/**
 * Licensed Materials - Property of IBM IBM Cognos Products: Modeling UI (C) Copyright IBM Corp. 2016, 2019
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP
 * Schedule Contract with IBM Corp.
 */
define([], function() {
	//offset value attached to the label shortener if filter icon is present
	var MAX_DIAGRAM_LABEL_LENGTH = 20;
	//offset value attached to the label shortener if filter icon is present
	var MAX_DIAGRAM_LABEL_LENGTH_FILTER = 16;
	//offset value attached to the label shortener if capitalized letters are present
	var MAX_DIAGRAM_LABEL_LENGTH_CAPTALIZED = 15;
	//offset value attached to the label shortener if capitalized letters are and a filter is present
	var MAX_DIAGRAM_LABEL_LENGTH_CAPTALIZED_FILTER = 12;

	var StringUtils = {

		/**
		 * Return the max length of a text string for the diagram
		 *
		 * @param isFiter
		 *            Boolean value for if a filter is applied to the diagram
		 *            node (ie. filter icon visible)
		 * @param label
		 *            Label of the diagram node
		 */
		getMaxDiagramLabelLength : function(isFilter, label) {
			if (isFilter) {
				if ((label.match(/[A-Z]/g) || []).length >= 12) {
					return MAX_DIAGRAM_LABEL_LENGTH_CAPTALIZED_FILTER;
				}

				return MAX_DIAGRAM_LABEL_LENGTH_FILTER;
			}

			if ((label.match(/[A-Z]/g) || []).length > 15) {
				return MAX_DIAGRAM_LABEL_LENGTH_CAPTALIZED;
			}

			return MAX_DIAGRAM_LABEL_LENGTH;
		},

		/**
		 * Shorten a passed string that will be formatted with
		 * the ellipsis in the middle of the string eg:
		 * Hollywood Movies Csv -> Hollywo...ies Csv
		 *
		 * @param text
		 *            The text item that is to be shortened
		 * @param maxSize
		 *            Max size allowed (number of characters)
		 */
		shortenTextMidEllipsis : function(text, maxSize) {
			var shortenedText = text;
			var length = text.length;
			// subtract 2 so we don't exceed the max val (adding
			// in 3 chars with the ...)
			var subLength = maxSize / 2 - 2;
			if (length > maxSize) {
				shortenedText = text.substring(0, subLength);
				shortenedText += '...';
				shortenedText += text.substring(length - subLength, length);
			}

			return shortenedText;
		}
	};

	return StringUtils;

});