Home Assistant desired state

lights.package.yaml

automation light:
  - id: 'lights_process_desired_state'
    alias: "[Lights] Process desired state"
    mode: parallel
    max: 50
    trigger:
      - platform: state
        entity_id:
          - binary_sensor.lights_office_desired_state
          - binary_sensor.many_many_others_desires_state
    condition:
      - condition: template
        value_template: "{{ trigger.to_state.attributes['enabled'] and trigger.entity_id not in state_attr('group.disabled_desired_state_sensors', 'entity_id')  }}"
    action:
      - service: >
          light.turn_{{ states(trigger.entity_id) }}
        data_template:
          entity_id: "{{ state_attr(trigger.entity_id, 'target_entity_id') }}"

lights.template.yaml

- unique_id: lights
  binary_sensor:
    - name: "[Lights:Office] Desired state"
      unique_id: office
      attributes:
        enabled: "{{ is_state('input_boolean.office_automations', 'on') }}"
        target_entity_id: light.office
      delay_on: "{{ '00:00:00' if is_state('sun.sun', 'below_horizon') else '00:00:05' }}"
      delay_off: "{{ '00:00:00' if is_state('sun.sun', 'below_horizon') else '00:00:05' }}"
      state: >
        {% set is_night = is_state('sun.sun', 'below_horizon') %}
        {% set is_occupied = is_state('binary_sensor.office_aqara_occupancy', 'on') %}
        {% set transition_state = states('sensor.shades_office_main_transition_desired_state') %}
        {% set blackout_state = states('sensor.shades_office_main_blackout_desired_state') %}

        {% if not is_occupied %}
          False
        {% elif is_night %}
          True
        {% else %}
          False
        {% endif %}

shades.template.yaml

# this one is too bonkers not to share - but it shows how complex you can get if you so desire
# some of the referenced sensors are themselves templates based on azimuth/elevation of the sun, my home's lat/long, and the physical orientation & layout of my windows :sweat-smile:
    - name: "[Shades:Office] Main transition desired state"
      unique_id: office_main_transition
      attributes:
        enabled: "{{ is_state('input_boolean.office_automations', 'on') and is_state('input_boolean.office_is_blackout_half_lowered', 'off') }}"
        target_entity_id: cover.office_main_transition
      state: >
        {% set current = now() %}
        {% set is_home_changed = [as_local(states.group.family.last_changed), today_at('00:00:00')] | max %}
        {% set office_morning = today_at(states('input_datetime.office_morning')) %}
        {# HACK: Add 1 minute to occupied_changed, because groups seem to boot up later after a HA restart #}
        {% set occupied_changed = as_local(states.binary_sensor.office_occupied.last_changed) + timedelta(minutes=1) %}
        {% set is_occupied_today = occupied_changed > is_home_changed and occupied_changed > office_morning %}
        {% set blackout_used_today = states.sensor.shades_office_main_blackout_desired_state.last_changed > today_at('00:00:00') %}
        {% set azimuth = state_attr('sun.sun', 'azimuth') | float %}
        {% set open_state = 'Open' if is_state('input_boolean.office_allow_open_shade', 'on') and not blackout_used_today else 'Stripes' %}

        {% if is_state('sun.sun', 'below_horizon') %}
          Closed
        {% elif is_state('group.family', 'not_home') %}
          Closed
        {% elif is_state('sensor.shades_office_main_blackout_desired_state', 'Closed') %}
          Closed
        {% elif current < office_morning %}
          Closed
        {% elif not is_occupied_today and is_state('binary_sensor.office_occupied', 'off') %}
          Closed
        {% elif current >= today_at(states('input_datetime.common_evening')) %}
          Closed
        {% elif open_state == 'Stripes' and is_state('binary_sensor.office_occupied', 'off') %}
          Closed
        {% elif is_state('binary_sensor.shades_front_sun', 'off') %}
          {{ open_state }}
        {% elif is_state('binary_sensor.shades_front_sun', 'on') and is_state('binary_sensor.sunny', 'off') %}
          {{ open_state }}
        {% elif is_state('binary_sensor.shades_front_sun', 'on') %}
          Closed
        {% else %}
          Unavailable
        {% endif %}