"""Skill 关键词触发匹配（纯函数，无 IO）。

按 ``trigger`` 逗号分隔关键词，``context_text`` 包含任一关键词（大小写不敏感）则命中。
仅 ``status=enabled`` 的 skill 参与；返回保持输入顺序。
"""

from collections.abc import Sequence


def match_skills[T](context_text: str, skills: Sequence[T]) -> list[T]:
    text = context_text.lower()
    result: list[T] = []
    for skill in skills:
        if getattr(skill, "status", "enabled") != "enabled":
            continue
        trigger = getattr(skill, "trigger", "") or ""
        keywords = [k.strip().lower() for k in trigger.split(",") if k.strip()]
        if any(kw in text for kw in keywords):
            result.append(skill)
    return result