galactic-bot/src/middleware/Logger.js
2022-01-27 01:11:14 +02:00

131 lines
3.7 KiB
JavaScript

/* eslint-disable max-len */
const chalk = require('chalk');
const moment = require('moment');
const path = require('path');
const fs = require('fs');
const Util = require('../Util.js');
const Constants = {
Types: [
'error',
'warn',
'info',
'debug',
'status'
],
Colors: {
error: 'red',
warn: 'yellow',
info: 'blue',
debug: 'magenta',
status: 'cyanBright'
}
};
const stripRegex = /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nqry=><]/gu; //eslint-disable-line no-control-regex
class Logger {
constructor(manager, options) {
this.manager = manager;
this.shardingManager = manager.shardingManager;
this._options = options;
this._writeStream = this._loadFile();
this._errorWriteStream = this._loadFile('error');
this.shardingManager
.on('shardCreate', (shard) => {
this.write('debug', "Shard created.", shard);
});
}
write(type = 'info', string = '', shard = null, api = false) {
type = type.toLowerCase();
let color = Constants.Colors[type];
if(!color) color = Constants.Colors.info;
const header = `${chalk[color](`[${Util.date}][${shard ? `${api ? 'api-s' : 'shard'}${this._shardId(shard)}` : `${api ? 'api-man' : 'manager'}`}]`)}`;
const maximumCharacters = Math.max(...Constants.Types.map((t) => t.length));
const spacers = maximumCharacters - type.length;
const text = `${chalk[color](type)}${" ".repeat(spacers)} ${header} : ${string}`;
console.log(text); //eslint-disable-line no-console
if(this[type === 'error' ? '_errorWriteStream' : '_writeStream']) {
const strippedText = text.replace(stripRegex, '');
this[type === 'error' ? '_errorWriteStream' : '_writeStream']
.write(`\n${strippedText}`);
}
}
_loadFile(type = null) {
const filename = `${moment().format('YYYY-MM-DD')}${type ? `-${type}` : ''}`;
const directory = path.join(process.cwd(), this._options.directory);
//Ensuring that the log folders exist.
if(!fs.existsSync(directory)) fs.mkdirSync(directory);
//Creating the log files.
const filepath = path.join(directory, `${filename}.log`);
let filedirectory = null;
if(!fs.existsSync(filepath)) {
fs.writeFileSync(filepath, '');
filedirectory = filepath;
this.write('debug', `Creating new${type ? ` ${type} ` : ' '}log file at: ${chalk.bold(`"${filepath}"`)}`);
} else {
this.write('debug', `Found existing${type ? ` ${type} ` : ' '}log file, using: ${chalk.bold(`"${filepath}"`)}`);
filedirectory = filepath;
}
if(filedirectory) {
return fs.createWriteStream(filedirectory, { flags: 'a' }); //Appends to file.
}
this.write('error', "Unable to open write stream for log file, proceeding without one.");
return null;
}
//Messages coming from the shards process.send functions.
_handleMessage(shard, message) {
this.write(message.type, message.message, shard, message._api);
}
_shardId(shard) {
const { id } = shard;
return `${id}`.length === 1 ? `0${id}` : `${id}`;
}
error(message) {
this.write('error', message);
}
warn(message) {
this.write('warn', message);
}
debug(message) {
this.write('debug', message);
}
info(message) {
this.write('info', message);
}
status(message) {
this.write('status', message);
}
}
module.exports = Logger;