/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

var EXPORTED_SYMBOLS = ["ResetProfile"];

ChromeUtils.import("resource://gre/modules/Services.jsm");

ChromeUtils.import("resource://gre/modules/AppConstants.jsm");

const MOZ_APP_NAME = AppConstants.MOZ_APP_NAME;

const MOZ_BUILD_APP = AppConstants.MOZ_BUILD_APP;

var ResetProfile = {

  /**

   * Check if reset is supported for the currently running profile.

   *

   * @return boolean whether reset is supported.

   */

  resetSupported() {

    if (Services.policies && !Services.policies.isAllowed("profileRefresh")) {

      return false;

    }

    // Reset is only supported if the self-migrator used for reset exists.

    let migrator = "@mozilla.org/profile/migrator;1?app=" + MOZ_BUILD_APP +

                   "&type=" + MOZ_APP_NAME;

    if (!(migrator in Cc)) {

      return false;

    }

    // We also need to be using a profile the profile manager knows about.

    let profileService = Cc["@mozilla.org/toolkit/profile-service;1"].

                         getService(Ci.nsIToolkitProfileService);

    let currentProfileDir = Services.dirsvc.get("ProfD", Ci.nsIFile);

    let profileEnumerator = profileService.profiles;

    while (profileEnumerator.hasMoreElements()) {

      let profile = profileEnumerator.getNext().QueryInterface(Ci.nsIToolkitProfile);

      if (profile.rootDir && profile.rootDir.equals(currentProfileDir)) {

        return true;

      }

    }

    return false;

  },

  /**

   * Ask the user if they wish to restart the application to reset the profile.

   */

  openConfirmationDialog(window) {

    // Prompt the user to confirm.

    let params = {

      reset: false,

    };

    window.openDialog("chrome://global/content/resetProfile.xul", null,

                      "chrome,modal,centerscreen,titlebar,dialog=yes", params);

    if (!params.reset)

      return;

    // Set the reset profile environment variable.

    let env = Cc["@mozilla.org/process/environment;1"]

                .getService(Ci.nsIEnvironment);

    env.set("MOZ_RESET_PROFILE_RESTART", "1");

    Services.startup.quit(Ci.nsIAppStartup.eForceQuit | Ci.nsIAppStartup.eRestart);

  },

};