swaf/dist/Logger.js

import config from "config";
import { v4 as uuid } from "uuid";
import Log from "./models/Log";
const LOG_LEVEL = config.get('log_level');
const DB_LOG_LEVEL = config.get('db_log_level');
export default class Logger {
    static silentError(error, ...message) {
        return this.log('ERROR', message, error, true) || '';
    }
    static error(error, ...message) {
        return this.log('ERROR', message, error) || '';
    }
    static warn(...message) {
        this.log('WARN', message);
    }
    static info(...message) {
        this.log('INFO', message);
    }
    static debug(...message) {
        this.log('DEBUG', message);
    }
    static dev(...message) {
        this.log('DEV', message);
    }
    static log(level, message, error, silent = false) {
        const levelIndex = LogLevel[level];
        if (levelIndex <= LogLevel[LOG_LEVEL]) {
            if (error) {
                if (levelIndex > LogLevel.ERROR)
                    this.warn(`Wrong log level ${level} with attached error.`);
            }
            else {
                if (levelIndex <= LogLevel.ERROR)
                    this.warn(`No error attached with log level ${level}.`);
            }
            const computedMsg = message.map(v => {
                if (typeof v === 'string') {
                    return v;
                }
                else {
                    return JSON.stringify(v, (key, value) => {
                        if (value instanceof Object) {
                            if (value.type === 'Buffer') {
                                return `Buffer<${Buffer.from(value.data).toString('hex')}>`;
                            }
                            else if (value !== v) {
                                return `[object Object]`;
                            }
                        }
                        if (typeof value === 'string' && value.length > 96) {
                            return value.substr(0, 96) + '...';
                        }
                        return value;
                    }, 4);
                }
            }).join(' ');
            const log = new Log({});
            log.setLevel(level);
            log.message = computedMsg;
            log.setError(error);
            let logID = Buffer.alloc(16);
            uuid({}, logID);
            log.setLogID(logID);
            let output = `[${level}] `;
            let pad = output.length;
            if (levelIndex <= LogLevel[DB_LOG_LEVEL])
                output += `${log.getLogID()} - `;
            output += computedMsg.replace(/\n/g, '\n' + ' '.repeat(pad));
            switch (level) {
                case "ERROR":
                    if (silent || !error) {
                        console.error(output);
                    }
                    else {
                        console.error(output, error);
                    }
                    break;
                case "WARN":
                    console.warn(output);
                    break;
                case "INFO":
                    console.info(output);
                    break;
                case "DEBUG":
                case "DEV":
                    console.debug(output);
                    break;
            }
            if (levelIndex <= LogLevel[DB_LOG_LEVEL]) {
                log.save().catch(err => {
                    if (!silent && err.message.indexOf('ECONNREFUSED') < 0) {
                        console.error({ save_err: err, error });
                    }
                });
            }
            return log.getLogID();
        }
        return null;
    }
    constructor() {
    }
}
export var LogLevel;
(function (LogLevel) {
    LogLevel[LogLevel["ERROR"] = 0] = "ERROR";
    LogLevel[LogLevel["WARN"] = 1] = "WARN";
    LogLevel[LogLevel["INFO"] = 2] = "INFO";
    LogLevel[LogLevel["DEBUG"] = 3] = "DEBUG";
    LogLevel[LogLevel["DEV"] = 4] = "DEV";
})(LogLevel || (LogLevel = {}));
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