Chromecast Volume Managment

chromecast_volume_management.yaml

blueprint:
  name: Chromecast Volume Management
  description: Adjust receiver volume when Chromecast volume is above or below threshold
  source_url: https://gist.github.com/TonyApuzzo/4e84f374f561460e0334457d347cad28
  domain: automation
  input:
    trigger_chromecast:
      name: Chromecast
      description: >
        The Chromecast (or other media player) who's volume range should be
        adjusted when the Chromecast's volume limits are encountered.
      selector:
        entity:
          domain: media_player
    target_receiver:
      name: Receiver
      description: >
        The Receiver that the Chromecast is plugged into. This entity's volume
        will be increased / decreased when the Chromecast's volume is set above
        or below the target threshold respectively.
      selector:
        entity:
          domain: media_player
    in_min_threshold:
      name: Minimum Threshold
      description: >
        When the Chromecast volume is set below minimum threshold, then the
        Receiver's volume will be turned down and the Chromecast's volume reset
        to the threshold. Chromecast volumes are floating-point numbers ranging
        from 0.00 to 1.00
      default: 0.05
    in_max_threshold:
      name: Maximum Threshold
      description: >
        When the Chromecast volume is set above maximum threshold, then the
        Receiver's volume will be turned up and the Chromecast's volume reset
        to the threshold. Chromecast volumes are floating-point numbers ranging
        from 0.00 to 1.00
      default: 0.95

variables:
  input_min_threshold: !input in_min_threshold
  input_max_threshold: !input in_max_threshold
  range: "{{ [input_min_threshold, input_max_threshold ] }}"
  min_threshold: "{{ range | min | float }}"
  max_threshold: "{{ range | max | float }}"

trigger:
  - platform: state
    entity_id: !input trigger_chromecast
    attribute: volume_level

condition:
  condition: template
  value_template: >
    {{ state_attr(trigger.entity_id, 'volume_level') < min_threshold 
       or state_attr(trigger.entity_id, 'volume_level') > max_threshold }}

action:
  - service: media_player.volume_set
    target:
      entity_id: '{{ trigger.entity_id }}'
    data:
      volume_level: |
        {% if trigger.to_state.attributes.volume_level | float < (min_threshold|float) %}
          {{ min_threshold | float }}
        {% else %}
          {{ max_threshold | float }}
        {% endif %}
  - service: |
      {% if trigger.to_state.attributes.volume_level | float < (min_threshold|float) %}
        media_player.volume_down
      {% else %}
        media_player.volume_up
      {% endif %}
    target:
      entity_id: !input target_receiver

mode: restart