home-assistant/packages/plex.yaml

automation:
  - alias: Dim when Plex is active
    action:
      - service: scene.turn_on
        entity_id: scene.dimmed_brightness
    trigger:
      - platform: state
        entity_id: media_player.plex_ps4
        to: playing
        from: idle
    condition:
      - condition: state
        entity_id: light.living_room
        state: 'on'
  - alias: Restore nighttime lights after Plex
    action:
      - service: scene.turn_on
        entity_id: scene.nighttime_brightness
    trigger:
      - platform: state
        entity_id: media_player.plex_ps4
        to: idle
        from: playing
    condition:
      - condition: state
        entity_id: light.living_room
        state: 'on'
      - condition: state
        entity_id: sun.sun
        state: 'below_horizon'
  - alias: Restore normal lights after Plex
    action:
      - service: scene.turn_on
        entity_id: scene.normal_brightness
    trigger:
      - platform: state
        entity_id: media_player.plex_ps4
        to: idle
        from: playing
    condition:
      - condition: state
        entity_id: light.living_room
        state: 'on'
      - condition: state
        entity_id: sun.sun
        state: 'above_horizon'

group:
  Plex:
    view: yes
    icon: mdi:television
    entities:
      - group.plex_players
      - group.plex_automations
  plex_players:
    name: Plex
    entities:
      - media_player.plex_ps4
  plex_automations:
    name: Automations
    entities:
      - automation.dim_when_plex_is_active
      - automation.restore_nighttime_lights_after_plex
      - automation.restore_normal_lights_after_plex