feat: B9a 演示/运维脚本——subscribe_alerts(risk:pub:alert 订阅演示/连接自检/--duration) + rebuild_alerts(按 trade_id 幂等重放: find_alerts_by_trade payload LIKE 查已入单防重复出单与重复 append, 含 aml/已处置单) + core_ro.get_trade_by_id 只读扩展 + test_demo_scripts 5 例, 201 绿; 真库手工验证(出单→幂等 skip→missing exit1; 订阅端到端 trace 贯通)后现场清理; docs 同步(TODO/MEMORY/FLOW/开发计划)

2026-09-07 00:43:25 +08:00
parent be44d569a4
commit fdf487dc32
9 changed files with 375 additions and 11 deletions
@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+"""按 trade_id 幂等重放风控引擎（B9a 补偿 · trade_gateway engine_error 场景）。
+
+背景（PRD FR-1 / 架构 §5.3）：网关 INSERT core_trade 成功后 process_trade_event
+异常时交易已成立——响应带 engine_error=true、审计 decision='risk_engine_error'，
+预警缺失。用本脚本按 trade_id 补放引擎（也可用于人工补放任何一笔已落库交易）。
+
+幂等：trade_id 已存在于任一 risk_alert.payload（含 aml 单与已处置单）即跳过，
+不重复出单、不重复 append 事件。重放以 core_trade.traded_at 为引擎事件时点，
+RISK-004 窗口判定可复现（engine.py 模块注释口径），不受脚本执行时刻影响。
+
+用法：
+  python scripts/demo/rebuild_alerts.py TRD-20260907-AB12CD34 [更多 trade_id ...]
+"""
+
+from __future__ import annotations
+
+import argparse
+import sys
+from pathlib import Path
+from typing import Any
+
+ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(ROOT))
+
+from app.repository.core_ro import CoreReadOnlyRepository  # noqa: E402
+from app.repository.risk_repository import RiskRepository  # noqa: E402
+from app.service.risk.engine import process_trade_event  # noqa: E402
+
+
+def rebuild_trade(
+    trade_id: str,
+    core: CoreReadOnlyRepository,
+    repo: RiskRepository,
+) -> dict[str, Any]:
+    """重放单笔已落库交易（CLI 与单测共用入口）。
+
+    返回 {"state": "rebuilt"|"skipped"|"missing", "trade_id", "alert_ids", ...}：
+    rebuilt 附 triggered_rules/aml_hit；skipped 附已入的预警单 alert_ids；
+    missing 表示 core_trade 无此流水（未做任何写操作）。
+    """
+    trade = core.get_trade_by_id(trade_id)
+    if trade is None:
+        return {"state": "missing", "trade_id": trade_id, "alert_ids": []}
+    existing = repo.find_alerts_by_trade(trade_id)
+    if existing:
+        return {
+            "state": "skipped",
+            "trade_id": trade_id,
+            "alert_ids": [row["alert_id"] for row in existing],
+        }
+    result = process_trade_event(trade, core_ro=core, risk_repo=repo)
+    return {
+        "state": "rebuilt",
+        "trade_id": trade_id,
+        "alert_ids": result["alert_ids"],
+        "triggered_rules": result["triggered_rules"],
+        "aml_hit": result["aml_hit"],
+    }
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="按 trade_id 幂等重放风控引擎（引擎异常补偿）")
+    parser.add_argument("trade_ids", nargs="+", help="core_trade 中的 trade_id，可一次多笔")
+    args = parser.parse_args()
+
+    core = CoreReadOnlyRepository()
+    repo = RiskRepository()
+
+    missing = 0
+    for tid in args.trade_ids:
+        out = rebuild_trade(tid, core, repo)
+        if out["state"] == "rebuilt":
+            rules = ",".join(out["triggered_rules"]) or "-"
+            print(f"[rebuilt] {tid}: rules={rules} alerts={out['alert_ids']} aml={out['aml_hit']}")
+        elif out["state"] == "skipped":
+            print(f"[skipped] {tid}: 已入预警单 {out['alert_ids']}（幂等跳过）")
+        else:
+            print(f"[missing] {tid}: core_trade 无此流水", file=sys.stderr)
+            missing += 1
+
+    if missing:
+        raise SystemExit(f"{missing}/{len(args.trade_ids)} 笔 trade_id 未找到")
+
+
+if __name__ == "__main__":
+    main()