"""AIFlow Math Ink 0.5의 JSON-like stroke 입력 예시."""

from pathlib import Path

from PIL import Image

from aiflow_math_ink_05 import (
    build_formula_grids,
    parse_writing_events,
    render_grid_images,
)


def main() -> None:
    """필요 변수: 예제 stroke payload. 작동 원리: 수식 셀을 만들고 UTF-8 경로 아래 PNG로 저장한다."""
    events = [
        {
            "stroke_id": 0,
            "width": 3,
            "points": [{"x": 24, "y": 20}, {"x": 36, "y": 20}],
        },
        {
            "stroke_id": 1,
            "width": 3,
            "points": [{"x": 10, "y": 42}, {"x": 60, "y": 42}],
        },
        {
            "stroke_id": 2,
            "width": 3,
            "points": [{"x": 24, "y": 64}, {"x": 36, "y": 64}],
        },
    ]
    strokes = parse_writing_events(events)
    grids = build_formula_grids(strokes)
    images = render_grid_images(Image.new("RGB", (80, 90), "white"), strokes, grids)
    output_directory = Path("outputs")
    output_directory.mkdir(exist_ok=True)
    for grid, image in zip(grids, images, strict=True):
        image.save(output_directory / f"cell-{grid.index}.png")


if __name__ == "__main__":
    main()