"use strict";
/**
 * Created by viktor.shevchenko on 7/22/2014.
 */
(function () {
    'use strict';
    angular.module('knowledgeArticleModule')
        .directive('processKaContent', ['$location', '$anchorScroll', '$compile', function ($location, $anchorScroll, $compile) {
            return {
                restrict: 'A',
                link: function (scope, iElement, iAttr) {
                    var snippet = iAttr.processKaContent, content = $('<div>').append($.parseHTML(snippet)), links = content.find('a'), anchorRegEx = /^#[^-[\]{}()<>*+?.,\\\/^$|#]+$/;
                    //Below value received from ccs param: knowledgeAnchorParser
                    //Backslash not supported so shouldn't be removed from regex at all.
                    //It is recommended not to modify the ccs regex from security perspective.
                    //However configurability given for corner cases.
                    if (iAttr.anchorParser && iAttr.anchorParser !== 'skip') {
                        try {
                            anchorRegEx = "^#[^" + iAttr.anchorParser + "]+$";
                            anchorRegEx = new RegExp(anchorRegEx);
                        }
                        catch (e) {
                            console.error("Error in Regex sent through ccs");
                            anchorRegEx = /^#[^-[\]{}()<>*+?.,\\\/^$|#]+$/;
                        }
                    }
                    else if (iAttr.anchorParser === 'skip') {
                        // DRSMX-63584:[Ford] Using Old regEX as a fallback when knowledgeAnchorParser value is set to skip
                        anchorRegEx = /^#[\w\d]/;
                    }
                    scope.scrollToAnchor = function (event, anchor) {
                        $location.hash(anchor);
                        $anchorScroll();
                        event.preventDefault();
                        event.stopPropagation();
                    };
                    if (links.length) {
                        $.each(links, function (i, elm) {
                            var link = $(elm), href = link.attr('href');
                            if (anchorRegEx.test(href) && href.indexOf("#/knowledge/latest/") === -1) {
                                //Escape \ and " from the regEx
                                href = href.replace(/\\/g, "\\\\").replace(/\"/g, "\\\"");
                                link.attr('ng-click', 'scrollToAnchor($event, "' + href.replace(/^#/, '') + '")');
                                $compile(link)(scope);
                            }
                        });
                    }
                    iElement.append(content);
                }
            };
        }]);
}());