fix: 进货单购买数量不在价格范围内时取值问题

src/pages/lxMall/purchaseOrder/index.less

@@ -201,8 +201,8 @@
           color: #FFF;
           height: 50px;
           font-size: 16px;
-          background-color: #D32F2F;
-          border-color: #D32F2F;
+          background-color: var(--mall_main_color);
+          border-color: var(--mall_main_color);
           border-radius: 0;
           outline: none;
           cursor: pointer;

src/pages/lxMall/purchaseOrder/index.tsx

@@ -309,7 +309,7 @@ const PurchaseOrder: React.FC<PurchaseOrderPropsType> = (props) => {
         }
       }
       if (isEmpty(priceItem)) {
-        priceItem = getMaxCountRange(priceRange)
+        priceItem = getMaxCountRange(priceRange, count)
       }
       return parseFloat(priceItem.price) * count
     }
@@ -663,7 +663,7 @@ const PurchaseOrder: React.FC<PurchaseOrderPropsType> = (props) => {
         return Number(count) >= Number(item.min) && Number(count) <= Number(item.max)
       })
       if (isEmpty(temp)) {
-        const maxItem = getMaxCountRange(detail.priceRange)
+        const maxItem = getMaxCountRange(detail.priceRange, count)
         unitPrice = maxItem.price
       } else {
         unitPrice = temp[0]?.price
@@ -673,14 +673,12 @@ const PurchaseOrder: React.FC<PurchaseOrderPropsType> = (props) => {
     return unitPrice
   }
 
-  const getMaxCountRange = (priceRange) => {
-    let maxItem: any = {}
-    for (const item of priceRange) {
-      if (Number(item.max) > Number(maxItem.max || 0)) {
-        maxItem = item
-      }
-    }
-    return maxItem
+  const getMaxCountRange = (priceRange, buyCount) => {
+    const priceList = [...priceRange]
+
+    const result =  priceList.sort((a, b) => (Number(b.max) < Number(buyCount) && Number(buyCount) < Number(a.min) ? 1 : -1))
+    // const result = priceList.sort((a, b) => Math.abs(Number(b.max) - Number(buyCount)) < Math.abs(Number(a.min) - Number(buyCount)) ? 1 : -1 )
+    return result[0]
   }
 
   const getDetailLink = (info) => {