'use strict';

angular.module('robotoPromotoApp')

    .directive('myTable', function () {
        return function (scope, element, attrs) {

            // apply DataTable options, use defaults if none specified by user
            var options = {};
            if (attrs.myTable.length > 0) {
                options = scope.$eval(attrs.myTable);
            } else {
                options = {
                    "bStateSave": true,
                    "iCookieDuration": 2419200, /* 1 month */
                    "bJQueryUI": true,
                    "bPaginate": false,
                    "bLengthChange": false,
                    "bFilter": false,
                    "bInfo": false,
                    "bDestroy": true
                };
            }

            // Tell the dataTables plugin what columns to use
            // We can either derive them from the dom, or use setup from the controller
            var explicitColumns = [];
            element.find('th').each(function (index, elem) {
                explicitColumns.push($(elem).text());
            });
            if (explicitColumns.length > 0) {
                options["aoColumns"] = explicitColumns;
            } else if (attrs.aoColumns) {
                options["aoColumns"] = scope.$eval(attrs.aoColumns);
            }

            // aoColumnDefs is dataTables way of providing fine control over column config
            if (attrs.aoColumnDefs) {
                options["aoColumnDefs"] = scope.$eval(attrs.aoColumnDefs);
            }

            // apply the plugin
            var dataTable = element.dataTable(options);

            // watch for any changes to our data, rebuild the DataTable
            scope.$watch(attrs.aaData, function (value) {
                var val = value || null;
                if (val) {
                    dataTable.fnClearTable();
                    dataTable.fnAddData(scope.$eval(attrs.aaData));
                }
            });
        };
    });