var http = require('http');
var net = require('net');
var fs = require('fs');
var log = [];
var limit = 32;
var irc = {
    s: {},
    nick: 'echobot',
    nickpass: 'lockdown',
    user: 'echobot echobot nfdb.net EchoBot',
    server: 'chat.freenode.net',
    port: 6666,
    chan: 'nfdtest',
    cmd: '.',
    priv: '+'
}

for (var i=0;i<limit;i++) {
    log[i] = {line:'', nick:'', time:0}
}

function pad(n) { return n < 10 ? '0'+n : n; }

http.createServer(function (req, res) {
    switch (req.url) {
        case "/":
            res.writeHead(200, {'Content-Type': 'text/html'});
            var page = fs.readFileSync('index.htm', 'utf8');
            res.write(page);
            res.end();
            break;
        case "/read":
            res.writeHead(200, {'Content-Type': 'text/plain'});
            var lineformat = fs.readFileSync('line.format', 'utf8');
            var lineresult = '';
            for (line in log) {
                lineresult = lineformat.replace('||||', log[line].line, 'gi');
                lineresult = lineresult.replace('^^^^', log[line].nick, 'gi');
                var td = new Date(log[line].time);
                lineresult = lineresult.replace('{H}', pad(td.getHours()), 'gi');
                lineresult = lineresult.replace('{M}', pad(td.getMinutes()), 'gi');
                lineresult = lineresult.replace('{S}', pad(td.getSeconds()), 'gi');
                lineresult = lineresult.replace('{T}', log[line].time, 'gi');
                res.write((log[line].time > 0 ? lineresult : '<div class="line">&nbsp;</div>')+"\n");
            }
            res.end();
            break;
        case "/fade.png":
            res.writeHead(200, {'Content-Type': 'image/png'});
            var buff = fs.readFileSync('fade.png');
            res.write(buff);
            res.end();
        default:
            res.writeHead(404, {'Content-Type': 'text/html'});
            res.write("The requested page does not exist.");
            res.end();
    }
}).listen(80, 'nfd.ath.cx');
console.log('HTTP Server Running');
console.log('TCP Server Listening');
irc.s = new net.Socket();
irc.s.addListener('data', ircdata);
irc.s.addListener('connect', ircconnect);
irc.s.addListener('end', ircdisconnect);
irc.s.setEncoding('ascii');

var notconnected = false;
do {
    notconnected = false;
    try {
        irc.s.connect(irc.port, irc.server);
        console.log('Connecting to IRC server...');
    } catch (e) {
        console.log('Error connecting to server... '+e);
        console.log('Retrying connection...');
        notconnected = true;
    }
} while (notconnected == true);

function ircconnect() {
    console.log('IRC Connection Established.');
    irc.s.write('NICK '+irc.nick+'\n');
    irc.s.write('USER '+irc.user+'\n');
    irc.s.write('JOIN #'+irc.chan+'\n');
}

function ircdisconnect() {
    console.log('Connection lost.');
    irc.s.connect(irc.port, irc.server);
    console.log('Reconnecting...');
}

function ircdata(data) {
    //console.log('Data recieved: '+data.trim());
    var lines = data.split('\n');
    for (var i = 0; i < lines.length; i++) {
        processline(lines[i]);
    }
}

function processline(data) {
    var dat = data.split(' ');
    var musr = {
        nick: dat[0].split('!')[0],
        host: dat[0].split('!')[1]
    };
    switch (dat[0]) {
        case 'PING':
            irc.s.write('PONG '+dat[1].substr(1)+'\n');
            console.log('Pong!');
            break;
        default:
            switch (dat[1]) {
                case 'PRIVMSG':
                    var msg = dat.slice(3);
                    msg = msg.join(' ');
                    msg = msg.trim().substr(1);
                    if (dat[3].substr(1,1) == irc.cmd) {
                        console.log('Command from '+musr.nick+': "'+dat[3].substr(1).trim()+'"');
                        // Send a command to the tile page?
                    } else {
                        console.log('Message from '+musr.nick.substr(1)+': "'+msg+'"');
                        log.splice(0,1);
                        var d = new Date();
                        log.push({line:msg, nick:musr.nick.substr(1), time:d.getTime()});
                    }
                    break;
                case '372': // MOTD, ignore it.
                    break;
                case '433': // Nick in use
                    irc.s.write('PRIVMSG nickserv IDENTIFY '+irc.nick+' '+irc.nickpass+'\n'); // Identify with ident services.
                    irc.s.write('PRIVMSG nickserv GHOST\n'); // Attempt to ghost anyone using the nick.
                    irc.s.write('NICK '+irc.nick+'\n'); // Attempt to set nick back to EchoBot.
                    irc.s.write('USER '+irc.user+'\n'); // Perform user auth.
                    irc.s.write('JOIN #'+irc.chan+'\n'); // Join the channel.
                    break;
                default:
                    // The bot didn't recognize the data recieved, ignore it.
            }
    }
}