[gcode_macro PRINT_START]
gcode:
    
    {% set extruderTemp = params.EXTRUDER_TEMP|default(205)|int %}
    {% set bedTemp = params.BED_TEMP|default(55)|int %}
    {% set DWELL = params.DWELL|default(300)|int %}
    LIGHT_DISPLAY

    # Loading extruder and bed temperature
    M104 S{extruderTemp|float*0.75}
    M140 S{bedTemp}
    RESPOND PREFIX= MSG="Waiting for temperatures..."
    M117  Waiting for temperatures...
    #LIGHTS_ON
    M190 S{bedTemp} # Wait for bed to come to temperature
    RESPOND PREFIX= MSG="Waiting for thermal expansion..."
    M117 Waiting for thermal expansion...
    HEATSOAK DWELL={DWELL} # Dwelling
    
    # Homing and creating a mesh
    RESPOND PREFIX= MSG="Creating a mesh..."
    M117 Creating a mesh...
    G28
    BED_MESH_CALIBRATE AREA_START={params.AREA_START} AREA_END={params.AREA_END}
    M104 S{extruderTemp} # Set extruder to printing temperature
    G90
    M83
    Dock_probe
    
    # Move to prime position
    RESPOND PREFIX= MSG="Moving to prime position"
    M117 Moving to prime position

    PRIME_LINE EXTRUDER_TEMP={extruderTemp} XPAD=0 YPAD=0 LENGTH=50 PRINT_SPEED=30 TRAVEL_SPEED=200 PURGE=8 RETRACT=0.5 EXTRUSION_MULTIPLIER=1.25 PRINT_HANDLE=0 HANDLE_FAN=35 AREA_START={params.AREA_START}

[gcode_macro HEATSOAK]
gcode:
    G4 P{params.DWELL|int*1000}

[gcode_macro LIGHT_DISPLAY]
gcode:
    SET_LED LED=fysetc_mini12864 RED=.25 GREEN=0 BLUE=.25 INDEX=1 TRANSMIT=0
    SET_LED LED=fysetc_mini12864 RED=.05 GREEN=0 BLUE=.5 INDEX=2 TRANSMIT=0
    SET_LED LED=fysetc_mini12864 RED=.05 GREEN=0 BLUE=.5 INDEX=3

[gcode_macro PRIME_LINE]
description: Print an easy to remove parametric extruder priming line with a built-in handle.
gcode:
    # settings
    {% set line = {
      'x_padding'      : params.XPAD|default(0)|float,  # left/right padding around the bed the line can't print into
      'y_padding'      : params.YPAD|default(0)|float,  # top/bottom padding around the bed the line can't print into
      'area_start_x'     : params.AREA_START.split(",")[0]|default(0)|float,  # area to start the line
      'area_start_y'     : params.AREA_START.split(",")[1]|default(0)|float,  # area to start the line
      'initial_purge'  : params.PURGE|default(8)|int,   # mm of filament to purge before printing. set to 0 to disable
      'retract_after'  : params.RETRACT|default(1)|int, # mm of filament to recract after printing. set to 0 to disable
      'length'         : params.LENGTH|default(150)|int,
      'print_speed'    : params.PRINT_SPEED|default(30)|int,
      'travel_speed'   : params.TRAVEL_SPEED|default(200)|int,
      'extr_multi'     : params.EXTRUSION_MULTIPLIER|default(1.25)|float,  # apply to prime lines
      'overlap_percent': 80, # how much prime lines overlap each other
    } %}
    {% set handle = {
      'do_print'    : params.PRINT_HANDLE|default(1)|int,  # set to 0 to disable printing the handle
      'fan_percent' : params.HANDLE_FAN|default(40)|int,   # without fan the handle is too small and melty to print upright
      'width'       : 5.0,
      'height'      : 5.0,
      'move_away'   : 40   # how much to move the toolhead away from the printed handle once done. set 0 to disable
    } %}

    # sanity check and computed variables
    {% set max_x, max_y, nozzle_diameter = printer.toolhead.axis_maximum.x|float, printer.toolhead.axis_maximum.y|float, printer.configfile.config['extruder'].nozzle_diameter|float %}
    {% set _ = line.update({'width': nozzle_diameter * 1.25, 'height': nozzle_diameter / 2, 'length': [line.length, max_x - 2 * line.x_padding - 2]|min}) %}
    {% set _ = line.update({'e_per_mm': line.extr_multi * (line.width * line.height) / (3.1415 * (1.75/2)**2), 'x_start': max_x / 2 - line.length / 2, 'y_start': line.y_padding + range(0,5)|random})  %}

    SAVE_GCODE_STATE NAME=STATE_PRIME_LINE

    {% set saved_prime_line = (line.area_start_y - 40) %}
    {% if saved_prime_line < -3 %}
      {% set saved_prime_line = -3|int %}
    {% endif %}

    M117 Prime Line
    G90 # absolute positioning
    G0 X{line.area_start_x} Y{saved_prime_line} Z{line.height} F{line.travel_speed * 60} # move to starting position
    M109 S{params.EXTRUDER_TEMP|float*0.98} # Wait until 98% of extruder temp is reached, then continue  
    M104 S{params.EXTRUDER_TEMP} # Set printing extruder temp
    G91 # relative positioning
    G1 E{line.initial_purge} F{5 * 60} # extrude at ~12mm3/sec
    G0 F{line.print_speed * 60} # set print speed
    G1 X{line.length} E{line.length * line.e_per_mm} # print forward line
    G0 Y{line.width * line.overlap_percent / 100} # overlap forward line
    G1 X-{line.length / 2} E{(line.length / 2) * line.e_per_mm}  # print backward line for half the length

    # print a handle for easy removal
    {% if handle.do_print != 0 and handle.width != 0 and handle.height != 0 %}
      G0 X{line.length / 2 - handle.width} Y{handle.width / 2} F{line.travel_speed * 60} # move into position for printing handle
      G0 F{line.print_speed * 60} # set print speed
      {% set saved_fan_speed = (printer['fan'].speed * 256)|int %}
      M106 S{((handle.fan_percent / 100) * 256)|int} # set part fan to desired speed
      {% for _ in range((line.height * 1000)|int, (handle.height * 1000)|int, (line.height * 1000)|int) %} # loop however many cycles it takes to print required handle height
        G1 Y{loop.cycle(-1.0, 1.0) * handle.width} E{handle.width * line.e_per_mm} # handle layer
        G0 X-{line.width * 0.2} Z{line.height} # move up and shift the layer to make the handle sloping
      {% endfor %}
      M106 S{saved_fan_speed} # restore previous part fan speed
    {% endif %}
    
    G1 E-{line.retract_after} F{50 * 60} # retract ar 50mm/sec after printing
    G0 Y{handle.move_away} F{line.travel_speed * 60}
    M117

    RESTORE_GCODE_STATE NAME=STATE_PRIME_LINE