group:
  all_windows:
    name: All windows
    entities:
      - binary_sensor.living_room_right_window
      - binary_sensor.bedroom_left_window
      - binary_sensor.bedroom_right_window
      - binary_sensor.kitchen_window

binary_sensor:
  - platform: template
    sensors:
      living_room_right_window:
        friendly_name: Living room window
        device_class: window
        value_template: "{{ is_state('binary_sensor.living_room_right_window_on_off', 'on') }}"
        entity_id: binary_sensor.living_room_right_window_on_off
        icon_template: >
          {% if is_state('binary_sensor.living_room_right_window_on_off', 'on') %} mdi:window-open-variant
          {% else %} mdi:window-closed-variant
          {% endif %}

      bedroom_right_window:
        friendly_name: Bedroom right window
        device_class: window
        value_template: "{{ is_state('binary_sensor.bedroom_right_window_on_off', 'on') }}"
        entity_id: binary_sensor.bedroom_right_window_on_off
        icon_template: >
          {% if is_state('binary_sensor.bedroom_right_window_on_off', 'on') %} mdi:window-open-variant
          {% else %} mdi:window-closed-variant
          {% endif %}

      bedroom_left_window:
        friendly_name: Bedroom left window
        device_class: window
        value_template: "{{ is_state('binary_sensor.bedroom_left_window_raw', 'on') }}"
        entity_id: binary_sensor.bedroom_left_window_raw
        icon_template: >
          {% if is_state('binary_sensor.bedroom_left_window_raw', 'on') %} mdi:window-open-variant
          {% else %} mdi:window-closed-variant
          {% endif %}

      kitchen_window:
        friendly_name: Kitchen window
        device_class: window
        value_template: "{{ is_state('binary_sensor.kitchen_window_raw', 'on') }}"
        entity_id: binary_sensor.kitchen_window_raw
        icon_template: >
          {% if is_state('binary_sensor.kitchen_window_raw', 'on') %} mdi:window-open-variant
          {% else %} mdi:window-closed-variant
          {% endif %}


sensor:
  - platform: template
    sensors:
      open_window_count:
        entity_id:
          - binary_sensor.living_room_right_window
          - binary_sensor.bedroom_left_window
          - binary_sensor.bedroom_right_window
          - binary_sensor.kitchen_window
        friendly_name: Open window count
        value_template: >-
          {{ states | selectattr('entity_id', 'in', state_attr('group.all_windows', 'entity_id')) | selectattr('state', 'eq', 'on') | list | count | int }}

#
# ─── CUSTOMIZATION ──────────────────────────────────────────────────────────────
#

homeassistant:
  customize:
    sensor.living_room_right_window_power:
      friendly_name: Living room window battery

    sensor.bedroom_left_window_power:
      friendly_name: Bedroom left window battery

    sensor.bedroom_right_window_power:
      friendly_name: Bedroom right window battery

    sensor.kitchen_window_power:
      friendly_name: Kitchen window battery