blueprint:
  name: Daikin Demand Curve Controller (Select 5%)
  description: >
    Regelt die Demand-Leistung einer Klimaanlage anhand einer
    Außentemperatur-Kennlinie mit linearer Interpolation.
    Der Demand wird auf 5% Schritte gerundet und über eine select-Entity gesetzt.

  domain: automation

  input:

    hvac:
      name: Klimaanlage
      selector:
        entity:
          domain: climate

    outdoor_sensor:
      name: Außentemperatur
      selector:
        entity:
          domain: sensor
          device_class: temperature

    room_sensor:
      name: Raumtemperatur
      selector:
        entity:
          domain: sensor
          device_class: temperature

    demand_entity:
      name: Demand Entity
      selector:
        entity:
          domain: select

    demand_curve:
      name: Demand Kennlinie
      description: JSON Liste von Punkten [Temperatur, Demand]
      default: "[[-5,60],[0,55],[5,50],[10,45],[15,30]]"
      selector:
        text:

    demand_min:
      name: Minimum Demand
      default: 30
      selector:
        number:
          min: 0
          max: 100

    demand_max:
      name: Maximum Demand
      default: 80
      selector:
        number:
          min: 0
          max: 100

    boost_threshold:
      name: Heiz-Boost Temperaturdifferenz
      default: 0.5
      selector:
        number:
          min: 0
          max: 2
          step: 0.1

    boost_amount:
      name: Demand Boost %
      default: 10
      selector:
        number:
          min: 0
          max: 50


trigger:

  - platform: state
    entity_id: !input outdoor_sensor

  - platform: state
    entity_id: !input room_sensor


condition:
  - condition: state
    entity_id: !input hvac
    state: heat


action:

  - variables:

      hvac_entity: !input hvac
      outdoor_sensor_entity: !input outdoor_sensor
      room_sensor_entity: !input room_sensor
      demand_entity_var: !input demand_entity

      boost_threshold: !input boost_threshold
      boost_amount: !input boost_amount
      demand_min: !input demand_min
      demand_max: !input demand_max

      curve_raw: !input demand_curve

  - variables:

      curve: "{{ curve_raw | from_json }}"
      outdoor: "{{ states(outdoor_sensor_entity) | float }}"
      room: "{{ states(room_sensor_entity) | float }}"
      target: "{{ state_attr(hvac_entity,'temperature') | float }}"

  - variables:

      base_demand: >

        {% set out = outdoor %}
        {% set pts = curve %}

        {% if out <= pts[0][0] %}
          {{ pts[0][1] }}

        {% elif out >= pts[-1][0] %}
          {{ pts[-1][1] }}

        {% else %}

          {% for i in range(pts|length - 1) %}
            {% set a = pts[i] %}
            {% set b = pts[i+1] %}

            {% if out >= a[0] and out <= b[0] %}
              {% set ratio = (out - a[0]) / (b[0] - a[0]) %}
              {{ (a[1] + ratio * (b[1] - a[1])) }}
            {% endif %}
          {% endfor %}

        {% endif %}

  - variables:

      diff: "{{ target - room }}"

      demand: >
        {% set base = base_demand | float %}
        {% if diff > boost_threshold %}
          {{ base + boost_amount }}
        {% else %}
          {{ base }}
        {% endif %}

  - variables:

      limited: >
        {% set val = demand | float %}
        {{ [demand_max, [val, demand_min] | max] | min }}

      rounded: "{{ (limited / 5) | round(0) * 5 }}"
      option: "{{ rounded | int }}"

  - service: select.select_option
    target:
      entity_id: "{{ demand_entity_var }}"
    data:
      option: "{{ option }}"

mode: restart