import board
import displayio
import terminalio
import busio
from adafruit_display_text import label
from adafruit_bitmap_font import bitmap_font
import adafruit_displayio_ssd1306
import time

#  setup screen
def setup_screen():
    global DISPLAY_WIDTH
    bigfont = bitmap_font.load_font("CompactaBdHUNormal-50.bdf")
    this = displayio.Group()
    screen_title = label.Label(terminalio.FONT, text="DUMMY", color=0xFFFFFF, x=3, y=6)
    this.append(screen_title)
    screen_main = label.Label(bigfont, text="888", color=0xFFFFFF, x=3, y=17)
    this.append(screen_main)
    screen_indicator_labels = displayio.Group(x=60, y=6)
    this.append(screen_indicator_labels)   
    screen_indicator_BPM_label = label.Label(terminalio.FONT, text="CLK IN", color=0xFFFFFF, x=0, y=0)
    screen_indicator_labels.append(screen_indicator_BPM_label)
    screen_indicator_DIV_label = label.Label(terminalio.FONT, text="CLKDIV", color=0xFFFFFF, x=0, y=10)
    screen_indicator_labels.append(screen_indicator_DIV_label)
    screen_indicator_LFO1_label = label.Label(terminalio.FONT, text="  LFO1", color=0xFFFFFF, x=0, y=20)
    screen_indicator_labels.append(screen_indicator_LFO1_label)
    screen_indicator_LFO2_label = label.Label(terminalio.FONT, text="  LFO2", color=0xFFFFFF, x=0, y=30)
    screen_indicator_labels.append(screen_indicator_LFO2_label)
    screen_indicator_CONV_label = label.Label(terminalio.FONT, text="  CONV", color=0xFFFFFF, x=0, y=40)
    screen_indicator_labels.append(screen_indicator_CONV_label)
    screen_indicator_XXX_label = label.Label(terminalio.FONT, text="   XXX", color=0xFFFFFF, x=0, y=50)
    screen_indicator_labels.append(screen_indicator_XXX_label)
    screen_indicators = displayio.Group(x=100, y=6)
    this.append(screen_indicators)
    screen_indicator_BPM = label.Label(terminalio.FONT, text="888", color=0xFFFFFF, x=0, y=0)
    screen_indicators.append(screen_indicator_BPM)
    screen_indicator_DIV = label.Label(terminalio.FONT, text="*1", color=0xFFFFFF, x=0, y=10)
    screen_indicators.append(screen_indicator_DIV)
    screen_indicator_LFO1 = label.Label(terminalio.FONT, text="888", color=0xFFFFFF, x=0, y=20)
    screen_indicators.append(screen_indicator_LFO1)
    screen_indicator_LFO2 = label.Label(terminalio.FONT, text="888", color=0xFFFFFF, x=0, y=30)
    screen_indicators.append(screen_indicator_LFO2)
    screen_indicator_CONV = label.Label(terminalio.FONT, text="888", color=0xFFFFFF, x=0, y=40)
    screen_indicators.append(screen_indicator_CONV)
    return this

def main():
 
    #  setup for STEMMA OLED
    displayio.release_displays()

    # Use for I2C
    i2c = busio.I2C(scl=board.GP21, sda=board.GP20)
    display_bus = displayio.I2CDisplay(i2c, device_address=0x3C)

    global DISPLAY_WIDTH
    DISPLAY_WIDTH = 128
    DISPLAY_HEIGHT = 64
    BORDER = 5
    
    display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=DISPLAY_WIDTH, height=DISPLAY_HEIGHT)

    #  create the displayio screen
    screen = setup_screen()
    display.show(screen)
    display.refresh()

    while True:
        time.sleep(1)


main()