- alias: Tesla smart charging v4
  id: tesla_smart_charging_v4
  mode: restart

  trigger:
    - platform: time_pattern
      minutes: "/5"

  condition:
    # Valid future deadline
    - condition: template
      value_template: >
        {% set deadline = states('input_datetime.tesla_charge_deadline') %}
        {{ deadline not in ['unknown','unavailable','']
           and as_timestamp(deadline) > as_timestamp(now()) }}

    # Car must be connected
    - condition: state
      entity_id: binary_sensor.snowywhite_charger
      state: "on"

  action:
    - variables:
        charge_now: "{{ is_state('binary_sensor.tesla_charge_now', 'on') }}"
        charger_on: "{{ is_state('switch.home_charging', 'on') }}"

    - choose:

        # -------------------------
        # START charging (cheap hour)
        # -------------------------
        - conditions:
            - condition: template
              value_template: "{{ charge_now and not charger_on }}"

          sequence:
            - service: system_log.write
              data:
                message: "Tesla: START charging (cheap hour)"
                level: info

            - service: switch.turn_on
              target:
                entity_id: switch.home_charging

        # -------------------------
        # STOP charging (not cheap)
        # -------------------------
        - conditions:
            - condition: template
              value_template: "{{ not charge_now and charger_on }}"

          sequence:
            - service: system_log.write
              data:
                message: "Tesla: STOP charging (not cheap)"
                level: info

            - service: switch.turn_off
              target:
                entity_id: switch.home_charging

    # -------------------------
    # Default: do nothing
    # -------------------------
    - service: system_log.write
      data:
        message: >
          Tesla: No action (charge_now={{ charge_now }},
          charger_on={{ charger_on }})
        level: debug