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

ChromeUtils.defineESModuleGetters(this, {
  ASRouter: "resource:///modules/asrouter/ASRouter.sys.mjs",
  ExperimentAPI: "resource://nimbus/ExperimentAPI.sys.mjs",
  NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
  NimbusTestUtils: "resource://testing-common/NimbusTestUtils.sys.mjs",
  sinon: "resource://testing-common/Sinon.sys.mjs",
});

const setDefaultBrowserUserChoiceStub = async () => {
  throw Components.Exception("", Cr.NS_ERROR_WDBA_NO_PROGID);
};

const defaultAgentStub = sinon
  .stub(ShellService, "defaultAgent")
  .value({ setDefaultBrowserUserChoiceAsync: setDefaultBrowserUserChoiceStub });

const _userChoiceImpossibleTelemetryResultStub = sinon
  .stub(ShellService, "_userChoiceImpossibleTelemetryResult")
  .callsFake(() => null);

const userChoiceStub = sinon
  .stub(ShellService, "setAsDefaultUserChoice")
  .resolves();
const setDefaultStub = sinon.stub();
const shellStub = sinon
  .stub(ShellService, "shellService")
  .value({ setDefaultBrowser: setDefaultStub });

const sendTriggerStub = sinon.stub(ASRouter, "sendTriggerMessage");

registerCleanupFunction(() => {
  sinon.restore();
});

let defaultUserChoice;
add_task(async function need_user_choice() {
  await ShellService.setDefaultBrowser();
  defaultUserChoice = userChoiceStub.called;

  Assert.ok(
    defaultUserChoice !== undefined,
    "Decided which default browser method to use"
  );
  Assert.equal(
    setDefaultStub.notCalled,
    defaultUserChoice,
    "Only one default behavior was used"
  );
});

add_task(async function remote_disable() {
  if (defaultUserChoice === false) {
    info("Default behavior already not user choice, so nothing to test");
    return;
  }

  userChoiceStub.resetHistory();
  setDefaultStub.resetHistory();
  let doCleanup = await NimbusTestUtils.enrollWithFeatureConfig(
    {
      featureId: NimbusFeatures.shellService.featureId,
      value: {
        setDefaultBrowserUserChoice: false,
        enabled: true,
      },
    },
    { isRollout: true }
  );

  await ShellService.setDefaultBrowser();

  Assert.ok(
    userChoiceStub.notCalled,
    "Set default with user choice disabled via nimbus"
  );
  Assert.ok(setDefaultStub.called, "Used plain set default instead");

  await doCleanup();
});

add_task(async function restore_default() {
  if (defaultUserChoice === undefined) {
    info("No default user choice behavior set, so nothing to test");
    return;
  }

  userChoiceStub.resetHistory();
  setDefaultStub.resetHistory();

  await ShellService.setDefaultBrowser();

  Assert.equal(
    userChoiceStub.called,
    defaultUserChoice,
    "Set default with user choice restored to original"
  );
  Assert.equal(
    setDefaultStub.notCalled,
    defaultUserChoice,
    "Plain set default behavior restored to original"
  );
});

add_task(async function ensure_fallback() {
  if (AppConstants.platform != "win") {
    info("Nothing to test on non-Windows");
    return;
  }

  let userChoicePromise = Promise.resolve();
  userChoiceStub.callsFake(function (...args) {
    return (userChoicePromise = userChoiceStub.wrappedMethod.apply(this, args));
  });
  userChoiceStub.resetHistory();
  setDefaultStub.resetHistory();
  let doCleanup = await NimbusTestUtils.enrollWithFeatureConfig(
    {
      featureId: NimbusFeatures.shellService.featureId,
      value: {
        setDefaultBrowserUserChoice: true,
        setDefaultPDFHandler: false,
        enabled: true,
      },
    },
    { isRollout: true }
  );

  await ShellService.setDefaultBrowser();

  Assert.ok(userChoiceStub.called, "Set default with user choice called");

  let message = "";
  await userChoicePromise.catch(err => (message = err.message || ""));

  Assert.ok(
    message.includes("ErrExeProgID"),
    "Set default with user choice threw an expected error"
  );
  Assert.ok(setDefaultStub.called, "Fallbacked to plain set default");

  await doCleanup();
});

async function setUpNotificationTests(guidanceEnabled, oneClick) {
  sinon.reset();
  const experimentCleanup = await NimbusTestUtils.enrollWithFeatureConfig(
    {
      featureId: NimbusFeatures.shellService.featureId,
      value: {
        setDefaultGuidanceNotifications: guidanceEnabled,
        setDefaultBrowserUserChoice: oneClick,
        setDefaultBrowserUserChoiceRegRename: oneClick,
        enabled: true,
      },
    },
    { isRollout: true }
  );

  const doCleanup = async () => {
    await experimentCleanup();
    sinon.reset();
  };

  await ShellService.setDefaultBrowser();
  return doCleanup;
}

add_task(
  async function show_notification_when_set_to_default_guidance_enabled_and_one_click_disabled() {
    if (!AppConstants.isPlatformAndVersionAtLeast("win", 10)) {
      info("Nothing to test on non-Windows or older Windows versions");
      return;
    }
    const doCleanup = await setUpNotificationTests(
      true, // guidance enabled
      false // one-click disabled
    );

    Assert.ok(setDefaultStub.called, "Fallback method used to set default");

    Assert.equal(
      sendTriggerStub.firstCall.args[0].id,
      "deeplinkedToWindowsSettingsUI",
      `Set to default guidance message trigger was sent`
    );

    await doCleanup();
  }
);

add_task(
  async function do_not_show_notification_when_set_to_default_guidance_disabled_and_one_click_enabled() {
    if (!AppConstants.isPlatformAndVersionAtLeast("win", 10)) {
      info("Nothing to test on non-Windows or older Windows versions");
      return;
    }

    const doCleanup = await setUpNotificationTests(
      false, // guidance disabled
      true // one-click enabled
    );

    Assert.ok(setDefaultStub.notCalled, "Fallback method not called");

    Assert.equal(
      sendTriggerStub.callCount,
      0,
      `Set to default guidance message trigger was not sent`
    );

    await doCleanup();
  }
);

add_task(
  async function do_not_show_notification_when_set_to_default_guidance_enabled_and_one_click_enabled() {
    if (!AppConstants.isPlatformAndVersionAtLeast("win", 10)) {
      info("Nothing to test on non-Windows or older Windows versions");
      return;
    }

    const doCleanup = await setUpNotificationTests(
      true, // guidance enabled
      true // one-click enabled
    );

    Assert.ok(setDefaultStub.notCalled, "Fallback method not called");
    Assert.equal(
      sendTriggerStub.callCount,
      0,
      `Set to default guidance message trigger was not sent`
    );
    await doCleanup();
  }
);