xx

src/inventory/schemas/__init__.py

@@ -59,7 +59,11 @@ from .material_schemas import (
 from .purchase_demand_schemas import (
     PurchaseDemandCalculateRequest,
     PurchaseDemandItemResponse,
-    PurchaseDemandResponse
+    PurchaseDemandResponse,
+    PurchaseDemandConvertItem,
+    PurchaseDemandConvertRequest,
+    PurchaseOrderCreatedResponse,
+    PurchaseDemandConvertResponse
 )
 
 from .common_schemas import PaginatedResponse

src/inventory/schemas/purchase_demand_schemas.py

@@ -5,6 +5,7 @@
 from pydantic import BaseModel, Field
 from decimal import Decimal
 from typing import Optional, List
+from datetime import date
 
 
 class PurchaseDemandCalculateRequest(BaseModel):
@@ -34,3 +35,34 @@ class PurchaseDemandResponse(BaseModel):
     shortage_count: int = Field(default=0, description="缺货物料种类数")
     source_order_ids: List[int] = Field(default_factory=list, description="来源销售订单ID")
     source_order_nos: List[str] = Field(default_factory=list, description="来源销售订单编号")
+
+
+class PurchaseDemandConvertItem(BaseModel):
+    """待转采购单的单条需求"""
+    material_id: int
+    quantity: Decimal = Field(..., gt=0, description="采购数量（通常取缺口量）")
+    unit_cost: Decimal = Field(..., ge=0, description="单价")
+    supplier_id: int
+
+
+class PurchaseDemandConvertRequest(BaseModel):
+    """一键生成采购单请求（按 supplier_id 分组，每组生成一张草稿采购单）"""
+    items: List[PurchaseDemandConvertItem] = Field(..., min_length=1)
+    expected_date: Optional[date] = None
+    remark: Optional[str] = None
+
+
+class PurchaseOrderCreatedResponse(BaseModel):
+    """已创建的采购单摘要"""
+    purchase_order_id: int
+    order_no: str
+    supplier_id: int
+    supplier_name: str
+    item_count: int
+    total_amount: Decimal
+
+
+class PurchaseDemandConvertResponse(BaseModel):
+    """一键生成采购单结果"""
+    created_orders: List[PurchaseOrderCreatedResponse] = Field(default_factory=list)
+    skipped: int = Field(default=0, description="因数量<=0被跳过的条目数")