"""SKILL.md 读取服务。

文档本身不含固定模型名，模型清单一律来自 discover_models 的实时返回。
"""

from __future__ import annotations

from datetime import datetime

from .. import config

def _read() -> str:
    if config.SKILL_PATH.is_file():
        return config.SKILL_PATH.read_text(encoding="utf-8")
    return ""


def get_skill() -> dict[str, str]:
    body = _read()
    stat = config.SKILL_PATH.stat() if config.SKILL_PATH.is_file() else None
    if stat:
        mtime = datetime.fromtimestamp(stat.st_mtime)
        updated_at = mtime.strftime("%Y-%m-%d %H:%M")
        version = mtime.strftime("%Y-%m-%d")
    else:
        updated_at = "—"
        version = "—"
    return {"version": version, "updated_at": updated_at, "body": body}