"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("feed-button", CustomizableUI.AREA_NAVBAR);

  let CustomizableUIBSPass = Cu.import("resource:///modules/CustomizableUI.jsm", {});

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

  let {CustomizableUIInternal, gFuturePlacements, gPalette} = CustomizableUIBSPass;

  // Force us to have a saved state:
  CustomizableUIInternal.saveState();
  CustomizableUIInternal.loadSavedState();

  CustomizableUIInternal._introduceNewBuiltinWidgets();
  is(gFuturePlacements.size, 0,
     "No change to future placements initially.");

  // Add our widget to the defaults:
  let testWidgetNew = {
    id: "test-messing-with-default-placements-new-pref",
    label: "Test messing with default placements - pref-based",
    defaultArea: CustomizableUI.AREA_NAVBAR,
    introducedInVersion: "pref",
  };

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

  // Now adjust default placements for area:
  let navbarArea = CustomizableUIBSPass.gAreas.get(CustomizableUI.AREA_NAVBAR);
  let navbarPlacements = navbarArea.get("defaultPlacements");
  navbarPlacements.splice(navbarPlacements.indexOf("bookmarks-menu-button") + 1, 0, testWidgetNew.id);

  let savedPlacements = CustomizableUIBSPass.gSavedState.placements[CustomizableUI.AREA_NAVBAR];
  // Then call the re-init routine so we re-add the builtin widgets
  CustomizableUIInternal._introduceNewBuiltinWidgets();
  is(gFuturePlacements.size, 1,
     "Should have 1 more future placement");
  let futureNavbarPlacements = gFuturePlacements.get(CustomizableUI.AREA_NAVBAR);
  ok(futureNavbarPlacements, "Should have placements for nav-bar");
  if (futureNavbarPlacements) {
    ok(futureNavbarPlacements.has(testWidgetNew.id), "widget should be in future placements");
  }
  CustomizableUIInternal._placeNewDefaultWidgetsInArea(CustomizableUI.AREA_NAVBAR);

  let indexInSavedPlacements = savedPlacements.indexOf(testWidgetNew.id);
  info("Saved placements: " + savedPlacements.join(', '));
  isnot(indexInSavedPlacements, -1, "Widget should have been inserted");
  is(indexInSavedPlacements, savedPlacements.indexOf("bookmarks-menu-button") + 1,
     "Widget should be in the right place.");

  if (futureNavbarPlacements) {
    ok(!futureNavbarPlacements.has(testWidgetNew.id), "widget should be out of future placements");
  }

  if (indexInSavedPlacements != -1) {
    savedPlacements.splice(indexInSavedPlacements, 1);
  }

  gFuturePlacements.delete(CustomizableUI.AREA_NAVBAR);
  let indexInDefaultPlacements = navbarPlacements.indexOf(testWidgetNew.id);
  if (indexInDefaultPlacements != -1) {
    navbarPlacements.splice(indexInDefaultPlacements, 1);
  }
  gPalette.delete(testWidgetNew.id);
  CustomizableUI.reset();
}