utils/src/logger.ts
ztimson 2dce1ad9ac
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Object logging with formatting
2024-10-16 20:32:41 -04:00

109 lines
2.9 KiB
TypeScript

import {TypedEmitter, TypedEvents} from './emitter';
import {JSONSanitize} from './objects.ts';
export const CliEffects = {
CLEAR: "\x1b[0m",
BRIGHT: "\x1b[1m",
DIM: "\x1b[2m",
UNDERSCORE: "\x1b[4m",
BLINK: "\x1b[5m",
REVERSE: "\x1b[7m",
HIDDEN: "\x1b[8m",
}
export const CliForeground = {
BLACK: '\x1b[30m',
RED: '\x1b[31m',
GREEN: '\x1b[32m',
YELLOW: '\x1b[33m',
BLUE: '\x1b[34m',
MAGENTA: '\x1b[35m',
CYAN: '\x1b[36m',
LIGHT_GREY: '\x1b[37m',
GREY: '\x1b[90m',
LIGHT_RED: '\x1b[91m',
LIGHT_GREEN: '\x1b[92m',
LIGHT_YELLOW: '\x1b[93m',
LIGHT_BLUE: '\x1b[94m',
LIGHT_MAGENTA: '\x1b[95m',
LIGHT_CYAN: '\x1b[96m',
WHITE: '\x1b[97m',
}
export const CliBackground = {
BLACK: "\x1b[40m",
RED: "\x1b[41m",
GREEN: "\x1b[42m",
YELLOW: "\x1b[43m",
BLUE: "\x1b[44m",
MAGENTA: "\x1b[45m",
CYAN: "\x1b[46m",
WHITE: "\x1b[47m",
GREY: "\x1b[100m",
}
export enum LOG_LEVEL {
ERROR = 0,
WARN = 1,
INFO = 2,
LOG = 3,
DEBUG = 4,
}
export type LoggerEvents = TypedEvents & {
'ERROR': (...args: any[]) => any;
'WARN': (...args: any[]) => any;
'INFO': (...args: any[]) => any;
'LOG': (...args: any[]) => any;
'DEBUG': (...args: any[]) => any;
};
export class Logger extends TypedEmitter<LoggerEvents> {
static LOG_LEVEL: LOG_LEVEL = LOG_LEVEL.DEBUG;
constructor(public readonly namespace?: string) {
super();
}
protected format(...text: any[]): string {
const now = new Date();
const timestamp = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()} ${now.getHours().toString().padStart(2, '0')}:${now.getMinutes().toString().padStart(2, '0')}:${now.getSeconds().toString().padStart(2, '0')}.${now.getMilliseconds().toString().padEnd(3, '0')}`;
return `${timestamp}${this.namespace ? ` [${this.namespace}]` : ''} ${text.map(t => typeof t == 'string' ? t : JSONSanitize(t, 2)).join(' ')}`;
}
debug(...args: any[]) {
if(Logger.LOG_LEVEL < LOG_LEVEL.DEBUG) return;
const str = this.format(...args);
Logger.emit(LOG_LEVEL.DEBUG, str);
console.debug(CliForeground.LIGHT_GREY + str + CliEffects.CLEAR);
}
log(...args: any[]) {
if(Logger.LOG_LEVEL < LOG_LEVEL.LOG) return;
const str = this.format(...args);
Logger.emit(LOG_LEVEL.LOG, str);
console.log(CliEffects.CLEAR + str);
}
info(...args: any[]) {
if(Logger.LOG_LEVEL < LOG_LEVEL.INFO) return;
const str = this.format(...args);
Logger.emit(LOG_LEVEL.INFO, str);
console.info(CliForeground.BLUE + str + CliEffects.CLEAR);
}
warn(...args: any[]) {
if(Logger.LOG_LEVEL < LOG_LEVEL.WARN) return;
const str = this.format(...args);
Logger.emit(LOG_LEVEL.WARN, str);
console.warn(CliForeground.YELLOW + str + CliEffects.CLEAR);
}
error(...args: any[]) {
if(Logger.LOG_LEVEL < LOG_LEVEL.ERROR) return;
const str = this.format(...args);
Logger.emit(LOG_LEVEL.ERROR, str);
console.error(CliForeground.RED + str + CliEffects.CLEAR);
}
}