module.exports = function() {

    this.getTimestamp = function() {
            var date = new Date();
            var year = date.getFullYear();
            var month = ("0"+(date.getMonth()+1)).substr(-2);
            var day = ("0"+date.getDate()).substr(-2);
            var hour = ("0"+date.getHours()).substr(-2);
            var minutes = ("0"+date.getMinutes()).substr(-2);
            var seconds = ("0"+date.getSeconds()).substr(-2);
            return year+"-"+month+"-"+day+" "+hour+":"+minutes+":"+seconds;
    };

    this.log = function(desc, message) {
      console.log(getTimestamp() + ' >> ' + desc + " :: ");
      console.log(message);
    };

    this.getTime = function() {
            var date = new Date();
            var hour = ("0"+date.getHours()).substr(-2);
            var minutes = ("0"+date.getMinutes()).substr(-2);
            var seconds = ("0"+date.getSeconds()).substr(-2);
            return hour+":"+minutes+":"+seconds;
    };

    this.forceGC = function() {
       if (global.gc) {
           console.log(getTimestamp() + " >> Starting Garbage Collector...");
           global.gc();
       } else {
           console.warn("Garbage Collector não habilitado! Execute seu programa com node --expose-gc app.js.");
       }
    };

    this.isJSON = function(str) {
       try {
           return (JSON.parse(str) && !!str);
       } catch (e) {
           return false;
       }
    }
}