import { describe, expect, it } from "vitest";
import fs from "fs";
import path from "path";
import ExcelJS from "exceljs";
import {
  findPackingHeaderRowIndex,
  isMergedSlaveCell,
  isPackingFooterNoiseRow,
  isPackingTitleNoiseRow,
  readWorksheetGrid,
} from "@/services/parse/excel-sheet-grid";
import { parsePackingListBuffer } from "@/services/parse/packing-list";

describe("excel-sheet-grid", () => {
  it("finds Chinese header row on merged 数据模版", async () => {
    const file = path.join(
      process.cwd(),
      "docx",
      "邮件",
      "模板",
      "数据模版.xlsx",
    );
    const wb = new ExcelJS.Workbook();
    await wb.xlsx.readFile(file);
    const grid = readWorksheetGrid(wb.worksheets[0]);
    expect(isPackingTitleNoiseRow(grid[0])).toBe(true);
    expect(findPackingHeaderRowIndex(grid)).toBe(2);
    expect(grid[2].join("|")).toMatch(/件数.*渠道.*仓库/);
  });

  it("treats merged slaves as empty", async () => {
    const file = path.join(
      process.cwd(),
      "docx",
      "邮件",
      "模板",
      "数据模版.xlsx",
    );
    const wb = new ExcelJS.Workbook();
    await wb.xlsx.readFile(file);
    const ws = wb.worksheets[0];
    const master = ws.getCell("B4");
    const slave = ws.getCell("B5");
    expect(isMergedSlaveCell(master)).toBe(false);
    expect(isMergedSlaveCell(slave)).toBe(true);
    const grid = readWorksheetGrid(ws);
    expect(grid[3][1]).toBe("可不填");
    expect(grid[4][1]).toBe("");
  });

  it("detects footer 注意 merged note row", () => {
    const cells = [
      "注意：1.ups和fedex的件请直接在渠道栏对应写上ups和fedex",
      "注意：1.ups和fedex的件请直接在渠道栏对应写上ups和fedex",
    ];
    expect(
      isPackingFooterNoiseRow({ F_Transporter: cells[0] }, cells),
    ).toBe(true);
  });
});

describe("数据模版.xlsx merged template", () => {
  it("parses structured region and skips footer note", async () => {
    const file = path.join(
      process.cwd(),
      "docx",
      "邮件",
      "模板",
      "数据模版.xlsx",
    );
    const buf = fs.readFileSync(file);
    const parsed = await parsePackingListBuffer(buf, { enableIsoCheck: false });
    expect(parsed.errorCode).toBeUndefined();
    expect(parsed.lineage.header_row).toBe(3);
    expect(parsed.shipments.length).toBe(33);
    expect(
      parsed.shipments.every(
        (s) => !String(s.F_Address || "").startsWith("注意"),
      ),
    ).toBe(true);
    expect(
      parsed.shipments.every(
        (s) => !String(s.F_Transporter || "").startsWith("注意"),
      ),
    ).toBe(true);
    const las1 = parsed.shipments.find((s) => s.F_FBAID === "FBA16SQQ7PTF");
    expect(las1?.F_Contact).toBe("LAS1");
    expect(las1?.F_Address).toBe("12300 Bermuda Road");
  });
});