feat: allocation record for pre sales order

business/pre_order_services.py

@@ -3,14 +3,60 @@ from __future__ import annotations
 from decimal import Decimal, InvalidOperation
 from typing import Any, Dict, List, Optional
 
+from django.conf import settings
 from django.db import transaction
 from django.core.exceptions import ValidationError
+from django.utils import timezone
 
 from basic_info import models as basic_info_models
 
 from . import models
 
 
+def render_pre_sales_order_created_markdown(
+    *,
+    pre_sales_order_id: str,
+    human_id: str,
+    created_at: str,
+    sender_label: str,
+    customer_name: str,
+    warehouse_name: str,
+    kind: str,
+    items_count: int,
+) -> str:
+    template = getattr(
+        settings,
+        "PRE_SALES_ORDER_CREATED_WECOM_MARKDOWN_TEMPLATE",
+        (
+            "### 预销售单创建\n"
+            "\n"
+            "- **预销售单ID**：`{pre_sales_order_id}`\n"
+            "- **订单编号**：`{human_id}`\n"
+            "- **创建时间**：`{created_at}`\n"
+            "- **发送者**：{sender_label}\n"
+            "- **客户**：{customer_name}\n"
+            "- **仓库**：{warehouse_name}\n"
+            "- **类型**：{kind}\n"
+            "- **明细条数**：`{items_count}`\n"
+        ),
+    )
+
+    created_at_str = (created_at or "").strip()
+    if not created_at_str:
+        created_at_str = timezone.localtime(timezone.now()).strftime("%Y-%m-%d %H:%M:%S")
+
+    return template.format(
+        pre_sales_order_id=str(pre_sales_order_id or "-") or "-",
+        human_id=str(human_id or "-") or "-",
+        created_at=str(created_at_str),
+        sender_label=str(sender_label or "系统自动发送"),
+        customer_name=str(customer_name or "-"),
+        warehouse_name=str(warehouse_name or "-"),
+        kind=str(kind or "-"),
+        items_count=int(items_count) if items_count is not None else 0,
+    )
+
+
 def _to_decimal(value: Any, *, field_name: str) -> Decimal:
     if value is None or value == '':
         raise ValueError(f'{field_name} 不能为空')