Cloudflare-DDNS-Updater/src/libs/Logger.ts

import winston from "winston";

const levels = {
  critical: 0,
  error: 1,
  alert: 2,
  warn: 3,
  info: 4,
  http: 5,
  debug: 6,
};

const level = () => {
  const env = process.env.NODE_ENV || "development";
  const isDevelopment = env === "development";
  return isDevelopment ? "debug" : "info";
};

const colors = {
  critical: "red",
  error: "red",
  alert: "red",
  warn: "yellow",
  info: "green",
  http: "magenta",
  debug: "white",
};

winston.addColors(colors);

const consoleFormat = winston.format.combine(
  winston.format.timestamp({ format: "YYYY-MM-DD HH:mm:ss:ms" }),
  winston.format.colorize({ all: true }),
  winston.format.printf((info) => `[${info.timestamp}] [${info.level}] ${info.message}`),
);

const format = winston.format.combine(
  winston.format.timestamp({
    format: new Date().toISOString(),
  }),
  winston.format.json(),
);

const transports = [
  new winston.transports.Console({
    format: consoleFormat,
  }),
  new winston.transports.File({
    filename: "logs/error.log",
    level: "error",
  }),
  new winston.transports.File({ filename: "logs/all.log" }),
];

const Logger = winston.createLogger({
  level: level(),
  levels,
  format,
  transports,
});

export default Logger;