fix: 采购价格上限按数量计算总价 (#181)

admin/templates/syb/list.html

@@ -230,18 +230,24 @@
             </select>
           {{if eq .PurchaseClientCount 0}}<small class="missing">当前账号没有可见的客户端，请先联系管理员绑定客户端。</small>{{else}}<small>所有当前账号可见的客户端均可指派；未就绪或离线客户端会等待其就绪后领取。</small>{{end}}
         </div>
-        <p class="hint">价格上限单位是人民币元，默认取已映射 PDD 规格的采集价；不会使用顺运宝的台币售价。</p>
+        <p class="hint">单价上限默认取已映射 PDD 规格的人民币采集价；订单总价上限按单价乘以顺运宝数量自动计算，不使用顺运宝的台币售价。</p>
         {{range .Rows}}
-        <div class="purchase-confirm-row" data-purchase-row="{{.SybID}}" hidden>
+        <div class="purchase-confirm-row" data-purchase-row="{{.SybID}}" data-purchase-quantity="{{.Quantity}}" hidden>
           <input type="hidden" name="ids" value="{{.SybID}}" disabled>
           <input type="hidden" name="mapping_option_key" value="{{.MappingOptionKey}}" disabled>
           <input type="hidden" name="context_version" value="{{.ContextVersion}}" disabled>
           <div><strong>{{.OrderNo}}</strong> · {{.Title}} × {{.Quantity}}</div>
           <div class="hint">顺运宝规格：{{.ProductSpec}}</div>
           <div><strong>已选 PDD 规格：</strong>{{.MappedPddChoice}}</div>
-          <label>选定颜色的人民币价格上限（元）
-            <input type="number" name="max_price_yuan" min="0.01" step="0.01" value="{{.DefaultMaxPrice}}" required disabled>
-          </label>
+          <label for="purchase-unit-price-{{.SybID}}">选定规格的人民币单价上限（元）</label>
+          <input id="purchase-unit-price-{{.SybID}}" type="number" name="unit_price_limit_yuan"
+                 min="0.01" step="0.01" value="{{.DefaultUnitPrice}}" required disabled
+                 data-unit-price-input aria-describedby="purchase-price-help-{{.SybID}}">
+          <p class="hint" id="purchase-price-help-{{.SybID}}">
+            数量：{{.Quantity}} 件 · 订单总价上限：
+            <output data-total-price-output aria-live="polite">{{if .DefaultTotalPrice}}¥{{.DefaultTotalPrice}}{{else}}—{{end}}</output>
+          </p>
+          <p class="hint">提交时后端会按最新数量重新计算订单总价上限。</p>
         </div>
         {{end}}
         <p class="missing" data-purchase-empty hidden>没有选择可采购的明细，请关闭后重新勾选。</p>