# ===== LED Bar (WS2812B) =====
light:
  - platform: esp32_rmt_led_strip
    id: led_bar
    chipset: WS2812
    rgb_order: GRB
    pin: ${led_pin}
    num_leds: ${led_num_leds}
    name: "Voice Satellite LEDs"
    default_transition_length: 200ms
    effects:
      - addressable_lambda:
          name: "Idle Breathe"
          update_interval: 50ms
          lambda: |-
            static float brightness = 0;
            static int direction = 1;
            brightness += direction * 0.02;
            if (brightness >= 1.0) { brightness = 1.0; direction = -1; }
            if (brightness <= 0.1) { brightness = 0.1; direction = 1; }
            for (int i = 0; i < it.size(); i++) {
              it[i] = Color(0, 0, (int)(40 * brightness));
            }
      - addressable_lambda:
          name: "Listening Pulse"
          update_interval: 30ms
          lambda: |-
            static int pos = 0;
            pos = (pos + 1) % (it.size() * 2);
            for (int i = 0; i < it.size(); i++) {
              int dist = abs(pos - i);
              if (pos >= it.size()) dist = abs((it.size() * 2 - pos) - i);
              int bright = max(0, 255 - dist * 60);
              it[i] = Color(0, bright, bright);
            }
      - addressable_lambda:
          name: "Processing"
          update_interval: 80ms
          lambda: |-
            static int offset = 0;
            offset = (offset + 1) % it.size();
            for (int i = 0; i < it.size(); i++) {
              if ((i + offset) % 2 == 0) {
                it[i] = Color(80, 0, 180);
              } else {
                it[i] = Color(0, 0, 0);
              }
            }
      - addressable_lambda:
          name: "Speaking"
          update_interval: 40ms
          lambda: |-
            static int wave = 0;
            wave = (wave + 1) % 16;
            for (int i = 0; i < it.size(); i++) {
              int bright = (sin((wave + i * 2) * 0.4) + 1) * 127;
              it[i] = Color(0, bright, 0);
            }
      - addressable_lambda:
          name: "Error Flash"
          update_interval: 100ms
          lambda: |-
            static bool on = false;
            on = !on;
            for (int i = 0; i < it.size(); i++) {
              it[i] = on ? Color(255, 0, 0) : Color(0, 0, 0);
            }