HASS Script Loop Scenes in Area

alias: Loop Scenes in Area
sequence:
  - variables:
      scene_info: |
        {# Define current scene and list of scenes #}
        {% set current_scene = states(current_scene_entity) %}
        {% set scenes = expand(area_entities(scene_area))
                        | selectattr('domain', 'eq', 'scene')
                        | map(attribute='entity_id')
                        | list | sort %}

        {# Find the index of the current scene in the list of scenes #}
        {% set current_index = scenes.index(current_scene)
                               if current_scene in scenes
                               else -1 %}

        {# Retrieve the current direction (1 for forward, -1 for reverse) #}
        {% set current_direction = states(scene_direction_entity) | int %}

        {# Calculate the next index based on direction #}
        {% set next_index = current_index + current_direction %}

        {# Reverse direction if at the beginning or end of the list #}
        {% if next_index >= scenes | length %}
          {% set next_index = scenes | length - 2 %}
          {% set current_direction = -1 %}
        {% elif next_index < 0 %}
          {% set next_index = 1 %}
          {% set current_direction = 1 %}
        {% endif %}

        {# Output the next scene entity ID #}
        {{ {
            'next_scene': scenes[next_index],
            'direction': current_direction,
        } }}
  - action: scene.turn_on
    metadata: {}
    data:
      entity_id: "{{ scene_info['next_scene'] }}"
  - action: input_text.set_value
    metadata: {}
    target:
      entity_id: "{{ current_scene_entity }}"
    data:
      value: "{{ scene_info['next_scene'] }}"
  - action: input_number.set_value
    metadata: {}
    target:
      entity_id: "{{ scene_direction_entity }}"
    data:
      value: "{{ scene_info['direction'] | float }}"
fields:
  current_scene_entity:
    selector:
      entity:
        filter:
          domain: input_text
    name: Current Scene Entity
    required: true
    description: Text entity to store the active scene.
  scene_area:
    selector:
      area: {}
    name: Scene Area
    description: >-
      Scenes must be attached to the selected area to be recognised by this
      script.
    required: true
  scene_direction_entity:
    selector:
      entity:
        filter:
          domain: input_number
    name: Scene Direction Entity
    description: Number entity to store the state of direction (-1/1).
    required: true
description: Loop through scenes (a-z then back through z-a) in the specified area.
icon: mdi:lightbulb-multiple-outline