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

function twoDigit(i) {
  if(i > 10) {
    return "" + i;
  }
  return "0" + i;
}

function join(array, f) {
  var memo = undefined;
  _.each(array, function(item) {
    if(memo == undefined) {
      memo = item;
    }
    else {
      memo = f(memo, item);
    }
  });

  return memo;
}

function onCheckinsEnd(chunks) {
  var collection = collection_json.fromString(chunks);
//  console.log('collection.items', collection.items);
  var checkins = -1, lastCheckin;
  collection.mapItemData(function(data) {
    checkins = parseInt(data['checkins']);
    lastCheckin = data['last-checkin'];
  });
  if(checkins != -1) {
    return 'checkins: ' + checkins + ', last checkin: ' + (typeof lastCheckin === 'undefined' ? 'unknown' : lastCheckin);
  }
  else {
    return 'Could not find any checkins';
  }
}
module.exports.onCheckinsEnd = onCheckinsEnd;

function onWhoEnd(chunks) {
  var collection = collection_json.fromString(chunks);
//  console.log('collection.items', collection.items);
  var result = {};
  collection.mapItemData(function(data) {
    if(typeof(result[data['account']]) === 'undefined') {
      var date = Date.ISO(data['date'])
      var d = twoDigit(date.getHours()) + ":" + twoDigit(date.getMinutes());
      result[data['account']] = data['account'] + ' (' + d + ')';
    }
  });
  if(_.size(result) > 0) {
    result = 'Checkins: ' + join(result, function(memo, num) { return memo + ', ' + num });
    console.log('result', result);
    return result;
  }
  else {
    return 'Could not find any checkins';
  }
}
module.exports.onWhoEnd = onWhoEnd;

function BitrafBot(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.notice(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 () {
          var s = onCheckinsEnd(chunks);
          irc.notice(to, s);
        });
      }).on('error', function(e) {
        irc.notice(to, 'Problem with request: ' + e.message);
      });
    }
    else if(message == ',who') {
      var whoUrl = config.whoUrl
      console.log('who request. url=' + whoUrl);

      var options = url.parse(whoUrl);
      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 () {
          var s = onWhoEnd(chunks);
          irc.notice(to, s);
        });
      }).on('error', function(e) {
        irc.notice(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 = BitrafBot;