#Created By: Justin Healy and Vin Presciutti || 2021
#Based off of work done by 2020 Melissa LeBlanc-Williams, written for Adafruit Industries, MIT
#!/usr/bin/python3

import board
import neopixel
from PIL import Image
from adafruit_pixel_framebuf import PixelFramebuffer
import time
import argparse

 
gpio_pin = board.D18

pixel_width = 8
scroll_width = pixel_width + 1
pixel_height = 16
scroll_height = pixel_height + 1

pixel_max = pixel_width * pixel_height - 1

led_message = "Jaki is the love of my life"

# Main program logic follows:
if __name__ == '__main__':
    # Process arguments
    parser = argparse.ArgumentParser()
    parser.add_argument('-c', '--clear', action='store_true', help='clear the display on exit')
    args = parser.parse_args()

    # Create NeoPixel object with appropriate configuration.
    neo_pixel = neopixel.NeoPixel(gpio_pin, pixel_width * pixel_height, brightness=0.1, auto_write=False)
    #Create PixelFramebuffer object with appropriate configuration.
    pixel_framebuf = PixelFramebuffer(neo_pixel, pixel_width, pixel_height, reverse_x=True,alternating=True)

    print ('Press Ctrl-C to quit.')
    if not args.clear:
        print('Use "-c" argument to clear LEDs on exit')

    try:

        while True:
            led_message_len = len(led_message)
            led_message_scroll_height = led_message_len * 16
            

            for led_scroll in range(0, led_message_scroll_height , 1):
                led_char_counter = 1
                pixel_framebuf.fill(0x000000)
               # pixel_framebuf.display()
                
                for led_char in led_message:
                    
                    led_char_spacing = 8 * led_char_counter
                    led_char_pos = pixel_height - led_scroll + led_char_spacing
                    pixel_framebuf.text(led_char, 0, led_char_pos , 0x00FF00)
                    led_char_counter += 1

                pixel_framebuf.display()
                time.sleep(25/500)
    except KeyboardInterrupt:
        if args.clear:
            neo_pixel.deinit()