ninwa/libs/logger.js

130 lines
2.8 KiB
JavaScript
Raw Normal View History

2022-02-15 04:33:19 +01:00
const moment = require('moment');
// constants
const LOG_PREFIX_DEBUG = 'debug';
const LOG_PREFIX_INFO = 'info';
const LOG_PREFIX_WARNING = 'warning';
const LOG_PREFIX_ERROR = 'error';
const LOGLEVEL_DEBUG = 0;
const LOGLEVEL_INFO = 1;
const LOGLEVEL_WARNING = 2;
const LOGLEVEL_ERROR = 3;
let loglevel;
let timestamp;
function initialize(loglevel, timestamp) {
setLogLevel(loglevel);
setTimestamp(timestamp);
}
// set the loglevel
function setLogLevel(value) {
switch (value) {
2022-02-15 04:33:19 +01:00
case LOG_PREFIX_DEBUG:
case LOGLEVEL_DEBUG:
loglevel = LOGLEVEL_DEBUG;
break;
2022-02-15 04:33:19 +01:00
case LOG_PREFIX_INFO:
case LOGLEVEL_INFO:
loglevel = LOGLEVEL_INFO;
break;
2022-02-15 04:33:19 +01:00
case LOG_PREFIX_WARNING:
case LOGLEVEL_WARNING:
loglevel = LOGLEVEL_WARNING;
break;
2022-02-15 04:33:19 +01:00
case LOG_PREFIX_ERROR:
case LOGLEVEL_ERROR:
loglevel = LOGLEVEL_ERROR;
break;
2022-02-15 04:33:19 +01:00
default:
loglevel = LOGLEVEL_INFO;
2022-02-15 04:33:19 +01:00
}
}
// set the timestamp format
function setTimestamp(value) {
timestamp = value || 'DD.MM.YYYY HH:mm:ss:SS';
}
2022-02-15 04:33:19 +01:00
// prefix log with 'info'
function info(message) {
if (loglevel > LOGLEVEL_INFO) {
return;
}
trace(message);
}
// prefix log with 'info'
function warn(message) {
if (loglevel > LOGLEVEL_WARNING) {
return;
}
trace(message, 'warning');
}
// prefix log with 'debug'
function debug(message) {
if (loglevel > LOGLEVEL_DEBUG) {
return;
}
trace(message, 'debug');
}
// prefix log with 'error'
function error(message) {
if (loglevel > LOGLEVEL_ERROR) {
return;
}
if (message.stack) {
trace(message.stack, 'error');
return;
}
if (message.errors !== undefined) {
for (let index = 0; index < message.errors.length; index++) {
trace(message.errors[index], 'error');
}
return;
}
if (message.message) {
trace(message.message, 'error');
return;
}
2022-02-15 04:33:19 +01:00
trace(message, 'error');
}
// default logging function
function trace(message, prefix) {
if (message === undefined || message === null || message.length === 0) {
return;
}
if (prefix === undefined || prefix === null || prefix.length === 0) {
prefix = 'info';
}
let print;
switch (prefix) {
case 'error':
print = console.error;
break;
case 'debug':
print = console.debug;
break;
case 'warning':
print = console.warn;
break;
default:
print = console.log;
}
message = moment().format(timestamp) + ' | ' + prefix + ' > ' + message;
2022-02-15 04:33:19 +01:00
print(message);
}
// exports
module.exports = {
initialize,
2022-02-15 04:33:19 +01:00
info,
warn,
debug,
error
};