"""Bake a synthetic fly-arena video into APP_TMP_DIR for the example + smoke test."""
from __future__ import annotations

import sys

import tifffile

from core.io import APP_TMP_DIR, register_protected
from core.synth import fly_arena


def main() -> int:
    out = APP_TMP_DIR / "example.tif"
    frames, _, _, meta = fly_arena(T=300, H=256, W=256, n_flies=8, fps=15.0, seed=0)
    tifffile.imwrite(out, frames)
    register_protected(out)
    print(f"wrote {out}  shape={frames.shape}  flies={meta['n_flies']}")
    return 0


if __name__ == "__main__":
    sys.exit(main())