#!/usr/bin/env python3

import time
import threading
import fourletterphat as flp
from queue import Queue

q = Queue()

def showbit(pos, num):
    flp.set_digit_raw(pos, num)
    flp.show()

def showstr(pos, string):
    flp.set_digit(pos, string)
    flp.show()

def load(pos, sleep_time):
    curbit = 1

    while True:
        if q.empty():
            showbit(pos, 0)
        else:
            curbit = 1 if curbit > 32 else curbit
            showbit(pos, curbit)
            curbit *= 2
            time.sleep(sleep_time)

def unixload(pos, sleep_time):
    pattern = ["|","/","-","\\"]
    while True:
        for char in pattern:
            showstr(pos, char)
            time.sleep(sleep_time)

def fillload(pos, sleep_time):
    curbit = 0

    while True:
        curbit = 0 if curbit > 63 else curbit
        showbit(pos, curbit)
        time.sleep(sleep_time)
        curbit = curbit * 2 + 1
        time.sleep(sleep_time)

def bgload(pos, sleep_time):
    t = threading.Thread(target=load, kwargs={"pos": pos, "sleep_time": sleep_time})
    t.start()
    return t

#if __name__=="__main__":
#    t1 = bgload(0, .1)
#    t2 = bgload(1, .11)
#    t3 = bgload(2, .12)
#    t4 = bgload(3, .13)