#!/usr/bin/env python3
"""Collect .npy files from pair1..pair168 into ./depth as 3-digit names."""
from __future__ import annotations

import shutil
from pathlib import Path


def main() -> None:
    root = Path(__file__).resolve().parent
    dest_dir = root / "depth"
    dest_dir.mkdir(exist_ok=True)

    for idx in range(1, 169):
        pair_dir = root / f"pair{idx}"
        if not pair_dir.is_dir():
            print(f"[skip] {pair_dir.name} not found")
            continue

        npy_files = list(pair_dir.glob("*.npy"))
        if not npy_files:
            print(f"[skip] no .npy in {pair_dir.name}")
            continue
        if len(npy_files) > 1:
            print(f"[warn] multiple .npy in {pair_dir.name}; using first: {npy_files[0].name}")

        source = npy_files[0]
        target = dest_dir / f"{idx:03d}.npy"

        # Move to avoid duplicates in source folders. Change to copy2 if you prefer copying.
        shutil.move(str(source), target)
        print(f"[ok] {pair_dir.name} -> {target.name}")

    print(f"Done. Files gathered in {dest_dir}")


if __name__ == "__main__":
    main()