"""Bake a synthetic nuclei image + ground-truth labels into APP_TMP_DIR."""
from __future__ import annotations

import sys

import numpy as np
import tifffile

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


def main() -> int:
    img, labels, meta = nuclei_image(H=256, W=256, n=30, seed=0)
    out = APP_TMP_DIR / "example.tif"
    tifffile.imwrite(out, img)
    np.save(APP_TMP_DIR / "example_labels.npy", labels)              # ground-truth sidecar
    register_protected(out)
    register_protected(APP_TMP_DIR / "example_labels.npy")
    print(f"wrote {out}  shape={img.shape}  nuclei={meta['n_nuclei']}")
    return 0


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