logelas/build/loggerClass.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const logLevel_1 = require("./options/logLevel");
const events_1 = require("events");
class Logger extends events_1.EventEmitter {
    constructor(fileName, debugName, logLevel = logLevel_1.LogLevel.Info, applicationName) {
        super();
        this.fileName = fileName;
        this.debuglog = require('debug')(debugName);
        this._applicationName = applicationName || 'application';
        if (process.env.NODE_LOG_CONSOLE === 'true') {
            this.on(fileName, (data) => {
                console.log(data);
            });
        }
        this.level = logLevel;
    }
    close() {
        return true;
    }
    produce(level, ...args) {
        const logargs = args.map(item => arg(item));
        this.debuglog(...args);
        this.emit(this.fileName, Object.assign({ level, name: this._applicationName }, logargs));
    }
    log(...args) {
        this.trace(...args);
    }
    info(...args) {
        if (logLevel_1.LogLevel.Info <= this.level) {
            this.produce('info', ...args);
        }
    }
    warn(...args) {
        if (logLevel_1.LogLevel.Warn <= this.level) {
            this.produce('warning', ...args);
        }
    }
    debug(...args) {
        this.trace(...args);
    }
    error(...args) {
        console.error(JSON.stringify(args));
        this.produce('error', ...args);
    }
    trace(...args) {
        if (logLevel_1.LogLevel.Trace <= this.level) {
            this.produce('trace', ...args);
        }
    }
    silly(...args) {
        this.trace(...args);
    }
}
exports.Logger = Logger;
function arg(singleArg) {
    if (singleArg)
        try {
            if (typeof singleArg === 'function')
                return `func ${singleArg.name}`;
            if (singleArg.stack && singleArg.message) {
                let a = { stack: singleArg.stack, message: singleArg.message };
                return JSON.stringify(a);
            }
            else if (typeof singleArg === 'object') {
                return JSON.stringify(singleArg);
            }
            else {
                if (typeof singleArg === 'string') {
                    return singleArg.replace(/\r\n/g, '');
                }
                return singleArg;
            }
        }
        catch (error) {
            return '[circular]';
        }
    return '';
}
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