blueprint:
  name: Open Windows/Doors Notification (Debug)
  description: Debug blueprint to verify open windows/doors and notifications.
  domain: automation
  input:
    openings:
      name: Windows & Doors
      selector:
        entity:
          domain: binary_sensor
          multiple: true
    notify_service:
      name: Notification Service
      default: notify.notify
      selector:
        text: {}
    custom_message:
      name: Custom Message Template
      default: "Open windows: {{ entity_name }}"
      selector:
        text: {}

trigger:
  - platform: state
    entity_id: !input openings

action:
  - variables:
      openings_list: !input openings
      notify_service_name: !input notify_service
      message_template: !input custom_message

      open_entities: >
        {% set list = [] %}
        {% for ent_id in openings_list %}
          {% set st = states[ent_id] if ent_id in states else None %}
          {% if st is not none and st.state == 'on' %}
            {% set _ = list.append(st.attributes.friendly_name | default(ent_id)) %}
          {% endif %}
        {% endfor %}
        {{ list }}

  - service: "{{ notify_service_name }}"
    data:
      message: >
        {% if open_entities | count > 0 %}
          {{ message_template | replace('{{ entity_name }}', open_entities | join(', ')) }}
        {% else %}
          No windows are open.
        {% endif %}