"use strict";

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: admin
 * Copyright IBM Corp. 2015, 2017
 * US Government Users Restricted Rights -Use, duplication or disclosure
 * restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['underscore', 'bi/admin/common/Uploader', 'bi/admin/nls/StringResource'], function (_, Uploader, StringResource) {
  'use strict'; //NOSONAR: meant to be strict

  var TopicUploader = Uploader.extend({
    /**
     *@options.glassContext - glassContext
     *@options.$el - Container
     *@options.ajax() - ajax function to upload data
     *@options.ajaxOptions
     */
    init: function init(options) {
      TopicUploader.inherited('init', this, arguments);

      _.extend(this, options);

      this.includeFileName = true;
    },
    _getInput: function _getInput() {
      var inputOptions = this._getBaseInputOptions();

      if (this.fileType && this.fileType === 'json') {
        inputOptions.accept = '.json';
      } else {
        inputOptions.accept = '.txt';
      }

      return $('<input>', inputOptions);
    },
    _isValidFileName: function _isValidFileName(fileName) {
      if (this.fileType === 'json') {
        return /^[a-z0-9_ \-]{1,200}\.json$/i.test(fileName);
      } else {
        return /^[a-z0-9_ \-]{1,200}\.txt$/i.test(fileName);
      }
    },
    // NB - the message returned should match regexp above
    _getInvalidFileNameMessage: function _getInvalidFileNameMessage() {
      return StringResource.get('msgFileNameTopicUpload');
    },
    _getFileName: function _getFileName(fileName, e) {
      var topicName;

      try {
        var fileStr = String.fromCharCode.apply(null, new Uint8Array(e.target.result));
        topicName = JSON.parse(fileStr).topicName;

        if (_.isUndefined(topicName) || _.isEmpty(topicName)) {
          topicName = fileName.substr(0, fileName.lastIndexOf('.'));
        }
      } catch (error) {
        return fileName.substr(0, fileName.lastIndexOf('.'));
      }

      return topicName;
    }
  });
  return TopicUploader;
});