import display
import os

# place your nickname in a file called `nickname.txt` in card10's root
#
# rainbow generated by
#         c = colorsys.hsv_to_rgb(i / 256, 1, 1)
#         print(f"({int(c[0] * 255)}, {int(c[1] * 255)}, {int(c[2] * 255)}),")
#
# if you know a way to improve display speed using display.pixel please tell me
# via irc or phone (flaky gsm)


FILENAME = 'nickname.txt'
WIDTH = 160
HEIGHT = 80
SPEED = 5
RAINBOW = (
    (255, 0, 0),
    (255, 5, 0),
    (255, 11, 0),
    (255, 17, 0),
    (255, 23, 0),
    (255, 29, 0),
    (255, 35, 0),
    (255, 41, 0),
    (255, 47, 0),
    (255, 53, 0),
    (255, 59, 0),
    (255, 65, 0),
    (255, 71, 0),
    (255, 77, 0),
    (255, 83, 0),
    (255, 89, 0),
    (255, 95, 0),
    (255, 101, 0),
    (255, 107, 0),
    (255, 113, 0),
    (255, 119, 0),
    (255, 125, 0),
    (255, 131, 0),
    (255, 137, 0),
    (255, 143, 0),
    (255, 149, 0),
    (255, 155, 0),
    (255, 161, 0),
    (255, 167, 0),
    (255, 173, 0),
    (255, 179, 0),
    (255, 185, 0),
    (255, 191, 0),
    (255, 197, 0),
    (255, 203, 0),
    (255, 209, 0),
    (255, 215, 0),
    (255, 221, 0),
    (255, 227, 0),
    (255, 233, 0),
    (255, 239, 0),
    (255, 245, 0),
    (255, 251, 0),
    (253, 255, 0),
    (247, 255, 0),
    (241, 255, 0),
    (235, 255, 0),
    (229, 255, 0),
    (223, 255, 0),
    (217, 255, 0),
    (211, 255, 0),
    (205, 255, 0),
    (199, 255, 0),
    (193, 255, 0),
    (187, 255, 0),
    (181, 255, 0),
    (175, 255, 0),
    (169, 255, 0),
    (163, 255, 0),
    (157, 255, 0),
    (151, 255, 0),
    (145, 255, 0),
    (139, 255, 0),
    (133, 255, 0),
    (127, 255, 0),
    (121, 255, 0),
    (115, 255, 0),
    (109, 255, 0),
    (103, 255, 0),
    (97, 255, 0),
    (91, 255, 0),
    (85, 255, 0),
    (79, 255, 0),
    (73, 255, 0),
    (67, 255, 0),
    (61, 255, 0),
    (55, 255, 0),
    (49, 255, 0),
    (43, 255, 0),
    (37, 255, 0),
    (31, 255, 0),
    (25, 255, 0),
    (19, 255, 0),
    (13, 255, 0),
    (7, 255, 0),
    (1, 255, 0),
    (0, 255, 3),
    (0, 255, 9),
    (0, 255, 15),
    (0, 255, 21),
    (0, 255, 27),
    (0, 255, 33),
    (0, 255, 39),
    (0, 255, 45),
    (0, 255, 51),
    (0, 255, 57),
    (0, 255, 63),
    (0, 255, 69),
    (0, 255, 75),
    (0, 255, 81),
    (0, 255, 87),
    (0, 255, 93),
    (0, 255, 99),
    (0, 255, 105),
    (0, 255, 111),
    (0, 255, 117),
    (0, 255, 123),
    (0, 255, 129),
    (0, 255, 135),
    (0, 255, 141),
    (0, 255, 147),
    (0, 255, 153),
    (0, 255, 159),
    (0, 255, 165),
    (0, 255, 171),
    (0, 255, 177),
    (0, 255, 183),
    (0, 255, 189),
    (0, 255, 195),
    (0, 255, 201),
    (0, 255, 207),
    (0, 255, 213),
    (0, 255, 219),
    (0, 255, 225),
    (0, 255, 231),
    (0, 255, 237),
    (0, 255, 243),
    (0, 255, 249),
    (0, 255, 255),
    (0, 249, 255),
    (0, 243, 255),
    (0, 237, 255),
    (0, 231, 255),
    (0, 225, 255),
    (0, 219, 255),
    (0, 213, 255),
    (0, 207, 255),
    (0, 201, 255),
    (0, 195, 255),
    (0, 189, 255),
    (0, 183, 255),
    (0, 177, 255),
    (0, 171, 255),
    (0, 165, 255),
    (0, 159, 255),
    (0, 153, 255),
    (0, 147, 255),
    (0, 141, 255),
    (0, 135, 255),
    (0, 129, 255),
    (0, 123, 255),
    (0, 117, 255),
    (0, 111, 255),
    (0, 105, 255),
    (0, 99, 255),
    (0, 93, 255),
    (0, 87, 255),
    (0, 81, 255),
    (0, 75, 255),
    (0, 69, 255),
    (0, 63, 255),
    (0, 57, 255),
    (0, 51, 255),
    (0, 45, 255),
    (0, 39, 255),
    (0, 33, 255),
    (0, 27, 255),
    (0, 21, 255),
    (0, 15, 255),
    (0, 9, 255),
    (0, 3, 255),
    (1, 0, 255),
    (7, 0, 255),
    (13, 0, 255),
    (19, 0, 255),
    (25, 0, 255),
    (31, 0, 255),
    (37, 0, 255),
    (43, 0, 255),
    (49, 0, 255),
    (55, 0, 255),
    (61, 0, 255),
    (67, 0, 255),
    (73, 0, 255),
    (79, 0, 255),
    (85, 0, 255),
    (91, 0, 255),
    (97, 0, 255),
    (103, 0, 255),
    (109, 0, 255),
    (115, 0, 255),
    (121, 0, 255),
    (127, 0, 255),
    (133, 0, 255),
    (139, 0, 255),
    (145, 0, 255),
    (151, 0, 255),
    (157, 0, 255),
    (163, 0, 255),
    (169, 0, 255),
    (175, 0, 255),
    (181, 0, 255),
    (187, 0, 255),
    (193, 0, 255),
    (199, 0, 255),
    (205, 0, 255),
    (211, 0, 255),
    (217, 0, 255),
    (223, 0, 255),
    (229, 0, 255),
    (235, 0, 255),
    (241, 0, 255),
    (247, 0, 255),
    (253, 0, 255),
    (255, 0, 251),
    (255, 0, 245),
    (255, 0, 239),
    (255, 0, 233),
    (255, 0, 227),
    (255, 0, 221),
    (255, 0, 215),
    (255, 0, 209),
    (255, 0, 203),
    (255, 0, 197),
    (255, 0, 191),
    (255, 0, 185),
    (255, 0, 179),
    (255, 0, 173),
    (255, 0, 167),
    (255, 0, 161),
    (255, 0, 155),
    (255, 0, 149),
    (255, 0, 143),
    (255, 0, 137),
    (255, 0, 131),
    (255, 0, 125),
    (255, 0, 119),
    (255, 0, 113),
    (255, 0, 107),
    (255, 0, 101),
    (255, 0, 95),
    (255, 0, 89),
    (255, 0, 83),
    (255, 0, 77),
    (255, 0, 71),
    (255, 0, 65),
    (255, 0, 59),
    (255, 0, 53),
    (255, 0, 47),
    (255, 0, 41),
    (255, 0, 35),
    (255, 0, 29),
    (255, 0, 23),
    (255, 0, 17),
    (255, 0, 11),
    (255, 0, 5),
)
RAINBOWLENGTH = len(RAINBOW)

def draw(disp, nick, t):
    for y in range(HEIGHT):
        for x in range(WIDTH):
            c = RAINBOW[(x + y + t) % RAINBOWLENGTH]
            disp.pixel(x=x, y=y, col=c)
    render_nick(disp, nick)
    disp.update()

def loop(nick):
    t = 0
    with display.open() as disp:
        while True:
            draw(disp, nick, t)
            t += SPEED

def render_nick(disp, nick):
    disp.print(nick, posx=80 - round(len(nick) / 2 * 14), posy=30)

def get_nick(filename=FILENAME):
    if FILENAME not in os.listdir("."):
        return "FILE ERROR"
    else:
        f = open(FILENAME, 'r')
        nick = f.read()
        f.close()
        return nick[:11]

loop(get_nick())