#!/usr/bin/env python3
"""CLI: image path to mili score in [0, 1]. --backbone: local directory or Hugging Face model id."""

from __future__ import annotations

import argparse
from pathlib import Path

import torch
from PIL import Image

from mili_score_inference.predict import load_model, predict_pil


def main() -> int:
    p = argparse.ArgumentParser()
    p.add_argument("--weights", type=Path, required=True)
    p.add_argument(
        "--backbone",
        type=str,
        required=True,
        help="Local checkpoint directory or Hugging Face model id",
    )
    p.add_argument("--image", type=Path, required=True)
    p.add_argument("--device", default="auto")
    args = p.parse_args()

    if args.device == "auto":
        device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    else:
        device = torch.device(args.device)

    bb = Path(args.backbone)
    if bb.is_dir():
        backbone_arg: Path | str = bb
        local_bb = True
    else:
        backbone_arg = args.backbone
        local_bb = False

    model = load_model(
        args.weights,
        backbone_arg,
        device=device,
        local_backbone=local_bb,
    )
    score = predict_pil(model, Image.open(args.image), device=device)
    print(f"score={score:.6f}")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())