import { expect, test } from "bun:test";
import { I18N_RUNTIME, renderI18nData, renderI18nDataTag, resolveI18n } from "../src/index.ts";

const i18n = resolveI18n({ en: { hello: "Hello" }, es: { hello: "Hola" } }, { default: "en" });

test("the i18n payload is plain JSON, not an assignment", () => {
  const data = renderI18nData(i18n, "en");
  expect(() => JSON.parse(data)).not.toThrow();
  expect(data).not.toContain("window.__wrnI18n");
});

test("the data tag is a non-executable JSON block", () => {
  // An executable inline script is subject to script-src and gets blocked
  // whenever the document's CSP nonce came from a different response, which is
  // what left window.__wrnI18n undefined. A JSON block is never executed.
  const tag = renderI18nDataTag(i18n, "es");
  expect(tag).toContain('type="application/json"');
  expect(tag).toContain("data-wrn-i18n");
  expect(tag).not.toContain("nonce=");
  expect(tag).toContain("Hola");
});

test("the i18n runtime reads the data block instead of relying on an inline assignment", () => {
  expect(I18N_RUNTIME).toContain('script[type="application/json"][data-wrn-i18n]');
});