import { describe, expect, it } from "vitest";
import { buildPasswordCsv, csvQuote, guardFormula } from "./csv";

describe("csvQuote", () => {
  it("给所有字段加引号并双写内部引号", () => {
    expect(csvQuote("a")).toBe('"a"');
    expect(csvQuote('say "hi"')).toBe('"say ""hi"""');
    expect(csvQuote("a,b")).toBe('"a,b"');
    expect(csvQuote("a\nb")).toBe('"a\nb"');
  });
});

describe("guardFormula", () => {
  it("名称以公式字符开头时前缀单引号", () => {
    expect(guardFormula("=1+1")).toBe("'=1+1");
    expect(guardFormula("+cmd")).toBe("'+cmd");
    expect(guardFormula("-1")).toBe("'-1");
    expect(guardFormula("@SUM")).toBe("'@SUM");
    expect(guardFormula("门口")).toBe("门口");
  });
});

describe("buildPasswordCsv", () => {
  it("带 BOM、表头、CRLF，密码原样加引号", () => {
    const out = buildPasswordCsv([
      { id: "e1", name: "门,口", login_password: 'p"w' },
      { id: "e2", name: "=cmd", login_password: "=1+1" },
    ]);
    expect(out.startsWith("\uFEFF")).toBe(true);
    const body = out.slice(1);
    expect(body.startsWith('"id","name","login_password"\r\n')).toBe(true);
    const rows = body.split("\r\n");
    expect(rows[1]).toBe('"e1","门,口","p""w"');
    expect(rows[2]).toBe('"e2","\'=cmd","=1+1"');
  });
});