict): self._apply_state_effect("thinking") @subscribe def voice_responding(self, data: dict): self._apply_state_effect("responding") @subscribe def voice_error(self, data: dict): self._apply_state_effect("error") @subscribe def mic_muted(self, data: dict): self.run_action("solid", _DIM_RED, 1.0) @subscribe def mic_unmuted(self, data: dict): self._apply_state_effect("idle") # --- MQTT Config Subscriptions --- def _update_config(self, state_name: str, data: dict, apply: bool): config = self.configs[state_name]; changed = False; is_retained = data.get("retained", False) new_effect = data.get("effect") if new_effect is not None and config["effect"] != new_effect: config["effect"] = new_effect; changed = True new_color_data = data.get("color") if new_color_data is not None: new_color_tuple = (new_color_data.get("r"), new_color_data.get("g"), new_color_data.get("b")) if config["color"] != new_color_tuple: config["color"] = new_color_tuple; changed = True new_brightness = data.get("brightness") if new_brightness is not None: new_brightness_float = new_brightness / 255.0 if abs(config["brightness"] - new_brightness_float) > 0.001: config["brightness"] = new_brightness_float; changed = True if is_retained: if changed and state_name == "idle": self._apply_state_effect("idle", publish_state=False) return if changed: if apply: self._apply_state_effect(state_name) else: config["state_name"] = state_name; self.event_bus.publish("publish_state_to_mqtt", config) @subscribe def set_idle_effect(self, data: dict): self._update_config("idle", data, True) @subscribe def set_idle_color(self, data: dict): self._update_config("idle", data, self.configs["idle"]["effect"] != "off") @subscribe def set_listening_effect(self, data: dict): self._update_config("listening", data, False) @subscribe def set_listening_color(self, data: dict): self._update_config("listening", data, False) @subscribe def set_thinking_effect(self, data: dict): self._update_config("thinking", data, False) @subscribe def set_thinking_color(self, data: dict): self._update_config("thinking", data, False) @subscribe def set_responding_effect(self, data: dict): self._update_config("responding", data, False) @subscribe def set_responding_color(self, data: dict): self._update_config("responding", data, False) @subscribe def set_error_effect(self, data: dict): self._update_config("error", data, False) @subscribe def set_error_color(self, data: dict): self._update_config("error", data, False) @subscribe def set_num_leds(self, data: dict): num_leds = data.get("num_leds") if (num_leds is not None) and (self.num_leds != num_leds): _LOGGER.info("Number of LEDs changed to %d. Please restart for change to take effect.", num_leds)