Logger.js

var logdir = "./logs/";
var print = console.log.bind(console);
var fs = require('fs');
var rawFile = logdir+"@raw.log";
var EOL = require('os').EOL;

var parseServerMsg = function (src, str) { // Goes under Logger['info']
    if (src.substr(0,2) !== "<-" && src.substr(0,2) !== "->") return console.log.call(console, src, str);
    var truestr = str, truesrc = src;
    if (src.length > 2) {
        truesrc = src.substr(0,2);
        truestr = src.substr(2);
    }
    var network = "TestIRC"; // Bot.ServerInfo["NETWORK"] contains the name
    var networkDir = logdir+network+"/"
    if (!fs.existsSync(networkDir)) fs.mkdirSync(networkDir);
    var data = truestr.split(' ');
    var timeStamp = "["+Date().split(' ')[4]+"] ";
    var rawLine = timeStamp+truesrc+" "+truestr+EOL;
    fs.appendFile(rawFile, rawLine); // Log Raw
    if (data[0] === "PING") return;
    var msgFrom;
    if (truesrc === "->") { // Outgoing message (we sent it)
        msgFrom = "(ME)"; // Bot nick goes here
    }
    else msgFrom = data[0].substr(1); // :[email protected]
    var msgType = data[1];
    switch (msgType) {
        case 'NOTICE':
            var notice = true;
        case 'PRIVMSG':
            var msgTo = data[2];
            var isChannel = msgTo.match(/[~&@%\+]?(#.+)/); // Consider using Bot.ServerInfo["PREFIX"] for auth symbols
            var msg = data.slice(3).join(' ').substr(1); // substr removes colon -> :text here
            var logMsg = timeStamp + "<" + msgFrom.split('!')[0] + "> " + msg + EOL;
            var logFile = networkDir + ( isChannel ? isChannel[1] : msgTo ) + ".log"; // TODO: seperate log files by date.
            fs.appendFile(logFile, logMsg);
            break;
    }
}

var Logger = function () {
    return {
/*
        debug: print,
        info: print,
        note: print,
        notice: print,
        warning: print,
        crit: print,
        alert: print,
        emerg: print
*/
        debug:  function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "debug src: "+src+" str: "+str+EOL); },
        info:   function (src, str) {
            print(src, str);
            fs.appendFile(logdir+"master.log", "info src: "+src+" str: "+str+EOL);
            fs.appendFile(rawFile, "src: "+src+" str: "+str+EOL);
            parseServerMsg(src, str);
        },
        note:   function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "note src: "+src+" str: "+str+EOL); },
        notice: function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "notice src: "+src+" str: "+str+EOL); },
        warning:function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "warning src: "+src+" str: "+str+EOL); },
        crit:   function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "crit src: "+src+" str: "+str+EOL); },
        alert:  function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "alert src: "+src+" str: "+str+EOL); },
        emerg:  function (src, str) { print(src, str); fs.appendFile(logdir+"master.log", "emerg src: "+src+" str: "+str+EOL); }
    }
};

module.exports = Logger;