ansible-home-assistant/configuration/automations/bathroom-shower-motion.yaml

- id: bathroom-shower-motion-on
  alias: '[Bathroom] Shower Motion On'
  mode: restart
  trigger:
    - platform: state
      entity_id: binary_sensor.shower_motion
      from: 'off'
      to: 'on'
  action:
    - service: script.bathroom_shower_lights_on
    - choose:
        - conditions:
            - condition: state
              entity_id: media_player.bathroom
              state: playing
          sequence:
            - service: media_player.volume_set
              data:
                volume_level: 0.65
              target:
                entity_id: media_player.bathroom

- id: bathroom-shower-motion-off
  alias: '[Bathroom] Shower Motion Off'
  mode: restart
  trigger:
    - platform: state
      entity_id: binary_sensor.shower_motion
      for: '0:02:00'
      from: 'on'
      to: 'off'
    - platform: state
      entity_id: binary_sensor.bathroom_motion_occupancy
      for: '0:05:00'
      from: 'on'
      to: 'off'
  condition:
    - condition: state
      entity_id: binary_sensor.shower_motion
      for: '0:02:00'
      state: 'off'
  action:
    - service: script.bathroom_shower_lights_off
    - choose:
        - conditions:
            - condition: state
              entity_id: media_player.bathroom
              state: playing
          sequence:
            - repeat:
                until:
                  - condition: numeric_state
                    entity_id: media_player.bathroom
                    attribute: volume_level
                    below: '0.45'
                sequence:
                  - service: media_player.volume_down
                    target:
                      entity_id: media_player.bathroom
                  - delay:
                      seconds: 10
            - service: media_player.volume_set
              data:
                volume_level: 0.45
              target:
                entity_id: media_player.bathroom