var channels = ['alca', 'twitchplayspokemon', 'europeanspeedsterassembly', 'sc2starleague', 'IAmSp00n', 'cnotbusch', 'Utorak007', 'WolfsGoRawr'], // Channels to initially join
	fadeDelay = 5000, // Set to false to disable chat fade
	showChannel = true, // Show repespective channels if the channels is longer than 1
	useColor = true, // Use chatters' colors or to inherit
	showBadges = true, // Show chatters' badges
	showEmotes = true, // Show emotes in the chat
	doTimeouts = true, // Hide the messages of people who are timed-out
	doChatClears = true, // Hide the chat from an entire channel
	showHosting = true, // Show when the channel is hosting or not
	showConnectionNotices = true; // Show messages like "Connected" and "Disconnected"





var chat = document.getElementById('chat'),
	defaultColors = ['rgb(255, 0, 0)','rgb(0, 0, 255)','rgb(0, 128, 0)','rgb(178, 34, 34)','rgb(255, 127, 80)','rgb(154, 205, 50)','rgb(255, 69, 0)','rgb(46, 139, 87)','rgb(218, 165, 32)','rgb(210, 105, 30)','rgb(95, 158, 160)','rgb(30, 144, 255)','rgb(255, 105, 180)','rgb(138, 43, 226)','rgb(0, 255, 127)'],
	randomColorsChosen = {},
	clientOptions = {
			options: {
					debug: true
				},
			channels: channels
		},
	client = new irc.client(clientOptions);

function dehash(channel) {
	return channel.replace(/^#/, '');
}

function capitalize(n) {
	return n[0].toUpperCase() +  n.substr(1);
}

function htmlEntities(html) {
	function it() {
		return html.map(function(n, i, arr) {
				if(n.length == 1) {
					return n.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
						   return '&#'+i.charCodeAt(0)+';';
						});
				}
				return n;
			});
	}
	var isArray = Array.isArray(html);
	if(!isArray) {
		html = html.split('');
	}
	html = it(html);
	if(!isArray) html = html.join('');
	return html;
}

function formatEmotes(text, emotes) {
	var splitText = text.split('');
	for(var i in emotes) {
		var e = emotes[i];
		for(var j in e) {
			var mote = e[j];
			if(typeof mote == 'string') {
				mote = mote.split('-');
				mote = [parseInt(mote[0]), parseInt(mote[1])];
				var length =  mote[1] - mote[0],
					empty = Array.apply(null, new Array(length + 1)).map(function() { return '' });
				splitText = splitText.slice(0, mote[0]).concat(empty).concat(splitText.slice(mote[1] + 1, splitText.length));
				splitText.splice(mote[0], 1, '<img class="emoticon" src="http://static-cdn.jtvnw.net/emoticons/v1/' + i + '/3.0">');
			}
		}
	}
	return htmlEntities(splitText).join('')
}

function badges(chan, user, isBot) {
	
	function createBadge(name) {
		var badge = document.createElement('div');
		badge.className = 'chat-badge-' + name;
		return badge;
	}
	
	var chatBadges = document.createElement('span');
	chatBadges.className = 'chat-badges';
	
	if(!isBot) {
		if(user.username == chan) {
			chatBadges.appendChild(createBadge('broadcaster'));
		}
		if(user['user-type']) {
			chatBadges.appendChild(createBadge(user['user-type']));
		}
		if(user.turbo) {
			chatBadges.appendChild(createBadge('turbo'));
		}
	}
	else {
		chatChages.appendChild(createBadge('bot'));
	}
	
	return chatBadges;
}

function handleChat(channel, user, message, self) {
	
	var chan = dehash(channel),
		name = user.username,
		chatLine = document.createElement('div'),
		chatChannel = document.createElement('span'),
		chatName = document.createElement('span'),
		chatColon = document.createElement('span'),
		chatMessage = document.createElement('span');
	
	var color = useColor ? user.color : 'inherit';
	if(color === null) {
		if(!randomColorsChosen.hasOwnProperty(chan)) {
			randomColorsChosen[chan] = {};
		}
		if(randomColorsChosen[chan].hasOwnProperty(name)) {
			color = randomColorsChosen[chan][name];
		}
		else {
			color = defaultColors[Math.floor(Math.random()*defaultColors.length)];
			randomColorsChosen[chan][name] = color;
		}
	}
	
	chatLine.className = 'chat-line';
	chatLine.dataset.username = name;
	chatLine.dataset.channel = channel;
	
	if(user['message-type'] == 'action') {
		chatLine.className += ' chat-action';
	}
	
	chatChannel.className = 'chat-channel';
	chatChannel.innerHTML = chan;
	
	chatName.className = 'chat-name';
	chatName.style.color = color;
	chatName.innerHTML = user['display-name'] || name;
	
	chatColon.className = 'chat-colon';
	
	chatMessage.className = 'chat-message';
	
	chatMessage.style.color = color;
	chatMessage.innerHTML = showEmotes ? formatEmotes(message, user.emotes) : htmlEntities(message);
	
	if(client.opts.channels.length > 1 && showChannel) chatLine.appendChild(chatChannel);
	if(showBadges) chatLine.appendChild(badges(chan, user, self));
	chatLine.appendChild(chatName);
	chatLine.appendChild(chatColon);
	chatLine.appendChild(chatMessage);
	
	chat.appendChild(chatLine);
	
	if(typeof fadeDelay == 'number') {
		setTimeout(function() {
				chatLine.dataset.faded = '';
			}, fadeDelay);
	}
	
	if(chat.children.length > 50) {
		var oldMessages = [].slice.call(chat.children).slice(0, 10);
		for(var i in oldMessages) oldMessages[i].remove();
	}
	
}

function chatNotice(information, noticeFadeDelay, level, additionalClasses) {
	var ele = document.createElement('div');
	
	ele.className = 'chat-line chat-notice';
	ele.innerHTML = information;
	
	if(additionalClasses !== undefined) {
		if(Array.isArray(additionalClasses)) {
			additionalClasses = additionalClasses.join(' ');
		}
		ele.className += ' ' + additionalClasses;
	}
	
	if(typeof level == 'number' && level != 0) {
		ele.dataset.level = level;
	}
	
	chat.appendChild(ele);
	
	if(typeof noticeFadeDelay == 'number') {
		setTimeout(function() {
				ele.dataset.faded = '';
			}, noticeFadeDelay || 500);
	}
	
	return ele;
}

var recentTimeouts = {};

function timeout(channel, username) {
	if(!doTimeouts) return false;
	if(!recentTimeouts.hasOwnProperty(channel)) {
		recentTimeouts[channel] = {};
	}
	if(!recentTimeouts[channel].hasOwnProperty(username) || recentTimeouts[channel][username] + 1000*10 < +new Date) {
		recentTimeouts[channel][username] = +new Date;
		chatNotice(capitalize(username) + ' was timed-out in ' + capitalize(dehash(channel)), 1000, 1, 'chat-delete-timeout')
	};
	var toHide = document.querySelectorAll('.chat-line[data-channel="' + channel + '"][data-username="' + username + '"]:not(.chat-timedout) .chat-message');
	for(var i in toHide) {
		var h = toHide[i];
		if(typeof h == 'object') {
			h.innerText = '<Message deleted>';
			h.parentElement.className += ' chat-timedout';
		}
	}
}
function clearChat(channel) {
	if(!doChatClears) return false;
	var toHide = document.querySelectorAll('.chat-line[data-channel="' + channel + '"]');
	for(var i in toHide) {
		var h = toHide[i];
		if(typeof h == 'object') {
			h.className += ' chat-cleared';
		}
	}
	chatNotice('Chat was cleared in ' + capitalize(dehash(channel)), 1000, 1, 'chat-delete-clear')
}
function hosting(channel, target, viewers, unhost) {
	if(!showHosting) return false;
	if(viewers == '-') viewers = 0;
	var chan = dehash(channel);
	chan = capitalize(chan);
	if(!unhost) {
		var targ = capitalize(target);
		chatNotice(chan + ' is now hosting ' + targ + ' for ' + viewers + ' viewer' + (viewers !== 1 ? 's' : '') + '.', null, null, 'chat-hosting-yes');
	}
	else {
		chatNotice(chan + ' is no longer hosting.', null, null, 'chat-hosting-no');
	}
}

client.addListener('message', handleChat);
client.addListener('timeout', timeout);
client.addListener('clearchat', clearChat);
client.addListener('hosting', hosting);
client.addListener('unhost', function(channel, viewers) { hosting(channel, null, viewers, true) });

client.addListener('connecting', function (address, port) {
		if(showConnectionNotices) chatNotice('Connecting', 1000, -4, 'chat-connection-good-connecting');
	});
client.addListener('logon', function () {
		if(showConnectionNotices) chatNotice('Authenticating', 1000, -3, 'chat-connection-good-logon');
	});
client.addListener('connectfail', function () {
		if(showConnectionNotices) chatNotice('Connection failed', 1000, 3, 'chat-connection-bad-fail');
	});
client.addListener('connected', function (address, port) {
		if(showConnectionNotices) chatNotice('Connected', 1000, -2, 'chat-connection-good-connected');
		joinAccounced = [];
	});
client.addListener('disconnected', function (reason) {
		if(showConnectionNotices) chatNotice('Disconnected: ' + (reason || ''), 3000, 2, 'chat-connection-bad-disconnected');
	});
client.addListener('reconnect', function () {
		if(showConnectionNotices) chatNotice('Reconnected', 1000, 'chat-connection-good-reconnect');
	});
client.addListener('join', function (channel, username) {
		if(username == client.getUsername()) {
			if(showConnectionNotices) chatNotice('Joined ' + capitalize(dehash(channel)), 1000, -1, 'chat-room-join');
			joinAccounced.push(channel);
		}
	});
client.addListener('part', function (channel, username) {
		var index = joinAccounced.indexOf(channel);
		if(index > -1) {
			if(showConnectionNotices) chatNotice('Parted ' + capitalize(dehash(channel)), 1000, -1, 'chat-room-part');
			joinAccounced.splice(joinAccounced.indexOf(channel), 1)
		}
	});

client.addListener('crash', function () {
		chatNotice('Crashed', 10000, 4, 'chat-crash');
	});

client.connect();