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

"use strict";

// This file assumes we have head.js globals for the scope where this is loaded.
/* import-globals-from head.js */

/* exported initTab, checkCacheStateForAllTabs, setDisableCacheCheckboxChecked,
            finishUp */

// Common code shared by browser_toolbox_options_disable_cache-*.js
const TEST_URI = URL_ROOT + "browser_toolbox_options_disable_cache.sjs";
var tabs = [
  {
    title: "Tab 0",
    desc: "Toggles cache on.",
    startToolbox: true,
  },
  {
    title: "Tab 1",
    desc: "Toolbox open before Tab 1 toggles cache.",
    startToolbox: true,
  },
  {
    title: "Tab 2",
    desc: "Opens toolbox after Tab 1 has toggled cache. Also closes and opens.",
    startToolbox: false,
  },
  {
    title: "Tab 3",
    desc: "No toolbox",
    startToolbox: false,
  },
];

async function initTab(tabX, startToolbox) {
  tabX.tab = await addTab(TEST_URI);
  tabX.target = await TargetFactory.forTab(tabX.tab);

  if (startToolbox) {
    tabX.toolbox = await gDevTools.showToolbox(tabX.target, "options");
  }
}

async function checkCacheStateForAllTabs(states) {
  for (let i = 0; i < tabs.length; i++) {
    const tab = tabs[i];
    await checkCacheEnabled(tab, states[i]);
  }
}

async function checkCacheEnabled(tabX, expected) {
  gBrowser.selectedTab = tabX.tab;

  await reloadTab(tabX);

  const oldGuid = await SpecialPowers.spawn(
    gBrowser.selectedBrowser,
    [],
    function() {
      const doc = content.document;
      const h1 = doc.querySelector("h1");
      return h1.textContent;
    }
  );

  await reloadTab(tabX);

  const guid = await SpecialPowers.spawn(
    gBrowser.selectedBrowser,
    [],
    function() {
      const doc = content.document;
      const h1 = doc.querySelector("h1");
      return h1.textContent;
    }
  );

  if (expected) {
    is(guid, oldGuid, tabX.title + " cache is enabled");
  } else {
    isnot(guid, oldGuid, tabX.title + " cache is not enabled");
  }
}

async function setDisableCacheCheckboxChecked(tabX, state) {
  gBrowser.selectedTab = tabX.tab;

  const panel = tabX.toolbox.getCurrentPanel();
  const cbx = panel.panelDoc.getElementById("devtools-disable-cache");

  if (cbx.checked !== state) {
    info("Setting disable cache checkbox to " + state + " for " + tabX.title);
    const onReconfigured = tabX.toolbox.once("cache-reconfigured");
    cbx.click();

    // We have to wait for the reconfigure request to be finished before reloading
    // the page.
    await onReconfigured;
  }
}

function reloadTab(tabX) {
  const browser = gBrowser.selectedBrowser;

  const reloadTabPromise = BrowserTestUtils.browserLoaded(browser).then(
    function() {
      info("Reloaded tab " + tabX.title);
    }
  );

  info("Reloading tab " + tabX.title);
  SpecialPowers.spawn(browser, [], () => {
    content.location.reload(false);
  });

  return reloadTabPromise;
}

async function destroyTab(tabX) {
  const toolbox = gDevTools.getToolbox(tabX.target);

  let onceDestroyed = promise.resolve();
  if (toolbox) {
    onceDestroyed = gDevTools.once("toolbox-destroyed");
  }

  info("Removing tab " + tabX.title);
  gBrowser.removeTab(tabX.tab);
  info("Removed tab " + tabX.title);

  info("Waiting for toolbox-destroyed");
  await onceDestroyed;
}

async function finishUp() {
  for (const tab of tabs) {
    await destroyTab(tab);
  }

  tabs = null;
}
