Dim lights when playing media

dim-lights-when-playing-media.yaml

blueprint:
  name: Dim lights when playing media
  description: 'Change the brightness of a given light when a media player is turned on.
                It works on a two step-transition, both on startup and shutdown.'
  domain: automation
  input:
    player_entity:
      name: Media player
      description: 'The monitored media player'
      selector:
        entity:
          domain: media_player
    light_entity:
      name: Light controlled
      description: 'The light associated to the media player'
      selector:
        entity:
          domain: light
    on_brightness:
      name: Light brightness when TV is on
      default: 0
      selector:
        number:
          min: 0
          max: 100
          unit_of_measurement: "%"
          mode: slider
    off_brightness:
      name: Light brightness when TV is off
      default: 100
      selector:
        number:
          min: 0
          max: 100
          unit_of_measurement: "%"
          mode: slider
    startup_brightness:
      name: Brightness used on startup
      description: 'On startup we use this brightness for some seconds.'
      default: 60
      selector:
        number:
          min: 0
          max: 100
          unit_of_measurement: "%"
          mode: slider
    shutdown_brightness:
      name: Brightness used on shutdown
      description: 'On shutdown we use this brightness for some seconds.'
      default: 10
      selector:
        number:
          min: 0
          max: 100
          unit_of_measurement: "%"
          mode: slider
    two_step_delay:
      name: Two step delay
      description: 'How long we should stay in the temporary states.'
      default: 5
      selector:
        number:
          min: 0
          max: 1000
          unit_of_measurement: "seconds"
  source_url: https://gist.github.com/MatteoNardi/cf5ea37171a899a5e5915a3ff871fa5b

trigger:
  - platform: state
    entity_id: !input 'player_entity'
condition: []
mode: restart

action:
  - choose:
      - conditions:
          - condition: state
            entity_id: !input player_entity
            state: 'on'
        sequence:
          - service: light.turn_on
            target:
              entity_id: !input light_entity
            data:
              transition: 2
              brightness_pct: !input startup_brightness
          - delay: !input two_step_delay
          - service: light.turn_on
            target:
              entity_id: !input light_entity
            data:
              transition: 2
              brightness_pct: !input on_brightness
      - conditions:
          - condition: state
            entity_id: !input player_entity
            state: 'off'
        sequence:
          - service: light.turn_on
            target:
              entity_id: !input light_entity
            data:
              transition: 2
              brightness_pct: !input shutdown_brightness
          - delay: !input two_step_delay
          - service: light.turn_on
            target:
              entity_id: !input light_entity
            data:
              transition: 2
              brightness_pct: !input off_brightness
    default: []