254 lines
8.1 KiB
Python
254 lines
8.1 KiB
Python
"""团队负载告警服务。"""
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from __future__ import annotations
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from datetime import datetime, timedelta
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from typing import Optional
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from sqlalchemy import and_, func, select
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from sqlalchemy.ext.asyncio import AsyncSession
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from ..models import OperationLog, Task, User, UserProject, UserWorkload
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from ..integration_core.lark_service import lark_service
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from ..utils.timezone import now_cn_naive
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DONE_STATUSES = {"done", "completed", "closed", "resolved", "archived"}
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async def _list_alert_logs(
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db: AsyncSession,
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*,
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tenant_id: int,
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user_id: int,
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) -> list[OperationLog]:
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rows = await db.execute(
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select(OperationLog).where(
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and_(
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OperationLog.tenant_id == tenant_id,
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OperationLog.entity_type == "workload_alert",
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OperationLog.entity_id == str(user_id),
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)
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).order_by(OperationLog.created_at.desc())
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)
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return list(rows.scalars().all())
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def _latest_by_action(logs: list[OperationLog], action: str) -> Optional[OperationLog]:
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for row in logs:
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if row.action == action:
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return row
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return None
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def _is_unresolved(logs: list[OperationLog]) -> bool:
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latest_detected = _latest_by_action(logs, "overload_detected")
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if not latest_detected:
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return False
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latest_resolved = _latest_by_action(logs, "overload_resolved")
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if not latest_resolved:
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return True
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return bool(latest_detected.created_at and latest_resolved.created_at and latest_detected.created_at > latest_resolved.created_at)
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async def on_user_workload_changed(
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db: AsyncSession,
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*,
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tenant_id: int,
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user_id: int,
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workload_ratio: float,
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) -> dict:
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"""用户负载变化时触发告警/恢复。"""
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logs = await _list_alert_logs(db, tenant_id=tenant_id, user_id=user_id)
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unresolved = _is_unresolved(logs)
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if workload_ratio > 100 and not unresolved:
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text = (
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f"成员 {user_id} 负载过载：{workload_ratio:.1f}% (>100%)，"
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f"请尽快处理任务转派。"
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)
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notify_result = await lark_service.send_card_message(
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chat_id=f"tenant-{tenant_id}-workload-alert",
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content=text,
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tasks=[],
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)
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db.add(
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OperationLog(
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tenant_id=tenant_id,
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user_id=user_id,
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project_id=None,
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entity_type="workload_alert",
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entity_id=str(user_id),
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action="overload_detected",
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before_data={"unresolved": unresolved},
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after_data={
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"workload_ratio": round(workload_ratio, 2),
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"notify_channel": "feishu",
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"notify_status": notify_result.get("status"),
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},
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remark=text,
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)
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)
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return {"alerted": True, "resolved": False}
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if workload_ratio <= 100 and unresolved:
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db.add(
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OperationLog(
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tenant_id=tenant_id,
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user_id=user_id,
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project_id=None,
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entity_type="workload_alert",
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entity_id=str(user_id),
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action="overload_resolved",
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before_data={"unresolved": True},
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after_data={"workload_ratio": round(workload_ratio, 2)},
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remark="workload_back_to_normal",
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)
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)
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return {"alerted": False, "resolved": True}
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return {"alerted": False, "resolved": False}
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async def _build_transfer_suggestions(
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db: AsyncSession,
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*,
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tenant_id: int,
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user_id: int,
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max_items: int = 3,
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) -> list[dict]:
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tasks_result = await db.execute(
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select(Task).where(
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and_(
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Task.tenant_id == tenant_id,
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Task.assignee_id == user_id,
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func.lower(Task.status).notin_(DONE_STATUSES),
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)
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).order_by(Task.updated_at.desc())
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)
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tasks = list(tasks_result.scalars().all())
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if not tasks:
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return []
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suggestions: list[dict] = []
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for task in tasks:
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member_result = await db.execute(
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select(UserProject.user_id).where(
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and_(
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UserProject.tenant_id == tenant_id,
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UserProject.project_id == int(task.project_id),
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)
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)
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)
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member_ids = [int(v) for v in member_result.scalars().all() if int(v) != user_id]
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if not member_ids:
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continue
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candidate_result = await db.execute(
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select(UserWorkload.user_id, UserWorkload.workload_ratio)
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.join(User, User.id == UserWorkload.user_id)
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.where(
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and_(
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UserWorkload.tenant_id == tenant_id,
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UserWorkload.user_id.in_(member_ids),
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User.tenant_id == tenant_id,
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User.status == "active",
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User.is_active.is_(True),
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)
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)
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.order_by(UserWorkload.workload_ratio.asc())
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)
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candidates = candidate_result.all()
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if not candidates:
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continue
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target_user_id, target_ratio = candidates[0]
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suggestions.append(
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{
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"task_id": int(task.id),
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"project_id": int(task.project_id),
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"old_assignee_id": user_id,
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"new_assignee_id": int(target_user_id),
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"new_assignee_ratio": round(float(target_ratio or 0.0), 2),
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"reason": "auto_transfer_after_24h_overload",
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}
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)
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if len(suggestions) >= max_items:
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break
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return suggestions
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async def process_tenant_unresolved_overloads(
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db: AsyncSession,
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*,
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tenant_id: int,
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) -> dict:
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"""扫描租户过载并为持续 24h 未恢复的成员生成转派建议。"""
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rows = await db.execute(
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select(UserWorkload.user_id, UserWorkload.workload_ratio).join(
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User,
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and_(
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User.id == UserWorkload.user_id,
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User.tenant_id == tenant_id,
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),
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).where(
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and_(
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UserWorkload.tenant_id == tenant_id,
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User.status == "active",
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User.is_active.is_(True),
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)
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)
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)
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user_rows = rows.all()
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created = 0
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now = now_cn_naive()
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for user_id_raw, ratio_raw in user_rows:
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user_id = int(user_id_raw)
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ratio = float(ratio_raw or 0.0)
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await on_user_workload_changed(
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db,
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tenant_id=tenant_id,
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user_id=user_id,
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workload_ratio=ratio,
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)
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if ratio <= 100:
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continue
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logs = await _list_alert_logs(db, tenant_id=tenant_id, user_id=user_id)
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latest_detected = _latest_by_action(logs, "overload_detected")
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latest_resolved = _latest_by_action(logs, "overload_resolved")
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latest_suggestion = _latest_by_action(logs, "transfer_suggestion")
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if not latest_detected or not latest_detected.created_at:
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continue
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if latest_resolved and latest_resolved.created_at and latest_resolved.created_at > latest_detected.created_at:
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continue
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if now - latest_detected.created_at < timedelta(hours=24):
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continue
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if latest_suggestion and latest_suggestion.created_at and latest_suggestion.created_at > latest_detected.created_at:
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continue
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suggestions = await _build_transfer_suggestions(
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db,
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tenant_id=tenant_id,
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user_id=user_id,
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)
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if not suggestions:
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continue
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db.add(
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OperationLog(
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tenant_id=tenant_id,
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user_id=user_id,
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project_id=None,
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entity_type="workload_alert",
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entity_id=str(user_id),
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action="transfer_suggestion",
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before_data={"workload_ratio": ratio},
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after_data={"suggestions": suggestions},
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remark="overload_unresolved_24h",
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)
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)
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created += 1
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await db.commit()
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return {"suggestion_count": created, "user_count": len(user_rows)}
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