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

"use strict";

// NB: This uses some ugly hacks to get into the CUI module from elsewhere...
// don't try this at home, kids.
function test() {
  // Customize something to make sure stuff changed:
  CustomizableUI.addWidgetToArea(
    "save-page-button",
    CustomizableUI.AREA_NAVBAR
  );

  // Check what version we're on:
  let CustomizableUIBSPass = ChromeUtils.import(
    "resource:///modules/CustomizableUI.jsm",
    null
  );

  let oldState = CustomizableUIBSPass.gSavedState;
  registerCleanupFunction(() => (CustomizableUIBSPass.gSavedState = oldState));

  is(
    CustomizableUIBSPass.gFuturePlacements.size,
    0,
    "All future placements should be dealt with by now."
  );

  let {
    CustomizableUIInternal,
    gFuturePlacements,
    gPalette,
  } = CustomizableUIBSPass;
  CustomizableUIInternal._updateForNewVersion();
  is(gFuturePlacements.size, 0, "No change to future placements initially.");

  let currentVersion = CustomizableUIBSPass.kVersion;

  // Add our widget to the defaults:
  let testWidgetNew = {
    id: "test-messing-with-default-placements-new",
    label: "Test messing with default placements - should be inserted",
    defaultArea: CustomizableUI.AREA_NAVBAR,
    introducedInVersion: currentVersion + 1,
  };

  let normalizedWidget = CustomizableUIInternal.normalizeWidget(
    testWidgetNew,
    CustomizableUI.SOURCE_BUILTIN
  );
  ok(normalizedWidget, "Widget should be normalizable");
  if (!normalizedWidget) {
    return;
  }
  CustomizableUIBSPass.gPalette.set(testWidgetNew.id, normalizedWidget);

  let testWidgetOld = {
    id: "test-messing-with-default-placements-old",
    label: "Test messing with default placements - should NOT be inserted",
    defaultArea: CustomizableUI.AREA_NAVBAR,
    introducedInVersion: currentVersion,
  };

  normalizedWidget = CustomizableUIInternal.normalizeWidget(
    testWidgetOld,
    CustomizableUI.SOURCE_BUILTIN
  );
  ok(normalizedWidget, "Widget should be normalizable");
  if (!normalizedWidget) {
    return;
  }
  CustomizableUIBSPass.gPalette.set(testWidgetOld.id, normalizedWidget);

  // Now increase the version in the module:
  CustomizableUIBSPass.kVersion++;

  let hadSavedState = !!CustomizableUIBSPass.gSavedState;
  if (!hadSavedState) {
    CustomizableUIBSPass.gSavedState = {
      currentVersion: CustomizableUIBSPass.kVersion - 1,
    };
  }

  // Then call the re-init routine so we re-add the builtin widgets
  CustomizableUIInternal._updateForNewVersion();
  is(gFuturePlacements.size, 1, "Should have 1 more future placement");
  let haveNavbarPlacements = gFuturePlacements.has(CustomizableUI.AREA_NAVBAR);
  ok(haveNavbarPlacements, "Should have placements for nav-bar");
  if (haveNavbarPlacements) {
    let placements = [...gFuturePlacements.get(CustomizableUI.AREA_NAVBAR)];

    // Ignore widgets that are placed using the pref facility and not the
    // versioned facility.  They're independent of kVersion and the saved
    // state's current version, so they may be present in the placements.
    for (let i = 0; i < placements.length; ) {
      if (placements[i] == testWidgetNew.id) {
        i++;
        continue;
      }
      let pref = "browser.toolbarbuttons.introduced." + placements[i];
      let introduced = Services.prefs.getBoolPref(pref, false);
      if (!introduced) {
        i++;
        continue;
      }
      placements.splice(i, 1);
    }

    is(placements.length, 1, "Should have 1 newly placed widget in nav-bar");
    is(
      placements[0],
      testWidgetNew.id,
      "Should have our test widget to be placed in nav-bar"
    );
  }

  // Reset kVersion
  CustomizableUIBSPass.kVersion--;

  // Now test that the builtin photon migrations work:

  CustomizableUIBSPass.gSavedState = {
    currentVersion: 6,
    placements: {
      "nav-bar": ["urlbar-container", "bookmarks-menu-button"],
      "PanelUI-contents": ["panic-button", "edit-controls"],
    },
  };
  CustomizableUIInternal._updateForNewVersion();
  let navbarPlacements = CustomizableUIBSPass.gSavedState.placements["nav-bar"];
  let springs = navbarPlacements.filter(id => id.includes("spring"));
  is(springs.length, 2, "Should have 2 toolbarsprings in placements now");
  navbarPlacements = navbarPlacements.filter(id => !id.includes("spring"));
  is(navbarPlacements[0], "back-button", "Back button is in the right place.");
  is(
    navbarPlacements[1],
    "forward-button",
    "Fwd button is in the right place."
  );
  is(
    navbarPlacements[2],
    "stop-reload-button",
    "Stop/reload button is in the right place."
  );
  is(navbarPlacements[3], "home-button", "Home button is in the right place.");
  is(navbarPlacements[4], "urlbar-container", "URL bar is in the right place.");
  is(
    navbarPlacements[5],
    "downloads-button",
    "Downloads button is in the right place."
  );
  is(
    navbarPlacements[6],
    "library-button",
    "Library button is in the right place."
  );
  is(
    navbarPlacements[7],
    "sidebar-button",
    "Sidebar button is in the right place."
  );
  is(
    navbarPlacements[8],
    "fxa-toolbar-menu-button",
    "FxA button is in the right place."
  );
  is(navbarPlacements.length, 9, "Should have 9 items");

  let overflowPlacements =
    CustomizableUIBSPass.gSavedState.placements["widget-overflow-fixed-list"];
  Assert.deepEqual(overflowPlacements, ["panic-button"]);

  // Finally, test the downloads and fxa avatar button migrations work.
  let oldNavbarPlacements = [
    "urlbar-container",
    "customizableui-special-spring3",
    "search-container",
  ];
  CustomizableUIBSPass.gSavedState = {
    currentVersion: 10,
    placements: {
      "nav-bar": Array.from(oldNavbarPlacements),
      "widget-overflow-fixed-list": ["downloads-button"],
    },
  };
  CustomizableUIInternal._updateForNewVersion();
  navbarPlacements = CustomizableUIBSPass.gSavedState.placements["nav-bar"];
  Assert.deepEqual(
    navbarPlacements,
    oldNavbarPlacements.concat(["downloads-button", "fxa-toolbar-menu-button"]),
    "Downloads button inserted in navbar"
  );
  Assert.deepEqual(
    CustomizableUIBSPass.gSavedState.placements["widget-overflow-fixed-list"],
    [],
    "Overflow panel is empty"
  );

  CustomizableUIBSPass.gSavedState = {
    currentVersion: 10,
    placements: {
      "nav-bar": ["downloads-button"].concat(oldNavbarPlacements),
    },
  };
  CustomizableUIInternal._updateForNewVersion();
  navbarPlacements = CustomizableUIBSPass.gSavedState.placements["nav-bar"];
  Assert.deepEqual(
    navbarPlacements,
    oldNavbarPlacements.concat(["downloads-button", "fxa-toolbar-menu-button"]),
    "Downloads button reinserted in navbar"
  );

  oldNavbarPlacements = [
    "urlbar-container",
    "customizableui-special-spring3",
    "search-container",
    "other-widget",
  ];
  CustomizableUIBSPass.gSavedState = {
    currentVersion: 10,
    placements: {
      "nav-bar": Array.from(oldNavbarPlacements),
    },
  };
  CustomizableUIInternal._updateForNewVersion();
  navbarPlacements = CustomizableUIBSPass.gSavedState.placements["nav-bar"];
  let expectedNavbarPlacements = [
    "urlbar-container",
    "customizableui-special-spring3",
    "search-container",
    "downloads-button",
    "other-widget",
    "fxa-toolbar-menu-button",
  ];
  Assert.deepEqual(
    navbarPlacements,
    expectedNavbarPlacements,
    "Downloads button inserted in navbar before other widgets"
  );

  gFuturePlacements.delete(CustomizableUI.AREA_NAVBAR);
  gPalette.delete(testWidgetNew.id);
  gPalette.delete(testWidgetOld.id);
}