feat: big version, added tasks for backup_database and stock change, added health check api, approve sse (support channel via merchant)

business/tasks.py

@@ -0,0 +1,56 @@
+import logging
+from typing import Any, Dict, List
+
+from celery import shared_task
+from django.contrib.auth import get_user_model
+
+from business import models as business_models
+from stock import models as stock_models
+from stock.services import StockFlowService
+
+
+logger = logging.getLogger(__name__)
+
+
+@shared_task(bind=True)
+def create_purchase_order_stock_entries(
+    self,
+    *,
+    purchase_order_id: int,
+    warehouse_id: int,
+    items: List[Dict[str, Any]],
+    created_by_id: int | None = None,
+):
+    """
+    为采购单创建入库记录。仅支持入库（StockFlowService.stock_in）。
+    """
+    try:
+        purchase_order = business_models.PurchaseOrder.objects.select_related('merchant').get(id=purchase_order_id)
+    except business_models.PurchaseOrder.DoesNotExist:
+        logger.error('PurchaseOrder %s 不存在，无法创建入库单', purchase_order_id)
+        return {'error': 'purchase_order_not_found', 'purchase_order_id': purchase_order_id}
+
+    merchant = purchase_order.merchant
+
+    created_by = None
+    if created_by_id:
+        UserModel = get_user_model()
+        created_by = UserModel.objects.filter(id=created_by_id).first()
+
+    service = StockFlowService(merchant=merchant, created_by=created_by)
+    record, details, created_count = service.stock_in(
+        warehouse_id=warehouse_id,
+        source_type=stock_models.StockChangeSourceEnum.PURCHASE,
+        source_id=purchase_order.id,
+        items=items,
+    )
+
+    payload = {
+        'task_id': self.request.id,
+        'purchase_order_id': purchase_order.id,
+        'stock_change_record_id': getattr(record, 'id', None),
+        'created_details_count': created_count,
+    }
+    logger.info('采购单 %s 入库任务完成: %s', purchase_order.id, payload)
+    return payload
+