"""Draws the notification (status bar) icon at ldpi/mdpi/hdpi/xhdpi, matching the launcher icon:
an amber play triangle between orange arcs, on transparent (supersampled).

The launcher icon itself is a supplied asset (res/drawable-*/ic_launcher.png, masters in art/)
and is not generated here.
"""
import os
import sys

from PIL import Image, ImageDraw

RES = sys.argv[1]
AMBER = (255, 196, 0, 255)
YELLOW = (255, 199, 20, 255)
ORANGE = (255, 128, 0, 255)


def status(size):
    # one pair of arcs: at 19-25 px two pairs crowd the triangle
    S = size * 8
    im = Image.new("RGBA", (S, S), (0, 0, 0, 0))
    d = ImageDraw.Draw(im)
    c = S / 2
    w = max(2, int(S * 0.11))
    r = S * 0.43
    box = [c - r, c - r, c + r, c + r]
    d.arc(box, 135, 225, fill=ORANGE, width=w)
    d.arc(box, -45, 45, fill=ORANGE, width=w)
    t = S * 0.24
    d.polygon([(c - t * 0.72, c - t), (c + t * 1.0, c), (c - t * 0.72, c + t)], fill=AMBER)
    return im.resize((size, size), Image.LANCZOS)


for folder, ss in (("drawable-ldpi", 19), ("drawable-mdpi", 25), ("drawable-hdpi", 38), ("drawable-xhdpi", 50)):
    os.makedirs(os.path.join(RES, folder), exist_ok=True)
    status(ss).save(os.path.join(RES, folder, "ic_stat.png"))
print("status icons written")