'use strict';

const test = require('node:test');
const assert = require('node:assert/strict');

const { _private } = require('../src/services/mkhBomService');

const emptyBom = () => ({ bySku: new Map(), bySpuPrefix: [], entries: [] });

test('official Jushuitan BOM rows use external component codes and consolidate duplicates', () => {
  const bom = _private.groupOfficialBomRows([
    {
      skuId: 'MKHDNZ0409260600022',
      componentSkuId: 'DNZ039804N1410V01',
      componentName: '桌面',
      qty: '1.000000',
    },
    {
      skuId: 'MKHDNZ0409260600022',
      componentSkuId: 'DNZ040928N1440V01',
      componentName: 'K脚架',
      qty: '1.000000',
    },
    {
      skuId: 'MKHDNZ0409260600022',
      componentSkuId: 'DNZ040928N1440V01',
      componentName: 'K脚架',
      qty: '1.000000',
    },
    {
      skuId: 'MKHDNZ0409260600022',
      componentSkuId: '   ',
      componentName: '无外部编码的内部物料',
      qty: 1,
    },
  ]);

  const matched = _private.matchComponents(bom, 'MKHDNZ0409260600022');
  assert.deepEqual(
    matched.components.map((item) => [item.barcode, item.name, item.qty]),
    [
      ['DNZ039804N1410V01', '桌面', 1],
      ['DNZ040928N1440V01', 'K脚架', 2],
    ]
  );
});

test('business MKH BOM rows are grouped for drill-down and match codes without separators', () => {
  const bom = _private.groupBusinessBomRows([
    {
      comboSkuId: 'MKH-DNY004624N1015V01-1-DNZ038569N1280V01-1',
      componentSkuId: 'DNY004624N1015V01',
      componentName: '配件 A',
      qty: 1,
    },
    {
      comboSkuId: 'MKH-DNY004624N1015V01-1-DNZ038569N1280V01-1',
      componentSkuId: 'DNZ038569N1280V01',
      componentName: '配件 B',
      qty: 2,
    },
  ]);

  const matched = _private.matchComponents(
    bom,
    'MKHDNY004624N1015V011DNZ038569N1280V011'
  );

  assert.equal(bom.entries.length, 1);
  assert.equal(matched.matchType, 'sku');
  assert.deepEqual(
    matched.components.map((item) => [item.barcode, item.name, item.qty]),
    [
      ['DNY004624N1015V01', '配件 A', 1],
      ['DNZ038569N1280V01', '配件 B', 2],
    ]
  );
});

test('duplicate business BOM component rows are consolidated without losing quantity', () => {
  const bom = _private.groupBusinessBomRows([
    { comboSkuId: 'MKH-A-1', componentSkuId: 'PART-1', qty: 1 },
    { comboSkuId: 'MKH-A-1', componentSkuId: 'PART-1', qty: 2 },
  ]);

  const matched = _private.matchComponents(bom, 'MKHA1');
  assert.equal(matched.components.length, 1);
  assert.equal(matched.components[0].qty, 3);
});

test('business BOM takes precedence while product database BOM remains a fallback', () => {
  const businessBom = _private.groupBusinessBomRows([
    { comboSkuId: 'MKH-A-1', componentSkuId: 'BUSINESS-PART', qty: 1 },
  ]);
  const productBom = {
    bySku: new Map([['MKHA1', [{ barcode: 'PRODUCT-PART', qty: 1 }]]]),
    bySpuPrefix: [],
    entries: [],
  };

  const matched = _private.matchBomSources(emptyBom(), businessBom, productBom, 'MKHA1');
  assert.equal(matched.dataSource, 'business_bom');
  assert.equal(matched.components[0].barcode, 'BUSINESS-PART');
});

test('official Jushuitan BOM takes precedence over all fallback sources', () => {
  const officialBom = _private.groupOfficialBomRows([
    { skuId: 'MKH-A-1', componentSkuId: 'OFFICIAL-PART', qty: 2 },
  ]);
  const businessBom = _private.groupBusinessBomRows([
    { comboSkuId: 'MKH-A-1', componentSkuId: 'BUSINESS-PART', qty: 1 },
  ]);
  const productBom = {
    bySku: new Map([['MKHA1', [{ barcode: 'PRODUCT-PART', qty: 1 }]]]),
    bySpuPrefix: [],
    entries: [],
  };

  const matched = _private.matchBomSources(officialBom, businessBom, productBom, 'MKHA1');
  assert.equal(matched.dataSource, 'official_bom');
  assert.equal(matched.components[0].barcode, 'OFFICIAL-PART');
  assert.equal(matched.components[0].qty, 2);
});

test('BOM summary excludes combinations outside the designated warehouse SKU set', () => {
  const businessBom = _private.groupBusinessBomRows([
    { comboSkuId: 'MKH-A-1', componentSkuId: 'BUSINESS-PART', qty: 1 },
    { comboSkuId: 'MKH-OUTSIDE-1', componentSkuId: 'OUTSIDE-PART', qty: 1 },
  ]);
  businessBom.existingSkuKeys = new Set(['MKHA1', 'MKHB1']);
  const productBom = {
    bySku: new Map([['MKHB1', [{ barcode: 'PRODUCT-PART', qty: 1 }]]]),
    bySpuPrefix: [],
    entries: [],
  };

  const officialBom = _private.groupOfficialBomRows([
    { skuId: 'MKH-A-1', componentSkuId: 'OFFICIAL-PART', qty: 1 },
  ]);

  assert.deepEqual(_private.summarizeConfiguredBoms(officialBom, businessBom, productBom), {
    official: 1,
    business: 0,
    product: 1,
    total: 2,
  });
});

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');
});

test('components without pack inventory rows do not receive a fallback warehouse location', () => {
  const locations = _private.buildPackLocationMap([], ['PART-1']);
  assert.equal(locations.has('PART-1'), false);
});

// ── 配件仓位：只认「箱及仓位库存」，不做库存表/商品档案仓回退（2026-09-17 业务口径）──
test('component location is sourced only from the pack inventory table', () => {
  assert.equal(typeof _private.loadComponentLocations, 'function');
  // 兜底链已删除：这两个符号不应再存在（存在即有代码走回退）
  assert.equal(_private.loadComponentLocationData, undefined);
  assert.equal(_private.buildInventoryWarehouseMap, undefined);
});

test('pack inventory without bin/bin_group falls back to the box id, never to a warehouse', () => {
  const locations = _private.buildPackLocationMap([
    {
      skuId: 'PART-1-1', warehouseId: 1, warehouseName: '半成品仓', binGroup: null, bin: null, packId: 'BOX-9', qty: 3,
    },
  ], ['PART-1', 'PART-2']);

  assert.equal(locations.get('PART-1'), '半成品仓 · 箱号 BOX-9');
  // 该表没有记录 → 无仓位，交给前端显示「未维护」，不回退任何仓库
  assert.equal(locations.has('PART-2'), false);
});

// ── 补货预警：近 15 天日销 > 0 且 现有库存 < 3 天日销 ───────────────
const metrics = (row) => _private.buildReplenishMetrics(row);

test('replenish: stock below 3 days of sales is flagged as stockout or warning', () => {
  const stockout = metrics({ avgSale: 2.55, realtimeStock: 0, monitorStock: 0 });
  assert.equal(stockout.stockDays, 0);
  assert.equal(stockout.warningLevel, '缺货');
  assert.equal(stockout.hasWarning, true);
  assert.equal(stockout.replenishQty, 8); // ceil(3 * 2.55 - 0) = ceil(7.65)

  const warning = metrics({ avgSale: 2, realtimeStock: 1, monitorStock: 1 });
  assert.equal(warning.stockDays, 0.5);
  assert.equal(warning.warningLevel, '预警');
  assert.equal(warning.hasWarning, true);
  assert.equal(warning.replenishQty, 5); // ceil(6 - 1)
});

test('replenish: the threshold is exactly 3 days of sales', () => {
  const atThreshold = metrics({ avgSale: 2, realtimeStock: 6, monitorStock: 6 });
  assert.equal(atThreshold.stockDays, 3);
  assert.equal(atThreshold.warningLevel, '正常');
  assert.equal(atThreshold.hasWarning, false);
  assert.equal(atThreshold.replenishQty, 0);

  const below = metrics({ avgSale: 2, realtimeStock: 5.9, monitorStock: 5.9 });
  assert.equal(below.hasWarning, true);
});

test('replenish: stock prefers the brand-warehouse realtime value, snapshot only as fallback', () => {
  const realtime = metrics({ avgSale: 1, realtimeStock: 4, monitorStock: 9 });
  assert.equal(realtime.stock, 4);
  assert.equal(realtime.stockSource, 'realtime');

  // 实时库存「无记录」（null）才回退监控快照
  const fallback = metrics({ avgSale: 1, realtimeStock: null, monitorStock: 9 });
  assert.equal(fallback.stock, 9);
  assert.equal(fallback.stockSource, 'monitor');

  // 实时库存为 0 是有效值，不得被快照覆盖
  const zero = metrics({ avgSale: 1, realtimeStock: 0, monitorStock: 9 });
  assert.equal(zero.stock, 0);
  assert.equal(zero.warningLevel, '缺货');
});

test('replenish: products without 7-day sales never warn', () => {
  const noSale = metrics({ avgSale: 0, realtimeStock: 0, monitorStock: 0 });
  assert.equal(noSale.hasWarning, false);
  assert.equal(noSale.warningLevel, '无销量');
  assert.equal(noSale.stockDays, null);
  assert.equal(noSale.replenishQty, 0);
  assert.equal(noSale.thresholdQty, 0);
});

test('replenish scope resolves from scope or the legacy warningOnly flag, then filters rows', () => {
  const rows = [
    { skuId: 'A', hasWarning: true, dailySale: 2 },
    { skuId: 'B', hasWarning: false, dailySale: 2 },
    { skuId: 'C', hasWarning: false, dailySale: 0 },
  ];

  assert.equal(_private.resolveScope({}), 'all');
  assert.equal(_private.resolveScope({ warningOnly: '1' }), 'warning');
  assert.equal(_private.resolveScope({ scope: 'sold' }), 'sold');
  assert.equal(_private.resolveScope({ scope: 'bogus', warningOnly: 'true' }), 'warning');

  assert.deepEqual(_private.filterRows(rows, { scope: 'warning' }).map((r) => r.skuId), ['A']);
  assert.deepEqual(_private.filterRows(rows, { scope: 'sold' }).map((r) => r.skuId), ['A', 'B']);
  assert.deepEqual(_private.filterRows(rows, { keyword: 'b' }).map((r) => r.skuId), ['B']);
});

test('replenish sort puts the most urgent first and no-sale products last', () => {
  const rows = [
    { skuId: 'NO-SALE', stockDays: null },
    { skuId: 'B', stockDays: 2.8 },
    { skuId: 'A', stockDays: 0 },
    { skuId: 'C', stockDays: 12 },
  ];

  assert.deepEqual(
    _private.sortRows(rows, 'stockDays', 'ASC').map((r) => r.skuId),
    ['A', 'B', 'C', 'NO-SALE']
  );
  assert.deepEqual(
    _private.sortRows(rows, 'stockDays', 'DESC').map((r) => r.skuId),
    ['C', 'B', 'A', 'NO-SALE']
  );
  assert.deepEqual(
    _private.sortRows(rows, 'skuId', 'ASC').map((r) => r.skuId),
    ['A', 'B', 'C', 'NO-SALE']
  );
});

// ── 在途加工单：半成品包装仓有未完成加工单就不再预警（2026-09-17 口径）──
test('replenish: a pending work order suppresses the replenish warning', () => {
  // 库存为 0、本该判「缺货」，但半成品包装项目仓已有未完成加工单
  const scheduled = metrics({
    avgSale: 2,
    realtimeStock: 0,
    monitorStock: 0,
    pendingWorkOrderQty: 20,
    pendingWorkOrderCount: 1,
    // 用本地时间构造，避免测试机时区不同导致日期串变化
    pendingWorkOrderEta: new Date(2026, 9, 1),
    pendingWorkOrderNo: '893495',
  });
  assert.equal(scheduled.hasWarning, false);
  assert.equal(scheduled.warningLevel, '已排产');
  assert.equal(scheduled.replenishQty, 0);
  assert.equal(scheduled.hasPendingWorkOrder, true);
  assert.equal(scheduled.pendingWorkOrderQty, 20);
  assert.equal(scheduled.pendingWorkOrderCount, 1);
  assert.equal(scheduled.pendingWorkOrderEta, '2026-10-01');
  assert.equal(scheduled.pendingWorkOrderNo, '893495');
  // 可用天数仍如实反映现有库存，便于业务复核
  assert.equal(scheduled.stockDays, 0);

  // 同样库存但无加工单时仍然预警 —— 确认抑制效果确实来自加工单
  const bare = metrics({ avgSale: 2, realtimeStock: 0, monitorStock: 0 });
  assert.equal(bare.hasWarning, true);
  assert.equal(bare.warningLevel, '缺货');
});

test('replenish: pending work order fields default to empty without any order', () => {
  const none = metrics({ avgSale: 1, realtimeStock: 0 });
  assert.equal(none.hasPendingWorkOrder, false);
  assert.equal(none.pendingWorkOrderQty, 0);
  assert.equal(none.pendingWorkOrderCount, 0);
  assert.equal(none.pendingWorkOrderEta, null);
  assert.equal(none.pendingWorkOrderNo, null);

  // 数量为 0 但确实挂着加工单（未入库）时，同样按「已排产」处理
  const zeroQty = metrics({
    avgSale: 1,
    realtimeStock: 0,
    pendingWorkOrderQty: 0,
    pendingWorkOrderCount: 2,
  });
  assert.equal(zeroQty.hasPendingWorkOrder, true);
  assert.equal(zeroQty.warningLevel, '已排产');
  assert.equal(zeroQty.hasWarning, false);
});

test('replenish: products without sales stay "no sale" even with a pending work order', () => {
  const noSale = metrics({
    avgSale: 0,
    realtimeStock: 0,
    pendingWorkOrderQty: 5,
    pendingWorkOrderCount: 1,
  });
  assert.equal(noSale.warningLevel, '无销量');
  assert.equal(noSale.hasWarning, false);
  // 在途量仍要透出，页面上应能看到
  assert.equal(noSale.pendingWorkOrderQty, 5);
});

test('pending work order filters keep the business-confirmed source and exclusions', () => {
  assert.equal(_private.WORK_ORDER_WAREHOUSE, '简尚-崔桥工厂半成品包装项目仓');
  assert.equal(_private.WORK_ORDER_VOID_STATUS, '作废');
  assert.equal(_private.WORK_ORDER_RECEIVED_STATUS, '全部入库');
  assert.equal(_private.WARNING_LEVEL.SCHEDULED, '已排产');
});

// ── 待发货订单（见服务文件头 ⑩）──────────────────────────────────
test('pending order: jst_Orders.skus text column is parsed into code/quantity pairs', () => {
  // 单商品、省略 *数量
  assert.deepEqual(_private.parseOrderSkus('1.MKHDNZ0409260700426'), [
    { code: 'MKHDNZ0409260700426', qty: 1 },
  ]);
  // 多商品、每个带 *数量（总件数前缀 2. 不参与计算）
  assert.deepEqual(_private.parseOrderSkus('2.A*1,B*1'), [
    { code: 'A', qty: 1 },
    { code: 'B', qty: 1 },
  ]);
  // 同一单里成品与组合装混排：文本照常解析，是否成品由 isMkhProductCode 判定
  assert.deepEqual(
    _private.parseOrderSkus('3.GBGJ-ZWJ024903AN1407V01*1,GBGJ-ZWJ024903BN1407V01*1,MKHDNZ0409260600022*1'),
    [
      { code: 'GBGJ-ZWJ024903AN1407V01', qty: 1 },
      { code: 'GBGJ-ZWJ024903BN1407V01', qty: 1 },
      { code: 'MKHDNZ0409260600022', qty: 1 },
    ]
  );
  // 空值 / 空汇总（实测 23% 的普通订单是 `0.`，必须安全返回空数组）
  assert.deepEqual(_private.parseOrderSkus('0.'), []);
  assert.deepEqual(_private.parseOrderSkus(''), []);
  assert.deepEqual(_private.parseOrderSkus(null), []);
  assert.deepEqual(_private.parseOrderSkus('2.MKHDNZ0409260601388*2'), [
    { code: 'MKHDNZ0409260601388', qty: 2 },
  ]);
});

test('pending order: only MKH finished products count, combination codes are excluded', () => {
  assert.equal(_private.isMkhProductCode('MKHDNZ0409260700426'), true);
  assert.equal(_private.isMkhProductCode('MKHSJ0425080100098'), true);
  // `MKH-` 打头的是组合装（拼接码），不是成品，不计入成品需求
  assert.equal(_private.isMkhProductCode('MKH-DNZ038522N1280V01-1-GBGJ-DNZ038403N1440V01-1'), false);
  assert.equal(_private.isMkhProductCode('GBGJ-ZWJ024903AN1407V01'), false);
  assert.equal(_private.isMkhProductCode(''), false);
  assert.deepEqual([..._private.PENDING_ORDER_EXCLUDED_STATUS], ['Cancelled', 'Merged']);
});

test('replenish: no sales but unshipped orders warn by available days (stock / order qty)', () => {
  // 可用天数 = 现有库存 ÷ 代发订单件数；≤ 3 天即预警，= 0（无库存）为缺货。
  // 完全没货：可用天数 0 → 缺货，补货量 = 代发件数 − 现有库存
  const outOfStock = metrics({
    avgSale: 0, realtimeStock: 0, monitorStock: 0, pendingOrderQty: 4, pendingOrderCount: 2,
  });
  assert.equal(outOfStock.hasWarning, true);
  assert.equal(outOfStock.warningLevel, '缺货');
  assert.equal(outOfStock.orderDriven, true);
  assert.equal(outOfStock.stockDays, 0);
  assert.equal(outOfStock.replenishQty, 4);
  assert.equal(outOfStock.pendingOrderQty, 4);
  assert.equal(outOfStock.pendingOrderCount, 2);

  // 有货但只够 0.25 天 → 预警（不再因「库存 < 订单件数」直接判缺货）
  const short = metrics({
    avgSale: 0, realtimeStock: 1, monitorStock: 1, pendingOrderQty: 4,
  });
  assert.equal(short.warningLevel, '预警');
  assert.equal(short.hasWarning, true);
  assert.equal(short.stockDays, 0.25);
  // 补到 3 天缓冲：ceil(3 × 4 − 1) = 11
  assert.equal(short.replenishQty, 11);

  // 可用天数正好 1 天 → 仍预警，补到 3 天缓冲：ceil(3 × 4 − 4) = 8
  const oneDay = metrics({
    avgSale: 0, realtimeStock: 4, monitorStock: 4, pendingOrderQty: 4,
  });
  assert.equal(oneDay.warningLevel, '预警');
  assert.equal(oneDay.stockDays, 1);
  assert.equal(oneDay.replenishQty, 8);

  // 可用天数正好 3 天（库存=12，件数=4）→ 阈值取「< 3」，故不预警
  const atThreshold = metrics({
    avgSale: 0, realtimeStock: 12, monitorStock: 12, pendingOrderQty: 4,
  });
  assert.equal(atThreshold.warningLevel, '正常');
  assert.equal(atThreshold.hasWarning, false);
  assert.equal(atThreshold.stockDays, 3);
  assert.equal(atThreshold.replenishQty, 0);

  // 可用天数超 3 天（库存=13，件数=4 → 3.25 天）→ 库存充足，不预警，但仍标记 orderDriven
  const enough = metrics({
    avgSale: 0, realtimeStock: 13, monitorStock: 13, pendingOrderQty: 4,
  });
  assert.equal(enough.warningLevel, '正常');
  assert.equal(enough.hasWarning, false);
  assert.equal(enough.orderDriven, true);
  assert.equal(enough.stockDays, 3.25);
});

test('replenish: order-driven warning does not override the pending work order exemption', () => {
  const scheduled = metrics({
    avgSale: 0,
    realtimeStock: 0,
    pendingOrderQty: 5,
    pendingOrderCount: 1,
    pendingWorkOrderQty: 6,
    pendingWorkOrderCount: 1,
  });
  assert.equal(scheduled.warningLevel, '已排产');
  assert.equal(scheduled.hasWarning, false);
  assert.equal(scheduled.replenishQty, 0);
  // 待发货量仍要透出，页面上应能看到
  assert.equal(scheduled.pendingOrderQty, 5);
  assert.equal(scheduled.orderDriven, true);
});

test('replenish: pending order fields default to empty without any unshipped order', () => {
  const none = metrics({ avgSale: 1, realtimeStock: 0 });
  assert.equal(none.pendingOrderQty, 0);
  assert.equal(none.pendingOrderCount, 0);
  assert.equal(none.pendingOrderEarliest, null);
  assert.equal(none.orderDriven, false);

  // 无日销且无订单 → 仍是「无销量」，不参与预警
  const noSale = metrics({ avgSale: 0, realtimeStock: 0, pendingOrderQty: 0 });
  assert.equal(noSale.warningLevel, '无销量');
  assert.equal(noSale.orderDriven, false);

  // 有日销的商品照旧走原口径，但待发货量也要带上（页面新增列）
  const withSale = metrics({ avgSale: 2, realtimeStock: 0, pendingOrderQty: 3 });
  assert.equal(withSale.warningLevel, '缺货');
  assert.equal(withSale.orderDriven, false);
  assert.equal(withSale.pendingOrderQty, 3);
  assert.equal(withSale.replenishQty, 6); // ceil(3 × 2 − 0)，不受订单量影响
});

// ── 导出（见服务文件头 ⑨）────────────────────────────────────────
test('export: product rows follow the page table columns', () => {
  const rows = _private.buildProductExportRows([
    {
      row: {
        skuId: 'MKHDNZ0409260700428',
        productName: 'Z字翻转|25刨花板斜切',
        warningLevel: '缺货',
        dailySale: 2.97,
        stock: 0,
        pendingWorkOrderQty: 0,
        stockDays: 0,
        replenishQty: 9,
      },
      components: [{ barcode: 'A1', name: '铁搁板销', qty: 4 }, { barcode: 'A2', name: '自攻螺丝', qty: 12 }],
    },
    {
      row: {
        skuId: 'MKHDNZ0409260600117',
        productName: '无销量商品',
        warningLevel: '无销量',
        dailySale: 0,
        stock: 10,
        pendingWorkOrderQty: null,
        stockDays: null,
        replenishQty: 0,
      },
      components: [],
    },
  ]);

  assert.equal(rows.length, 2);
  assert.deepEqual(rows[0], {
    skuId: 'MKHDNZ0409260700428',
    productName: 'Z字翻转|25刨花板斜切',
    warningLevel: '缺货',
    dailySale: 2.97,
    stock: 0,
    pendingWorkOrderQty: 0,
    pendingOrderQty: 0,
    stockDays: 0,
    replenishQty: 9,
    componentShortage: '',
    assemblableQty: null,
    bomConfigured: '已配置',
    accessoryCount: 2,
    accessoryQtySum: 16,
  });
  // 无销量 → stockDays 为 null（前端导出时渲染成「无销量」），在途量缺省归 0
  assert.equal(rows[1].stockDays, null);
  assert.equal(rows[1].pendingWorkOrderQty, 0);
  assert.equal(rows[1].pendingOrderQty, 0);
  assert.equal(rows[1].bomConfigured, '未配置');
  assert.equal(rows[1].accessoryQtySum, 0);
});

test('export: component rows are flattened one row per component', () => {
  const rows = _private.buildComponentExportRows([
    {
      row: { skuId: 'MKHDNZ0409260700428', productName: 'Z字翻转' },
      components: [
        { barcode: 'DNZ039864N1410V01', name: '台面', qty: 1, location: 'A-01 成品区' },
        { barcode: 'GBSFY-01', name: '说明书', qty: 2, location: null },
      ],
    },
    { row: { skuId: 'MKHDNZ0409260600117', productName: '无配件商品' }, components: [] },
  ]);

  // 无配件的商品不产生任何导出行（不像页面那样占位）
  assert.equal(rows.length, 2);
  assert.deepEqual(rows[0], {
    skuId: 'MKHDNZ0409260700428',
    productName: 'Z字翻转',
    index: 1,
    componentBarcode: 'DNZ039864N1410V01',
    componentName: '台面',
    qty: 1,
    location: 'A-01 成品区',
  });
  // 同一商品的编码逐行重复（不做纵向合并，保证 Excel 可筛选）
  assert.equal(rows[1].skuId, 'MKHDNZ0409260700428');
  assert.equal(rows[1].index, 2);
  assert.equal(rows[1].location, null);
  assert.equal(rows[1].qty, 2);
});

test('export: component rows fall back to code when barcode is missing', () => {
  const rows = _private.buildComponentExportRows([
    { row: { skuId: 'MKH-X' }, components: [{ code: 'ONLY-CODE', name: '仅编码配件', qty: 3 }] },
  ]);
  assert.equal(rows[0].componentBarcode, 'ONLY-CODE');
});

test('export: mode constants cover both shapes', () => {
  assert.deepEqual(_private.EXPORT_MODES, { PRODUCTS: 'products', COMPONENTS: 'components' });
});

test('pack inventory location prefers the warehouse name and keeps the box fallback', () => {
  const locations = _private.buildPackLocationMap([
    {
      skuId: 'PART-1-1',
      warehouseId: 1,
      warehouseName: '常州简尚家居有限公司',
      binGroup: null,
      bin: '',
      packId: 'BOX-1',
      qty: 3,
    },
    {
      skuId: 'PART-1-2',
      warehouseId: 1,
      warehouseName: '常州简尚家居有限公司',
      binGroup: '成品区',
      bin: 'A-01',
      packId: 'BOX-2',
      qty: 1,
    },
  ], ['PART-1']);

  assert.equal(
    locations.get('PART-1'),
    '常州简尚家居有限公司 · 箱号 BOX-1、常州简尚家居有限公司 · 成品区 / A-01'
  );
});

test('pack inventory location falls back to the warehouse id when the name is missing', () => {
  const locations = _private.buildPackLocationMap([
    { skuId: 'PART-1-1', warehouseId: 4, warehouseName: null, bin: '', packId: 'BOX-9', qty: 1 },
  ], ['PART-1']);

  assert.equal(locations.get('PART-1'), '仓库 4 · 箱号 BOX-9');
});

test('pack inventory location chunk size stays under the MSSQL parameter limit', () => {
  // 每个编码占 2 个参数（精确匹配 @lcN + 带后缀前缀匹配 @lpN），MSSQL 单语句上限 2100
  assert.equal(_private.COMPONENT_LOCATION_CHUNK_SIZE * 2 <= 2000, true);
});

// ── 配件不足 / 可组装数（见服务文件头 ⑪）──────────────────────────
test('component readiness: assemblable qty is limited by the tightest component', () => {
  const components = [
    { barcode: 'A', name: '配件A', qty: 1 },
    { barcode: 'B', name: '配件B', qty: 2 },
  ];
  // A: floor(10 / 1) = 10，B: floor(7 / 2) = 3 → 木桶短板是 B
  const ready = _private.buildComponentReadiness(components, new Map([['A', 10], ['B', 7]]), new Map());

  assert.equal(ready.assemblableQty, 3);
  assert.equal(ready.shortage, false);
  assert.equal(ready.bottlenecks[0].code, 'B');
  assert.equal(ready.bottlenecks[0].can, 3);
  // Tooltip 要能显示「单台用量」，不能默认当 1
  assert.equal(ready.bottlenecks[0].perQty, 2);
});

test('component readiness: zero assemblable qty marks 配件不足', () => {
  const components = [
    { barcode: 'A', name: '配件A', qty: 1 },
    { barcode: 'B', name: '配件B', qty: 1 },
  ];
  // B 在该仓没有库存记录 → 视为 0（loadComponentStock 会缓存 0），一台都凑不出来
  const ready = _private.buildComponentReadiness(components, new Map([['A', 500]]), new Map());

  assert.equal(ready.assemblableQty, 0);
  assert.equal(ready.shortage, true);
  assert.equal(ready.bottlenecks[0].code, 'B');
  assert.equal(ready.bottlenecks[0].stock, 0);
  assert.equal(ready.bottlenecks[0].available, 0);
});

test('component readiness: pending work order occupation is deducted from stock', () => {
  const components = [{ barcode: 'A', name: '配件A', qty: 2 }];
  // 库存 10、单台用量 2 → 5 台；扣掉加工单占用 6 件 → floor((10 − 6) / 2) = 2
  const ready = _private.buildComponentReadiness(
    components,
    new Map([['A', 10]]),
    new Map([['A', 6]])
  );
  assert.equal(ready.assemblableQty, 2);
  assert.equal(ready.bottlenecks[0].occupied, 6);
  assert.equal(ready.bottlenecks[0].available, 4);

  // 占用超过库存 → 可支配数归 0，不能算成负数
  const exhausted = _private.buildComponentReadiness(
    components,
    new Map([['A', 10]]),
    new Map([['A', 20]])
  );
  assert.equal(exhausted.assemblableQty, 0);
  assert.equal(exhausted.shortage, true);
  assert.equal(exhausted.bottlenecks[0].available, 0);
});

test('component readiness: missing BOM detail means unknown, not 配件不足', () => {
  // 没有配件明细 → 判不了（组件缺失 ≠ 配件不足），返回 null 让调用方跳过标记
  assert.equal(_private.buildComponentReadiness([], new Map(), new Map()), null);
  assert.equal(_private.buildComponentReadiness(null, new Map(), new Map()), null);
  assert.equal(_private.buildComponentReadiness(undefined, new Map(), new Map()), null);
});

test('component occupation: pending work orders expand into component quantities', () => {
  const bomBySku = new Map([['MKHA1', [
    { barcode: 'A', qty: 2 },
    { barcode: 'B', qty: 1 },
  ]]]);
  const occupation = _private.buildComponentOccupation([
    { skuId: 'MKHA1', pendingWorkOrderQty: 5 },
    // 加工单商品没有 BOM → 不产生占用（不抛错、不写脏数据）
    { skuId: 'MKH-NO-BOM', pendingWorkOrderQty: 9 },
    // 在途 0 或非数字 → 忽略
    { skuId: 'MKHA1', pendingWorkOrderQty: 0 },
    { skuId: 'MKHA1', pendingWorkOrderQty: null },
  ], bomBySku);

  assert.equal(occupation.get('A'), 10);
  assert.equal(occupation.get('B'), 5);
  assert.equal(occupation.size, 2);
});

test('component shortage keeps the business-confirmed source and scope', () => {
  // 配件库存只认半成品包装仓、只判现有库存（不含采购在途）
  assert.equal(_private.COMPONENT_STOCK_WMS_CO_ID, 15718196);
  assert.equal(_private.COMPONENT_STOCK_WAREHOUSE, '简尚-崔桥工厂半成品包装项目仓');
  // 每个编码占 1 个参数，MSSQL 单语句上限 2100
  assert.equal(_private.COMPONENT_STOCK_CHUNK_SIZE <= 2000, true);
  assert.equal(typeof _private.loadComponentStock, 'function');
  assert.equal(typeof _private.loadMkhComponentReadiness, 'function');
});

test('export: 配件不足 rows are flagged and carry no replenish target', () => {
  const rows = _private.buildProductExportRows([
    {
      row: {
        skuId: 'MKHDNZ0409260600843',
        productName: 'K字单板基础',
        warningLevel: '缺货',
        dailySale: 0,
        stock: 0,
        pendingOrderQty: 1,
        replenishQty: 1,
        componentShortage: true,
        assemblableQty: 0,
      },
      components: [{ barcode: 'DNZ040958N1440V01', name: '白架通用前拉杆', qty: 1 }],
    },
  ]);

  assert.equal(rows[0].componentShortage, '配件不足');
  // 可组装数一并导出，便于业务核对短板
  assert.equal(rows[0].assemblableQty, 0);
});