678 lines
23 KiB
Python
678 lines
23 KiB
Python
"""任务服务 — 核心业务逻辑：接收、驳回返工、裂变转交、无限嵌套子任务"""
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from __future__ import annotations
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import uuid
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from fastapi import HTTPException, status
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy.orm import selectinload
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from app.models.task import Task, TaskRecord, TASK_STATUS_PENDING, TASK_STATUS_WIP, TASK_STATUS_COMPLETED, TASK_STATUS_REJECTED
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from app.core.time_utils import get_beijing_time
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from app.models.product import Product
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from app.models.task_log import TaskLog
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from app.schemas.task import (
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TaskCreate,
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TaskUpdate,
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TaskCompleteRequest,
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TaskRejectRequest,
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TaskTransferRequest,
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SubtaskCreate,
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TaskRecordCreate,
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TaskRecordResponse,
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TaskResponse,
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TaskCompleteResponse,
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TaskTransferResponse,
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TaskSummaryResponse,
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TaskListResponse,
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)
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# 特殊位置常量
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VIRTUAL_WAREHOUSE = "virtual_warehouse"
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# ============================================================
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# 内部辅助函数
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# ============================================================
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async def _get_task_or_404(db: AsyncSession, task_id: uuid.UUID) -> Task:
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"""获取任务，不存在则 404"""
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result = await db.execute(
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select(Task)
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.options(
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selectinload(Task.child_tasks),
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selectinload(Task.parent_task),
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selectinload(Task.product),
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selectinload(Task.records),
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)
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.where(Task.id == task_id)
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)
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task = result.scalar_one_or_none()
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if not task:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"任务不存在: {task_id}",
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)
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return task
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async def _get_task_with_children_recursive(db: AsyncSession, task_id: uuid.UUID) -> Task:
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"""递归加载任务及其所有子孙任务"""
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result = await db.execute(
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select(Task)
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.options(
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selectinload(Task.child_tasks),
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selectinload(Task.records),
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)
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.where(Task.id == task_id)
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)
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task = result.scalar_one_or_none()
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if not task:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"任务不存在: {task_id}",
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)
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# 递归加载每一层子任务
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async def _load_children(t: Task):
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for child in t.child_tasks:
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child_result = await db.execute(
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select(Task)
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.options(
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selectinload(Task.child_tasks),
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selectinload(Task.records),
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)
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.where(Task.id == child.id)
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)
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refreshed_child = child_result.scalar_one()
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t.child_tasks[t.child_tasks.index(child)] = refreshed_child
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await _load_children(refreshed_child)
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await _load_children(task)
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return task
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def _to_response(task: Task) -> TaskResponse:
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"""将 Task ORM 对象转为递归 TaskResponse"""
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return TaskResponse(
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id=task.id,
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product_id=task.product_id,
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product_sn=task.product.serial_number if task.product else "",
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product_material=task.product.material_name or task.product.material_id or "" if task.product else "",
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parent_task_id=task.parent_task_id,
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task_name=task.task_name,
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assignee_id=task.assignee_id,
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status=task.status,
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notify_parent_on_complete=task.notify_parent_on_complete,
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is_rework=task.is_rework,
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reject_reason=task.reject_reason,
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received_at=task.received_at,
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completed_at=task.completed_at,
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created_at=task.created_at,
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child_tasks=[_to_response(c) for c in task.child_tasks],
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records=[TaskRecordResponse.model_validate(r) for r in (task.records or [])],
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)
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async def _check_all_critical_children_completed(
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db: AsyncSession, task_id: uuid.UUID
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) -> tuple[bool, list[str]]:
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"""
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检查指定任务下所有 notify_parent_on_complete=True 的子任务是否都已完成。
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返回 (是否全部完成, 未完成的子任务名称列表)。
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"""
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result = await db.execute(
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select(Task).where(
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Task.parent_task_id == task_id,
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Task.notify_parent_on_complete.is_(True),
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)
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)
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critical_children = result.scalars().all()
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incomplete = [
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child.task_name
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for child in critical_children
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if child.status != TASK_STATUS_COMPLETED
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]
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return len(incomplete) == 0, incomplete
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async def _create_task_log(
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db: AsyncSession,
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task_id: uuid.UUID,
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action_type: str,
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operator_id: str | None = None,
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remark: str | None = None,
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) -> TaskLog:
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"""创建任务操作日志"""
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log = TaskLog(
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task_id=task_id,
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operator_id=operator_id,
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action_type=action_type,
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remark=remark,
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)
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db.add(log)
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return log
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# ============================================================
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# 公开 API — 查询
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# ============================================================
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async def get_task(db: AsyncSession, task_id: uuid.UUID) -> TaskResponse:
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"""获取任务详情 — 递归包含所有子任务"""
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task = await _get_task_with_children_recursive(db, task_id)
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return _to_response(task)
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async def get_top_level_tasks(db: AsyncSession, product_id: uuid.UUID) -> list[TaskSummaryResponse]:
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"""获取产品的顶层任务列表"""
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result = await db.execute(
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select(Task)
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.where(
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Task.product_id == product_id,
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Task.parent_task_id.is_(None),
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)
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.order_by(Task.created_at)
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)
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tasks = result.scalars().all()
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return [TaskSummaryResponse.model_validate(t) for t in tasks]
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async def create_task(db: AsyncSession, data: TaskCreate) -> TaskResponse:
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"""创建任务"""
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task = Task(**data.model_dump())
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db.add(task)
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await db.commit()
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await db.refresh(task)
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return _to_response(task)
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async def update_task(db: AsyncSession, task_id: uuid.UUID, data: TaskUpdate) -> TaskResponse:
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"""更新任务"""
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task = await _get_task_or_404(db, task_id)
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update_data = data.model_dump(exclude_unset=True)
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for field, value in update_data.items():
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setattr(task, field, value)
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await db.commit()
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await db.refresh(task)
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return _to_response(task)
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async def get_all_tasks(
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db: AsyncSession, product_id: uuid.UUID | None = None,
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assignee_id: str | None = None, skip: int = 0, limit: int = 50
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) -> TaskListResponse:
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"""获取任务列表，可按产品/负责人筛选"""
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stmt = select(Task).options(
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selectinload(Task.child_tasks),
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selectinload(Task.records),
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selectinload(Task.product),
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)
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if product_id:
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stmt = stmt.where(Task.product_id == product_id)
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if assignee_id:
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stmt = stmt.where(Task.assignee_id == assignee_id)
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stmt = stmt.offset(skip).limit(limit).order_by(Task.created_at.desc())
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result = await db.execute(stmt)
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tasks = result.scalars().all()
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# 构造嵌套响应时只返回顶层任务
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all_tasks = [_to_response(t) for t in tasks if t.parent_task_id is None]
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return TaskListResponse(tasks=all_tasks, total=len(all_tasks))
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# ============================================================
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# 核心业务 1：确认接收 (PENDING → WIP)
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# ============================================================
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async def receive_task(
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db: AsyncSession, task_id: uuid.UUID, operator_id: str | None = None,
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remark: str | None = None,
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) -> TaskResponse:
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"""
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操作员确认接收任务。
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校验：只有状态为 PENDING 的任务可接收。
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动作：状态改为 WIP，记录 received_at，写入 remark。
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"""
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task = await _get_task_or_404(db, task_id)
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# 权限校验：只有负责人本人可接收
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if operator_id and task.assignee_id and operator_id != task.assignee_id:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail=f"您无权操作此任务，当前任务负责人为 {task.assignee_id}",
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)
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# 校验：只有 PENDING 状态可接收
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if task.status != TASK_STATUS_PENDING:
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raise HTTPException(
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now = get_beijing_time()
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task.status = TASK_STATUS_WIP
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task.received_at = now
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if remark:
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task.remark = remark
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await _create_task_log(
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db, task_id,
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action_type="receive",
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operator_id=operator_id,
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remark=remark or f"操作员确认接收任务「{task.task_name}」",
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)
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await db.commit()
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await db.refresh(task)
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return _to_response(task)
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# ============================================================
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# 核心业务 2：品质驳回 (→ REJECTED + 返工闭环)
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# ============================================================
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async def reject_task(
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db: AsyncSession, task_id: uuid.UUID, request: TaskRejectRequest, operator_id: str | None = None
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) -> TaskResponse:
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"""
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品质驳回：将当前任务标记为 REJECTED，并自动创建返工任务给上一道工序负责人。
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防呆闭环逻辑：
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1. 将当前任务状态改为 REJECTED，记录 reject_reason 和 completed_at。
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2. 查找当前任务的父任务 (parent_task) 的负责人 (assignee_id)。
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- 若有父任务：返工任务分配给父任务的 assignee_id。
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- 若无父任务（顶层任务）：返工任务分配给当前任务自己的 assignee_id。
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3. 为该负责人新建一个完全一样的任务，但 is_rework=True，status=PENDING。
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4. 新返工任务挂在同一个 parent_task_id 下（与原任务同级）。
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"""
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task = await _get_task_or_404(db, task_id)
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# 权限校验：只有负责人本人可驳回
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if operator_id and task.assignee_id and operator_id != task.assignee_id:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail=f"您无权操作此任务，当前任务负责人为 {task.assignee_id}",
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)
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# 校验：不能重复驳回已完成/已驳回的任务
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if task.status in (TASK_STATUS_COMPLETED, TASK_STATUS_REJECTED):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail=f"任务状态为 {task.status}，无法驳回",
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)
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now = get_beijing_time()
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# --- 1. 标记当前任务为已驳回 ---
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task.status = TASK_STATUS_REJECTED
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task.reject_reason = request.reason
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task.completed_at = now
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await _create_task_log(
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db, task_id,
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action_type="reject",
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operator_id=operator_id,
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remark=f"品质驳回: {request.reason}",
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)
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# --- 2. 确定返工任务的负责人（追溯上一道工序的转交人） ---
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rework_assignee_id: str | None = None
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if task.parent_task_id:
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# 有父任务：返工给父任务的负责人（即上一环的转交人 A）
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parent_result = await db.execute(
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select(Task).where(Task.id == task.parent_task_id)
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)
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parent_task = parent_result.scalar_one_or_none()
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if parent_task:
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rework_assignee_id = parent_task.assignee_id
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if not rework_assignee_id:
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# 无父任务（顶层转交）：从任务日志追溯创建人（转交发起者 A）
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log_result = await db.execute(
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select(TaskLog).where(
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TaskLog.task_id == task_id,
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TaskLog.action_type == "create",
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).order_by(TaskLog.created_at.asc()).limit(1)
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)
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create_log = log_result.scalar_one_or_none()
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if create_log and create_log.operator_id:
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rework_assignee_id = create_log.operator_id
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if not rework_assignee_id:
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# 最后兜底：用当前任务的负责人（通常不应该走到这里）
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rework_assignee_id = task.assignee_id
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# --- 3. 创建返工任务 ---
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rework_task = Task(
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product_id=task.product_id,
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parent_task_id=task.parent_task_id, # 与原任务同级
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task_name=task.task_name,
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assignee_id=rework_assignee_id,
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status=TASK_STATUS_PENDING,
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notify_parent_on_complete=task.notify_parent_on_complete,
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is_rework=True,
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)
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db.add(rework_task)
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await db.flush()
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await _create_task_log(
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db, rework_task.id,
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action_type="create",
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operator_id=operator_id,
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remark=f"返工任务（驳回自「{task.task_name}」，原因: {request.reason}），分配给 {rework_assignee_id}",
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)
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await db.commit()
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await db.refresh(task)
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return _to_response(task)
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# ============================================================
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# 核心业务 3：完工并裂变转交 (→ COMPLETED + 裂变创建下家任务)
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# ============================================================
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async def transfer_task(
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db: AsyncSession, task_id: uuid.UUID, request: TaskTransferRequest, operator_id: str | None = None
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) -> TaskTransferResponse:
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"""
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完工并裂变转交：
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动作 1（闭环当前节点）：
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- 将当前任务状态改为 COMPLETED，记录 completed_at。
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动作 2（解析下家）：
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- 遍历 next_assignees 列表。
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- 如果包含 'virtual_warehouse'，则将 Product 的 current_location_id 设为 'virtual_warehouse'。
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- 为每一个 assignee_id（非 virtual_warehouse）新建一条 Task 记录（状态 PENDING）。
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裂变逻辑：
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- 如果 len(next_assignees) > 1：多路裂变 → 所有新任务挂到当前任务下（parent_task_id = 当前任务ID）。
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- 如果当前任务本身就是子任务（有 parent_task_id）：单路转交也挂到同一父任务下。
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- 否则（顶层单路转交）：新任务与当前任务同级（parent_task_id = None）。
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- 更新 Product 的 current_location_id 为对应的人员（非仓库）。
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"""
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task = await _get_task_or_404(db, task_id)
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# 校验：不能重复完成
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if task.status == TASK_STATUS_COMPLETED:
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raise HTTPException(
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status_code=status.HTTP_409_CONFLICT,
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detail=f"任务「{task.task_name}」已经完成（当前状态: {task.status}），请刷新页面",
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)
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# 校验：PENDING 状态不允许转交（必须先接收）
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if task.status == TASK_STATUS_PENDING:
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raise HTTPException(
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status_code=status.HTTP_409_CONFLICT,
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detail=f"任务「{task.task_name}」尚未接收（当前状态: PENDING），请先接收再转交",
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)
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# 校验：卡点逻辑 — 检查关键子任务
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all_done, incomplete_names = await _check_all_critical_children_completed(db, task_id)
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if not all_done:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail=f"请等待相关子任务完成：{', '.join(incomplete_names)}",
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)
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now = get_beijing_time()
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# --- 动作 1：闭环当前节点 ---
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task.status = TASK_STATUS_COMPLETED
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task.completed_at = now
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await _create_task_log(
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db, task_id,
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action_type="complete",
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operator_id=operator_id,
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remark=request.note or f"完成任务「{task.task_name}」，转交至下一道工序",
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)
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# --- 动作 2：解析下家 & 裂变 ---
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# 兼容新旧格式
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if request.next_tasks:
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branches = [
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(b.task_name, a)
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for b in request.next_tasks
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for a in (b.assignees or [])
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]
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else:
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branches = [
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(request.next_task_name, a)
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for a in (request.next_assignees or [])
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]
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has_warehouse = any(a == VIRTUAL_WAREHOUSE for _, a in branches)
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real_branches = [(tn, a) for tn, a in branches if a != VIRTUAL_WAREHOUSE]
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is_fission = len(real_branches) > 1 or (request.next_tasks and len(request.next_tasks) > 1)
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is_child_task = task.parent_task_id is not None
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created_tasks: list[Task] = []
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for task_name, assignee_id in real_branches:
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if is_fission:
|
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new_parent_task_id = task.id
|
||
elif is_child_task:
|
||
new_parent_task_id = task.parent_task_id
|
||
else:
|
||
new_parent_task_id = None
|
||
|
||
new_task = Task(
|
||
product_id=task.product_id,
|
||
parent_task_id=new_parent_task_id,
|
||
task_name=task_name,
|
||
assignee_id=assignee_id,
|
||
status=TASK_STATUS_PENDING,
|
||
notify_parent_on_complete=False,
|
||
is_rework=False,
|
||
remark=request.note or None,
|
||
)
|
||
db.add(new_task)
|
||
created_tasks.append(new_task)
|
||
|
||
# 批量 flush 以生成 ID
|
||
await db.flush()
|
||
|
||
for nt in created_tasks:
|
||
await _create_task_log(
|
||
db, nt.id,
|
||
action_type="create",
|
||
operator_id=operator_id,
|
||
remark=request.note or f"由任务「{task.task_name}」裂变转交创建，分配给 {nt.assignee_id}",
|
||
)
|
||
|
||
# --- 更新 Product 的 current_location_id ---
|
||
product_result = await db.execute(
|
||
select(Product).where(Product.id == task.product_id)
|
||
)
|
||
product = product_result.scalar_one_or_none()
|
||
if product:
|
||
if has_warehouse and not real_branches:
|
||
product.current_location_id = VIRTUAL_WAREHOUSE
|
||
elif real_branches:
|
||
product.current_location_id = real_branches[0][1]
|
||
|
||
await db.commit()
|
||
|
||
# --- 构建响应 ---
|
||
refreshed_task = await _get_task_with_children_recursive(db, task_id)
|
||
created_task_responses = []
|
||
for nt in created_tasks:
|
||
await db.refresh(nt)
|
||
created_task_responses.append(_to_response(nt))
|
||
|
||
assignee_list = ", ".join(real_assignees)
|
||
location_info = ""
|
||
if has_warehouse:
|
||
location_info = "，产品已入库(virtual_warehouse)"
|
||
|
||
return TaskTransferResponse(
|
||
completed_task=_to_response(refreshed_task),
|
||
created_tasks=created_task_responses,
|
||
message=(
|
||
f"任务「{task.task_name}」已完成，"
|
||
f"已创建 {len(created_tasks)} 个下一道工序任务「{request.next_task_name}」"
|
||
f"（接收人: {assignee_list}）{location_info}"
|
||
),
|
||
)
|
||
|
||
|
||
# ============================================================
|
||
# 保留兼容：旧版 complete_task（单步完成/转交）
|
||
# ============================================================
|
||
|
||
async def complete_task(
|
||
db: AsyncSession, task_id: uuid.UUID, request: TaskCompleteRequest
|
||
) -> TaskCompleteResponse:
|
||
"""
|
||
核心业务：完成任务 + 可选创建下一步任务。
|
||
|
||
逻辑：
|
||
1. 检查当前任务是否已完成（幂等）
|
||
2. 检查所有 notify_parent_on_complete=True 的子任务是否都已完成
|
||
→ 如果存在未完成的关键子任务，返回 400 错误
|
||
3. 将当前任务状态改为 completed，记录日志
|
||
4. 如果提供了 next_task_name 和 next_assignee_id，创建下一步任务
|
||
5. 返回完成结果
|
||
"""
|
||
task = await _get_task_or_404(db, task_id)
|
||
|
||
# 注入子任务数据到当前对象以便后续检查
|
||
children_result = await db.execute(
|
||
select(Task).where(Task.parent_task_id == task_id)
|
||
)
|
||
task.child_tasks = children_result.scalars().all()
|
||
|
||
# --- 1. 幂等检查 ---
|
||
if task.status == TASK_STATUS_COMPLETED:
|
||
raise HTTPException(
|
||
status_code=status.HTTP_409_CONFLICT,
|
||
detail=f"任务「{task.task_name}」已经完成，无需重复操作",
|
||
)
|
||
|
||
# --- 2. 卡点逻辑：检查关键子任务 ---
|
||
all_done, incomplete_names = await _check_all_critical_children_completed(db, task_id)
|
||
if not all_done:
|
||
raise HTTPException(
|
||
status_code=status.HTTP_400_BAD_REQUEST,
|
||
detail=f"请等待相关子任务完成：{', '.join(incomplete_names)}",
|
||
)
|
||
|
||
now = get_beijing_time()
|
||
|
||
# --- 3. 标记当前任务为已完成 ---
|
||
task.status = TASK_STATUS_COMPLETED
|
||
task.completed_at = now
|
||
await _create_task_log(
|
||
db, task_id,
|
||
action_type="complete",
|
||
operator_id=request.operator_id,
|
||
remark=request.remark or f"完成任务: {task.task_name}",
|
||
)
|
||
|
||
# --- 4. 可选：创建下一步任务（转交） ---
|
||
next_task = None
|
||
if request.next_task_name and request.next_assignee_id:
|
||
next_task = Task(
|
||
product_id=task.product_id,
|
||
parent_task_id=task.parent_task_id, # 与已完成任务同级
|
||
task_name=request.next_task_name,
|
||
assignee_id=request.next_assignee_id,
|
||
status=TASK_STATUS_PENDING,
|
||
notify_parent_on_complete=False,
|
||
)
|
||
db.add(next_task)
|
||
await db.flush()
|
||
await _create_task_log(
|
||
db, next_task.id,
|
||
action_type="create",
|
||
operator_id=request.operator_id,
|
||
remark=f"由任务「{task.task_name}」完成后转交创建",
|
||
)
|
||
|
||
await db.commit()
|
||
|
||
# --- 5. 构建响应 ---
|
||
refreshed_task = await _get_task_with_children_recursive(db, task_id)
|
||
next_task_response = None
|
||
if next_task:
|
||
await db.refresh(next_task)
|
||
next_task_response = _to_response(next_task)
|
||
|
||
return TaskCompleteResponse(
|
||
completed_task=_to_response(refreshed_task),
|
||
next_task=next_task_response,
|
||
message=f"任务「{task.task_name}」已完成"
|
||
+ (f"，已创建下一步任务「{request.next_task_name}」" if next_task else ""),
|
||
)
|
||
|
||
|
||
# ============================================================
|
||
# 子任务
|
||
# ============================================================
|
||
|
||
async def create_subtask(
|
||
db: AsyncSession, parent_task_id: uuid.UUID, data: SubtaskCreate
|
||
) -> TaskResponse:
|
||
"""
|
||
在现有任务下创建子任务 — 支持无限层级嵌套。
|
||
新子任务继承父任务的 product_id。
|
||
"""
|
||
parent = await _get_task_or_404(db, parent_task_id)
|
||
|
||
# 禁止在已完成/已驳回的任务下创建子任务
|
||
if parent.status in (TASK_STATUS_COMPLETED, TASK_STATUS_REJECTED):
|
||
raise HTTPException(
|
||
status_code=status.HTTP_400_BAD_REQUEST,
|
||
detail=f"无法在状态为 {parent.status} 的任务「{parent.task_name}」下创建子任务",
|
||
)
|
||
|
||
subtask = Task(
|
||
product_id=parent.product_id,
|
||
parent_task_id=parent_task_id,
|
||
task_name=data.task_name,
|
||
assignee_id=data.assignee_id,
|
||
status=TASK_STATUS_PENDING,
|
||
notify_parent_on_complete=data.notify_parent_on_complete,
|
||
)
|
||
db.add(subtask)
|
||
await db.commit()
|
||
await db.refresh(subtask)
|
||
|
||
await _create_task_log(
|
||
db, subtask.id,
|
||
action_type="create",
|
||
operator_id=data.assignee_id,
|
||
remark=f"创建子任务「{data.task_name}」，父任务: 「{parent.task_name}」",
|
||
)
|
||
await db.commit()
|
||
|
||
return _to_response(subtask)
|
||
|
||
|
||
# ============================================================
|
||
# 任务进度记录 — 随时备注/传图
|
||
# ============================================================
|
||
|
||
async def add_task_record(
|
||
db: AsyncSession, task_id: uuid.UUID, data: TaskRecordCreate
|
||
) -> TaskResponse:
|
||
"""追加进度记录（备注+图片），不改变任务状态"""
|
||
import json
|
||
|
||
task = await _get_task_with_children_recursive(db, task_id)
|
||
|
||
record = TaskRecord(
|
||
task_id=task_id,
|
||
remark=data.remark or None,
|
||
images=json.dumps(data.images) if data.images else None,
|
||
)
|
||
db.add(record)
|
||
await db.commit()
|
||
await db.refresh(record)
|
||
|
||
# 重新加载 task 带上新 record
|
||
return await get_task(db, task_id)
|