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

/**
 * Tests that the frontend is disabled when in private browsing mode.
 */

const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
const {
  initPerformanceInNewTab,
  teardownToolboxAndRemoveTab,
} = require("devtools/client/performance/test/helpers/panel-utils");
const {
  startRecording,
  stopRecording,
} = require("devtools/client/performance/test/helpers/actions");
const {
  once,
} = require("devtools/client/performance/test/helpers/event-utils");

let gPanelWinTuples = [];

add_task(async function() {
  await testNormalWindow();
  await testPrivateWindow();
  await testRecordingFailingInWindow(0);
  await testRecordingFailingInWindow(1);
  await teardownPerfInWindow(1, { shouldCloseWindow: true });
  await testRecordingSucceedingInWindow(0);
  await teardownPerfInWindow(0, { shouldCloseWindow: false });

  gPanelWinTuples = null;
});

async function createPanelInNewWindow(options) {
  const win = await BrowserTestUtils.openNewBrowserWindow(options);
  return createPanelInWindow(options, win);
}

async function createPanelInWindow(options, win = window) {
  const { panel } = await initPerformanceInNewTab(
    {
      url: SIMPLE_URL,
      win: win,
    },
    options
  );

  gPanelWinTuples.push({ panel, win });
  return { panel, win };
}

async function testNormalWindow() {
  const { panel } = await createPanelInWindow({
    private: false,
  });

  const { PerformanceView } = panel.panelWin;

  is(
    PerformanceView.getState(),
    "empty",
    "The initial state of the performance panel view is correct (1)."
  );
}

async function testPrivateWindow() {
  const { panel } = await createPanelInNewWindow({
    private: true,
    // The add-on SDK can't seem to be able to listen to "ready" or "close"
    // events for private tabs. Don't really absolutely need to though.
    dontWaitForTabReady: true,
  });

  const { PerformanceView } = panel.panelWin;

  is(
    PerformanceView.getState(),
    "unavailable",
    "The initial state of the performance panel view is correct (2)."
  );
}

async function testRecordingFailingInWindow(index) {
  const { panel } = gPanelWinTuples[index];
  const { EVENTS, PerformanceController } = panel.panelWin;

  const onRecordingStarted = () => {
    ok(false, "Recording should not start while a private window is present.");
  };

  PerformanceController.on(EVENTS.RECORDING_STATE_CHANGE, onRecordingStarted);

  const whenFailed = once(
    PerformanceController,
    EVENTS.BACKEND_FAILED_AFTER_RECORDING_START
  );
  PerformanceController.startRecording();
  await whenFailed;
  ok(true, "Recording has failed.");

  PerformanceController.off(EVENTS.RECORDING_STATE_CHANGE, onRecordingStarted);
}

async function testRecordingSucceedingInWindow(index) {
  const { panel } = gPanelWinTuples[index];
  const { EVENTS, PerformanceController } = panel.panelWin;

  const onRecordingFailed = () => {
    ok(false, "Recording should start while now private windows are present.");
  };

  PerformanceController.on(
    EVENTS.BACKEND_FAILED_AFTER_RECORDING_START,
    onRecordingFailed
  );

  await startRecording(panel);
  await stopRecording(panel);
  ok(true, "Recording has succeeded.");

  PerformanceController.off(
    EVENTS.BACKEND_FAILED_AFTER_RECORDING_START,
    onRecordingFailed
  );
}

async function teardownPerfInWindow(index, options) {
  const { panel, win } = gPanelWinTuples[index];
  await teardownToolboxAndRemoveTab(panel);

  if (options.shouldCloseWindow) {
    win.close();
  }
}