Home Assistant dim outdoor lights according to sun

template:
  - binary_sensor:
    - name: sun_above_horizon
      device_class: light
      state: "{%if state_attr('sun.sun', 'elevation')|float(0) > 2 %}True{%else%}False{%endif%}"

input_number:
  outdoor_lights_brightness:
    name: Outdoor light brightness
    min: -1
    max: 101
    step: 1

automation:
  - alias: dim outdoor lights according to daylight
    trigger:
      - platform: state
        entity_id: binary_sensor.sun_above_horizon
        to: ['on', 'off']
        from: ['on', 'off']
    variables:
      brightness_pct: "{{ 0 if states('binary_sensor.sun_above_horizon') == 'on' else 100 }}"
      direction: "{{ 1 if states('binary_sensor.sun_above_horizon') == 'on' else -1 }}"
    action:
      # store the starting value
      - service: input_number.set_value
        data:
          entity_id: input_number.outdoor_lights_brightness
          value: "{{brightness_pct}}"
      - repeat:
          # repeat until value is outside of range
          until: "{{states('input_number.outdoor_lights_brightness')|int(-1) < 0 or states('input_number.outdoor_lights_brightness')|int(101) > 100}}"
          sequence:
              #first calculate the new number
            - service: input_number.set_value
              data:
                entity_id: input_number.outdoor_lights_brightness
                value: "{{states('input_number.outdoor_lights_brightness')|int(0)+direction}}"
              # then apply new number to the lights
            - service: light.turn_on
              data:
                entity_id: light.outdoor_lights
                brightness_pct: "{{states('input_number.outdoor_lights_brightness')|int(0)}}"
            - delay: '00:00:02'
    mode: restart