mqtt:

  sensor:
    # --- Mode (mapped int -> string) ---
    - name: "Pellet Stove Mode"
      state_topic: "pelletstove/state"
      value_template: >
        {% set m = value_json.mode | int %}
        {% set modes = {
          0: 'OFF',
          2: 'STANDBY',
          4: 'PRIME',
          5: 'PRIMING',
          6: 'IGNITION',
          8: 'WARMUP',
          10: 'HIGH HEAT',
          12: 'LOW HEAT',
          14: 'COOLING',
          20: 'ON',
          21: 'ALARM',
          22: 'ALARM COOLDOWN',
          23: 'OFF COOLDOWN',
          24: 'STANDBY COOLDOWN',
          25: 'STBY COOLDOWN',
          40: 'TEST'
        } %}
        {{ modes.get(m, 'UNKNOWN') }}
    
    # --- Temperatures ---
    - name: "Pellet Stove Flame Temp"
      state_topic: "pelletstove/state"
      value_template: "{{ value_json.tFlame }}"
      unit_of_measurement: "°C"
    
    - name: "Pellet Stove Flue Temp"
      state_topic: "pelletstove/state"
      value_template: "{{ value_json.tFlue }}"
      unit_of_measurement: "°C"
    
    - name: "Pellet Stove Feed Rate"
      state_topic: "pelletstove/state"
      value_template: "{{ value_json.feed }}"
      unit_of_measurement: "%"
      state_class: measurement


template:
  - binary_sensor:
      - name: "Pellet Stove Steady-State Supervision Fault"
        unique_id: pellet_stove_steady_state_fault
        state: >
          {% set mode = states('sensor.pellet_stove_mode') %}
          {% set feed = states('sensor.pellet_stove_feed_rate') | float(0) %}
          {% set flame = states('sensor.pellet_stove_flame_temp') | float(0) %}
          {% set flue = states('sensor.pellet_stove_flue_temp') | float(0) %}

          {% set steady_modes = ['HIGH HEAT', 'LOW HEAT', 'ON'] %}

          {{
            mode in steady_modes and (
              (feed > 35 and flame < 200) or
              (flame < 200 and flue > 120)
            )
          }}
        delay_on: "00:01:30"
        device_class: problem