"""Offline packing of neutral seated guest artwork, not game logic."""
import struct
from pathlib import Path

from PIL import Image

ROOT = Path(__file__).resolve().parents[2]


def main():
    image = Image.open(ROOT / "assets/sprites/roulette/participants-v1.png").convert("RGBA")
    assert image.size == (1536, 1024)
    frames = []
    for row in range(2):
        for col in range(3):
            frame = image.crop((col * 512, row * 512, (col + 1) * 512, (row + 1) * 512))
            frame = frame.resize((192, 192), Image.Resampling.NEAREST)
            assert frame.getpixel((0, 0))[3] == 0
            assert sum(a >= 240 for a in frame.getchannel("A").get_flattened_data()) > 8000
            frames.append(frame.tobytes("raw", "BGRA"))
    data = b"".join(frames)
    output = ROOT / "assets/animations/roulette/participants-v1.bin"
    output.write_bytes(struct.pack("<4sIIII", b"ANM1", 192, 192, 6, len(data)) + data)
    print("Packed six neutral seated guest frames for native Russian roulette")


if __name__ == "__main__":
    main()