'use strict';

module.exports = function (oAppData) {
	var App = require('%PathToCoreWebclientModule%/js/App.js');
	
	if (App.getUserRole() === Enums.UserRole.NormalUser)
	{
		var
			_ = require('underscore'),
			ko = require('knockout'),
			
			TextUtils = require('%PathToCoreWebclientModule%/js/utils/Text.js'),
			Types = require('%PathToCoreWebclientModule%/js/utils/Types.js'),
			
			Ajax = require('%PathToCoreWebclientModule%/js/Ajax.js')
		;
		
		
		return {
			start: function (ModulesManager) {
				App.subscribeEvent('MailWebclient::ParseFile::after', function (oFile) {
					if (oFile && _.isFunction(oFile.addAction) && oFile.extension() === 'dat')
					{
						oFile.mailtnefSubFilesLoaded = ko.observable(false);
						oFile.mailtnefSubFilesLoading = ko.observable(false);
						oFile.mailtnefExpandFile = function ()
						{
							if (!this.mailtnefSubFilesLoaded() && !this.mailtnefSubFilesLoading())
							{
								this.mailtnefSubFilesLoading(true);
								Ajax.send('%ModuleName%', 'ExpandFile', { 'Hash': this.hash() }, function (oResponse) {
									this.mailtnefSubFilesLoading(false);
									if (oResponse.Result)
									{
										this.subFiles([]);
										if (Types.isNonEmptyArray(oResponse.Result))
										{
											_.each(oResponse.Result, _.bind(function (oRawFile) {
												var oSubFile = oFile.getNewInstance();
												oSubFile.parse(oRawFile);
												this.subFiles.push(oSubFile);
											}, this));
										}
										this.mailtnefSubFilesLoaded(true);
										this.subFilesExpanded(true);
									}
								}, this);
							}
							else
							{
								this.subFilesExpanded(true);
							}
						};

						var oActionData = {
							'Text': ko.computed(function () {
								if (this.subFilesExpanded())
								{
									return TextUtils.i18n('COREWEBCLIENT/ACTION_COLLAPSE_FILE');
								}
								if (this.mailtnefSubFilesLoading())
								{
									return TextUtils.i18n('COREWEBCLIENT/INFO_LOADING');
								}
								return TextUtils.i18n('COREWEBCLIENT/ACTION_EXPAND_FILE');
							}, oFile),
							'Handler': _.bind(function () {
								if (!this.mailtnefSubFilesLoading())
								{
									if (this.subFilesExpanded())
									{
										this.subFilesExpanded(false);
									}
									else
									{
										this.mailtnefExpandFile();
									}
								}
							}, oFile)
						};

						oFile.addAction('expand', true, oActionData);
						oFile.removeAction('view');
					}
				});
			}
		};
	}
	
	return null;
};