pustovitDmytro / lalaps

import { Decorator } from 'logger-decorator';

import { createLogger, format, transports } from 'winston';

import { name } from '../package';

/* eslint-disable camelcase */

const { npm_config_loglevel, DEBUG, LOG_LEVEL } = process.env;

/* istanbul ignore next */

const level = LOG_LEVEL || DEBUG && 'debug' || npm_config_loglevel || 'info';

/* eslint-enable camelcase*/

const appNameFormat = format(info => {

    info.application = name; // eslint-disable-line no-param-reassign

    return info;

});

export const LogLeveles = {

    error   : 0,

    warn    : 1,

    info    : 2,

    notice  : 3,

    verbose : 4,

    debug   : 5

};

const logger = createLogger({

    level,

    levels : LogLeveles,

    format : format.combine(

        appNameFormat(),

        format.timestamp(),

        format.json()

    ),

    transports : [ new transports.Console() ]

});

export const logDecorator = new Decorator({

    logger : logger.log.bind(logger),

    level  : 'info'

});

export default logger;