"""
PMFlow 人员能力图谱 - 技能标签与用户技能绑定服务

- 系统预设 AI 开发技能标签初始化
- SkillTag CRUD（系统标签禁止删改）
- UserSkillBinding 批量更新与查询
- UserWorkload 自动更新
"""

from datetime import datetime, timedelta
from typing import List, Optional

from sqlalchemy import and_, func, select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import selectinload

from ...models import SkillTag, UserSkillBinding, UserWorkload, User, UserStatus, Task
from ..ai_pmo_kernel import AIPMOKernelService


# 系统预设 AI 开发专属技能标签
from ...utils.timezone import now_cn_naive
SYSTEM_SKILL_TAGS = [
    {"name": "Python", "slug": "python", "category": "language", "sort_order": 1},
    {"name": "TypeScript", "slug": "typescript", "category": "language", "sort_order": 2},
    {"name": "FastAPI", "slug": "fastapi", "category": "framework", "sort_order": 3},
    {"name": "React", "slug": "react", "category": "framework", "sort_order": 4},
    {"name": "SQLAlchemy", "slug": "sqlalchemy", "category": "framework", "sort_order": 5},
    {"name": "LangChain", "slug": "langchain", "category": "framework", "sort_order": 6},
    {"name": "LLM 调优", "slug": "llm-tuning", "category": "skill", "sort_order": 7},
    {"name": "RAG 构建", "slug": "rag", "category": "skill", "sort_order": 8},
    {"name": "向量数据库", "slug": "vector-db", "category": "tool", "sort_order": 9},
    {"name": "Ollama", "slug": "ollama", "category": "tool", "sort_order": 10},
    {"name": "Docker", "slug": "docker", "category": "tool", "sort_order": 11},
    {"name": "Git", "slug": "git", "category": "tool", "sort_order": 12},
]