var bootstrapDataTables = function () {
    return {
        init: function () {
            $.extend(true, $.fn.dataTable.defaults, {
                "sDom": "<'datatable-top'<'pull-left'l><'pull-right'f>r>t<'datatable-bottom'<'pull-left'i><'pull-right'p>>",
                "sPaginationType": "bootstrap",
                "oLanguage": {
                    "sLengthMenu": "_MENU_"
                }
            });

            /* Default class modification */
            $.extend($.fn.dataTableExt.oStdClasses, {
                "sWrapper": "dataTables_wrapper form-inline",
                "sFilterInput": "form-control",
                "sLengthSelect": "chosen"
            });

            /* API method to get paging information */
            $.fn.dataTableExt.oApi.fnPagingInfo = function (oSettings) {
                return {
                    "iStart": oSettings._iDisplayStart,
                    "iEnd": oSettings.fnDisplayEnd(),
                    "iLength": oSettings._iDisplayLength,
                    "iTotal": oSettings.fnRecordsTotal(),
                    "iFilteredTotal": oSettings.fnRecordsDisplay(),
                    "iPage": oSettings._iDisplayLength === -1 ?
                        0 : Math.ceil(oSettings._iDisplayStart / oSettings._iDisplayLength),
                    "iTotalPages": oSettings._iDisplayLength === -1 ?
                        0 : Math.ceil(oSettings.fnRecordsDisplay() / oSettings._iDisplayLength)
                };
            };

            /* Bootstrap style pagination control */
            $.extend($.fn.dataTableExt.oPagination, {
                "bootstrap": {
                    "fnInit": function (oSettings, nPaging, fnDraw) {
                        var oLang = oSettings.oLanguage.oPaginate;
                        var fnClickHandler = function (e) {
                            e.preventDefault();
                            if (oSettings.oApi._fnPageChange(oSettings, e.data.action)) {
                                fnDraw(oSettings);
                            }
                        };

                        $(nPaging).append(
                            '<ul class="pagination pagination-sm">' +
                            '<li class="prev disabled"><a href="#" title="' + oLang.sPrevious + '"><i class="ti-arrow-left mr5"></i>Previous</a></li>' +
                            '<li class="next disabled"><a href="#" title="' + oLang.sNext + '"><i class="ti-arrow-right mr5"></i>Next</a></li>' +
                            '</ul>'
                        );
                        var els = $('a', nPaging);
                        $(els[0]).bind('click.DT', {
                            action: "previous"
                        }, fnClickHandler);
                        $(els[1]).bind('click.DT', {
                            action: "next"
                        }, fnClickHandler);
                    },

                    "fnUpdate": function (oSettings, fnDraw) {
                        var iListLength = 4;
                        var oPaging = oSettings.oInstance.fnPagingInfo();
                        var an = oSettings.aanFeatures.p;
                        var i, ien, j, sClass, iStart, iEnd, iHalf = Math.floor(iListLength / 2);

                        if (oPaging.iTotalPages < iListLength) {
                            iStart = 1;
                            iEnd = oPaging.iTotalPages;
                        } else if (oPaging.iPage <= iHalf) {
                            iStart = 1;
                            iEnd = iListLength;
                        } else if (oPaging.iPage >= (oPaging.iTotalPages - iHalf)) {
                            iStart = oPaging.iTotalPages - iListLength + 1;
                            iEnd = oPaging.iTotalPages;
                        } else {
                            iStart = oPaging.iPage - iHalf + 1;
                            iEnd = iStart + iListLength - 1;
                        }

                        for (i = 0, ien = an.length; i < ien; i++) {
                            // Remove the middle elements
                            $('li:gt(0)', an[i]).filter(':not(:last)').remove();

                            // Add the new list items and their event handlers
                            for (j = iStart; j <= iEnd; j++) {
                                sClass = (j === oPaging.iPage + 1) ? 'class="active"' : '';
                                $('<li ' + sClass + '><a href="#">' + j + '</a></li>')
                                    .insertBefore($('li:last', an[i])[0])
                                    .bind('click', function (e) {
                                        e.preventDefault();
                                        oSettings._iDisplayStart = (parseInt($('a', this).text(), 10) - 1) * oPaging.iLength;
                                        fnDraw(oSettings);
                                    });
                            }

                            // Add / remove disabled classes from the static elements
                            if (oPaging.iPage === 0) {
                                $('li:first', an[i]).addClass('disabled');
                            } else {
                                $('li:first', an[i]).removeClass('disabled');
                            }

                            if (oPaging.iPage === oPaging.iTotalPages - 1 || oPaging.iTotalPages === 0) {
                                $('li:last', an[i]).addClass('disabled');
                            } else {
                                $('li:last', an[i]).removeClass('disabled');
                            }
                        }
                    }
                }
            });

            /*
             * TableTools Bootstrap compatibility
             * Required TableTools 2.1+
             */
            if ($.fn.DataTable.TableTools) {
                // Set the classes that TableTools uses to something suitable for Bootstrap
                $.extend(true, $.fn.DataTable.TableTools.classes, {
                    "container": "DTTT btn-group",
                    "buttons": {
                        "normal": "btn btn-default",
                        "disabled": "disabled"
                    },
                    "collection": {
                        "container": "DTTT_dropdown dropdown-menu",
                        "buttons": {
                            "normal": "",
                            "disabled": "disabled"
                        }
                    },
                    "print": {
                        "info": "DTTT_print_info modal"
                    },
                    "select": {
                        "row": "active"
                    }
                });

                // Have the collection use a bootstrap compatible dropdown
                $.extend(true, $.fn.DataTable.TableTools.DEFAULTS.oTags, {
                    "collection": {
                        "container": "ul",
                        "button": "li",
                        "liner": "a"
                    }
                });
            }
        }
    };
}();

$(function () {
    "use strict";
    bootstrapDataTables.init();
});