blueprint:
  name: Time of Day State Machine (with Sensors)
  description: >
    Map a list of time-of-day states (input_select options) to a list of time entities or sensors.
    At each threshold, set the input_select to the corresponding state.
    Index-to-index mapping is guaranteed (state[0] ↔ time[0], state[1] ↔ time[1], etc).
    Times can be input_datetime or sensors reporting HH:MM[:SS] values (e.g. sunset).
  domain: automation

  input:
    tod_select:
      name: Time of Day selector
      description: The input_select entity that holds the current time-of-day state
      selector:
        entity:
          domain: input_select

    tod_states:
      name: Time of Day states
      description: Ordered list of state names (must match input_select options)
      selector:
        text:
          multiple: true

    tod_times:
      name: Time of Day times/sensors
      description: Ordered list of input_datetime or sensor entities (same length as states)
      selector:
        entity:
          multiple: true

mode: restart

trigger:
  # Trigger whenever any time-of-day entity changes
  - platform: state
    entity_id: !input tod_times
  # Also trigger every minute to re-evaluate
  - platform: time_pattern
    minutes: "/1"

variables:
  states: !input tod_states
  times: !input tod_times
  tod_select: !input tod_select

  # Convert each entity state into seconds since midnight
  thresholds: >
    {% set out = [] %}
    {% for t in times %}
      {% set val = states(t) | as_datetime %}
      {% if val is not none %}
        {% set sec = dt.hour * 3600 + dt.minute * 60 + dt.second %}
        {% set out = out + [sec] %}
      {% endif %}
    {% endfor %}
    {{ out }}

  now_sec: >
    {% set n = now() %}
    {{ n.hour * 3600 + n.minute * 60 + n.second }}

  # Find the correct index based on current time
  current_index: >
    {% set idx = 0 %}
    {% for i in range(thresholds|length) %}
      {% if now_sec >= thresholds[i] %}
        {% set idx = i %}
      {% endif %}
    {% endfor %}
    {{ idx }}

  current_state: "{{ states[current_index] }}"

action:
  - service: input_select.select_option
    target:
      entity_id: "{{ tod_select }}"
    data:
      option: "{{ current_state }}"