BetterDiscordApp-v2/common/modules/logger.js

86 lines
2.6 KiB
JavaScript

/**
* BetterDiscord Logger Module
* Copyright (c) 2015-present Jiiks/JsSucks - https://github.com/Jiiks / https://github.com/JsSucks
* All rights reserved.
* https://betterdiscord.net
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import { FileUtils } from './utils';
import node_utils from 'util';
export const logLevels = {
'log': 'log',
'warn': 'warn',
'err': 'error',
'error': 'error',
'debug': 'debug',
'dbg': 'debug',
'info': 'info'
};
export default class Logger {
constructor(file) {
this.logs = [];
this.file = file;
}
err(module, message) { this.log(module, message, 'err'); }
warn(module, message) { this.log(module, message, 'warn'); }
info(module, message) { this.log(module, message, 'info'); }
dbg(module, message) { this.log(module, message, 'dbg'); }
log(module, message, level = 'log') {
level = Logger.parseLevel(level);
message = typeof message === 'object' && message instanceof Array ? message : [message];
console[level]('[%cBetter%cDiscord:%s]', 'color: #3E82E5', '', `${module}${level === 'debug' ? '|DBG' : ''}`, ...message);
const message_string = message.map(m => typeof m === 'string' ? m : node_utils.inspect(m, {showProxy: true})).join(' ');
this.logs.push(`${level.toUpperCase()} : [${Logger.timestamp}|${module}] ${message_string}`);
if (this.file)
FileUtils.appendToFile(this.file, `${level.toUpperCase()} : [${Logger.timestamp}|${module}] ${message_string}\n`);
}
logError(err) {
if (!err.module && !err.message) {
console.log(err);
return;
}
this.err(err.module, err.message);
}
static parseLevel(level) {
return logLevels.hasOwnProperty(level) ? logLevels[level] : 'log';
}
static get timestamp() {
return (new Date()).toLocaleString('en-GB');
}
trimLogFile() {
if (!this.file) throw new Error('This logger does not have a file.');
return Logger.trimLogFile(this.file);
}
static async trimLogFile(file) {
const stat = await FileUtils.stat(file);
if (stat.size < 20 * 1024 * 1024) return; // 20 MB
const logs = await FileUtils.readFile(file);
// Trim to about 1 MB
const trimFrom = logs.substr(0 - 1024 * 1024).lastIndexOf('\nLOG : [');
if (trimFrom < 0) return;
await FileUtils.writeFile(file, logs.substr(trimFrom));
}
}
export const ClientLogger = new Logger();