143 lines
8.8 KiB
Python
143 lines
8.8 KiB
Python
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# ============================================================
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# 知识资产库（moduleId: knowledge-assets, 可重生 ✅, 黄金测试 tests/golden/test_m3_knowledge.py）
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# plan.md §8.1：四类资产（算法知识/企业 SOP/历史案例/工艺知识），
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# 版本化 + 入库审批标记 + 检索强制带出处。
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# M3 形态：单文件 JSON + 种子资产；接口稳定，后续可换向量库不改调用方。
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# ============================================================
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from __future__ import annotations # 前向类型引用
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import json # 序列化
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import os # 路径
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import tempfile # 原子写
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import threading # 互斥
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import uuid # 资产 ID
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from datetime import datetime # 时间戳
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from typing import Any # 类型标注
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from server.timeutil import fmt_dt # 时间格式化
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# 存储路径（与世界状态同目录）
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_PATH_ENV = "APS_KNOWLEDGE_PATH"
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def _seed_assets() -> list[dict[str, Any]]:
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"""种子知识资产（演示语料；真实项目由导入管线 §8.4 入库）。"""
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now = fmt_dt(datetime.now()) # 统一时间戳
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def asset(kind: str, title: str, content: str, tags: list[str]) -> dict[str, Any]:
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return { # 资产结构（DatasetAsset 的知识侧近亲）
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"assetId": uuid.uuid4().hex[:10], # 资产 ID（@知识 引用用）
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"kind": kind, # algorithm / sop / case / process
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"title": title, # 标题（引用与出处展示）
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"content": content, # 正文（M3 单块；后续分 chunk）
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"tags": tags, # 检索加权标签
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"version": "v1", # 版本号（重复入库递增）
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"approved": True, # 审批标记（§8.1 入库需审批）
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"createdAt": now, # 入库时间
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}
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return [
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asset("sop", "换线标准SOP",
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"产线换型必须遵守：① 同产品族连续生产优先，减少换线；② 换线作业标准 30 分钟，"
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"跨产品族换线 60 分钟；③ 每日 16:00 后不安排换线（夜班技师不足）；"
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"④ 换线前必须完成上一批次尾检，未尾检不得拆线。",
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["换线", "SOP", "产品族", "夜班"]),
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asset("sop", "插单审批流程",
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"VIP 客户插单：计划员评估影响（延迟/成本）→ 主管审批 → 发布新版本。"
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"非 VIP 插单原则上排入下一个计划周期；确需插入的走例外审批，须附影响评估报告。",
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["插单", "审批", "VIP", "例外"]),
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asset("algorithm", "交期优先策略说明",
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"DELIVERY_FIRST 按交期升序 + 客户等级加权排序订单，优先保障最紧交期。"
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"适用：交付压力大、订单交期集中。代价：可能牺牲产能均衡与换线次数。"
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"参数：客户等级权重（VIP=3/重要=2/普通=1），同交期按下单时间先到先排。",
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["交期优先", "DELIVERY_FIRST", "策略", "权重"]),
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asset("algorithm", "产能均衡策略说明",
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"CAPACITY_BALANCE 以产线负荷方差最小为目标分配订单，避免忙闲不均。"
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"适用：多产线可互替、瓶颈不固定。代价：个别紧急订单可能被排后。"
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"建议与交期承诺看板联用，均衡后逐单核对交付风险。",
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["产能均衡", "CAPACITY_BALANCE", "负荷", "方差"]),
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asset("process", "产线A设备能力",
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"产线A（L001）适合小批量多品种：SMT 贴片 + 波峰焊；单班产能 400 标准件/日；"
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"维保窗口每周三 08:00-10:00 固定停机；夜班仅一班技师，复杂换型不排夜班。",
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["产线A", "L001", "产能", "维保"]),
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asset("case", "6月底比亚迪插单复盘",
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"6月28日比亚迪 VIP 插单 2000 件：采用交期优先重排，牺牲产线B均衡度 12%，"
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"全部订单按期交付。经验：VIP 插单后应立即跑一次沙盒对比，确认对存量订单影响 <5% 再发布。",
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["比亚迪", "插单", "复盘", "沙盒"]),
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]
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class KnowledgeStore:
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"""知识资产仓：加载/列出/取回/新增（单文件 JSON + 原子写；P0 读 / P1 新增）。"""
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def __init__(self, path: str | None = None) -> None:
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"""初始化：加载资产，空库自动播种。权力等级 P0（构造只读+首次播种）。"""
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self.path = path or os.environ.get(_PATH_ENV, "server/data/knowledge.json") # 存储路径
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self._lock = threading.Lock() # 并发保护
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self.assets: list[dict[str, Any]] = self._load() # 资产列表
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if not self.assets: # 空库播种
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self.assets = _seed_assets() # 种子资产
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self._write() # 落盘
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def _load(self) -> list[dict[str, Any]]:
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"""从磁盘加载；缺失/损坏返回空（触发播种）。"""
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try:
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with open(self.path, "r", encoding="utf-8") as f: # 读文件
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return json.load(f).get("assets", []) # 取资产数组
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except (FileNotFoundError, json.JSONDecodeError): # 缺失/损坏
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return []
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def _write(self) -> None:
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"""原子写盘（tmp + os.replace，与 WorldStore 同法）。"""
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os.makedirs(os.path.dirname(self.path) or ".", exist_ok=True) # 确保目录
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fd, tmp = tempfile.mkstemp(dir=os.path.dirname(self.path) or ".", suffix=".tmp") # 临时文件
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try:
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with os.fdopen(fd, "w", encoding="utf-8") as f: # 写临时文件
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json.dump({"assets": self.assets}, f, ensure_ascii=False, indent=1) # 序列化
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os.replace(tmp, self.path) # 原子替换
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except BaseException: # 失败清理
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if os.path.exists(tmp):
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os.unlink(tmp)
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raise
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def list_meta(self) -> list[dict[str, Any]]:
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"""资产元信息清单（不含正文；知识面板/命令面板数据源，P0）。"""
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return [{k: a[k] for k in ("assetId", "kind", "title", "version", "createdAt")}
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for a in self.assets]
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def get(self, asset_id: str) -> dict[str, Any] | None:
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"""按 ID 取完整资产（@知识 引用解析用，P0）。"""
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return next((a for a in self.assets if a["assetId"] == asset_id), None)
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def find_by_title(self, title: str) -> dict[str, Any] | None:
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"""按标题模糊取资产（@知识:换线标准SOP 的解析路径，P0）。"""
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t = title.strip() # 清理输入
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return next((a for a in self.assets if t and t in a["title"]), None)
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def add(self, kind: str, title: str, content: str, tags: list[str] | None = None) -> dict[str, Any]:
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"""新增资产（P1：只新增知识，不碰世界状态；报告入库走此口 §9.10 规则3）。"""
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with self._lock: # 串行化写
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existing = self.find_by_title(title) # 同名视为新版本
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version = "v1" # 默认首版
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if existing and existing["title"] == title: # 完全同名
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version = f"v{int(existing['version'].lstrip('v')) + 1}" # 版本递增
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asset = { # 组装资产
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"assetId": uuid.uuid4().hex[:10], "kind": kind, "title": title,
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"content": content, "tags": tags or [], "version": version,
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"approved": kind != "report", # 报告类默认待审（对外须人工批 §9.10 规则4）
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"createdAt": fmt_dt(datetime.now()),
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}
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self.assets.append(asset) # 入库
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self._write() # 落盘
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return asset # 返回
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# ---------------- 进程级单例 ----------------
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_store: KnowledgeStore | None = None # 单例槽
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def get_knowledge() -> KnowledgeStore:
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"""取知识库单例（gateway/workflow 共用）。"""
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global _store
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if _store is None: # 首次创建
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_store = KnowledgeStore()
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return _store
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