import { strict as assert } from "node:assert";
import { describe, it } from "node:test";

import {
  DEFAULT_EMAIL_BODY_DE_PAID,
  DEFAULT_EMAIL_BODY_DE_UNPAID,
  DEFAULT_EMAIL_BODY_EN_PAID,
  DEFAULT_EMAIL_BODY_EN_UNPAID,
} from "../app/services/invoice/emailTemplates";

describe("invoice email templates (paid vs unpaid)", () => {
  const HINT_EN = /bank transfer/i;
  const HINT_DE = /Überweisung/i;

  it("unpaid defaults keep the bank-transfer reference hint", () => {
    assert.match(DEFAULT_EMAIL_BODY_EN_UNPAID, HINT_EN);
    assert.match(DEFAULT_EMAIL_BODY_EN_UNPAID, /\{\{invoiceNumber\}\}/);
    assert.match(DEFAULT_EMAIL_BODY_DE_UNPAID, HINT_DE);
    assert.match(DEFAULT_EMAIL_BODY_DE_UNPAID, /\{\{invoiceNumber\}\}/);
  });

  it("paid defaults omit the bank-transfer reference hint", () => {
    assert.doesNotMatch(DEFAULT_EMAIL_BODY_EN_PAID, HINT_EN);
    assert.doesNotMatch(DEFAULT_EMAIL_BODY_DE_PAID, HINT_DE);
  });

  it("paid and unpaid variants otherwise share header/footer structure", () => {
    for (const tpl of [
      DEFAULT_EMAIL_BODY_EN_PAID,
      DEFAULT_EMAIL_BODY_EN_UNPAID,
      DEFAULT_EMAIL_BODY_DE_PAID,
      DEFAULT_EMAIL_BODY_DE_UNPAID,
    ]) {
      assert.match(tpl, /cid:invoice-logo/);
      assert.match(tpl, /\{\{companyName\}\}/);
      assert.match(tpl, /\{\{shopEmail\}\}/);
    }
  });
});