from PIL import Image, ImageDraw, ImageSequence, ImageFont
import io
import click

FIRST_NUMBER = click.prompt('Enter the low number of the range', default=10330, type=int)
LAST_NUMBER = click.prompt('Enter the high number of the range', default=10346, type=int)
FRAME_DURATION = click.prompt('How long to hold on each number', default=100, type=int)
ANIMATED_GIF_FILENAME = click.prompt('Enter the name of the animated gif to generate', default="incrementing-counter.gif", type=str)

TEXT_COLOR = (255,255,255)
TEXT_SIZE = (5,-2)
TEXT_BG_COLOR = (0,0,0)
TEXT_BG_SIZE = (115,40)

# Download: https://github.com/blaisck/sfwin/blob/master/SFPro/TrueType/SFProDisplay-Regular.ttf
fnt = ImageFont.truetype("SFProDisplay-Regular.ttf", 36)

frames = []
for count in list(range(FIRST_NUMBER, LAST_NUMBER)):
    new_img = Image.new('RGB', TEXT_BG_SIZE, TEXT_BG_COLOR)
    draw = ImageDraw.Draw(new_img)
    draw.text(TEXT_SIZE, str(count), font = fnt, fill=TEXT_COLOR)
    frames.append(new_img)

frames[0].save(ANIMATED_GIF_FILENAME, format='GIF',
               append_images=frames[1:], save_all=True, duration=FRAME_DURATION, loop=0)
print(f'Generated animated gif at ./{ANIMATED_GIF_FILENAME}')