import board
import displayio
import os
import gc
import pulseio
import random
import time
import microcontroller

import sys
sys.path.append('/Adafruit_CircuitPython_BitmapFont')
sys.path.append('/Adafruit_CircuitPython_Display_Text')
print(sys.path)

from adafruit_bitmap_font import bitmap_font
from adafruit_display_text.text_area import TextArea

backlight = pulseio.PWMOut(board.TFT_BACKLIGHT)

max_brightness = 2 ** 15

fonts = list(filter(lambda x: x.endswith("bdf") and not x.startswith("."), os.listdir("/")))
font = bitmap_font.load_font(fonts[0])

start = time.monotonic()
code_points = set()
code_points.update(range(0x30, 0x7a))
code_points.add(0x20)
font.load_glyphs(code_points)
print("pre-load time:", time.monotonic() - start)

print("fade up")
# Fade up the backlight
for b in range(100):
    backlight.duty_cycle = b * max_brightness // 100
    time.sleep(0.01)  # default (0.01)

demos = ["Hackaday", "0123456789"]

splash = displayio.Group(max_size=len(fonts) * len(demos))
board.DISPLAY.show(splash)
max_y = 0
y = 2

print("Font load {}".format(font.name))
start = time.monotonic()
area = TextArea(font, text=" Hack A Day")
print("text load time:", time.monotonic() - start)
area.y = y
splash.append(area.group)
# Wait for the image to load.
board.DISPLAY.wait_for_frame()

for i in range(1000):
    area = TextArea(font, text='Skulls: {0:<10}'.format(i))
    area.y = 200
    #area.x = 100
    if i != 0:
        splash.pop()
    splash.append(area.group)
    board.DISPLAY.wait_for_frame()
    #time.sleep(1)
    gc.collect()
    print("mem free:", gc.mem_free())

# Fade down the backlight
for b in range(50, -1, -1):
    backlight.duty_cycle = b * max_brightness // 100
    time.sleep(0.005)  # default (0.005)

print("fade down")

    # splash.pop()