/* 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/. */

var curTaskIndex = 0;
var numTasks = 0;
var stringBundle;

var msgShutdownService = Cc[
  "@mozilla.org/messenger/msgshutdownservice;1"
].getService(Ci.nsIMsgShutdownService);

window.addEventListener("DOMContentLoaded", onLoad);
document.addEventListener("dialogcancel", onCancel);

function onLoad() {
  numTasks = msgShutdownService.getNumTasks();

  stringBundle = document.getElementById("bundle_shutdown");
  document.title = stringBundle.getString("shutdownDialogTitle");

  updateTaskProgressLabel(1);
  updateProgressMeter(0);

  msgShutdownService.startShutdownTasks();
}

function updateProgressLabel(inTaskName) {
  var curTaskLabel = document.getElementById("shutdownStatus_label");
  curTaskLabel.value = inTaskName;
}

function updateTaskProgressLabel(inCurTaskNum) {
  var taskProgressLabel = document.getElementById("shutdownTask_label");
  taskProgressLabel.value = stringBundle.getFormattedString("taskProgress", [
    inCurTaskNum,
    numTasks,
  ]);
}

function updateProgressMeter(inPercent) {
  var taskProgressmeter = document.getElementById("shutdown_progressmeter");
  taskProgressmeter.value = inPercent;
}

function onCancel() {
  msgShutdownService.cancelShutdownTasks();
}

function nsMsgShutdownTaskListener() {
  msgShutdownService.setShutdownListener(this);
}

nsMsgShutdownTaskListener.prototype = {
  QueryInterface: ChromeUtils.generateQI([
    "nsIWebProgressListener",
    "nsISupportsWeakReference",
  ]),

  onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
    if (aStateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
      window.close();
    }
  },

  onProgressChange(
    aWebProgress,
    aRequest,
    aCurSelfProgress,
    aMaxSelfProgress,
    aCurTotalProgress,
    aMaxTotalProgress
  ) {
    updateProgressMeter((aCurTotalProgress / aMaxTotalProgress) * 100);
    updateTaskProgressLabel(aCurTotalProgress + 1);
  },

  onLocationChange(aWebProgress, aRequest, aLocation, aFlags) {
    // we can ignore this notification
  },

  onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {
    if (aMessage) {
      updateProgressLabel(aMessage);
    }
  },

  onSecurityChange(aWebProgress, aRequest, state) {
    // we can ignore this notification
  },

  onContentBlockingEvent(aWebProgress, aRequest, aEvent) {
    // we can ignore this notification
  },
};

var MsgShutdownTaskListener = new nsMsgShutdownTaskListener();