import { expect, it, test } from "bun:test";

test("exists", () => {
  expect(typeof URL !== "undefined").toBe(true);
  expect(typeof URLSearchParams !== "undefined").toBe(true);
  expect(typeof DOMException !== "undefined").toBe(true);
  expect(typeof Event !== "undefined").toBe(true);
  expect(typeof EventTarget !== "undefined").toBe(true);
  expect(typeof AbortController !== "undefined").toBe(true);
  expect(typeof AbortSignal !== "undefined").toBe(true);
  expect(typeof CustomEvent !== "undefined").toBe(true);
  expect(typeof Headers !== "undefined").toBe(true);
  expect(typeof ErrorEvent !== "undefined").toBe(true);
  expect(typeof CloseEvent !== "undefined").toBe(true);
  expect(typeof MessageEvent !== "undefined").toBe(true);
  expect(typeof TextEncoder !== "undefined").toBe(true);
  expect(typeof WebSocket !== "undefined").toBe(true);
  expect(typeof Blob !== "undefined").toBe(true);
});

test("CloseEvent", () => {
  var event = new CloseEvent("close", { reason: "world" });
  expect(event.type).toBe("close");
  const target = new EventTarget();
  var called = false;
  target.addEventListener("close", ({ type, reason }) => {
    expect(type).toBe("close");
    expect(reason).toBe("world");
    called = true;
  });
  target.dispatchEvent(event);
  expect(called).toBe(true);
});

test("MessageEvent", () => {
  var event = new MessageEvent("message", { data: "world" });
  expect(event.type).toBe("message");
  const target = new EventTarget();
  var called = false;
  target.addEventListener("message", ({ type, data }) => {
    expect(type).toBe("message");
    expect(data).toBe("world");
    called = true;
  });
  target.dispatchEvent(event);
  expect(called).toBe(true);
});

it("crypto.getRandomValues", () => {
  var foo = new Uint8Array(32);

  // run it once buffered and unbuffered
  {
    var array = crypto.getRandomValues(foo);
    expect(array).toBe(foo);
    expect(array.reduce((sum, a) => (sum += a === 0), 0) != foo.length).toBe(
      true
    );
  }

  // run it again to check that the fast path works
  for (var i = 0; i < 9000; i++) {
    var array = crypto.getRandomValues(foo);
    expect(array).toBe(foo);
  }

  // run it on a large input
  expect(
    !!crypto.getRandomValues(new Uint8Array(8096)).find((a) => a > 0)
  ).toBe(true);

  {
    // any additional input into getRandomValues() makes it unbuffered
    var array = crypto.getRandomValues(foo, "unbuffered");
    expect(array).toBe(foo);
    expect(array.reduce((sum, a) => (sum += a === 0), 0) != foo.length).toBe(
      true
    );
  }
});

it("crypto.randomUUID", () => {
  var uuid = crypto.randomUUID();
  expect(uuid.length).toBe(36);
  expect(uuid[8]).toBe("-");
  expect(uuid[13]).toBe("-");
  expect(uuid[18]).toBe("-");
  expect(uuid[23]).toBe("-");

  // check that the fast path works
  for (let i = 0; i < 9000; i++) {
    var uuid2 = crypto.randomUUID();
    expect(uuid2.length).toBe(36);
    expect(uuid2[8]).toBe("-");
    expect(uuid2[13]).toBe("-");
    expect(uuid2[18]).toBe("-");
    expect(uuid2[23]).toBe("-");
  }
});

it("URL.prototype.origin", () => {
  const url = new URL("https://html.spec.whatwg.org/");
  const { origin, host, hostname } = url;

  expect(hostname).toBe("html.spec.whatwg.org");
  expect(host).toBe("html.spec.whatwg.org");
  expect(origin).toBe("https://html.spec.whatwg.org");
});

test("navigator", () => {
  expect(globalThis.navigator !== undefined).toBe(true);
  const version = process.versions.bun;
  const userAgent = `Bun/${version}`;
  expect(navigator.hardwareConcurrency > 0).toBe(true);
  expect(navigator.userAgent).toBe(userAgent);
});
