运费逻辑

app/api/routes/scrape.py

@@ -23,7 +23,11 @@ from app.models.scrape import (
     SearchResultData, TradeMonitorRequest,
 )
 from app.utils.http_utils import generate_signed_headers
-from app.utils.parse_util import get_handle_fee, get_shipping_fee
+from app.utils.parse_util import (
+    get_franchise_shipping_fee,
+    get_handle_fee,
+    get_shipping_fee,
+)
 
 router = APIRouter(prefix="/api", tags=["scrape"])
 
@@ -139,8 +143,28 @@ async def categories(
     dependencies=[Depends(require_bearer_token)],
 )
 async def order_get_shipping_fee(payload: OrderShippingFeeRequest) -> ApiResponse[OrderShippingFeeData]:
-    goods_amount = sum(item.goods_number * item.goods_price for item in payload.item_list)
-    shipping_fee = get_shipping_fee(goods_amount)
+    """计算订单运费与手续费。
+
+    规则:
+      - 官方店铺(supplier 为空)运费: 按官方部分商品总额套阶梯价(440/385/0)
+        * 订单中无任何官方商品时,官方运费 0
+      - 加盟店运费(supplier 非空,同名视为同一家): 每家统一 800 日元
+      - 通贩手续费: 按全部商品(含官方+加盟店)总额套阶梯价(240/0)
+    """
+    official_amount = 0
+    franchise_stores: set[str] = set()
+    goods_amount = 0
+    for item in payload.item_list:
+        subtotal = item.goods_number * item.goods_price
+        goods_amount += subtotal
+        if item.supplier == "":
+            official_amount += subtotal
+        else:
+            franchise_stores.add(item.supplier)
+
+    official_shipping_fee = get_shipping_fee(official_amount) if official_amount > 0 else 0
+    franchise_shipping_fee = get_franchise_shipping_fee(len(franchise_stores))
+    shipping_fee = official_shipping_fee + franchise_shipping_fee
     handle_amount = get_handle_fee(goods_amount)
     order_amount = goods_amount + shipping_fee + handle_amount