/* RainLoop Webmail (c) RainLoop Team | Licensed under CC BY-NC-SA 3.0 */

/**
 * @constructor
 */
function SettingsFolders()
{
	var oData = RL.data();
	
	this.foldersListError = oData.foldersListError;
	this.folderList = oData.folderList;
	
	this.processText = ko.computed(function () {

		var
			oData = RL.data(),
			bLoading = oData.foldersLoading(),
			bCreating = oData.foldersCreating(),
			bDeleting = oData.foldersDeleting(),
			bRenaming = oData.foldersRenaming()
		;

		if (bCreating)
		{
			return Utils.i18n('SETTINGS_FOLDERS/CREATING_PROCESS');
		}
		else if (bDeleting)
		{
			return Utils.i18n('SETTINGS_FOLDERS/DELETING_PROCESS');
		}
		else if (bRenaming)
		{
			return Utils.i18n('SETTINGS_FOLDERS/RENAMING_PROCESS');
		}
		else if (bLoading)
		{
			return Utils.i18n('SETTINGS_FOLDERS/LOADING_PROCESS');
		}

		return '';

	}, this);

	this.visibility = ko.computed(function () {
		return '' === this.processText() ? 'hidden' : 'visible';
	}, this);

	this.folderForDeletion = ko.observable(null).extend({'falseTimeout': 3000}).extend({'toggleSubscribe': [this,
		function (oPrev) {
			if (oPrev)
			{
				oPrev.deleteAccess(false);
			}
		}, function (oNext) {
			if (oNext)
			{
				oNext.deleteAccess(true);
			}
		}
	]});

	this.folderForEdit = ko.observable(null).extend({'toggleSubscribe': [this,
		function (oPrev) {
			if (oPrev)
			{
				oPrev.edited(false);
			}
		}, function (oNext) {
			if (oNext && oNext.canBeEdited())
			{
				oNext.edited(true);
			}
		}
	]});

	this.useImapSubscribe = !!RL.settingsGet('UseImapSubscribe');
}

Utils.addSettingsViewModel(SettingsFolders, 'SettingsFolders', 'SETTINGS_LABELS/LABEL_FOLDERS_NAME', 'folders');

SettingsFolders.prototype.folderEditOnEnter = function (oFolder)
{
	var sEditName = oFolder ? Utils.trim(oFolder.nameForEdit()) : '';
	if ('' !== sEditName && oFolder.name() !== sEditName)
	{
		RL.local().set(Enums.ClientSideKeyName.FoldersLashHash, '');

		RL.data().foldersRenaming(true);
		RL.remote().folderRename(function (sResult, oData) {

			RL.data().foldersRenaming(false);
			if (Enums.StorageResultType.Success !== sResult || !oData || !oData.Result)
			{
				RL.data().foldersListError(
					oData && oData.ErrorCode ? Utils.getNotification(oData.ErrorCode) : Utils.i18n('NOTIFICATIONS/CANT_RENAME_FOLDER'));
			}

			RL.folders();

		}, oFolder.fullNameRaw, sEditName);

		RL.cache().removeFolderFromCacheList(oFolder.fullNameRaw);
		
		oFolder.name(sEditName);
	}
	
	oFolder.edited(false);
};

SettingsFolders.prototype.folderEditOnEsc = function (oFolder)
{
	if (oFolder)
	{
		oFolder.edited(false);
	}
};

SettingsFolders.prototype.onShow = function ()
{
	RL.data().foldersListError('');
};

SettingsFolders.prototype.createFolder = function ()
{
	kn.showScreenPopup(PopupsFolderCreateViewModel);
};

SettingsFolders.prototype.systemFolder = function ()
{
	kn.showScreenPopup(PopupsFolderSystemViewModel);
};

SettingsFolders.prototype.deleteFolder = function (oFolderToRemove)
{
	if (oFolderToRemove && oFolderToRemove.canBeDeleted() && oFolderToRemove.deleteAccess() &&
		0 === oFolderToRemove.privateMessageCountAll())
	{
		this.folderForDeletion(null);
		
		var
			fRemoveFolder = function (oFolder) {
				
				if (oFolderToRemove === oFolder)
				{
					return true;
				}

				oFolder.subFolders.remove(fRemoveFolder);
				return false;
			}
		;

		if (oFolderToRemove)
		{
			RL.local().set(Enums.ClientSideKeyName.FoldersLashHash, '');

			RL.data().folderList.remove(fRemoveFolder);
			
			RL.data().foldersDeleting(true);
			RL.remote().folderDelete(function (sResult, oData) {
			
				RL.data().foldersDeleting(false);
				if (Enums.StorageResultType.Success !== sResult || !oData || !oData.Result)
				{
					RL.data().foldersListError(
						oData && oData.ErrorCode ? Utils.getNotification(oData.ErrorCode) : Utils.i18n('NOTIFICATIONS/CANT_DELETE_FOLDER'));
				}
				
				RL.folders();

			}, oFolderToRemove.fullNameRaw);
			
			RL.cache().removeFolderFromCacheList(oFolderToRemove.fullNameRaw);
		}
	}
	else if (0 < oFolderToRemove.privateMessageCountAll())
	{
		RL.data().foldersListError(Utils.getNotification(Enums.Notification.CantDeleteNonEmptyFolder));
	}
};

SettingsFolders.prototype.subscribeFolder = function (oFolder)
{
	RL.local().set(Enums.ClientSideKeyName.FoldersLashHash, '');
	RL.remote().folderSetSubscribe(Utils.emptyFunction, oFolder.fullNameRaw, true);
	
	oFolder.subScribed(true);
};

SettingsFolders.prototype.unSubscribeFolder = function (oFolder)
{
	RL.local().set(Enums.ClientSideKeyName.FoldersLashHash, '');
	RL.remote().folderSetSubscribe(Utils.emptyFunction, oFolder.fullNameRaw, false);
	
	oFolder.subScribed(false);
};