'use strict';

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

const {
  normalizeRecords,
  parseWorkbook,
  checkBalance,
} = require('../src/services/dailyInventoryOfficial');

const RECORDS = [
  {
    一级功能按键: '大货库存监控',
    二级功能按键: '每日进销存',
    仓库: '简尚-崔桥工厂仓主仓',
    期初数量: 90811,
    加工进仓: 0,
    采购退货: 0,
    采购进仓: 0,
    其它进仓: 0,
    其它退货: 0,
    销售出仓: -3252,
    盘点: 0,
    加工出仓: 0,
    调拨出: -881,
    销售退货: 0,
    调拨入: 4144,
    期初: 0,
    其它出库: 0,
    期末数量: 90822,
  },
  {
    仓库: '简尚-新外贸仓主仓',
    期初数量: 5165,
    销售出仓: -1743,
    期末数量: 3422,
  },
];

test('normalizeRecords 解析官方导出并映射仓库 ID', () => {
  const { rows, warnings } = normalizeRecords(RECORDS);
  assert.equal(rows.length, 2);
  assert.deepEqual(warnings, []);

  const [cuiqiao] = rows;
  assert.equal(cuiqiao.warehouse, '简尚-崔桥工厂仓主仓');
  assert.equal(cuiqiao.wmsCoId, 15038426); // 来自项目仓库清单
  assert.equal(cuiqiao.openingQty, 90811);
  assert.equal(cuiqiao.closingQty, 90822);
  assert.equal(cuiqiao.flows.salesOut, -3252);
  assert.equal(cuiqiao.flows.transferIn, 4144);
  assert.equal(cuiqiao.flows.otherIn, 0); // 导出里显式为 0 的列保留 0
  // 导出里没有出现的流水列保持 null，不能被当成 0
  assert.equal(rows[1].flows.transferOut, null);
  assert.equal(rows[1].flows.stocktaking, null);
  // 导出里的第二个「期初」列不参与映射
  assert.equal(Object.prototype.hasOwnProperty.call(cuiqiao.flows, 'openingQty'), false);
});

test('normalizeRecords 跳过无仓库名的行，未匹配仓库的 wmsCoId 为 null', () => {
  const { rows } = normalizeRecords([
    { 仓库: '', 期初数量: 1, 期末数量: 1 },
    { 仓库: '某某新仓主仓', 期初数量: 10, 期末数量: 10 },
  ]);
  assert.equal(rows.length, 1);
  assert.equal(rows[0].warehouse, '某某新仓主仓');
  assert.equal(rows[0].wmsCoId, null);
});

test('checkBalance 校验「期初 + 流水 = 期末」，不闭合的仓库会被列出', () => {
  const { rows } = normalizeRecords(RECORDS);
  assert.deepEqual(checkBalance(rows), []);

  const broken = checkBalance([{
    warehouse: '差异仓', openingQty: 100, closingQty: 90, flows: { salesOut: -5 },
  }]);
  assert.equal(broken.length, 1);
  assert.equal(broken[0].diff, 5);
});

test('parseWorkbook 能从 xlsx 缓冲区还原仓库行（表头不在首行也能定位）', () => {
  const grid = [
    ['说明', '这一行是导出时附加的标题'],
    ['一级功能按键', '二级功能按键', '仓库', '期初数量', '销售出仓', '调拨入', '期末数量'],
    ['大货库存监控', '每日进销存', '简尚-崔桥工厂仓主仓', 90811, -3252, 4144, 90822],
    ['', '', '简尚-新外贸仓主仓', 5165, -1743, 0, 3422],
  ];
  const ws = XLSX.utils.aoa_to_sheet(grid);
  const wb = XLSX.utils.book_new();
  XLSX.utils.book_append_sheet(wb, ws, 'Sheet2');
  const buffer = XLSX.write(wb, { type: 'buffer', bookType: 'xlsx' });

  const { rows, sheetName } = parseWorkbook(buffer);
  assert.equal(sheetName, 'Sheet2');
  assert.equal(rows.length, 2);
  assert.equal(rows[0].warehouse, '简尚-崔桥工厂仓主仓');
  assert.equal(rows[0].flows.transferIn, 4144);
  assert.equal(rows[1].closingQty, 3422);
});