from __future__ import annotations

from dataclasses import dataclass, field
from pathlib import Path


@dataclass(slots=True)
class SegSampleRecord:
    """
    统一的分割样本记录格式。

    这一层只负责“索引”，不负责真正读取图像。
    """

    dataset_name: str
    image_path: Path
    mask_path: Path | None = None
    annotation_path: Path | None = None
    split: str | None = None
    sample_id: str | None = None
    class_name: str | None = None
    meta: dict[str, str] = field(default_factory=dict)


__all__ = ["SegSampleRecord"]