Electric price indicator

I find the programming language in Home Assistant incredibly hard to understand. This project should have taken hours instead of days, but here it is. The price indicator that shows the family when to activate the dish washer. The leftmost lamp is the price right now, the second and third is the price next hour and the following. The final lamp is a mean price indicator for hour 3-6.

Don’t know if linking to own pages is allowed, but you can see the full build project (in Swedish) on my blog: Bygg din egen elprislampa – Tomas Heed

- id: "price_indicator"
  alias: Ljusstake
  mode: single

  variables:
    today_prices: "{{ state_attr('sensor.nordpool', 'today') }}"
    tomorrow_prices: "{{ state_attr('sensor.nordpool', 'tomorrow') }}"
    prices: "{{ today_prices + tomorrow_prices}}"
    hour: " {{now().hour | int}}"
    price0: "{{prices[hour]}}"
    price1: "{{prices[hour + 1]}}"
    price2: "{{prices[hour + 2]}}"
    price3: "{{(prices[hour + 3] + prices[hour + 4] + prices[hour + 5]) /3}}"
    index0: "{{((price0 - 0.44) * 10) | int }} "
    index1: "{{((price1 - 0.44) * 10) | int }} "
    index2: "{{((price2 - 0.44) * 10) | int }} "
    index3: "{{((price3 - 0.44) * 10) | int }} "
    index0m: "{% if (index0 < 0) %} {{ 0 }} {% elif (index0 > 9) %} {{ 9 }} {% else %} {{ index0 }} {% endif %}"
    index1m: "{% if (index1 < 0) %} {{ 0 }} {% elif (index1 > 9) %} {{ 9 }} {% else %} {{ index1 }} {% endif %}"
    index2m: "{% if (index2 < 0) %} {{ 0 }} {% elif (index2 > 9) %} {{ 9 }} {% else %} {{ index2 }} {% endif %}"
    index3m: "{% if (index3 < 0) %} {{ 0 }} {% elif (index3 > 9) %} {{ 9 }} {% else %} {{ index3 }} {% endif %}"
    colors:
      [
        [0, 255, 0],
        [63, 255, 0],
        [127, 255, 0],
        [190, 255, 0],
        [255, 255, 0],
        [255, 200, 0],
        [255, 150, 0],
        [255, 100, 0],
        [255, 50, 0],
        [255, 0, 0],
      ]
  triggers:
    - trigger: state
      entity_id:
        - sensor.nordpool
    - trigger: time
      at: "23:00:00"
      id: turn_off
  actions:
    - choose:
        - conditions:
            - condition: trigger
              id: turn_off
          sequence:
            - action: light.turn_off
              entity_id:
                - light.stake_1
                - light.stake_2
                - light.stake_3
                - light.stake_4
        - conditions:
            - condition: template
              value_template: "{{ hour > 7 and hour < 23 }}"
          sequence:
            - action: light.turn_on
              entity_id: light.stake_1
              data:
                rgb_color: "{{ colors[index0m] }}"
            - action: light.turn_on
              entity_id: light.stake_2
              data:
                rgb_color: "{{ colors[index1m] }}"
            - action: light.turn_on
              entity_id: light.stake_3
              data:
                rgb_color: "{{ colors[index2m] }}"
            - action: light.turn_on
              entity_id: light.stake_4
              data:
                rgb_color: "{{ colors[index3m] }}"