# SPDX-FileCopyrightText: 2019 Dave Astels for Adafruit Industries
# SPDX-License-Identifier: MIT
"""Example of using save_bitmap"""
# pylint:disable=invalid-name

import adafruit_sdcard
import board
import busio
import digitalio
import storage
from displayio import Bitmap, Palette

from adafruit_bitmapsaver import save_pixels

TAKE_SCREENSHOT = False  # Set True to take a screenshot

WHITE = 0xFFFFFF
BLACK = 0x000000
RED = 0xFF0000
ORANGE = 0xFFA500
YELLOW = 0xFFFF00
GREEN = 0x00FF00
BLUE = 0x0000FF
PURPLE = 0x800080
PINK = 0xFFC0CB

colors = (BLACK, RED, ORANGE, YELLOW, GREEN, BLUE, PURPLE, WHITE)

print("Building sample bitmap and palette")
bitmap = Bitmap(16, 16, 9)
palette = Palette(len(colors))
for i, c in enumerate(colors):
    palette[i] = c

for x in range(16):
    for y in range(16):
        if x in {0, 15} or y in {0, 15}:
            bitmap[x, y] = 1
        elif x == y:
            bitmap[x, y] = 4
        elif x == 15 - y:
            bitmap[x, y] = 5
        else:
            bitmap[x, y] = 0

if TAKE_SCREENSHOT:
    # Initialize SD Card & Mount Virtual File System
    print("Setting up SD card")
    spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
    cs = digitalio.DigitalInOut(board.SD_CS)
    sdcard = adafruit_sdcard.SDCard(spi, cs)
    vfs = storage.VfsFat(sdcard)
    storage.mount(vfs, "/sd")  # /sd is root dir of SD Card

    print("Taking Screenshot... ")
    save_pixels("/sd/screenshot.bmp", bitmap, palette)
    print("Screenshot Saved")
    storage.umount(vfs)
    print("SD Card Unmounted")  # Do not remove SD card until unmounted