/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const NETWORK_RUNTIME_HOST = "localhost:6080";
const NETWORK_RUNTIME_APP_NAME = "TestNetworkApp";
const USB_RUNTIME_ID = "test-runtime-id";
const USB_RUNTIME_DEVICE_NAME = "test device name";
const USB_RUNTIME_APP_NAME = "TestUsbApp";

const TESTS = [
  {
    category: "Other Workers",
    propertyName: "otherWorkers",
    workerName: "other/worker/script.js",
  },
  {
    category: "Service Workers",
    propertyName: "serviceWorkers",
    workerName: "service/worker/script.js",
  },
  {
    category: "Shared Workers",
    propertyName: "sharedWorkers",
    workerName: "shared/worker/script.js",
  },
];

const EMPTY_WORKERS_RESPONSE = {
  otherWorkers: [],
  serviceWorkers: [],
  sharedWorkers: [],
};

// Test that workers are displayed and updated for remote runtimes when expected.
add_task(async function() {
  const mocks = new Mocks();

  const { document, tab, window } = await openAboutDebugging({
    enableWorkerUpdates: true,
  });
  await selectThisFirefoxPage(document, window.AboutDebugging.store);

  info("Prepare USB client mock");
  const usbClient = mocks.createUSBRuntime(USB_RUNTIME_ID, {
    deviceName: USB_RUNTIME_DEVICE_NAME,
    name: USB_RUNTIME_APP_NAME,
  });
  mocks.emitUSBUpdate();

  info("Test addons in runtime page for USB client");
  await connectToRuntime(USB_RUNTIME_DEVICE_NAME, document);
  await selectRuntime(USB_RUNTIME_DEVICE_NAME, USB_RUNTIME_APP_NAME, document);
  for (const testData of TESTS) {
    await testWorkerOnMockedRemoteClient(
      testData,
      usbClient,
      mocks.thisFirefoxClient,
      document
    );
  }

  info("Prepare Network client mock");
  const networkClient = mocks.createNetworkRuntime(NETWORK_RUNTIME_HOST, {
    name: NETWORK_RUNTIME_APP_NAME,
  });

  info("Test workers in runtime page for Network client");
  await connectToRuntime(NETWORK_RUNTIME_HOST, document);
  await selectRuntime(NETWORK_RUNTIME_HOST, NETWORK_RUNTIME_APP_NAME, document);

  for (const testData of TESTS) {
    await testWorkerOnMockedRemoteClient(
      testData,
      networkClient,
      mocks.thisFirefoxClient,
      document
    );
  }

  await removeTab(tab);
});

/**
 * Check that workers are visible in the runtime page for a remote client.
 */
async function testWorkerOnMockedRemoteClient(
  testData,
  remoteClient,
  firefoxClient,
  document
) {
  const { category, propertyName, workerName } = testData;
  info(`Test workers for category [${category}] in remote runtime`);

  const workersPane = getDebugTargetPane(category, document);
  info("Check an empty target pane message is displayed");
  ok(
    workersPane.querySelector(".qa-debug-target-list-empty"),
    "Workers list is empty"
  );

  info(`Add a worker of type [${propertyName}] to the remote client`);
  const workers = Object.assign({}, EMPTY_WORKERS_RESPONSE, {
    [propertyName]: [
      {
        name: workerName,
        workerDescriptorFront: {
          actorID: workerName,
        },
      },
    ],
  });
  remoteClient.listWorkers = () => workers;
  remoteClient._eventEmitter.emit("workersUpdated");

  info("Wait until the worker appears");
  await waitUntil(
    () => !workersPane.querySelector(".qa-debug-target-list-empty")
  );

  const workerTarget = findDebugTargetByText(workerName, document);
  ok(workerTarget, "Worker target appeared for the remote runtime");

  // Check that the list of REMOTE workers are NOT updated when the local this-firefox
  // emits a workersUpdated event.
  info("Remove the worker from the remote client WITHOUT sending an event");
  remoteClient.listWorkers = () => EMPTY_WORKERS_RESPONSE;

  info("Simulate a worker update on the ThisFirefox client");
  firefoxClient._eventEmitter.emit("workersUpdated");

  // To avoid wait for a set period of time we trigger another async update, adding a new
  // tab. We assume that if the worker update mechanism had started, it would also be done
  // when the new tab was processed.
  info("Wait until the tab target for 'http://some.random/url.com' appears");
  const testTab = {
    retrieveFavicon: () => {},
    outerWindowID: 0,
    traits: {},
    url: "http://some.random/url.com",
  };
  remoteClient.listTabs = () => [testTab];
  remoteClient._eventEmitter.emit("tabListChanged");
  await waitUntil(() =>
    findDebugTargetByText("http://some.random/url.com", document)
  );

  ok(
    findDebugTargetByText(workerName, document),
    "The test worker is still visible"
  );

  info(
    "Emit `workersUpdated` on remoteClient and wait for the target list to update"
  );
  remoteClient._eventEmitter.emit("workersUpdated");
  await waitUntil(() => !findDebugTargetByText(workerName, document));
}
