NaturalIntelligence/Stubmatic

var color = require('./util/colors').color;

var quiet = true; //when -v is not given
var debug = false; 
var quietLog = true; //when --logs is not given
var filelogger = {};
var path = require('path');
var fs = require('fs');
var winston = require('winston');

if(quietLog){
    var debuglogpath;
    var errlogpath;
    var dirPath= global.basePath || process.cwd(); //root of repo

    var logDirPath = path.join(dirPath,"logs");
    if(isExist(logDirPath)){
        dirPath = logDirPath;
    }

    debuglogpath = path.join(dirPath,"debug.log");
    errlogpath = path.join(dirPath,"exceptions.log");

    //console.log("writing logs to: " + debuglogpath +", "+ errlogpath);

    filelogger = new (winston.Logger)({
      transports: [
        //new (winston.transports.Console)({ json: false, timestamp: true }),
        new winston.transports.File({ filename: debuglogpath , json: false })
      ],
      exceptionHandlers: [
        //new (winston.transports.Console)({ json: false, timestamp: true }),
        new winston.transports.File({ filename: errlogpath, json: false })
      ],
      exitOnError: false
    });
}

exports.info = function(msg,colorCode){
    exports.detailInfo(msg);
    logToConsole(msg,colorCode);
}

exports.detailInfo = function(msg){
    quietLog || filelogger.info(msg);
}

exports.debug = function(msg){
    debug && exports.warn(msg);
}

exports.warn = function(msg){
    logToConsole(msg,'yellow');
    quietLog || filelogger.warn(msg);
}

exports.error = function(msg){
    logToConsole(msg,'red');
    //console.trace(msg)
    quietLog || filelogger.error(msg);
}

function logToConsole(msg,colorCode){
    if(!quiet){
        if(colorCode){
            msg = color(msg,colorCode.toLowerCase());
        }
        console.log(msg);
    }
}

exports.setVerbose= function(flag){
    quiet = !flag;
}

exports.debugLogs= function(flag){
    debug = flag;
}

exports.writeLogs= function(flag){
    quietLog = !flag;
}

function isExist(path){
    try{
        fs.accessSync(path, fs.F_OK);
        return true;
    }catch(e){
        return false;
    }
}

if(quietLog){
    process.on('uncaughtException', function (err) {
        if(err.response){
            logger.error(fileName + " doesn't exist");
            err.response.removeHeader("content-type");
            err.response.statusCode = 500;
            err.response.end("");
        }
      exports.error(err);
      //process.exit(1); //want the server keep running
    });
}