"""把 PAM 部署 Skill 文档加载为简化策略对象。"""

from __future__ import annotations

from pathlib import Path

from .constants import (
    ALLOWED_ACTIONS,
    DEFAULT_PARAMS,
    GLOBAL_ACTION_SEQUENCE,
    IP_ACTION_SEQUENCE,
    REQUIRED_PARAMS,
)
from .models import SkillPolicy


def load_skill_policy(path: str | Path) -> SkillPolicy:
    """读取 Skill markdown 头部信息，并填充 action/参数策略。"""
    skill_path = Path(path)
    text = skill_path.read_text(encoding="utf-8")
    name = "pam-auto-deply"
    description = ""

    if text.startswith("---"):
        parts = text.split("---", 2)
        if len(parts) >= 3:
            for line in parts[1].splitlines():
                if line.startswith("name:"):
                    name = line.split(":", 1)[1].strip()
                elif line.startswith("description:"):
                    description = line.split(":", 1)[1].strip()

    return SkillPolicy(
        name=name,
        source_path=str(skill_path),
        description=description,
        allowed_actions=ALLOWED_ACTIONS,
        required_params=REQUIRED_PARAMS,
        optional_params=DEFAULT_PARAMS.copy(),
        action_sequence=GLOBAL_ACTION_SEQUENCE,
        ip_action_sequence=IP_ACTION_SEQUENCE,
    )