#!/usr/bin/env python3

from subprocess import run

from bdfparser import Font
from PIL import Image

font = Font("civic-segments.bdf")
print(
    f"This font's global size is "
    f"{font.headers['fbbx']} x {font.headers['fbby']} (pixel), "
    f"it contains {len(font)} glyphs."
)
chars_to_export = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
for char_str in chars_to_export:
    char = font.glyph(char_str)
    bitmap = char.draw()
    im = Image.frombytes(
        "RGBA",
        (bitmap.width(), bitmap.height()),
        bitmap.tobytes(
            "RGBA",
            bytesdict={
                0: b"\x00\x00\x00\x00",  # transparent background
                1: b"\xff\xff\xff\xff",  # white glyph
            },
        ),
    )
    output_path = f"../resources/{char_str}.png"
    im.save(output_path, "PNG")
    run(
        [
            "zopflipng",
            "-y",
            "--iterations=500",
            "--filters=01234mepb",
            "--lossy_8bit",
            "--lossy_transparent",
            output_path,
            output_path,
        ]
    )