Using variable in value_template of if-then-else

Configuration
1

I’m struggling with using a value_template condition on an if-then-else action in an automation, where I want to use a variable to provide the entity to get the state from.

Here’s the automation thus far:

  trigger:
    - platform: state
      entity_id:
        - binary_sensor.parents_bedroom_channel_1_input
        - binary_sensor.parents_bedroom_channel_2_input
  condition: []
  action:
    - if:
        - condition: template
          value_template: >
            {{ is_state("{{ light }}", 'on') }}
      then:
        - if:
            - condition: time
              after: "21:00:00"
          then:
            - delay:
                hours: 0
                minutes: 0
                seconds: 10
                milliseconds: 0
        - service: light.turn_off
          target:
            entity_id: "{{ light }}"
      else:
        - service: light.turn_on
          target:
            entity_id: "{{ light }}"
  mode: single
  variables:
    light: "{{ 'light.parents_fan' if trigger.entity_id 'binary_sensor.parents_bedroom_channel_1_input' else 'light.parents_downlights' }}"

I have a variable, light that I want to use the is_state test against, but I’m not sure how to use a variable within a value_template.

Edit there was also a bug in my automation for creating the variable, I missed the == in the if statement.

2

Not sure but I would guess:

          value_template: >
            {{ is_state(light , 'on') }}