logger.ts

import winston, { addColors, format } from 'winston'

const levels = {
    error: 0,
    warn: 1,
    info: 2,
    http: 3,
    debug: 4
}

const level = () => {
    const env = process.env.NODE_ENV || 'dev'
    const isDev = env === 'dev'

    return isDev ? 'debug' : 'warn'
}

const colors = {
    error: 'red',
    warn: 'yellow',
    info: 'green',
    http: 'magenta',
    debug: 'white'
}

addColors(colors)

const nformat = format.combine(
    format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss:ms' }),
    format.colorize({ all: true }),
    format.printf(
        (info) => `${info.timestamp} ${info.level} ${info.message}`
    )
)

const transports = [
    new winston.transports.Console(),
    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: nformat,
    transports
})

export default Logger