(function () {
    'use strict';
    appDS2.filter('vidDate', ['$filter', vidDate]);

    function vidDate($filter) {
        var suffixes = ["th", "st", "nd", "rd"];
        return function(input, format) {
            if(input) {
                var dtfilter = $filter('date')(input, format);
                var day = parseInt($filter('date')(input, 'dd'));
                var relevantDigits = (day < 30) ? day % 20 : day % 30;
                var suffix = (relevantDigits <= 3) ? suffixes[relevantDigits] : suffixes[0];
                return dtfilter.replace('oo', suffix);
            }
            return input;
        };
    }
})();