Klipper heating cancel

# HEAT_SOAK _HEATER="heater_bed" TARGET_TEMP=[bed_temperature_initial_layer_single] DURATION=5
# HEAT_SOAK _HEATER="heater_bed" TARGET_TEMP=30 DURATION=5
# HEAT_SOAK _HEATER="extruder" TARGET_TEMP=[nozzle_temperature_initial_layer] DURATION=0

# ToDo
# disable a print starting if heat soak running, also disable heat soak if print running

[gcode_macro HEAT_SOAK]
description: heats and soaks

variable_heaty: None
variable_target_temp: 0
variable_current_temp: 0
variable_stage: None ## heating -> soaking -> done -> None

## in seconds
variable_check_interval: 10
variable_soak_time_remaining: 0
variable_total_time_elapsed: 0

# {% set pa = (printer.save_variables.variables.is_printing) %}

gcode:
    {% set isP = (printer.save_variables.variables.is_printing) %}
    {% if isP %}
        M117 possible print ongoing {params._HEATER}
    {% else %}
        SAVE_VARIABLE VARIABLE=is_printing VALUE=True
        {% if params._HEATER == "extruder" %}
            {% set _HEATER = "extruder" %}
            {% set TARGET_TEMP = params.TARGET_TEMP | default(printer.save_variables.variables.my_nozzle_temp) | float %}
            {% set DURATION = params.DURATION | default(0) %}  ## no soak for nozzle
            {% set CURRENT_TEMP = printer.extruder.temperature %}
        {% else %}
            {% set _HEATER = ("heater_bed" | string) %}
            {% set TARGET_TEMP = params.TARGET_TEMP | default(printer.save_variables.variables.my_bed_temp) | float %}
            {% set DURATION = (params.DURATION | default(printer.save_variables.variables.my_bed_soak) | int) * 60 %} ## minutes to seconds
            {% set CURRENT_TEMP = printer.heater_bed.temperature %}
        {% endif %}

        {% if CURRENT_TEMP < TARGET_TEMP - (TARGET_TEMP * 0.50) %}
            {% set DURATION = DURATION|int %}
        {% elif CURRENT_TEMP < (TARGET_TEMP * 0.75) %}
            {% set DURATION = DURATION / 2|int %}
        {% else %}
            {% set DURATION = DURATION * 0.75|int %}
        {% endif %}

        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=heaty VALUE="'{ _HEATER }'"
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=target_temp VALUE={ TARGET_TEMP }
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=stage VALUE="'heating'"
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=soak_time_remaining VALUE={ DURATION }
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=total_time_elapsed  VALUE=0

        ;; fire up the heater
        SET_HEATER_TEMPERATURE HEATER={ _HEATER } TARGET={ TARGET_TEMP }
        M117 Heating {_HEATER} {TARGET_TEMP} then {DURATION/60}m soak time, currrent temp {CURRENT_TEMP}

        ;; run the fan at 50% to circulate air
        M106 S{ 50 * 255 / 100 }

        ;; put the bed and nozzle where they're a safe distance apart
        {% if params._HEATER == "heater_bed" %}
            G32
            ADAPTIVE_BED_MESH
            CENTER
            SET_IDLE_TIMEOUT TIMEOUT=3600
            {% if not printer.save_variables.variables.is_voron_new %}
                M84 ;; turn off steppers
            {% endif %}
        {% else %}
            G32
            G1 X160 Y0 Z0
        {% endif %}

        UPDATE_DELAYED_GCODE ID=heat_soaker DURATION={ check_interval }

        ;; pause the print during heat soak
        BASE_PAUSE
    {% endif %}

[gcode_macro CANCEL_HEAT_SOAK]
description: cancels an in-progress HEAT_SOAK cycle
gcode:
    SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=stage VALUE="'cancel'"
    UPDATE_DELAYED_GCODE ID=heat_soaker DURATION=1

[delayed_gcode heat_soaker]
; ## debug
; { action_respond_info( printer['gcode_macro HEAT_SOAK'] | tojson )}
gcode:
    {% set heat_soak = printer['gcode_macro HEAT_SOAK'] %}

    ## update total time elapsed
    {% set total_time_elapsed = heat_soak.total_time_elapsed + heat_soak.check_interval %}
    SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=total_time_elapsed VALUE={ total_time_elapsed }

    {% set stage = heat_soak.stage %}
    {% if heat_soak.heaty == "heater_bed" %}
        {% if stage == "heating" and printer.heater_bed.temperature >= (heat_soak.target_temp - 1) %}
            {% set stage = "soaking" %}
        {% endif %}
    {% else %}
        {% if stage == "heating" and printer.extruder.temperature >= (heat_soak.target_temp - 1) %}
            {% set stage = "soaking" %}
        {% endif %}
    {% endif %}

    {% if stage == "soaking" %}
        ## update soak countdown
        {% set soak_time_remaining = [heat_soak.soak_time_remaining - heat_soak.check_interval, 0] | max %}
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=soak_time_remaining VALUE={ soak_time_remaining }

        {% if soak_time_remaining == 0 %}
            {% set stage = "done" %}
        {% endif %}
    {% endif %}

    SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=stage VALUE="'{ stage }'"

    {% if stage in ("done", "cancel") %}

        {% if stage == "cancel" %}
            {% set stage = "done" %}
            TURN_OFF_HEATERS
            M107 ; turn off fan

            ;; heat soak was cancelled -- also cancel the print
            CANCEL_PRINT
        {% else %}
            M117 { "soak complete after %.1fm" | format(total_time_elapsed / 60.0) }

            ;; heat soak is complete. resume / start the print
            BASE_RESUME
        {% endif %}

        ## reset all state vars, except stage, which may be queried via the api
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=heaty VALUE=None
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=target_temp VALUE=0
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=soak_time_remaining VALUE=0
        SET_GCODE_VARIABLE MACRO=HEAT_SOAK VARIABLE=total_time_elapsed VALUE=0

        SET_IDLE_TIMEOUT TIMEOUT={ printer.configfile.config.idle_timeout.timeout }
        SAVE_VARIABLE VARIABLE=is_printing VALUE=False

    {% else %}

        {% if total_time_elapsed % 30 == 0 %}
            ## output status periodically
            {% if stage == "heating" %}
                M117 { "heating -- %.1fm elapsed" | format(total_time_elapsed / 60.0) }
            {% elif stage == "soaking" %}
                M117 { "soaking -- %.1fm remaining" | format(soak_time_remaining / 60.0) }
            {% endif %}
        {% endif %}

        ## trigger ourselves again
        UPDATE_DELAYED_GCODE ID=heat_soaker DURATION={ heat_soak.check_interval }

        ## dwell for 1ms to prevent from going idle
        G4 P1

    {% endif %}