448 lines
18 KiB
Python
448 lines
18 KiB
Python
"""提醒模块 Repository 层
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负责系统提醒、客户欠款、不活跃客户检测、物流超时提醒
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等相关数据的数据库查询与持久化操作。
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被 ReminderService（提醒服务）调用。
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"""
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import re
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from datetime import datetime
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from sqlalchemy import and_, func, select
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from sqlalchemy.orm import Session
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from backend.app.models.business import Customer, CustomerArrears, LogisticsTask, SalesOrder, SystemReminder
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from backend.app.models.system import User
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class ReminderRepository:
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"""提醒数据仓储
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封装系统提醒、客户欠款、不活跃客户检测、物流超时等查询。
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被 ReminderService（提醒服务）调用。
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"""
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def list_reminders(self, session: Session, filters: dict) -> list[SystemReminder]:
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"""查询系统提醒列表
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根据提醒类型、状态、接收人等条件过滤提醒记录，
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按 id 倒序返回。
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参数:
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session: 数据库会话
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filters: 过滤条件字典，支持 reminder_type / status / receiver_user_id
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返回:
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符合条件的系统提醒列表
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"""
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stmt = select(SystemReminder)
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if filters.get("reminder_type"):
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stmt = stmt.where(SystemReminder.reminder_type == filters["reminder_type"])
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if filters.get("status"):
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stmt = stmt.where(SystemReminder.status == filters["status"])
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if filters.get("receiver_user_id") is not None:
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stmt = stmt.where(SystemReminder.receiver_user_id == filters["receiver_user_id"])
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stmt = stmt.order_by(SystemReminder.id.desc())
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return list(session.execute(stmt).scalars())
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def get_reminder(self, session: Session, reminder_id: int) -> SystemReminder | None:
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"""根据 ID 查询单条系统提醒
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参数:
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session: 数据库会话
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reminder_id: 提醒记录 ID
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返回:
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对应的系统提醒对象，不存在则返回 None
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"""
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stmt = select(SystemReminder).where(SystemReminder.id == reminder_id)
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return session.execute(stmt).scalar_one_or_none()
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def get_customer(self, session: Session, customer_id: int) -> Customer | None:
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"""根据 ID 查询未删除的客户信息
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参数:
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session: 数据库会话
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customer_id: 客户 ID
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返回:
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对应的客户对象，不存在或已删除则返回 None
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"""
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stmt = select(Customer).where(Customer.id == customer_id, Customer.deleted == 0)
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return session.execute(stmt).scalar_one_or_none()
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def create_reminder(self, session: Session, payload: dict, skip_wechat: bool = False) -> SystemReminder:
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"""创建系统提醒记录
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创建提醒后，自动尝试发送微信通知（除非 skip_wechat=True）。
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优先使用服务号模板消息，降级到小程序订阅消息。
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参数:
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session: 数据库会话
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payload: 提醒数据字典，包含 reminder_type / receiver_user_id 等字段
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skip_wechat: 为 True 时跳过微信发送（由 EventBus 统一负责）
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"""
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reminder = SystemReminder(**payload)
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session.add(reminder)
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session.flush()
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if not skip_wechat:
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self._try_send_wechat_notification(session, reminder)
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return reminder
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def _try_send_wechat_notification(self, session: Session, reminder: SystemReminder) -> None:
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"""尝试发送微信通知，优先服务号模板消息，降级小程序订阅消息。
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参数:
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session: 数据库会话
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reminder: 刚创建的系统提醒对象
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"""
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import logging
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logger = logging.getLogger(__name__)
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try:
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from backend.app.models.system import User
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from sqlalchemy import select
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receiver_id = reminder.receiver_user_id
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if receiver_id <= 0:
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return
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user = session.execute(select(User).where(User.id == receiver_id)).scalar_one_or_none()
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if user is None:
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return
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extra_data = self._build_extra_data(session, reminder)
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# 优先服务号模板消息
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if user.service_open_id:
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from backend.app.services.service_account_notification_service import service_account_notification_service
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sent = service_account_notification_service.send_template_message(
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user.service_open_id,
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reminder.reminder_type,
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title=reminder.reminder_title or "",
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extra_data=extra_data,
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)
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if sent:
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logger.info("Service account reminder sent: reminder_id=%s, user_id=%s", reminder.id, receiver_id)
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return
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logger.warning(
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"Service account reminder failed: reminder_id=%s, user_id=%s, fallback_to_mini_program=%s",
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reminder.id,
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receiver_id,
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bool(user.open_id),
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)
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else:
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logger.info("User %s has no service_open_id for reminder %s", receiver_id, reminder.id)
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# 降级小程序订阅消息
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if user.open_id:
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from backend.app.services.wechat_notification_service import wechat_notification_service
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sent = wechat_notification_service.send_subscribe_message(
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user.open_id,
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reminder.reminder_type,
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extra_data=extra_data,
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)
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if sent:
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logger.info("Mini program reminder sent: reminder_id=%s, user_id=%s", reminder.id, receiver_id)
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else:
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logger.warning("Mini program reminder failed: reminder_id=%s, user_id=%s", reminder.id, receiver_id)
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return
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logger.warning(
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"Skipping WeChat reminder: reminder_id=%s, user_id=%s has no service_open_id/open_id",
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reminder.id,
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receiver_id,
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)
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except Exception as e:
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logger.warning("提醒微信通知发送失败: reminder_id=%s, error=%s", reminder.id, e)
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def _build_extra_data(self, session: Session, reminder: SystemReminder) -> dict:
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"""根据提醒类型从 title/content 中提取结构化数据，用于填充微信模板字段。
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参数:
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reminder: 系统提醒对象
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返回:
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包含模板所需字段数据的字典
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"""
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title = reminder.reminder_title or ""
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content = reminder.reminder_content or ""
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now_str = datetime.now().strftime("%Y-%m-%d %H:%M")
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order_no_match = re.search(r'[\d-]{10,}', title + content)
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order_no = order_no_match.group() if order_no_match else title
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base: dict[str, str] = {
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"order_no": order_no,
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"change_time": now_str,
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"submit_time": now_str,
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"assign_time": now_str,
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"publish_time": now_str,
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"start_time": now_str,
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"update_time": now_str,
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}
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rtype = reminder.reminder_type
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if rtype == "order_status_change":
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base["status_text"] = content[:50] if content else title
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base["remark"] = ""
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base["goods_info"] = ""
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elif rtype == "order_approval_needed":
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base["submitter"] = "业务员"
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base["task_name"] = title
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base["remark"] = "请尽快审批"
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elif rtype == "task_assigned":
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task = session.get(LogisticsTask, reminder.biz_id) if reminder.biz_type == "logistics_task" else None
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order = session.get(SalesOrder, task.order_id) if task else None
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driver = session.execute(select(User).where(User.id == task.driver_id)).scalar_one_or_none() if task else None
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base["driver_name"] = driver.real_name if driver else "司机"
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base["driver_phone"] = driver.mobile if driver and driver.mobile else "-"
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base["tracking_number"] = (task.tracking_number if task and task.tracking_number else "")
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base["order_no"] = order.order_no if order else order_no
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elif rtype == "logistics_timeout":
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order = session.get(SalesOrder, reminder.biz_id) if reminder.biz_type == "sales_order" else None
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base["tracking_number"] = order.tracking_number if order and order.tracking_number else order_no
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base["latest_location"] = content[:100] if content else ""
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base["order_no"] = order.order_no if order else order_no
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base["destination"] = order.customer_address if order and order.customer_address else ""
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elif rtype == "arrears":
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arrears = session.get(CustomerArrears, reminder.biz_id) if reminder.biz_type == "customer_arrears" else None
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customer = session.get(Customer, arrears.customer_id) if arrears else None
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order = session.get(SalesOrder, arrears.order_id) if arrears else None
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amount_match = re.search(r'([\d.]+)\s*元', content)
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base["pending_amount"] = str(float(arrears.arrears_amount or 0)) if arrears else (amount_match.group(1) if amount_match else "0")
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base["due_time"] = arrears.due_date.strftime("%Y-%m-%d 00:00") if arrears and arrears.due_date else now_str
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base["debtor_name"] = customer.customer_name if customer else ""
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base["order_no"] = order.order_no if order else order_no
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elif rtype == "inactive_customer":
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customer = session.get(Customer, reminder.biz_id) if reminder.biz_type == "customer" else None
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base["customer_name"] = customer.customer_name if customer else title.replace("沉默客户提醒 - ", "")
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base["visit_time"] = now_str
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base["contact_phone"] = customer.mobile if customer and customer.mobile else "-"
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return base
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def find_active_reminder(
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self,
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session: Session,
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reminder_type: str,
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biz_type: str,
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biz_id: int,
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receiver_user_id: int,
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) -> SystemReminder | None:
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"""查找针对同一业务对象的活跃提醒
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根据提醒类型、业务类型、业务ID和接收人，查找状态为
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pending/sent/read 的现有提醒，用于防止重复创建提醒。
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参数:
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session: 数据库会话
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reminder_type: 提醒类型
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biz_type: 业务类型（如 order / arrears 等）
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biz_id: 业务对象 ID
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receiver_user_id: 接收人用户 ID
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返回:
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匹配的活跃提醒对象，不存在则返回 None
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"""
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stmt = select(SystemReminder).where(
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SystemReminder.reminder_type == reminder_type,
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SystemReminder.biz_type == biz_type,
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SystemReminder.biz_id == biz_id,
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SystemReminder.receiver_user_id == receiver_user_id,
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SystemReminder.status.in_(["pending", "sent", "read"]),
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).limit(1)
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return session.execute(stmt).scalar_one_or_none()
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def list_overdue_arrears(self, session: Session) -> list[tuple[CustomerArrears, Customer | None, SalesOrder | None]]:
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"""查询逾期欠款列表
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联表查询状态为 pending 或 overdue 的欠款记录，
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关联客户和销售订单信息。
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参数:
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session: 数据库会话
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返回:
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(欠款记录, 客户对象, 销售订单对象) 的元组列表
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"""
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stmt = (
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select(CustomerArrears, Customer, SalesOrder)
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.outerjoin(Customer, Customer.id == CustomerArrears.customer_id)
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.outerjoin(SalesOrder, SalesOrder.id == CustomerArrears.order_id)
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.where(CustomerArrears.status.in_(["pending", "overdue"]))
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.order_by(CustomerArrears.id.asc())
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)
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return list(session.execute(stmt).all())
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def list_overdue_arrears_by_customer(
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self, session: Session
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) -> list[tuple[Customer | None, int, float, list[tuple[CustomerArrears, SalesOrder | None]]]]:
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"""按客户汇总逾期欠款
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将逾期欠款记录按客户分组，计算每个客户的累计欠款金额。
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参数:
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session: 数据库会话
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返回:
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(客户对象, 业务员ID, 累计欠款金额, [(欠款记录, 订单对象)]) 的元组列表
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"""
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from collections import defaultdict
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rows = self.list_overdue_arrears(session)
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customer_map: dict[int, dict] = defaultdict(
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lambda: {"customer": None, "salesman_id": 0, "total": 0.0, "items": []}
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)
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for arrears, customer, order in rows:
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cid = customer.id if customer else 0
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entry = customer_map[cid]
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if entry["customer"] is None:
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entry["customer"] = customer
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entry["salesman_id"] = (customer.salesman_id if customer else 0) or 0
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entry["total"] += float(arrears.arrears_amount or 0)
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entry["items"].append((arrears, order))
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return [
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(v["customer"], v["salesman_id"], v["total"], v["items"])
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for v in customer_map.values()
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]
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def get_arrears_by_order_id(self, session: Session, order_id: int) -> CustomerArrears | None:
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"""根据订单 ID 查询欠款记录
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参数:
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session: 数据库会话
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order_id: 关联的销售订单 ID
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返回:
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对应的欠款记录，不存在则返回 None
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"""
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stmt = select(CustomerArrears).where(CustomerArrears.order_id == order_id)
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return session.execute(stmt).scalar_one_or_none()
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def create_arrears(self, session: Session, payload: dict) -> CustomerArrears:
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"""创建客户欠款记录
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参数:
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session: 数据库会话
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payload: 欠款数据字典，包含 order_id / customer_id / amount 等字段
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返回:
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新创建的欠款记录对象
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"""
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arrears = CustomerArrears(**payload)
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session.add(arrears)
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session.flush()
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return arrears
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def list_inactive_customers(
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self,
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session: Session,
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inactive_before: datetime,
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) -> list[tuple[Customer, SalesOrder | None, float]]:
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"""查询不活跃客户列表
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遍历所有未删除客户，计算其累计订单金额并查找最近一笔订单。
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若最近订单时间早于或等于指定时间阈值，则视为不活跃客户。
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参数:
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session: 数据库会话
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inactive_before: 不活跃截止时间，最近订单晚于此时间的客户视为活跃
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返回:
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(客户对象, 最近订单对象, 累计订单金额) 的元组列表
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"""
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customers = list(
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session.execute(
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select(Customer)
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.where(Customer.deleted == 0)
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.order_by(Customer.id.asc())
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).scalars()
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)
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results: list[tuple[Customer, SalesOrder | None, float]] = []
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for customer in customers:
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total_amount_stmt = (
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select(func.coalesce(func.sum(SalesOrder.contract_amount), 0))
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.where(
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SalesOrder.deleted == 0,
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SalesOrder.customer_id == customer.id,
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SalesOrder.order_status != "canceled",
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)
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)
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total_amount = float(session.execute(total_amount_stmt).scalar() or 0)
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latest_order_stmt = (
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select(SalesOrder)
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.where(
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SalesOrder.deleted == 0,
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SalesOrder.customer_id == customer.id,
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SalesOrder.order_status != "canceled",
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)
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.order_by(SalesOrder.created_at.desc(), SalesOrder.id.desc())
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)
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latest_order = session.execute(latest_order_stmt).scalars().first()
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if latest_order is None or (latest_order.created_at and latest_order.created_at <= inactive_before):
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results.append((customer, latest_order, total_amount))
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return results
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def list_logistics_timeout_candidates(
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self,
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session: Session,
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timeout_before: datetime,
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) -> list[tuple[SalesOrder, str]]:
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"""查询物流超时待提醒的销售订单
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查询两种超时场景：
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- no_pickup: 任务创建超过阈值仍未揽货（pending/accepted 状态）
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- picked_stuck: 已揽货但超过阈值未送达（picked_up 状态且 updated_at 超时）
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参数:
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session: 数据库会话
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timeout_before: 超时截止时间
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返回:
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(销售订单, 超时类型) 元组列表，订单已去重
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"""
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# 场景1：未揽货超时
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stmt_no_pickup = (
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select(SalesOrder)
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.join(LogisticsTask, LogisticsTask.order_id == SalesOrder.id)
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.where(
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SalesOrder.deleted == 0,
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LogisticsTask.status.in_(["pending", "accepted"]),
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LogisticsTask.created_at <= timeout_before,
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)
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.distinct()
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.order_by(SalesOrder.id.asc())
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)
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# 场景2：已揽货但未送达超时
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stmt_picked_stuck = (
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select(SalesOrder)
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.join(LogisticsTask, LogisticsTask.order_id == SalesOrder.id)
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.where(
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SalesOrder.deleted == 0,
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LogisticsTask.status == "picked_up",
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LogisticsTask.updated_at <= timeout_before,
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)
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.distinct()
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.order_by(SalesOrder.id.asc())
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)
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results: list[tuple[SalesOrder, str]] = []
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seen_ids: set[int] = set()
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for order in session.execute(stmt_no_pickup).scalars():
|
||
if order.id not in seen_ids:
|
||
results.append((order, "no_pickup"))
|
||
seen_ids.add(order.id)
|
||
for order in session.execute(stmt_picked_stuck).scalars():
|
||
if order.id not in seen_ids:
|
||
results.append((order, "picked_stuck"))
|
||
seen_ids.add(order.id)
|
||
return results
|