fix: read BOM locations from pack inventory

backend/src/services/mkhBomService.js

@@ -30,8 +30,9 @@
 //       payload 里的 bomDetails / factoryRows / pricingRows 属成本与工厂行，结构不同
 //       （无 SKU 条码），也不能直接当配件 BOM。
 //
-// ④ 配件仓位 —— 业务库 SKU 档案中的库位字段；
+// ④ 配件仓位 —— 业务库 rpt.jst_packInventoryInfo；
-//    业务库 jst_sku.bin / other_bin 全库为空，故多数配件显示「未维护」。
+//    sku_id 可能带“-包装序号”后缀，需按基础配件编码匹配。优先显示 bin_group / bin，
+//    仓位为空时显示净数量大于 0 的 pack_id（箱号）与 wh_id（仓库）。
 //
 // ⑤ 配件库存 —— 业务库 rpt.jst_inventoryInfo 按 sku_id 汇总。
 
@@ -335,6 +336,46 @@ function countDistinctBomProducts(...boms) {
 
 const sumQty = (components) => components.reduce((sum, item) => sum + (toNumber(item.qty) || 0), 0);
 
+function matchesPackSku(componentCode, packSkuCode) {
+  const component = toText(componentCode)?.toUpperCase();
+  const packSku = toText(packSkuCode)?.toUpperCase();
+  if (!component || !packSku) return false;
+  return packSku === component || packSku.startsWith(`${component}-`);
+}
+
+function formatPackLocation(row) {
+  const warehouseId = toText(row.warehouseId);
+  const binGroup = toText(row.binGroup);
+  const bin = toText(row.bin);
+  const packId = toText(row.packId);
+  const warehouse = warehouseId ? `仓库 ${warehouseId}` : '';
+  const position = [binGroup, bin].filter(Boolean).join(' / ')
+    || (packId ? `箱号 ${packId}` : '');
+  return [warehouse, position].filter(Boolean).join(' · ');
+}
+
+function buildPackLocationMap(rows, componentCodes) {
+  const locations = new Map(componentCodes.map((code) => [code, new Set()]));
+
+  rows.forEach((row) => {
+    const componentCode = componentCodes.find((code) => matchesPackSku(code, row.skuId));
+    if (!componentCode) return;
+    const location = formatPackLocation(row);
+    if (location) locations.get(componentCode).add(location);
+  });
+
+  const result = new Map();
+  locations.forEach((values, code) => {
+    const all = [...values];
+    if (!all.length) return;
+    const visible = all.slice(0, 10);
+    result.set(code, all.length > visible.length
+      ? `${visible.join('、')} 等 ${all.length} 个位置`
+      : visible.join('、'));
+  });
+  return result;
+}
+
 /**
  * 找出「资料库里已维护 BOM、但业务库列表里没有」的模块化商品，
  * 作为追加行放在列表最前面，保证已维护的数据一定能在页面上看到。
@@ -594,17 +635,31 @@ async function getMkhBomDetail(mkhSkuId) {
     }
 
     try {
+      const locationParams = {};
+      const locationConditions = codes.map((code, index) => {
+        locationParams[`lc${index}`] = code;
+        locationParams[`lp${index}`] = `${code}-%`;
+        return `(p.sku_id = @lc${index} OR p.sku_id LIKE @lp${index})`;
+      });
       const locRows = await cloudDatabase.query(
-        `SELECT sku_id AS skuId,
+        `SELECT p.sku_id AS skuId,
-                COALESCE(NULLIF(LTRIM(RTRIM(bin)), N''), NULLIF(LTRIM(RTRIM(other_bin)), N'')) AS location
+                p.pack_id AS packId,
-         FROM dbo.jst_sku
+                p.wh_id AS warehouseId,
-         WHERE sku_id IN (${placeholders})`,
+                p.bin AS bin,
-        codeParams,
+                p.bin_group AS binGroup,
+                SUM(p.qty) AS qty
+         FROM rpt.jst_packInventoryInfo p
+         WHERE ${locationConditions.join(' OR ')}
+         GROUP BY p.sku_id, p.pack_id, p.wh_id, p.bin, p.bin_group
+         HAVING SUM(p.qty) > 0`,
+        locationParams,
         { requestTimeout: 120000 }
       );
-      locRows.forEach((row) => locationMap.set(toText(row.skuId), toText(row.location)));
+      buildPackLocationMap(locRows, codes).forEach((location, code) => {
+        locationMap.set(code, location);
+      });
     } catch (error) {
-      console.warn('[MkhBom] 配件仓位查询降级:', error.message);
+      console.warn('[MkhBom] 配件箱号/仓位查询降级:', error.message);
     }
   }
 
@@ -642,5 +697,8 @@ module.exports = {
     buildBusinessBomExtraRows,
     mergeExtraRows,
     filterExtraRows,
+    matchesPackSku,
+    formatPackLocation,
+    buildPackLocationMap,
   },
 };

backend/test/mkhBomService.test.js

@@ -93,3 +93,22 @@ test('BOM-only rows honor the same keyword filter as jst_sku rows', () => {
 
   assert.deepEqual(rows.map((row) => row.skuId), ['MKH-B-1']);
 });
+
+test('pack inventory locations match a BOM component and its package suffixes', () => {
+  assert.equal(_private.matchesPackSku('PART-1', 'PART-1'), true);
+  assert.equal(_private.matchesPackSku('PART-1', 'PART-1-10'), true);
+  assert.equal(_private.matchesPackSku('PART-1', 'PART-10'), false);
+});
+
+test('pack inventory location prefers bins and falls back to positive-stock box ids', () => {
+  const locations = _private.buildPackLocationMap([
+    {
+      skuId: 'PART-1-1', warehouseId: 1, binGroup: '成品区', bin: 'A-01', packId: 'BOX-1', qty: 2,
+    },
+    {
+      skuId: 'PART-1-2', warehouseId: 1, binGroup: null, bin: '', packId: 'BOX-2', qty: 1,
+    },
+  ], ['PART-1']);
+
+  assert.equal(locations.get('PART-1'), '仓库 1 · 成品区 / A-01、仓库 1 · 箱号 BOX-2');
+});