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cma-management/backend/scripts/alert_generator.py
T
Hermes CI Fix 3beec14d96 fix(alerts): enforce caliber rulings R1-R4 for alert generation
R1: exclude status=demo entities from alert traversal (alert_generator / deviation_engine / kpi_bep_deriver / alert_rules / cash engine)

R2: only generate alerts within the last 6 calendar months (incl. current)

R3: only regular month periods (YYYY-MM) participate

R4: decouple generation from push - empty notification_channels never blocks

Single source of truth: app/utils/alert_entity_scope.py
2026-09-19 10:05:11 +08:00

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"""
预警自动生成 — 管理会计OS
比对 KPI 实际值与阈值配置(threshold_green/yellow/red),超出则写入 kpi_alerts
在 daily_sync 之后运行
"""
import sys
import os
import re
import json
import logging
from typing import Optional
from datetime import datetime, timedelta
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from app.database import get_session_local
from app.models import KPIDefinition, KPIValue, KPIAlert, ActionPlan
from app.utils.threshold_parser import eval_threshold, LEVEL_PRIORITY
# 裁定2a(2026-09-17 财务口径):比率类指标统一「百分比(%)」口径(取数×100),
# 未核对/疑似单位错配的项降级待核(不落预警、不推送)
from app.utils.caliber_units import resolve_caliber
# 裁定 R1/R2/R3(2026-09-19 财务口径):账套范围(demo 排除)/ 期间窗口 / 规整月期间
from app.utils.alert_entity_scope import (
ALERT_WINDOW_MONTHS, excluded_entity_ids, is_month_period, kpi_excluded,
period_in_window, window_lower_period,
)
logger = logging.getLogger("cma.alert_gen")
#: 月期间正则 —— 只认 YYYY-MM(排除 2026-H1/H2、2025-FY 等伪期间;裁定2b)
PERIOD_REGEX = r"^[0-9]{4}-[0-9]{2}$"
_PERIOD_RE = re.compile(PERIOD_REGEX)
def resolve_latest_period(db_session, kpi_id=None):
"""「最近可用期间」(裁定2b):kpi_values 内最新 YYYY-MM,排除 H1/H2 伪期间。
给定 kpi_id → 返回**该 KPI 自己**的最近可用期间:期间口径不硬编码当月,
也不被别人(他账套/演示账套)更新的新期间带偏——实证:全局 MAX(period)=2026-09
但那是演示账套 e6 的 8 条数据,酣客(e1) 的最新可用期间是 2026-08。
实现说明:伪期间过滤在 **Python 侧**做(`SELECT DISTINCT period` 只有十几行),
不依赖 MySQL 的 `REGEXP` —— SQLite 测试库不注册 REGEXP,用 SQL 侧正则会让
单测与生产走两套语义。
"""
q = db_session.query(KPIValue.period).filter(KPIValue.actual_value.isnot(None))
if kpi_id is not None:
q = q.filter(KPIValue.kpi_id == kpi_id)
for (p,) in q.distinct().order_by(KPIValue.period.desc()).all():
if _PERIOD_RE.fullmatch(str(p or "")):
return p
return None
def _parse_threshold(expr: str) -> tuple:
"""[兼容保留] 统一委托 app.utils.threshold_parser.parse_threshold"""
from app.utils.threshold_parser import parse_threshold as _p
return _p(expr)
def cleanup_green_alerts(db_session) -> int:
"""Bug1修复: 清理历史遗留的green级别pending预警(正常值不应出现在待办)"""
greens = db_session.query(KPIAlert).filter(
KPIAlert.alert_level == "green",
KPIAlert.status.in_(["pending", "processing"]),
).all()
count = 0
for g in greens:
g.status = "resolved"
g.resolution = "自动清理: green(正常)级别不生成待处理预警"
g.resolved_at = datetime.now()
count += 1
if count:
db_session.commit()
logger.info(f" 清理历史green预警 {count} 条 → resolved")
return count
def _check_threshold(actual: float, threshold_expr: str, level: str) -> tuple:
"""检查实际值是否触发阈值,返回 (触发, 消息)(统一走 app.utils.threshold_parser)"""
if not threshold_expr or actual is None:
return False, ""
if not eval_threshold(actual, threshold_expr):
return False, ""
msg = (f"KPI当前值 {actual:.2f},触发{ {'green': '正常', 'yellow': '预警', 'red': '紧急'}.get(level, level) }阈值 "
f"({threshold_expr})")
return True, msg
def run_alert_check(db_session, period: Optional[str] = None, dry_run: bool = False,
stats: Optional[dict] = None, now: Optional[datetime] = None) -> int:
"""检查所有KPI的实际值是否触发预警,返回(将)新生成的预警数
2026-09-17 财务口径裁定 2a/2b:
· **期间(2b)**:period=None → 每个 KPI 回落「最近可用期间」(自己的最新 YYYY-MM,
排除 H1/H2 伪期间),不再硬编码当月(当月无值 → 永久 0 新预警);
· **单位(2a)**:判定前经 resolve_caliber() 归一到「百分比(%)」口径(取数×100,
与阈值 150/80 同量纲);**未核对/疑似单位错配**的项降级待核 → 不落预警、不推送;
· dry_run=True → 只计算不写库(抽查复核与放行前证据用)。
2026-09-19 财务口径裁定 R1/R2/R3(`alert_entity_scope` 单一事实源):
· **R1 账套**:`status='demo'` 的账套(演示账套)不参与遍历 → 跳过并计
`skipped_demo_kpis`;
· **R2 期间窗口**:仅生成「当月往前 6 个自然月(含当月)」内的预警;更早期间跳过
(`out_of_window`),与 2b 叠加 = max(各 KPI 最近可用期间, 当月-6月);
· **R3 伪期间**:仅规整月期间 YYYY-MM 参与,H1/H2/FY 跳过(`skipped_pseudo_period`)。
· now 参数仅用于口径复算/测试(缺省=系统当前时间)。
"""
st = stats if stats is not None else {}
window_lower = window_lower_period(now)
excluded_eids = excluded_entity_ids(db_session)
for k, v in (("period_source", "fixed" if period else "per_kpi_latest"), ("period_fixed", period),
("periods_used", {}), ("normalized", 0), ("normalized_kpis", []),
("dimension_suspect", 0), ("suspect_kpis", []), ("no_period", 0),
("no_value", 0), ("planned", []), ("skipped_existing", 0),
# R1/R2/R3 口径证据
("excluded_demo_entities", sorted(excluded_eids)),
("window_lower_period", window_lower),
("window_months", ALERT_WINDOW_MONTHS),
("skipped_demo_kpis", 0), ("demo_kpis", []),
("skipped_pseudo_period", 0), ("pseudo_period_kpis", []),
("out_of_window", 0), ("out_of_window_kpis", [])):
st.setdefault(k, v)
kpis = db_session.query(KPIDefinition).filter(
KPIDefinition.status == "active"
).all()
new_count = 0
for kpi in kpis:
# R1(裁定 2026-09-19):demo 演示账套不参与预警遍历
if kpi_excluded(db_session, kpi, excluded_eids):
st["skipped_demo_kpis"] += 1
st["demo_kpis"].append("%s/e%s" % (kpi.kpi_code, kpi.entity_id or 1))
continue
# 跳过无阈值的KPI
thr = {
"red": kpi.threshold_red,
"yellow": kpi.threshold_yellow,
"green": kpi.threshold_green,
}
if not any(thr.values()):
continue
# 期间口径(裁定2b):显式指定 → 固定期间;缺省 → 该 KPI 的最近可用期间
p = period or resolve_latest_period(db_session, kpi.id)
if not p:
st["no_period"] += 1
logger.warning(f" 跳过(无可用期间): {kpi.kpi_name} 无任何 YYYY-MM 实测值")
continue
# R3(裁定 2026-09-19):仅规整月期间 YYYY-MM 参与,伪期间一律不参与
if not is_month_period(p):
st["skipped_pseudo_period"] += 1
st["pseudo_period_kpis"].append("%s[%s]" % (kpi.kpi_code, p))
logger.warning(" 跳过(伪期间 R3): %s 期间=%s 非 YYYY-MM" % (kpi.kpi_name, p))
continue
# R2(裁定 2026-09-19):期间窗口 = 当月往前 6 个自然月(含当月),更早不新生成
if str(p) < window_lower:
st["out_of_window"] += 1
st["out_of_window_kpis"].append("%s[%s]" % (kpi.kpi_code, p))
logger.info(" 跳过(期间超出窗口 R2,窗口下限 %s): %s[%s]" % (
window_lower, kpi.kpi_name, p))
continue
# 获取该KPI该期间的最新值
latest = db_session.query(KPIValue).filter(
KPIValue.kpi_id == kpi.id,
KPIValue.period == p,
).order_by(KPIValue.calculated_at.desc()).first()
if not latest or latest.actual_value is None:
st["no_value"] += 1
continue
# 单位口径(裁定2a):取数归一 + 疑似错配降级门
cal = resolve_caliber(latest.actual_value, kpi)
if cal["status"] == "dimension_suspect":
st["dimension_suspect"] += 1
st["suspect_kpis"].append("%s[%s] actual=%s unit=%s" % (
kpi.kpi_code, p, latest.actual_value, kpi.unit))
logger.warning(" [降级待核·疑似单位错配→不落预警不推送] %s[%s] 实测=%s 单位=%s ← %s" % (
kpi.kpi_name, p, latest.actual_value, kpi.unit, cal["reason"]))
continue
actual = cal["value"]
if cal["status"] == "normalized":
st["normalized"] += 1
st["normalized_kpis"].append("%s[%s] %s → %s(×%s)" % (
kpi.kpi_code, p, latest.actual_value, actual, cal["factor"]))
st["periods_used"][p] = st["periods_used"].get(p, 0) + 1
# 判定顺序:红灯优先 → 绿灯 → 黄灯(最严重者优先,消除宽黄灯遮蔽红灯)
# 2026-09-11 修复「黄灯遮蔽红灯」:原顺序 绿→黄→红命中即止,宽黄灯(如 Y='>76')
# 会让红灯(如 R='>91')永远不可达(id=6 实测值 95 被判黄);
# green 先于 yellow:green 是主条件,yellow 是更宽的兜底带(id=1 G='>=800' Y='>=700')。
# Bug1修复: green(正常)不生成pending预警,只对yellow/red落库
for level in LEVEL_PRIORITY:
expr = thr[level]
if not expr:
continue
triggered, msg = _check_threshold(actual, expr, level)
if triggered:
if level == "green":
# 正常状态:不生成待处理预警(如有旧的red/yellow预警自动解除)
break
if cal.get("note"):
msg = "%s|%s" % (msg, cal["note"])
# 检查是否已有该期间该KPI同级别的预警
existing = db_session.query(KPIAlert).filter(
KPIAlert.kpi_id == kpi.id,
KPIAlert.kpi_value_id == latest.id,
KPIAlert.alert_level == level,
).first()
if existing:
# 已有预警,跳过
st["skipped_existing"] += 1
break
st["planned"].append({
"kpi": "%s/%s" % (kpi.kpi_code, kpi.kpi_name), "period": p,
"actual": actual, "raw_actual": latest.actual_value, "factor": cal["factor"],
"level": level, "message": msg,
})
if dry_run:
new_count += 1
break
# 创建新预警
alert = KPIAlert(
entity_id=kpi.entity_id or 1, # 2026-09-13 F1: 显式写归属
kpi_id=kpi.id,
kpi_value_id=latest.id,
alert_level=level,
alert_message=f"{kpi.kpi_name}[{p}] {msg}",
status="pending",
)
db_session.add(alert)
db_session.flush() # 获取alert.id
new_count += 1
logger.info(f" 新增预警 [{level}] {kpi.kpi_name}: {msg}")
# Bug2修复: red/yellow预警自动创建行动计划(预警→行动闭环)
if level in ("red", "yellow"):
plan_title = f"改善: {kpi.kpi_name} {msg}"
if kpi.kpi_name and "现金" in kpi.kpi_name or kpi.kpi_code == "F_OP_CFLOW":
plan_title = f"资金缺口应对: {msg} —— 催收应收+安排融资"
elif kpi.kpi_code == "F_AR_DAYS":
plan_title = f"应收催收: {msg} —— 逾期客户专项跟进"
elif kpi.kpi_code == "C_REBATE_RATE":
plan_title = f"渠补谈判: {msg} —— 下游渠道返利谈判"
elif kpi.kpi_code == "F_COST_RATIO":
plan_title = f"费用压缩: {msg} —— 管理费削减计划"
plan = ActionPlan(
alert_id=alert.id,
kpi_id=kpi.id,
title=plan_title,
assignee="财务部",
priority="high" if level == "red" else "medium",
due_date=datetime.now().date() + timedelta(days=3 if level == "red" else 7),
created_by="alert_generator",
)
db_session.add(plan)
db_session.flush()
alert.action_plan_linked_id = plan.id
logger.info(f" ↳ 自动创建行动计划 #{plan.id}: {plan_title}")
break # 只取最高级别
elif level == "red" and not triggered:
# 红没触发(判定顺序中 red 最先)→ 若该期间该KPI已有 pending/processing 红灯,
# 说明当前值已不再触发红色阈值,自动解除(保留原有自动降级行为)
existing_red = db_session.query(KPIAlert).filter(
KPIAlert.kpi_id == kpi.id,
KPIAlert.kpi_value_id == latest.id,
KPIAlert.alert_level == "red",
KPIAlert.status.in_(["pending", "processing"]),
).first()
if existing_red and not dry_run:
existing_red.status = "resolved"
existing_red.resolution = "自动解除: 当前值不再触发红色阈值"
existing_red.resolved_at = datetime.now()
logger.info(f" 自动解除预警 [red] {kpi.kpi_name}")
if dry_run:
db_session.rollback() # 抽查复核/放行前证据:确保零写入
return new_count
db_session.commit()
return new_count
def run_rule_engine_checks(db_session) -> dict:
"""预警规则引擎(rule_type 驱动)— 预测偏差 + 客户集中度(P2 2026-09-10)
复用 alert_rules 的检查端点实现(FastAPI 路由函数=带 Depends 默认值的普通函数,
显式传参即可复用,零逻辑复制),按存在规则的账套逐个执行。
任何单点失败只记录日志,不影响静态阈值主流程。
"""
from app.api.alert_rules import (
AlertRule, run_forecast_deviation_check, run_customer_concentration_check,
)
stats = {"forecast_deviation": 0, "customer_concentration": 0,
"skipped_demo_entities": 0, "excluded_entities": sorted(excluded_entity_ids(db_session))}
try:
rows = db_session.query(AlertRule.entity_id).filter(
AlertRule.enabled == 1,
AlertRule.rule_type.in_(("forecast_deviation", "customer_concentration")),
).distinct().all()
except Exception as e:
logger.error(f"规则引擎检查跳过(规则查询失败): {e}")
return stats
for (eid,) in rows:
# R1(裁定 2026-09-19):demo 演示账套不参与预警遍历
if int(eid or 1) in set(stats["excluded_entities"]):
stats["skipped_demo_entities"] += 1
logger.info(f" 规则引擎跳过(demo 账套 R1): entity={eid}")
continue
for key, fn in (("forecast_deviation", run_forecast_deviation_check),
("customer_concentration", run_customer_concentration_check)):
try:
r = fn(db=db_session, entity_id=eid)
n = int(r.get("generated", 0) or 0)
stats[key] += n
if n:
logger.info(f" 规则预警 entity={eid} {key}: {n}条")
except Exception as e:
logger.error(f"规则检查失败 entity={eid} {key}: {e}")
return stats
def _enabled_channel_count(db_session) -> int:
"""R4(裁定 2026-09-19):推送出口计数 —— 生成/推送解耦,空通道只记录不报错。"""
from app.models import NotificationChannel
try:
return int(db_session.query(NotificationChannel).filter(
NotificationChannel.enabled == True # noqa: E712 - 与其他调用点一致
).count())
except Exception as e: # pragma: no cover - 防御分支
logger.warning(f"读取通知渠道失败(按无渠道处理): {e}")
return 0
def generate_and_push(db_session, period: Optional[str] = None, dry_run: bool = False,
now: Optional[datetime] = None) -> dict:
"""生成预警并推送,返回统计
2026-09-17 财务口径裁定 2a/2b:
· **period=None** → 判定期间 = 各 KPI「最近可用期间」(裁定2b,不再硬编码当月);
显式给出 period → 固定该期间(抽查复核用);
· **dry_run=True** → 零写入、零推送:返回将生成的预警清单与口径证据(放行前抽查复核)。
2026-09-19 裁定 R1–R4:
· R1/R2/R3 在 run_alert_check 内落地(demo 账套排除 / 期间窗口 / 规整月期间);
· **R4 生成与推送解耦**:`notification_channels` 为空时仅入库、不报错、不阻断;
"""
cur_month = (now or datetime.now()).strftime("%Y-%m")
st = {}
logger.info("开始预警检查(当月=%s;判定期间=%s;窗口下限=%s;排除账套=%s)..." % (
cur_month, ("固定 %s" % period) if period else "各 KPI 最近可用期间(裁定2b)",
window_lower_period(now), sorted(excluded_entity_ids(db_session))))
# 0. Bug1修复: 先清理历史green预警(dry-run 不写)
cleaned = 0 if dry_run else cleanup_green_alerts(db_session)
# 1. 生成预警(期间口径 + 单位口径均在此落地)
new_count = run_alert_check(db_session, period=period, dry_run=dry_run, stats=st, now=now)
logger.info(f"预警检查完成: {'将新增' if dry_run else '新增'} {new_count} 条")
# 1a. 覆盖度自检(2026-09-16 项3;2026-09-17 裁定2b 过渡期保留并扩展「期间回落」明细):
# 若**当月**无任何 KPIValue,「0 条新预警」并不代表"确无阈值触发",而是"当月无数据";
# 裁定2b 起改为按各 KPI 最近可用期间判定,故此处显式记录回落后的期间分布。
coverage = {"current_month": cur_month, "periods_used": st.get("periods_used", {})}
try:
kpis_with_values = 0
active_kpis = db_session.query(KPIDefinition).filter(KPIDefinition.status == "active").all()
for k in active_kpis:
if not any((k.threshold_red, k.threshold_yellow, k.threshold_green)):
continue
hit = db_session.query(KPIValue).filter(
KPIValue.kpi_id == k.id, KPIValue.period == cur_month,
KPIValue.actual_value.isnot(None),
).first()
if hit:
kpis_with_values += 1
coverage["kpis_with_threshold_and_value"] = kpis_with_values
coverage["period"] = cur_month
if kpis_with_values == 0:
coverage["latest_period_in_db"] = resolve_latest_period(db_session)
logger.warning(
"覆盖度告警: 当月(%s)无任何 KPI 实际值 → 本次按「最近可用期间」判定(期间分布 %s);"
"「0 条新预警」= 当月无数据可判,非「确无阈值触发」。库内最新月期间=%s" % (
cur_month, st.get("periods_used"), coverage["latest_period_in_db"]))
except Exception as e:
logger.error(f"覆盖度自检失败: {e}")
coverage = {"error": str(e)}
# 1b. 规则引擎检查(预测偏差 / 客户集中度,P2 2026-09-10;dry-run 不写)
rule_stats = {"forecast_deviation": 0, "customer_concentration": 0} if dry_run \
else run_rule_engine_checks(db_session)
# 2. 推送(dry-run 零推送)
# R4(裁定 2026-09-19):生成与推送解耦 —— notification_channels 为空时
# **仅入库、不报错、不阻断**(推送出口缺失只是"未触达",不等于"未生成")。
channels_enabled = _enabled_channel_count(db_session)
push_skipped_no_channel = channels_enabled == 0
pushed = 0
if new_count > 0 and not dry_run:
if push_skipped_no_channel:
logger.info("推送出口缺失(notification_channels 启用数=0)→ 仅入库、不推送、不阻断(裁定 R4)")
else:
try:
from app.utils.notifier import push_pending_alerts
pushed = push_pending_alerts(db_session)
logger.info(f"推送完成: {pushed} 条")
except Exception as e:
logger.error(f"推送失败(不影响已入库预警,生成/推送解耦 R4): {e}")
return {"period": cur_month, "dry_run": dry_run,
"period_source": st.get("period_source"), "period_fixed": st.get("period_fixed"),
"periods_used": st.get("periods_used", {}),
"new_alerts": new_count, "pushed": pushed,
# R4:推送出口(生成/推送解耦证据)
"channels_enabled": channels_enabled,
"push_skipped_no_channel": push_skipped_no_channel,
"cleaned_green": cleaned, "rule_engine": rule_stats,
"coverage": coverage,
# 裁定2a 口径证据
"normalized": st.get("normalized", 0), "normalized_kpis": st.get("normalized_kpis", []),
"dimension_suspect": st.get("dimension_suspect", 0), "suspect_kpis": st.get("suspect_kpis", []),
# 期间/取值覆盖明细
"no_period": st.get("no_period", 0), "no_value": st.get("no_value", 0),
"skipped_existing": st.get("skipped_existing", 0), "planned": st.get("planned", []),
# 裁定 R1/R2/R3 口径证据
"excluded_demo_entities": st.get("excluded_demo_entities", []),
"skipped_demo_kpis": st.get("skipped_demo_kpis", 0),
"window_lower_period": st.get("window_lower_period"), "window_months": st.get("window_months"),
"out_of_window": st.get("out_of_window", 0), "out_of_window_kpis": st.get("out_of_window_kpis", []),
"skipped_pseudo_period": st.get("skipped_pseudo_period", 0),
"pseudo_period_kpis": st.get("pseudo_period_kpis", [])}
def coverage_note(result: dict) -> str:
"""汇总行追加提示:期间口径回落后显式说明「0 条 = 无数据可判」而非「确无触发」
2026-09-16 新增(项3);2026-09-17 裁定2b 起追加「期间回落」明细。
"""
cov = result.get("coverage") or {}
parts = []
used = result.get("periods_used") or cov.get("periods_used") or {}
if used and cov.get("current_month") not in used:
parts.append(" | 期间回落(裁定2b): 当月(%s)无 KPI 值 → 按各 KPI 最近可用期间判定 %s"
% (cov.get("current_month"), used))
if cov.get("kpis_with_threshold_and_value") == 0:
parts.append(" | ⚠️ 当月(%s)无KPI值: 本次检查按最近可用期间判定(库内最新月期间 %s)→ 0 条不等于确无触发"
% (cov.get("current_month"), cov.get("latest_period_in_db")))
if result.get("dimension_suspect"):
parts.append(" | ⛔ 降级待核(疑似单位错配,不推送) %s 项: %s"
% (result["dimension_suspect"], (result.get("suspect_kpis") or [])[:3]))
if result.get("normalized"):
parts.append(" | 口径归一 ×100 %s 项" % result["normalized"])
# 裁定 R1/R2/R3/R4(2026-09-19)证据
if result.get("skipped_demo_kpis"):
parts.append(" | R1 排除 demo 账套 %s(跳过 KPI %s 项)"
% (result.get("excluded_demo_entities"), result["skipped_demo_kpis"]))
if result.get("out_of_window"):
parts.append(" | R2 窗口(下限 %s)外不新生成 %s 项"
% (result.get("window_lower_period"), result["out_of_window"]))
if result.get("skipped_pseudo_period"):
parts.append(" | R3 伪期间跳过 %s 项" % result["skipped_pseudo_period"])
if result.get("push_skipped_no_channel"):
parts.append(" | R4 推送出口缺失(启用渠道 %s) → 仅入库、不阻断"
% result.get("channels_enabled"))
return "".join(parts)
if __name__ == "__main__":
import argparse
ap = argparse.ArgumentParser(description="预警生成与推送(2026-09-17 口径裁定 2a/2b)")
ap.add_argument("--dry-run", action="store_true", help="只计算不写库不推送(抽查复核/放行前证据)")
ap.add_argument("--period", default=None, help="固定判定期间 YYYY-MM(缺省=各 KPI 最近可用期间,裁定2b)")
ap.add_argument("--json", action="store_true", help="JSON 输出完整证据(含将生成的预警清单)")
args = ap.parse_args()
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
)
db = get_session_local()()
try:
result = generate_and_push(db, period=args.period, dry_run=args.dry_run)
if args.json:
print(json.dumps(result, ensure_ascii=False, indent=1, default=str))
else:
print(f"预警检查{'(dry-run 零写入零推送)' if args.dry_run else ''}: "
f"{result['new_alerts']}条新预警 / {result['pushed']}条已推送"
f" / 规则引擎{result['rule_engine']}{coverage_note(result)}")
finally:
db.close()