function applyChanges(data, url, showResult, refreshPage) {
    var success = false;
    $.ajax({
        type : "POST",
        url : url,
        data : JSON.stringify(data),// now data come in this function
        contentType : "application/json; charset=utf-8",
        crossDomain : true,
        dataType : "json",
        success : function(data, status, jqXHR) {
            console.log("Applied changes successfully.")
            if (showResult) {
                var modal = $("#modal_success");
                modal.find('.modal-body p').text("Applied changes successfully");
                modal.modal('show');
            }
            if (refreshPage) {
                location.reload(true);
            }
        },

        error : function(jqXHR, status) {
            console.log(jqXHR);
            var modal = $("#modal_error");
            modal.find('.modal-body p').text(jqXHR["responseText"]);
            modal.modal('show');
        }
    });
}

function getTableData(table) {
    var rData = []

    // reformat - pretty format
    var records = []
    table.rows().every(function() {
        var r = this.data();
        var record = {}
        record["record_name"] = r[0].trim();
        record["record_type"] = r[1].trim();
        record["record_status"] = r[2].trim();
        record["record_ttl"] = r[3].trim();
        record["record_data"] = r[4].trim();
        records.push(record);
    });
    return records
}

function saveRow(oTable, nRow) {

    var jqInputs = $(oTable.row(nRow).node()).find("input");
    var jqSelect = $(oTable.row(nRow).node()).find("select");

    if (jqSelect[1].value == 'false') {
        status = 'Active';
    } else {
        status = 'Disabled';
    }


    oTable.cell(nRow,0).data(jqInputs[0].value);
    oTable.cell(nRow,1).data(jqSelect[0].value);
    oTable.cell(nRow,2).data(status);
    oTable.cell(nRow,3).data(jqSelect[2].value);
    oTable.cell(nRow,4).data(jqInputs[1].value);

    var record = jqInputs[0].value;
    var button_edit = "<button type=\"button\" class=\"btn btn-flat btn-warning button_edit\" id=\"" + record +  "\">Edit&nbsp;<i class=\"fa fa-edit\"></i></button>"
    var button_delete = "<button type=\"button\" class=\"btn btn-flat btn-danger button_delete\" id=\"" + record +  "\">Delete&nbsp;<i class=\"fa fa-trash\"></i></button>"

    oTable.cell(nRow,5).data(button_edit);
    oTable.cell(nRow,6).data(button_delete);

    oTable.draw();
}

function restoreRow(oTable, nRow) {
    var aData = oTable.row(nRow).data();
    var jqTds = $('>td', nRow);
    oTable.row(nRow).data(aData);
    oTable.draw();
}

function editRow(oTable, nRow) {
    var aData = oTable.row(nRow).data();
    var jqTds = oTable.cells(nRow,'').nodes();
    var record_types = "";
    for(var i = 0; i < records_allow_edit.length; i++) {
        var record_type = records_allow_edit[i];
        record_types += "<option value=\"" + record_type + "\">" + record_type + "</option>";
    }
    jqTds[0].innerHTML = '<input type="text" id="edit-row-focus" class="form-control input-small" value="' + aData[0] + '">';
    jqTds[1].innerHTML = '<select class="form-control" id="record_type" name="record_type" value="' + aData[1]  + '"' + '>' + record_types + '</select>';
    jqTds[2].innerHTML = '<select class="form-control" id="record_status" name="record_status" value="' + aData[2]  + '"' + '><option value="false">Active</option><option value="true">Disabled</option></select>';
    jqTds[3].innerHTML = '<select class="form-control" id="record_ttl" name="record_ttl" value="' + aData[3]  + '"' + '><option value="60">1 minute</option><option value="300">5 minutes</option><option value="1800">30 minutes</option><option value="3600">60 minutes</option><option value="86400">24 hours</option></select>';
    jqTds[4].innerHTML = '<input type="text" style="display:table-cell; width:100% !important" id="current_edit_record_data" name="current_edit_record_data" class="form-control input-small advance-data" value="' + aData[4].replace(/\"/g,"&quot;") + '">';
    jqTds[5].innerHTML = '<button type="button" class="btn btn-flat btn-primary button_save">Save</button>';
    jqTds[6].innerHTML = '<button type="button" class="btn btn-flat btn-primary button_cancel">Cancel</button>';

    // set current value of dropdows column
    if (aData[2] == 'Active'){
        isDisabled = 'false';
    }
    else {
        isDisabled = 'true';
    }

    SelectElement('record_type', aData[1]);
    SelectElement('record_status', isDisabled);
    SelectElement('record_ttl', aData[3]);
}

function SelectElement(elementID, valueToSelect)
{
    var element = document.getElementById(elementID);
    element.value = valueToSelect;
}

function getdnssec(url){

    $.getJSON(url, function(data) {
        var modal = $("#modal_dnssec_info");

        if (data['status'] == 'error'){
            modal.find('.modal-body p').text(data['msg']);
        }
        else {
            dnssec_msg = '';
            var dnssec = data['dnssec'];
            for (var i = 0; i < dnssec.length; i++) {
                if (dnssec[i]['active']){
                    dnssec_msg += '<form>'+
                    '<h3><strong>'+dnssec[i]['keytype']+'</strong></h3>'+
                    '<strong>DNSKEY</strong>'+
                    '<input class="form-control" autocomplete="off" type="text" readonly="true" value="'+dnssec[i]['dnskey']+'">'+
                    '</form>'+
                    '<br/>';
                    if(dnssec[i]['ds']){
                        var dsList = dnssec[i]['ds'];
                        dnssec_msg += '<strong>DS</strong>';
                        for (var j = 0; j < dsList.length; j++){
                            dnssec_msg += '<input class="form-control" autocomplete="off" type="text" readonly="true" value="'+dsList[j]+'">';
                        }
                    }
                    dnssec_msg += '</form>';
                }
            }
            modal.find('.modal-body p').html(dnssec_msg);
        }
        modal.modal('show');
    });
}

// pretty JSON
json_library = {
    replacer: function(match, pIndent, pKey, pVal, pEnd) {
        var key = '<span class=json-key>';
        var val = '<span class=json-value>';
        var str = '<span class=json-string>';
        var r = pIndent || '';
        if (pKey){
            r = r + key + pKey.replace(/[": ]/g, '') + '</span>: ';
        }
        if (pVal){
            r = r + (pVal[0] == '"' ? str : val) + pVal + '</span>';
        }
        return r + (pEnd || '');
    },
    prettyPrint: function(obj) {
        obj = obj.replace(/"/g, "\\\"").replace(/u'/g, "\'").replace(/'/g, "\"").replace(/(False|None)/g, "\"$1\"");
        var jsonData = JSON.parse(obj);
        var jsonLine = /^( *)("[\w]+": )?("[^"]*"|[\w.+-]*)?([,[{])?$/mg;
            return JSON.stringify(jsonData, null, 3)
            .replace(/&/g, '&amp;').replace(/\\"/g, '&quot;')
            .replace(/</g, '&lt;').replace(/>/g, '&gt;')
            .replace(jsonLine, json_library.replacer);
        }
    };