// var IRC = require('./IRC').IRC;
var IRC = require('../node_modules/node-irc/IRC.js').IRC
  , irc = new IRC('irc.freenode.net', 6667)
  , url = require('url')
  , http = require('http')
  , _ = require('underscore');

var BitrafBot = function(config) {
  var nick = '';
  var nickCount = 0;
  var nickAdditions = [ '', '^', '-', '_', '\\', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' ];

  function findNick() {
    if (nickCount == nickAdditions.length) {
      nickCount = 0;
    }

    return config.nick + nickAdditions[nickCount++];
  }
  nick = findNick();

  irc.on('connected', function(server) {
    console.log('connected to ' + server);
    irc.join(config.channel, function(error) {
      irc.privmsg(config.channel, 'well hello yall');
    });
  });
  irc.on('privmsg', function(from, to, message) {
    if(message == ',checkins') {
      var checkinsUrl = config.checkinsUrl
      console.log('checkins request. url=' + checkinsUrl);

      var options = url.parse(checkinsUrl);
      options.headers = { Accept: 'application/vnd.collection+json' };
      options.method = 'GET';
      var req = http.get(options, function(res) {
        var chunks = '';
        res.on('data', function (chunk) {
          chunks += chunk;
        });
        res.on('end', function () {
          try {
            data = JSON.parse(chunks);
            var checkins = -1;
            var lastCheckin = 'unknown';
            _.each(data['collection'].items, function(item, i) {
              _.each(item.data, function(item, i) {
                switch(item.name) {
                case 'checkins': checkins = parseInt(item.value); break;
                case 'last-checkin': lastCheckin = item.value; break;
                }
              });
            });
            if(checkins != -1) {
              irc.privmsg(to, 'checkins: ' + checkins + ', last checkin: ' + lastCheckin);
            }
            else {
              irc.privmsg(to, 'Could not find any checkins');
            }
          }
          catch(ex) {
            irc.privmsg(to, 'Could not parse document');
          }
        });
      }).on('error', function(e) {
        irc.privmsg(to, 'Problem with request: ' + e.message);
      });
    }
  });
  irc.on('ping', function(from) {
    console.log('ping from ' + from);
    irc.ping(from);
  });
  irc.on('ping-reply', function(from, ms) {
    console.log('ping reply from ' + from + ': ' + ms + ' ms');
  });
  irc.on('errorcode', function(code) {
    if (code == 'ERR_NICKNAMEINUSE') {
      nick = findNick();
      irc.nick(nick);
    }
  });
  irc.connect(nick, 'The useful Bitraf bot', nick);
  process.on('exit', function () {
      irc.quit('bye');
  });
}

module.exports = BitrafBot;