text: """
  A macro/hotkey program for Adafruit MACROPAD. Macro setups are stored in the
  /macros folder (configurable below), load up just the ones you're likely to
  use. Plug into computer's USB port, use dial to select an application macro
  set, press MACROPAD keys to send key sequences and other USB protocols.
  """
  
  # pylint: disable=import-error, unused-import, too-few-public-methods
  
  import os
  import time
  import displayio
  import terminalio
  from adafruit_display_shapes.rect import Rect
  from adafruit_display_text import label
  from adafruit_macropad import MacroPad
  
  
  # CONFIGURABLES ------------------------
  
  MACRO_FOLDER = '/macros'
  
  
  # CLASSES AND FUNCTIONS ----------------
  
  class App:
      """ Class representing a host-side application, for which we have a set
          of macro sequences. Project code was originally more complex and
          this was helpful, but maybe it's excessive now?"""
      def __init__(self, appdata):
          self.name = appdata['name']
          self.macros = appdata['macros']
  
      def switch(self):
          """ Activate application settings; update OLED labels and LED
              colors. """
          group[13].text = self.name   # Application name
          for i in range(12):
              if i < len(self.macros): # Key in use, set label + LED color
                  macropad.pixels[i] = self.macros[i][0]
                  group[i].text = self.macros[i][1]
              else:  # Key not in use, no label or LED
                  macropad.pixels[i] = 0
                  group[i].text = ''
          macropad.keyboard.release_all()
          macropad.consumer_control.release()
          macropad.mouse.release_all()
          macropad.stop_tone()
          macropad.pixels.show()
          macropad.display.refresh()
  
  
  # INITIALIZATION -----------------------
  
  macropad = MacroPad()
  macropad.display.auto_refresh = False
  macropad.pixels.auto_write = False
  
  # Set up displayio group with all the labels
  group = displayio.Group()
  for key_index in range(12):
      x = key_index % 3
      y = key_index // 3
      group.append(label.Label(terminalio.FONT, text='', color=0xFFFFFF,
                               anchored_position=((macropad.display.width - 1) * x / 2,
                                                  macropad.display.height - 1 -
                                                  (3 - y) * 12),
                               anchor_point=(x / 2, 1.0)))
  group.append(Rect(0, 0, macropad.display.width, 12, fill=0xFFFFFF))
  group.append(label.Label(terminalio.FONT, text='', color=0x000000,
                           anchored_position=(macropad.display.width//2, -2),
                           anchor_point=(0.5, 0.0)))
  macropad.display.show(group)
  
  # Load all the macro key setups from .py files in MACRO_FOLDER
  apps = []
  files = os.listdir(MACRO_FOLDER)
  files.sort()
  for filename in files:
      if filename.endswith('.py'):
          try:
              module = __import__(MACRO_FOLDER + '/' + filename[:-3])
              apps.append(App(module.app))
          except (SyntaxError, ImportError, AttributeError, KeyError, NameError,
                  IndexError, TypeError) as err:
              pass
  
  if not apps:
      group[13].text = 'NO MACRO FILES FOUND'
      macropad.display.refresh()
      while True:
          pass
  
  last_position = None
  last_encoder_switch = macropad.encoder_switch_debounced.pressed
  app_index = 0
  apps[app_index].switch()
  
  
  # MAIN LOOP ----------------------------
  
  while True:
      # Read encoder position. If it's changed, switch apps.
      position = macropad.encoder
      if position != last_position:
          app_index = position % len(apps)
          apps[app_index].switch()
          last_position = position
  
      # Handle encoder button. If state has changed, and if there's a
      # corresponding macro, set up variables to act on this just like
      # the keypad keys, as if it were a 13th key/macro.
      macropad.encoder_switch_debounced.update()
      encoder_switch = macropad.encoder_switch_debounced.pressed
      if encoder_switch != last_encoder_switch:
          last_encoder_switch = encoder_switch
          if len(apps[app_index].macros) < 13:
              continue    # No 13th macro, just resume main loop
          key_number = 12 # else process below as 13th macro
          pressed = encoder_switch
      else:
          event = macropad.keys.events.get()
          if not event or event.key_number >= len(apps[app_index].macros):
              continue # No key events, or no corresponding macro, resume loop
          key_number = event.key_number
          pressed = event.pressed
  
      # If code reaches here, a key or the encoder button WAS pressed/released
      # and there IS a corresponding macro available for it...other situations
      # are avoided by 'continue' statements above which resume the loop.
  
      sequence = apps[app_index].macros[key_number][2]
      if pressed:
          # 'sequence' is an arbitrary-length list, each item is one of:
          # Positive integer (e.g. Keycode.KEYPAD_MINUS): key pressed
          # Negative integer: (absolute value) key released
          # Float (e.g. 0.25): delay in seconds
          # String (e.g. "Foo"): corresponding keys pressed & released
          # List []: one or more Consumer Control codes (can also do float delay)
          # Dict {}: mouse buttons/motion (might extend in future)
          if key_number < 12: # No pixel for encoder button
              macropad.pixels[key_number] = 0xFFFFFF
              macropad.pixels.show()
          for item in sequence:
              if isinstance(item, int):
                  if item >= 0:
                      macropad.keyboard.press(item)
                  else:
                      macropad.keyboard.release(-item)
              elif isinstance(item, float):
                  time.sleep(item)
              elif isinstance(item, str):
                  macropad.keyboard_layout.write(item)
              elif isinstance(item, list):
                  for code in item:
                      if isinstance(code, int):
                          macropad.consumer_control.release()
                          macropad.consumer_control.press(code)
                      if isinstance(code, float):
                          time.sleep(code)
              elif isinstance(item, dict):
                  if 'buttons' in item:
                      if item['buttons'] >= 0:
                          macropad.mouse.press(item['buttons'])
                      else:
                          macropad.mouse.release(-item['buttons'])
                  macropad.mouse.move(item['x'] if 'x' in item else 0,
                                      item['y'] if 'y' in item else 0,
                                      item['wheel'] if 'wheel' in item else 0)
                  if 'tone' in item:
                      if item['tone'] > 0:
                          macropad.stop_tone()
                          macropad.start_tone(item['tone'])
                      else:
                          macropad.stop_tone()
                  elif 'play' in item:
                      macropad.play_file(item['play'])
      else:
          # Release any still-pressed keys, consumer codes, mouse buttons
          # Keys and mouse buttons are individually released this way (rather
          # than release_all()) because pad supports multi-key rollover, e.g.
          # could have a meta key or right-mouse held down by one macro and
          # press/release keys/buttons with others. Navigate popups, etc.
          for item in sequence:
              if isinstance(item, int):
                  if item >= 0:
                      macropad.keyboard.release(item)
              elif isinstance(item, dict):
                  if 'buttons' in item:
                      if item['buttons'] >= 0:
                          macropad.mouse.release(item['buttons'])
                  elif 'tone' in item:
                      macropad.stop_tone()
          macropad.consumer_control.release()
          if key_number < 12: # No pixel for encoder button
              macropad.pixels[key_number] = apps[app_index].macros[key_number][0]
              macropad.pixels.show()