if (typeof input === 'undefined') {
  var input = {
    manualMode: "",
    _PS_MODE_DEV_: true,
    PS_AUTOUP_BACKUP: true,
    adminUrl: "http://test.com/admin",
    adminDir: "/admin",
    token: "asdadsasdasdasd",
    txtError: [],
    firstTimeParams: {},
    ajaxUpgradeTabExists: true,
    currentIndex: 'page.php',
    tab: input.tab,
    channel: 'major',
    translation: {
      confirmDeleteBackup: "Are you sure you want to delete this backup?",
      "delete": "Delete",
      updateInProgress: "An update is currently in progress... Click \"OK\" to abort.",
      upgradingPrestaShop: "Upgrading PrestaShop",
      upgradeComplete: "Upgrade complete",
      upgradeCompleteWithWarnings: "Upgrade complete, but warning notifications has been found.",
      todoList: [
        "Cookies have changed, you will need to log in again once you refreshed the page",
        "Javascript and CSS files have changed, please clear your browser cache with CTRL-F5",
        "Please check that your front-office theme is functional (try to create an account, place an order...)",
        "Product images do not appear in the front-office? Try regenerating the thumbnails in Preferences > Images",
        "Do not forget to reactivate your shop once you have checked everything!"
      ],
      todoListTitle: "ToDo list:",
      startingRestore: "Starting restoration...",
      restoreComplete: "Restoration complete.",
      cannotDownloadFile: "Your server cannot download the file. Please upload it first by ftp in your admin/autoupgrade directory",
      jsonParseErrorForAction: "Javascript error (parseJSON) detected for action ",
      manuallyGoToButton: "Manually go to %s button",
      endOfProcess: "End of process",
      processCancelledCheckForRestore: "Operation canceled. Checking for restoration...",
      confirmRestoreBackup: "Do you want to restore SomeBackupName?",
      processCancelledWithError: "Operation canceled. An error happened.",
      missingAjaxUpgradeTab: "[TECHNICAL ERROR] ajax-upgradetab.php is missing. Please reinstall the module.",
      clickToRefreshAndUseNewConfiguration: "Click to refresh the page and use the new configuration",
      errorDetectedDuring: "Error detected during",
      downloadTimeout: "The request exceeded the max_time_limit. Please change your server configuration.",
      seeOrHideList: "See or hide the list",
      coreFiles: "Core file(s)",
      mailFiles: "Mail file(s)",
      translationFiles: "Translation file(s)",
      linkAndMd5CannotBeEmpty: "Link and MD5 hash cannot be empty",
      needToEnterArchiveVersionNumber: "You need to enter the version number associated with the archive.",
      noArchiveSelected: "No archive has been selected.",
      needToEnterDirectoryVersionNumber: "You need to enter the version number associated with the directory.",
      confirmSkipBackup: "Please confirm that you want to skip the backup.",
      confirmPreserveFileOptions: "Please confirm that you want to preserve file options.",
      lessOptions: "Less options",
      moreOptions: "More options (Expert mode)",
      filesWillBeDeleted: "These files will be deleted",
      filesWillBeReplaced: "These files will be replaced",
    }
  };
}

var firstTimeParams = input.firstTimeParams.nextParams;
firstTimeParams.firstTime = "1";

function ucFirst(str) {
  if (str.length > 0) {
    return str[0].toUpperCase() + str.substring(1);
  }
  return str;
}

function cleanInfo() {
  $("#infoStep").html("reset<br/>");
}

function updateInfoStep(msg) {
  if (msg) {
    var $infoStep = $("#infoStep");
    $infoStep.append(msg + "<div class=\"clear\"></div>");
    $infoStep.prop({scrollTop: $infoStep.prop("scrollHeight")}, 1);
  }
}

function addError(arrError) {
  if (typeof arrError !== "undefined" && arrError.length) {
    $("#errorDuringUpgrade").show();
    var $infoError = $("#infoError");
    for (var i = 0; i < arrError.length; i++) {
      $infoError.append(arrError[i] + "<div class=\"clear\"></div>");
    }
    // Note: jquery 1.6 makes use of prop() instead of attr()
    $infoError.prop({scrollTop: $infoError.prop("scrollHeight")}, 1);
  }
}

function addQuickInfo(arrQuickInfo) {
  if (arrQuickInfo) {
    var $quickInfo = $("#quickInfo");
    $quickInfo.show();
    for (var i = 0; i < arrQuickInfo.length; i++) {
      $quickInfo.append(arrQuickInfo[i] + "<div class=\"clear\"></div>");
    }
    // Note : jquery 1.6 make uses of prop() instead of attr()
    $quickInfo.prop({scrollTop: $quickInfo.prop("scrollHeight")}, 1);
  }
}

// js initialization : prepare upgrade and rollback buttons
$(document).ready(function(){

  $(".nobootstrap.no-header-toolbar").removeClass("nobootstrap").addClass("bootstrap");

  $(document).on("click", "a.confirmBeforeDelete", function(e) {
    if (!confirm(input.translation.confirmDeleteBackup)) {
      e.preventDefault();
    }
  });

  $("select[name=channel]").change(function(e) {
    $(this).find("option").each(function() {
      var $this = $(this);
        $("#for-" + $this.attr("id"))
          .toggle($this.is(":selected"));
    });

    refreshChannelInfos();
  });

  function refreshChannelInfos() {
    var val = $("select[name=channel]").val();
    $.ajax({
      type: "POST",
      url: input.adminUrl + "/autoupgrade/ajax-upgradetab.php",
      async: true,
      data: {
        dir: input.adminDir,
        token: input.token,
        tab: input.tab,
        action: "getChannelInfo",
        ajaxMode: "1",
        params: {channel: val}
      },
      success: function(res, textStatus, jqXHR) {
        if (isJsonString(res)) {
          res = $.parseJSON(res);
        } else {
          res = {nextParams: {status: "error"}};
        }

        var answer = res.nextParams.result;
        if (typeof answer !== "undefined") {
          var $channelInfos = $("#channel-infos");
          $channelInfos.replaceWith(answer.div);
          if (answer.available) {
            $("#channel-infos .all-infos").show();
          } else {
            $channelInfos.html(answer.div);
            $("#channel-infos .all-infos").hide();
          }
        }
      },
      error: function(res, textStatus, jqXHR) {
        if (textStatus === "timeout" && action === "download") {
          updateInfoStep(input.translation.cannotDownloadFile);
        }
        else {
          // technical error : no translation needed
          $("#checkPrestaShopFilesVersion").html("<img src=\"../img/admin/warning.gif\" /> Error Unable to check md5 files");
        }
      }
    });
  }

  // the following prevents to leave the page at the inappropriate time
  $.xhrPool = [];
  $.xhrPool.abortAll = function() {
    $.each(this, function(jqXHR) {
      if (jqXHR && (jqXHR.readystate !== 4)) {
        jqXHR.abort();
      }
    });
  };

  $(".upgradestep").click(function(e) {
    e.preventDefault();
    // $.scrollTo("#options")
  });

  // set timeout to 120 minutes (before aborting an ajax request)
  $.ajaxSetup({timeout:7200000});

  // prepare available button here, without params ?
  prepareNextButton("#upgradeNow",firstTimeParams);

  /**
   * reset rollbackParams js array (used to init rollback button)
   */
  $("select[name=restoreName]").change(function() {
    var val = $(this).val();

    // show delete button if the value is not 0
    if (val != 0) {
      $("span#buttonDeleteBackup").html(
        "<br><a class=\"button confirmBeforeDelete\" href=\"index.php?tab=AdminSelfUpgrade&token="
        + input.token
        + "&amp;deletebackup&amp;name="
        + $(this).val()
        + "\"><img src=\"../img/admin/disabled.gif\" />"
        + input.translation.delete
        + "</a>"
      );
    }

    if (val != 0) {
      $("#rollback").removeAttr("disabled");
      var rollbackParams = $.extend(true, {}, firstTimeParams);

      delete rollbackParams.backupName;
      delete rollbackParams.backupFilesFilename;
      delete rollbackParams.backupDbFilename;
      delete rollbackParams.restoreFilesFilename;
      delete rollbackParams.restoreDbFilenames;

      // init new name to backup
      rollbackParams.restoreName = val;
      prepareNextButton("#rollback", rollbackParams);
      // Note : theses buttons have been removed.
      // they will be available in a future release (when DEV_MODE and MANUAL_MODE enabled)
      // prepareNextButton("#restoreDb", rollbackParams);
      // prepareNextButton("#restoreFiles", rollbackParams);
    } else {
      $("#rollback").attr("disabled", "disabled");
    }
  });

  $("div[id|=for]").hide();
  $("select[name=channel]").change();

  if (!input.ajaxUpgradeTabExists) {
    $("#checkPrestaShopFilesVersion").html("<img src=\"../img/admin/warning.gif\" />" + input.translation.missingAjaxUpgradeTab);
  }
});

function showConfigResult(msg, type) {
  if (!type) {
    type = "conf";
  }
  var $configResult = $("#configResult");
  $configResult.html("<div class=\"" + type + "\">" + msg + "</div>").show();

  if (type === "conf") {
    $configResult.delay(3000).fadeOut("slow", function() {
      location.reload();
    });
  }
}

// reuse previousParams, and handle xml returns to calculate next step
// (and the correct next param array)
// a case has to be defined for each requests that returns xml
function afterUpdateConfig(res) {
  var params = res.nextParams;
  var config = params.config;
  var $oldChannel = $("select[name=channel] option.current");

  if (config.channel != $oldChannel.val()) {
    var $newChannel = $("select[name=channel] option[value=" + config.channel + "]");
    $oldChannel
      .removeClass("current")
      .html($oldChannel.html().substr(2));

    $newChannel
      .addClass("current")
      .html("* " + $newChannel.html());
  }

  if (res.error == 1) {
    showConfigResult(res.next_desc, "error");
  } else {
    showConfigResult(res.next_desc);
  }

  $("#upgradeNow")
    .unbind()
    .replaceWith(
      "<a class=\"button-autoupgrade\" href=\""
      + input.currentIndex
      + "&token="
      + input.token
      + "\" >"
      + input.translation.clickToRefreshAndUseNewConfiguration
      + "</a>"
  );
}

function startProcess(type) {

  // hide useless divs, show activity log
  $("#informationBlock,#comparisonBlock,#currentConfigurationBlock,#backupOptionsBlock,#upgradeOptionsBlock,#upgradeButtonBlock").slideUp("fast");
  $(".autoupgradeSteps a").addClass("button");
  $("#activityLogBlock").fadeIn("slow");

  $(window).bind("beforeunload", function(e) {
    if (confirm(input.translation.updateInProgress)) {
      $.xhrPool.abortAll();
      $(window).unbind("beforeunload");
      return true;
    } else {
      if (type === "upgrade") {
        e.returnValue = false;
        e.cancelBubble = true;
        if (e.stopPropagation) {
          e.stopPropagation();
        }
        if (e.preventDefault) {
          e.preventDefault();
        }
      }
    }
  });
}

function afterUpgradeNow(res) {
  startProcess("upgrade");
  $("#upgradeNow")
    .unbind()
    .replaceWith(
      "<span id=\"upgradeNow\" class=\"button-autoupgrade\">"
      + input.translation.upgradingPrestaShop
      + " ...</span>"
    );
}

function afterUpgradeComplete(res) {
  var params = res.nextParams;

  $("#pleaseWait").hide();
  if (params.warning_exists == "false") {
    $("#upgradeResultCheck")
      .html("<p>" + input.translation.upgradeComplete + "</p>")
      .show();
    $("#infoStep").html("<p class=\"alert alert-success\">" + input.translation.upgradeComplete + "</p>");
  }
  else {
    params = res.nextParams;
    $("#pleaseWait").hide();
    $("#upgradeResultCheck")
      .html("<p>" + input.translation.upgradeCompleteWithWarnings + "</p>")
      .show("slow");
    $("#infoStep").html("<p class=\"alert alert-warning\">" + input.translation.upgradeCompleteWithWarnings + "</p>");
  }

  var todoList = input.translation.todoList;
  var todoBullets = "<ul>";
  for (var i in todoList) {
    todoBullets += "<li>" + todoList[i] + "</li>";
  }

  todoBullets += "</ul>";

  $("#upgradeResultToDoList")
    .html("<strong>" + input.translation.todoListTitle + "</strong>")
    .append(todoBullets)
    .show();

  $(window).unbind("beforeunload");
}

function afterError(res) {
  var params = res.nextParams;
  if (params.next === "") {
    $(window).unbind("beforeunload");
  }
  $("#pleaseWait").hide();

  addQuickInfo(["unbind :) "]);
}

function afterRollback(res) {
  startProcess("rollback");
}

function afterRollbackComplete(res) {
  var params = res.nextParams;
  $("#pleaseWait").hide();
  $("#upgradeResultCheck")
    .html("<p>" + input.translation.restoreComplete + "</p>")
    .show("slow");
  updateInfoStep("<p class=\"alert alert-success\">" + input.translation.restoreComplete + "</p>");
  $(window).unbind();
}

function afterRestoreDb(params) {
  // $("#restoreBackupContainer").hide();
}

function afterRestoreFiles(params) {
  // $("#restoreFilesContainer").hide();
}

function afterBackupFiles(res) {
  var params = res.nextParams;
  // if (params.stepDone)
}

/**
 * afterBackupDb display the button
 */
function afterBackupDb(res) {
  var params = res.nextParams;

  if (res.stepDone && input.PS_AUTOUP_BACKUP === true) {
    $("#restoreBackupContainer").show();
    $("select[name=restoreName]")
      .append("<option selected=\"selected\" value=\"" + params.backupName + "\">" + params.backupName + "</option>")
      .val('')
      .change();
  }
}

function call_function(func) {
  this[func].apply(this, Array.prototype.slice.call(arguments, 1));
}

function doAjaxRequest(action, nextParams) {
  if (input._PS_MODE_DEV_ === true) {
    addQuickInfo(["[DEV] ajax request : " + action]);
  }
  $("#pleaseWait").show();
  var req = $.ajax({
    type: "POST",
    url: input.adminUrl + "/autoupgrade/ajax-upgradetab.php",
    async: true,
    data: {
      dir: input.adminDir,
      ajaxMode: "1",
      token: input.token,
      tab: input.tab,
      action: action,
      params: nextParams
    },
    beforeSend: function(jqXHR) {
      $.xhrPool.push(jqXHR);
    },
    complete: function(jqXHR) {
      // just remove the item to the "abort list"
      $.xhrPool.pop();
      // $(window).unbind("beforeunload");
    },
    success: function(res, textStatus, jqXHR) {
      $("#pleaseWait").hide();
      try {
        res = $.parseJSON(res);
      }
      catch (e) {
        res = {status: "error", nextParams: nextParams};
        alert(
          input.translation.jsonParseErrorForAction
          + action
          + "\"" + input.translation.startingRestore + "\""
        );
      }

      addQuickInfo(res.nextQuickInfo);
      addError(res.nextErrors);
      updateInfoStep(res.next_desc);
      var currentParams = res.nextParams;
      if (res.status === "ok") {
        $("#" + action).addClass("done");
        if (res.stepDone) {
          $("#" + action).addClass("stepok");
        }
        // if a function "after[action name]" exists, it should be called now.
        // This is used for enabling restore buttons for example
        var funcName = "after" + ucFirst(action);
        if (typeof window[funcName] === "function") {
          call_function(funcName, res);
        }

        handleSuccess(res, action);
      } else {
        // display progression
        $("#" + action).addClass("done steperror");
        var validActions = [
          "rollback",
          "rollbackComplete",
          "restoreFiles",
          "restoreDb",
          "rollback",
          "noRollbackFound"
        ];
        if (validActions.indexOf(action) === -1) {
          handleError(res, action);
        } else {
          alert(input.translation.errorDetectedDuring + " [" + action + "].");
        }
      }
    },
    error: function(jqXHR, textStatus, errorThrown) {
      $("#pleaseWait").hide();
      if (textStatus === "timeout") {
        if (action === "download") {
          updateInfoStep(input.translation.cannotDownloadFile);
        } else {
          updateInfoStep("[Server Error] Timeout: " + input.translation.downloadTimeout);
        }
      }
      else {
          try {
            res = $.parseJSON(jqXHR.responseText);
            addQuickInfo(res.nextQuickInfo);
            addError(res.nextErrors);
            updateInfoStep(res.next_desc);
          }
          catch (e) {
            updateInfoStep("[Ajax / Server Error for action " + action + "] textStatus: \"" + textStatus + " \" errorThrown:\"" + errorThrown + " \" jqXHR: \" " + jqXHR.responseText + "\"");
          }
      }
    }
  });
  return req;
}

/**
 * prepareNextButton make the button button_selector available, and update the nextParams values
 *
 * @param button_selector $button_selector
 * @param nextParams $nextParams
 * @return void
 */
function prepareNextButton(button_selector, nextParams) {
  $(button_selector)
    .unbind()
    .click(function(e) {
      e.preventDefault();
      $("#currentlyProcessing").show();
      var action = button_selector.substr(1);
      doAjaxRequest(action, nextParams);
    });
}

/**
 * handleSuccess
 * res = {error:, next:, next_desc:, nextParams:, nextQuickInfo:,status:"ok"}
 * @param res $res
 * @return void
 */
function handleSuccess(res, action) {
  if (res.next !== "") {

    $("#" + res.next).addClass("nextStep");
    var validActions = [
      "rollback",
      "rollbackComplete",
      "restoreFiles",
      "restoreDb",
      "rollback",
      "noRollbackFound"
    ];
    if (input.manualMode && validActions.indexOf(action) === -1) {
      prepareNextButton("#" + res.next, res.nextParams);
      alert(input.translation.manuallyGoToButton.replace("%s", res.next));
    } else {
      // if next is rollback, prepare nextParams with rollbackDbFilename and rollbackFilesFilename
      if (res.next === "rollback") {
        res.nextParams.restoreName = "";
      }
      doAjaxRequest(res.next, res.nextParams);
      // 2) remove all step link (or show them only in dev mode)
      // 3) when steps link displayed, they should change color when passed if they are visible
    }
  } else {
    // Way To Go, end of upgrade process
    addQuickInfo([input.translation.endOfProcess]);
  }
}

// res = {nextParams, next_desc}
function handleError(res, action) {
  // display error message in the main process thing
  // In case the rollback button has been deactivated, just re-enable it
  $("#rollback").removeAttr("disabled");
  // auto rollback only if current action is upgradeFiles or upgradeDb
  var validActions = [
    "upgradeFiles",
    "upgradeDb",
    "upgradeModules"
  ];
  if (validActions.indexOf(action) !== -1) {
    $(".button-autoupgrade").html(input.translation.processCancelledCheckForRestore);
    res.nextParams.restoreName = res.nextParams.backupName;
    if (confirm(input.translation.confirmRestoreBackup)) {
      doAjaxRequest("rollback", res.nextParams);
    }
  } else {
    $(".button-autoupgrade").html(input.translation.processCancelledWithError);
    $(window).unbind();
  }
}

// ajax to check md5 files
function addModifiedFileList(title, fileList, css_class, container) {
  var subList = $("<ul class=\"changedFileList " + css_class + "\"></ul>");

  $(fileList).each(function(k, v) {
    $(subList).append("<li>" + v + "</li>");
  });

  $(container)
    .append("<h3><a class=\"toggleSublist\" href=\"#\" >" + title + "</a> (" + fileList.length + ")</h3>")
    .append(subList)
    .append("<br/>");
}

// -- Should be executed only if ajaxUpgradeTabExists

function isJsonString(str) {
  try {
    typeof str !== "undefined" && JSON.parse(str);
  } catch (e) {
    return false;
  }
  return true;
}

$(document).ready(function() {
  $.ajax({
    type: "POST",
    url: input.adminUrl + "/autoupgrade/ajax-upgradetab.php",
    async: true,
    data: {
      dir: input.adminDir,
      token: input.token,
      tab: input.tab,
      action: "checkFilesVersion",
      ajaxMode: "1",
      params: {}
    },
    success: function(res, textStatus, jqXHR) {
      if (isJsonString(res)) {
        res = $.parseJSON(res);
      } else {
        res = {nextParams: {status: "error"}};
      }
      var answer = res.nextParams;
      var $checkPrestaShopFilesVersion = $("#checkPrestaShopFilesVersion");

      $checkPrestaShopFilesVersion.html("<span> " + answer.msg + " </span> ");
      if (answer.status === "error" || (typeof answer.result  === "undefined")) {
        $checkPrestaShopFilesVersion.prepend("<img src=\"../img/admin/warning.gif\" /> ");
      } else {
        $checkPrestaShopFilesVersion
          .prepend("<img src=\"../img/admin/warning.gif\" /> ")
          .append("<a id=\"toggleChangedList\" class=\"button\" href=\"\">" + input.translation.seeOrHideList + "</a><br/>")
          .append("<div id=\"changedList\" style=\"display:none \"><br/>");

        if (answer.result.core.length) {
          addModifiedFileList(input.translation.coreFiles, answer.result.core, "changedImportant", "#changedList");
        }
        if (answer.result.mail.length) {
          addModifiedFileList(input.translation.mailFiles, answer.result.mail, "changedNotice", "#changedList");
        }
        if (answer.result.translation.length) {
          addModifiedFileList(input.translation.translationFiles, answer.result.translation, "changedNotice", "#changedList");
        }

        $("#toggleChangedList").bind("click", function(e) {
          e.preventDefault();
          $("#changedList").toggle();
        });

        $(".toggleSublist").die().live("click", function(e) {
          e.preventDefault();
          $(this).parent().next().toggle();
        });
      }
    },
    error: function(res, textStatus, jqXHR) {
      if (textStatus === "timeout" && action === "download") {
        updateInfoStep(input.translation.cannotDownloadFile);
      } else {
        // technical error : no translation needed
        $("#checkPrestaShopFilesVersion").html("<img src=\"../img/admin/warning.gif\" /> Error: Unable to check md5 files");
      }
    }
  });

  $.ajax({
    type: "POST",
    url: input.adminUrl + "/autoupgrade/ajax-upgradetab.php",
    async: true,
    data: {
      dir: input.adminDir,
      token: input.token,
      tab: input.tab,
      action: "compareReleases",
      ajaxMode: "1",
      params: {}
    },
    success: function(res, textStatus, jqXHR) {
      if (isJsonString(res)) {
        res = $.parseJSON(res);
      } else {
        res = {nextParams: {status: "error"}};
      }
      var answer = res.nextParams;
      var $checkPrestaShopModifiedFiles = $("#checkPrestaShopModifiedFiles");

      $checkPrestaShopModifiedFiles.html("<span> " + answer.msg + " </span> ");
      if (answer.status === "error" || typeof answer.result === "undefined") {
        $checkPrestaShopModifiedFiles.prepend("<img src=\"../img/admin/warning.gif\" /> ");
      } else {
        $checkPrestaShopModifiedFiles
          .prepend("<img src=\"../img/admin/warning.gif\" /> ")
          .append("<a id=\"toggleDiffList\" class=\"button\" href=\"\">"+input.translation.seeOrHideList+"</a><br/>")
          .append("<div id=\"diffList\" style=\"display:none \"><br/>");

        if (answer.result.deleted.length) {
          addModifiedFileList(input.translation.filesWillBeDeleted, answer.result.deleted, "diffImportant", "#diffList");
        }
        if (answer.result.modified.length) {
          addModifiedFileList(input.translation.filesWillBeReplaced, answer.result.modified, "diffImportant", "#diffList");
        }

        $("#toggleDiffList").bind("click", function(e) {
          e.preventDefault();
          $("#diffList").toggle();
        });

        $(".toggleSublist").die().live("click", function(e) {
          e.preventDefault();
          // this=a, parent=h3, next=ul
          $(this).parent().next().toggle();
        });
      }
    },
    error: function(res, textStatus, jqXHR) {
      if (textStatus === "timeout" && action === "download") {
        updateInfoStep(input.translation.cannotDownloadFile);
      } else {
        // technical error : no translation needed
        $("#checkPrestaShopFilesVersion").html("<img src=\"../img/admin/warning.gif\" /> Error: Unable to check md5 files");
      }
    }
  });
});

// -- END

// advanced/normal mode
function switch_to_advanced(){
  $("input[name=btn_adv]").val(input.translation.lessOptions);
  $("#advanced").show();
}

function switch_to_normal(){
  $("input[name=btn_adv]").val(input.translation.moreOptions);
  $("#advanced").hide();
}

$("input[name=btn_adv]").click(function(e) {
  if ($("#advanced:visible").length) {
    switch_to_normal();
  } else {
    switch_to_advanced();
  }
});

$(document).ready(function(){
  if (input.channel === 'major') {
    switch_to_normal();
  } else {
    switch_to_advanced();
  }
});

$(document).ready(function() {
  $("input[name|=submitConf]").bind("click", function(e) {
    var params = {};
    var $newChannel = $("select[name=channel] option:selected").val();
    var $oldChannel = $("select[name=channel] option.current").val();
    $oldChannel = "";

    if ($oldChannel != $newChannel) {
      var validChannels = [
        "major",
        "minor",
        "rc",
        "beta",
        "alpha"
      ];
      if (validChannels.indexOf($newChannel) !== -1) {
        params.channel = $newChannel;
      }

      if ($newChannel === "private") {
        if (($("input[name=private_release_link]").val() == "") || ($("input[name=private_release_md5]").val() == "")) {
          showConfigResult(input.translation.linkAndMd5CannotBeEmpty, "error");
          return false;
        }
        params.channel = "private";
        params.private_release_link = $("input[name=private_release_link]").val();
        params.private_release_md5 = $("input[name=private_release_md5]").val();
        if ($("input[name=private_allow_major]").is(":checked")) {
          params.private_allow_major = 1;
        } else {
          params.private_allow_major = 0;
        }
      } else if ($newChannel === "archive") {
        var archive_prestashop = $("select[name=archive_prestashop]").val();
        var archive_num = $("input[name=archive_num]").val();
        if (archive_num == "") {
          showConfigResult(input.translation.needToEnterArchiveVersionNumber, "error");
          return false;
        }
        if (archive_prestashop == "") {
          showConfigResult(input.translation.noArchiveSelected, "error");
          return false;
        }
        params.channel = "archive";
        params.archive_prestashop = archive_prestashop;
        params.archive_num = archive_num;
      } else if ($newChannel === "directory") {
        params.channel = "directory";
        params.directory_prestashop = $("select[name=directory_prestashop] option:selected").val();
        var directory_num = $("input[name=directory_num]").val();
        if (directory_num == "" || directory_num.indexOf(".") == -1) {
          showConfigResult(input.translation.needToEnterDirectoryVersionNumber, "error");
          return false;
        }
        params.directory_num = $("input[name=directory_num]").val();
      }
    }
    // note: skipBackup is currently not used
    if ($(this).attr("name") == "submitConf-skipBackup") {
      var skipBackup = $("input[name=submitConf-skipBackup]:checked").length;
      if (skipBackup == 0 || confirm(input.translation.confirmSkipBackup)) {
        params.skip_backup = $("input[name=submitConf-skipBackup]:checked").length;
      } else {
        $("input[name=submitConf-skipBackup]:checked").removeAttr("checked");
        return false;
      }
    }

    // note: preserveFiles is currently not used
    if ($(this).attr("name") == "submitConf-preserveFiles") {
      var preserveFiles = $("input[name=submitConf-preserveFiles]:checked").length;
      if (confirm(input.translation.confirmPreserveFileOptions)) {
        params.preserve_files = $("input[name=submitConf-preserveFiles]:checked").length;
      } else {
        $("input[name=submitConf-skipBackup]:checked").removeAttr("checked");
        return false;
      }
    }
    var res = doAjaxRequest("updateConfig", params);
  });
});