<!DOCTYPE html>
<html>
<head>
  <script src='/resources/testharness.js'></script>
  <script src='/resources/testharnessreport.js'></script>
  <script src='/common/get-host-info.sub.js'></script>
  <script src='/webcodecs/utils.js'></script>
  <script id='workerCode' type='javascript/worker'>
    self.onmessage = (e) => {
      postMessage(e.data);
    };
  </script>
  <script id='sharedWorkerCode' type='javascript/worker'>
    let received = new Map();
    self.onconnect = function (event) {
      const port = event.ports[0];
      port.onmessage = function (e) {
        if (e.data == 'create-chunk') {
          let chunkOrError = null;
          try {
            chunkOrError = new EncodedVideoChunk({
              type: 'key',
              timestamp: 0,
              duration: 1,
              data: new Uint8Array([2, 3, 4, 5])
            });
          } catch (error) {
            chunkOrError = error
          }
          port.postMessage(chunkOrError);
          return;
        }
        if (e.data.hasOwnProperty('id')) {
          port.postMessage(
            received.get(e.data.id) ? 'RECEIVED' : 'NOT_RECEIVED');
          return;
        }
        if (e.data.toString() == '[object EncodedVideoChunk]') {
          received.set(e.data.timestamp, e.data);
        }
      };
    };
  </script>
</head>
<body>
<script>
const HELPER = '/webcodecs/encodedVideoChunk-serialization.crossAgentCluster.helper.html';
const SAMEORIGIN_BASE = get_host_info().HTTPS_ORIGIN;
const CROSSORIGIN_BASE = get_host_info().HTTPS_NOTSAMESITE_ORIGIN;
const SAMEORIGIN_HELPER = SAMEORIGIN_BASE + HELPER;
const CROSSORIGIN_HELPER = CROSSORIGIN_BASE + HELPER;
const SERVICE_WORKER = 'serialization.crossAgentCluster.serviceworker.js';

promise_test(async () => {
  const target = (await appendIframe(SAMEORIGIN_HELPER)).contentWindow;
  let chunk = createEncodedVideoChunk(10);
  assert_true(await canSerializeEncodedVideoChunk(target, chunk));
}, 'Verify chunks can be passed within the same agent clusters');

promise_test(async () => {
  const target = (await appendIframe(CROSSORIGIN_HELPER)).contentWindow;
  let chunk = createEncodedVideoChunk(20);
  assert_false(await canSerializeEncodedVideoChunk(target, chunk));
}, 'Verify chunks cannot be passed accross the different agent clusters');

promise_test(async () => {
  const blob = new Blob([document.querySelector('#workerCode').textContent], {
    type: 'text/javascript',
  });
  const worker = new Worker(window.URL.createObjectURL(blob));
  let chunk = createEncodedVideoChunk(30);
  worker.postMessage(chunk);
  const received = await new Promise(resolve => worker.onmessage = e => {
    resolve(e.data);
  });
  assert_equals(received.toString(), '[object EncodedVideoChunk]');
  assert_equals(received.timestamp, 30);
}, 'Verify chunks can be passed back and forth between main and worker');

promise_test(async () => {
  const encodedScriptText = btoa("self.onmessage = (e) => { postMessage(e.data);};");
  const scriptURL = 'data:text/javascript;base64,' + encodedScriptText;
  const worker = new Worker(scriptURL);
  let chunk = createEncodedVideoChunk(40);
  worker.postMessage(chunk);
  const received = await new Promise(resolve => worker.onmessage = e => {
    resolve(e.data);
  });
  assert_equals(received.toString(), '[object EncodedVideoChunk]');
  assert_equals(received.timestamp, 40);

}, 'Verify chunks can be passed back and forth between main and data-url worker');

promise_test(async () => {
  const blob = new Blob([document.querySelector('#sharedWorkerCode').textContent], {
    type: 'text/javascript',
  });
  const worker = new SharedWorker(window.URL.createObjectURL(blob));
  let chunk = createEncodedVideoChunk(50);
  worker.port.postMessage(chunk);
  worker.port.postMessage({'id': 50});
  const received = await new Promise(resolve => worker.port.onmessage = e => {
    resolve(e.data);
  });
  assert_equals(received, 'NOT_RECEIVED');
}, 'Verify chunks cannot be passed to sharedworker');

promise_test(async () => {
  navigator.serviceWorker.register(SERVICE_WORKER);
  navigator.serviceWorker.ready.then((registration) => {
    let chunk = createEncodedVideoChunk(60);
    registration.active.postMessage(chunk);
    registration.active.postMessage({'encodedVideoChunkId': 60});
  });
  const received = await new Promise(resolve =>
    navigator.serviceWorker.onmessage = (e) => { resolve(e.data); });
  assert_equals(received, 'NOT_RECEIVED');
}, 'Verify chunks cannot be passed to serviceworker');

promise_test(async () => {
  const blob = new Blob([document.querySelector('#sharedWorkerCode').textContent], {
    type: 'text/javascript',
  });
  const worker = new SharedWorker(window.URL.createObjectURL(blob));
  worker.port.postMessage('create-chunk');
  const received = await new Promise(resolve => worker.port.onmessage = e => {
    resolve(e.data);
  });
  assert_true(received instanceof ReferenceError);
}, 'Verify chunks is unavailable in sharedworker');

promise_test(async () => {
  navigator.serviceWorker.register(SERVICE_WORKER);
  let registration = await navigator.serviceWorker.ready;
  registration.active.postMessage('create-EncodedVideoChunk');
  const received = await new Promise(resolve =>
    navigator.serviceWorker.onmessage = (e) => { resolve(e.data); });
  assert_true(received instanceof ReferenceError);
}, 'Verify chunks is unavailable in serviceworker');

function appendIframe(src) {
  const frame = document.createElement('iframe');
  document.body.appendChild(frame);
  frame.src = src;
  return new Promise(resolve => frame.onload = () => resolve(frame));
};

function createEncodedVideoChunk(ts) {
  return new EncodedVideoChunk({
    type: 'key',
    timestamp: ts,
    duration: 1234,
    data: new Uint8Array([5, 6, 7, 8])
  });
}

function canSerializeEncodedVideoChunk(target, chunk) {
  target.postMessage(chunk, '*');
  target.postMessage({'id': chunk.timestamp}, '*');
  return new Promise(resolve => window.onmessage = e => {
    resolve(e.data == 'RECEIVED');
  });
};
</script>
</body>
</html>