const _global = typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : {};
const _WebSocket = _global.WebSocket || require('ws');
const _fetch = _global.fetch || require('node-fetch');
const api = require('./api');
const commands = require('./commands');
const EventEmitter = require('./events').EventEmitter;
const logger = require('./logger');
const parse = require('./parser');
const Queue = require('./timer');
const _ = require('./utils');

let _apiWarned = false;

// Client instance..
const client = function client(opts) {
	if(this instanceof client === false) { return new client(opts); }
	this.opts = _.get(opts, {});
	this.opts.channels = this.opts.channels || [];
	this.opts.connection = this.opts.connection || {};
	this.opts.identity = this.opts.identity || {};
	this.opts.options = this.opts.options || {};

	this.clientId = _.get(this.opts.options.clientId, null);
	this._globalDefaultChannel = _.channel(_.get(this.opts.options.globalDefaultChannel, '#tmijs'));
	this._skipMembership = _.get(this.opts.options.skipMembership, false);
	this._skipUpdatingEmotesets = _.get(this.opts.options.skipUpdatingEmotesets, false);
	this._updateEmotesetsTimer = null;
	this._updateEmotesetsTimerDelay = _.get(this.opts.options.updateEmotesetsTimer, 60000);

	this.maxReconnectAttempts = _.get(this.opts.connection.maxReconnectAttempts, Infinity);
	this.maxReconnectInterval = _.get(this.opts.connection.maxReconnectInterval, 30000);
	this.reconnect = _.get(this.opts.connection.reconnect, true);
	this.reconnectDecay = _.get(this.opts.connection.reconnectDecay, 1.5);
	this.reconnectInterval = _.get(this.opts.connection.reconnectInterval, 1000);

	this.reconnecting = false;
	this.reconnections = 0;
	this.reconnectTimer = this.reconnectInterval;

	this.secure = _.get(
		this.opts.connection.secure,
		!this.opts.connection.server && !this.opts.connection.port
	);

	// Raw data and object for emote-sets..
	this.emotes = '';
	this.emotesets = {};

	this.channels = [];
	this.currentLatency = 0;
	this.globaluserstate = {};
	this.lastJoined = '';
	this.latency = new Date();
	this.moderators = {};
	this.pingLoop = null;
	this.pingTimeout = null;
	this.reason = '';
	this.username = '';
	this.userstate = {};
	this.wasCloseCalled = false;
	this.ws = null;

	// Create the logger..
	let level = 'error';
	if(this.opts.options.debug) { level = 'info'; }
	this.log = this.opts.logger || logger;

	try { logger.setLevel(level); } catch(err) {}

	// Format the channel names..
	this.opts.channels.forEach((part, index, theArray) =>
		theArray[index] = _.channel(part)
	);

	EventEmitter.call(this);
	this.setMaxListeners(0);
};

_.inherits(client, EventEmitter);

// Put all commands in prototype..
for(const methodName in commands) {
	client.prototype[methodName] = commands[methodName];
}

// Emit multiple events..
client.prototype.emits = function emits(types, values) {
	for(let i = 0; i < types.length; i++) {
		const val = i < values.length ? values[i] : values[values.length - 1];
		this.emit.apply(this, [ types[i] ].concat(val));
	}
};
/** @deprecated */
client.prototype.api = function(...args) {
	if(!_apiWarned) {
		this.log.warn('Client.prototype.api is deprecated and will be removed for version 2.0.0');
		_apiWarned = true;
	}
	api(...args);
};
// Handle parsed chat server message..
client.prototype.handleMessage = function handleMessage(message) {
	if(!message) {
		return;
	}

	if(this.listenerCount('raw_message')) {
		this.emit('raw_message', JSON.parse(JSON.stringify(message)), message);
	}

	const channel = _.channel(_.get(message.params[0], null));
	let msg = _.get(message.params[1], null);
	const msgid = _.get(message.tags['msg-id'], null);

	// Parse badges, badge-info and emotes..
	const tags = message.tags = parse.badges(parse.badgeInfo(parse.emotes(message.tags)));

	// Transform IRCv3 tags..
	for(const key in tags) {
		if(key === 'emote-sets' || key === 'ban-duration' || key === 'bits') {
			continue;
		}
		let value = tags[key];
		if(typeof value === 'boolean') { value = null; }
		else if(value === '1') { value = true; }
		else if(value === '0') { value = false; }
		else if(typeof value === 'string') { value = _.unescapeIRC(value); }
		tags[key] = value;
	}

	// Messages with no prefix..
	if(message.prefix === null) {
		switch(message.command) {
			// Received PING from server..
			case 'PING':
				this.emit('ping');
				if(this._isConnected()) {
					this.ws.send('PONG');
				}
				break;

			// Received PONG from server, return current latency..
			case 'PONG': {
				const currDate = new Date();
				this.currentLatency = (currDate.getTime() - this.latency.getTime()) / 1000;
				this.emits([ 'pong', '_promisePing' ], [ [ this.currentLatency ] ]);

				clearTimeout(this.pingTimeout);
				break;
			}

			default:
				this.log.warn(`Could not parse message with no prefix:\n${JSON.stringify(message, null, 4)}`);
				break;
		}
	}


	// Messages with "tmi.twitch.tv" as a prefix..
	else if(message.prefix === 'tmi.twitch.tv') {
		switch(message.command) {
			case '002':
			case '003':
			case '004':
			case '372':
			case '375':
			case 'CAP':
				break;

			// Retrieve username from server..
			case '001':
				this.username = message.params[0];
				break;

			// Connected to server..
			case '376': {
				this.log.info('Connected to server.');
				this.userstate[this._globalDefaultChannel] = {};
				this.emits([ 'connected', '_promiseConnect' ], [ [ this.server, this.port ], [ null ] ]);
				this.reconnections = 0;
				this.reconnectTimer = this.reconnectInterval;

				// Set an internal ping timeout check interval..
				this.pingLoop = setInterval(() => {
					// Make sure the connection is opened before sending the message..
					if(this._isConnected()) {
						this.ws.send('PING');
					}
					this.latency = new Date();
					this.pingTimeout = setTimeout(() => {
						if(this.ws !== null) {
							this.wasCloseCalled = false;
							this.log.error('Ping timeout.');
							this.ws.close();

							clearInterval(this.pingLoop);
							clearTimeout(this.pingTimeout);
							clearTimeout(this._updateEmotesetsTimer);
						}
					}, _.get(this.opts.connection.timeout, 9999));
				}, 60000);

				// Join all the channels from the config with an interval..
				let joinInterval = _.get(this.opts.options.joinInterval, 2000);
				if(joinInterval < 300) {
					joinInterval = 300;
				}
				const joinQueue = new Queue(joinInterval);
				const joinChannels = _.union(this.opts.channels, this.channels);
				this.channels = [];

				for(let i = 0; i < joinChannels.length; i++) {
					const channel = joinChannels[i];
					joinQueue.add(() => {
						if(this._isConnected()) {
							this.join(channel).catch(err => this.log.error(err));
						}
					});
				}

				joinQueue.next();
				break;
			}

			// https://github.com/justintv/Twitch-API/blob/master/chat/capabilities.md#notice
			case 'NOTICE': {
				const nullArr = [ null ];
				const noticeArr = [ channel, msgid, msg ];
				const msgidArr = [ msgid ];
				const channelTrueArr = [ channel, true ];
				const channelFalseArr = [ channel, false ];
				const noticeAndNull = [ noticeArr, nullArr ];
				const noticeAndMsgid = [ noticeArr, msgidArr ];
				const basicLog = `[${channel}] ${msg}`;
				switch(msgid) {
					// This room is now in subscribers-only mode.
					case 'subs_on':
						this.log.info(`[${channel}] This room is now in subscribers-only mode.`);
						this.emits([ 'subscriber', 'subscribers', '_promiseSubscribers' ], [ channelTrueArr, channelTrueArr, nullArr ]);
						break;

					// This room is no longer in subscribers-only mode.
					case 'subs_off':
						this.log.info(`[${channel}] This room is no longer in subscribers-only mode.`);
						this.emits([ 'subscriber', 'subscribers', '_promiseSubscribersoff' ], [ channelFalseArr, channelFalseArr, nullArr ]);
						break;

					// This room is now in emote-only mode.
					case 'emote_only_on':
						this.log.info(`[${channel}] This room is now in emote-only mode.`);
						this.emits([ 'emoteonly', '_promiseEmoteonly' ], [ channelTrueArr, nullArr ]);
						break;

					// This room is no longer in emote-only mode.
					case 'emote_only_off':
						this.log.info(`[${channel}] This room is no longer in emote-only mode.`);
						this.emits([ 'emoteonly', '_promiseEmoteonlyoff' ], [ channelFalseArr, nullArr ]);
						break;

					// Do not handle slow_on/off here, listen to the ROOMSTATE notice instead as it returns the delay.
					case 'slow_on':
					case 'slow_off':
						break;

					// Do not handle followers_on/off here, listen to the ROOMSTATE notice instead as it returns the delay.
					case 'followers_on_zero':
					case 'followers_on':
					case 'followers_off':
						break;

					// This room is now in r9k mode.
					case 'r9k_on':
						this.log.info(`[${channel}] This room is now in r9k mode.`);
						this.emits([ 'r9kmode', 'r9kbeta', '_promiseR9kbeta' ], [ channelTrueArr, channelTrueArr, nullArr ]);
						break;

					// This room is no longer in r9k mode.
					case 'r9k_off':
						this.log.info(`[${channel}] This room is no longer in r9k mode.`);
						this.emits([ 'r9kmode', 'r9kbeta', '_promiseR9kbetaoff' ], [ channelFalseArr, channelFalseArr, nullArr ]);
						break;

					// The moderators of this room are: [..., ...]
					case 'room_mods': {
						const mods = msg.split(': ')[1].toLowerCase()
						.split(', ')
						.filter(n => n);

						this.emits([ '_promiseMods', 'mods' ], [ [ null, mods ], [ channel, mods ] ]);
						break;
					}

					// There are no moderators for this room.
					case 'no_mods':
						this.emits([ '_promiseMods', 'mods' ], [ [ null, [] ], [ channel, [] ] ]);
						break;

					// The VIPs of this channel are: [..., ...]
					case 'vips_success': {
						if(msg.endsWith('.')) {
							msg = msg.slice(0, -1);
						}
						const vips = msg.split(': ')[1].toLowerCase()
						.split(', ')
						.filter(n => n);

						this.emits([ '_promiseVips', 'vips' ], [ [ null, vips ], [ channel, vips ] ]);
						break;
					}

					// There are no VIPs for this room.
					case 'no_vips':
						this.emits([ '_promiseVips', 'vips' ], [ [ null, [] ], [ channel, [] ] ]);
						break;

					// Ban command failed..
					case 'already_banned':
					case 'bad_ban_admin':
					case 'bad_ban_broadcaster':
					case 'bad_ban_global_mod':
					case 'bad_ban_self':
					case 'bad_ban_staff':
					case 'usage_ban':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseBan' ], noticeAndMsgid);
						break;

					// Ban command success..
					case 'ban_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseBan' ], noticeAndNull);
						break;

					// Clear command failed..
					case 'usage_clear':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseClear' ], noticeAndMsgid);
						break;

					// Mods command failed..
					case 'usage_mods':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseMods' ], [ noticeArr, [ msgid, [] ] ]);
						break;

					// Mod command success..
					case 'mod_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseMod' ], noticeAndNull);
						break;

					// VIPs command failed..
					case 'usage_vips':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseVips' ], [ noticeArr, [ msgid, [] ] ]);
						break;

					// VIP command failed..
					case 'usage_vip':
					case 'bad_vip_grantee_banned':
					case 'bad_vip_grantee_already_vip':
					case 'bad_vip_max_vips_reached':
					case 'bad_vip_achievement_incomplete':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseVip' ], [ noticeArr, [ msgid, [] ] ]);
						break;

					// VIP command success..
					case 'vip_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseVip' ], noticeAndNull);
						break;

					// Mod command failed..
					case 'usage_mod':
					case 'bad_mod_banned':
					case 'bad_mod_mod':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseMod' ], noticeAndMsgid);
						break;

					// Unmod command success..
					case 'unmod_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnmod' ], noticeAndNull);
						break;

					// Unvip command success...
					case 'unvip_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnvip' ], noticeAndNull);
						break;

					// Unmod command failed..
					case 'usage_unmod':
					case 'bad_unmod_mod':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnmod' ], noticeAndMsgid);
						break;

					// Unvip command failed..
					case 'usage_unvip':
					case 'bad_unvip_grantee_not_vip':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnvip' ], noticeAndMsgid);
						break;

					// Color command success..
					case 'color_changed':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseColor' ], noticeAndNull);
						break;

					// Color command failed..
					case 'usage_color':
					case 'turbo_only_color':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseColor' ], noticeAndMsgid);
						break;

					// Commercial command success..
					case 'commercial_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseCommercial' ], noticeAndNull);
						break;

					// Commercial command failed..
					case 'usage_commercial':
					case 'bad_commercial_error':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseCommercial' ], noticeAndMsgid);
						break;

					// Host command success..
					case 'hosts_remaining': {
						this.log.info(basicLog);
						const remainingHost = (!isNaN(msg[0]) ? parseInt(msg[0]) : 0);
						this.emits([ 'notice', '_promiseHost' ], [ noticeArr, [ null, ~~remainingHost ] ]);
						break;
					}

					// Host command failed..
					case 'bad_host_hosting':
					case 'bad_host_rate_exceeded':
					case 'bad_host_error':
					case 'usage_host':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseHost' ], [ noticeArr, [ msgid, null ] ]);
						break;

					// r9kbeta command failed..
					case 'already_r9k_on':
					case 'usage_r9k_on':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseR9kbeta' ], noticeAndMsgid);
						break;

					// r9kbetaoff command failed..
					case 'already_r9k_off':
					case 'usage_r9k_off':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseR9kbetaoff' ], noticeAndMsgid);
						break;

					// Timeout command success..
					case 'timeout_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseTimeout' ], noticeAndNull);
						break;

					case 'delete_message_success':
						this.log.info(`[${channel} ${msg}]`);
						this.emits([ 'notice', '_promiseDeletemessage' ], noticeAndNull);
						break;

					// Subscribersoff command failed..
					case 'already_subs_off':
					case 'usage_subs_off':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseSubscribersoff' ], noticeAndMsgid);
						break;

					// Subscribers command failed..
					case 'already_subs_on':
					case 'usage_subs_on':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseSubscribers' ], noticeAndMsgid);
						break;

					// Emoteonlyoff command failed..
					case 'already_emote_only_off':
					case 'usage_emote_only_off':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseEmoteonlyoff' ], noticeAndMsgid);
						break;

					// Emoteonly command failed..
					case 'already_emote_only_on':
					case 'usage_emote_only_on':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseEmoteonly' ], noticeAndMsgid);
						break;

					// Slow command failed..
					case 'usage_slow_on':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseSlow' ], noticeAndMsgid);
						break;

					// Slowoff command failed..
					case 'usage_slow_off':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseSlowoff' ], noticeAndMsgid);
						break;

					// Timeout command failed..
					case 'usage_timeout':
					case 'bad_timeout_admin':
					case 'bad_timeout_broadcaster':
					case 'bad_timeout_duration':
					case 'bad_timeout_global_mod':
					case 'bad_timeout_self':
					case 'bad_timeout_staff':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseTimeout' ], noticeAndMsgid);
						break;

					// Unban command success..
					// Unban can also be used to cancel an active timeout.
					case 'untimeout_success':
					case 'unban_success':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnban' ], noticeAndNull);
						break;

					// Unban command failed..
					case 'usage_unban':
					case 'bad_unban_no_ban':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnban' ], noticeAndMsgid);
						break;

					// Delete command failed..
					case 'usage_delete':
					case 'bad_delete_message_error':
					case 'bad_delete_message_broadcaster':
					case 'bad_delete_message_mod':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseDeletemessage' ], noticeAndMsgid);
						break;

					// Unhost command failed..
					case 'usage_unhost':
					case 'not_hosting':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseUnhost' ], noticeAndMsgid);
						break;

					// Whisper command failed..
					case 'whisper_invalid_login':
					case 'whisper_invalid_self':
					case 'whisper_limit_per_min':
					case 'whisper_limit_per_sec':
					case 'whisper_restricted':
					case 'whisper_restricted_recipient':
						this.log.info(basicLog);
						this.emits([ 'notice', '_promiseWhisper' ], noticeAndMsgid);
						break;

					// Permission error..
					case 'no_permission':
					case 'msg_banned':
					case 'msg_room_not_found':
					case 'msg_channel_suspended':
					case 'tos_ban':
					case 'invalid_user':
						this.log.info(basicLog);
						this.emits([
							'notice',
							'_promiseBan',
							'_promiseClear',
							'_promiseUnban',
							'_promiseTimeout',
							'_promiseDeletemessage',
							'_promiseMods',
							'_promiseMod',
							'_promiseUnmod',
							'_promiseVips',
							'_promiseVip',
							'_promiseUnvip',
							'_promiseCommercial',
							'_promiseHost',
							'_promiseUnhost',
							'_promiseJoin',
							'_promisePart',
							'_promiseR9kbeta',
							'_promiseR9kbetaoff',
							'_promiseSlow',
							'_promiseSlowoff',
							'_promiseFollowers',
							'_promiseFollowersoff',
							'_promiseSubscribers',
							'_promiseSubscribersoff',
							'_promiseEmoteonly',
							'_promiseEmoteonlyoff',
							'_promiseWhisper'
						], [ noticeArr, [ msgid, channel ] ]);
						break;

					// Automod-related..
					case 'msg_rejected':
					case 'msg_rejected_mandatory':
						this.log.info(basicLog);
						this.emit('automod', channel, msgid, msg);
						break;

					// Unrecognized command..
					case 'unrecognized_cmd':
						this.log.info(basicLog);
						this.emit('notice', channel, msgid, msg);
						break;

					// Send the following msg-ids to the notice event listener..
					case 'cmds_available':
					case 'host_target_went_offline':
					case 'msg_censored_broadcaster':
					case 'msg_duplicate':
					case 'msg_emoteonly':
					case 'msg_verified_email':
					case 'msg_ratelimit':
					case 'msg_subsonly':
					case 'msg_timedout':
					case 'msg_bad_characters':
					case 'msg_channel_blocked':
					case 'msg_facebook':
					case 'msg_followersonly':
					case 'msg_followersonly_followed':
					case 'msg_followersonly_zero':
					case 'msg_slowmode':
					case 'msg_suspended':
					case 'no_help':
					case 'usage_disconnect':
					case 'usage_help':
					case 'usage_me':
					case 'unavailable_command':
						this.log.info(basicLog);
						this.emit('notice', channel, msgid, msg);
						break;

					// Ignore this because we are already listening to HOSTTARGET..
					case 'host_on':
					case 'host_off':
						break;

					default:
						if(msg.includes('Login unsuccessful') || msg.includes('Login authentication failed')) {
							this.wasCloseCalled = false;
							this.reconnect = false;
							this.reason = msg;
							this.log.error(this.reason);
							this.ws.close();
						}
						else if(msg.includes('Error logging in') || msg.includes('Improperly formatted auth')) {
							this.wasCloseCalled = false;
							this.reconnect = false;
							this.reason = msg;
							this.log.error(this.reason);
							this.ws.close();
						}
						else if(msg.includes('Invalid NICK')) {
							this.wasCloseCalled = false;
							this.reconnect = false;
							this.reason = 'Invalid NICK.';
							this.log.error(this.reason);
							this.ws.close();
						}
						else {
							this.log.warn(`Could not parse NOTICE from tmi.twitch.tv:\n${JSON.stringify(message, null, 4)}`);
							this.emit('notice', channel, msgid, msg);
						}
						break;
				}
				break;
			}

			// Handle subanniversary / resub..
			case 'USERNOTICE': {
				const username = tags['display-name'] || tags['login'];
				const plan = tags['msg-param-sub-plan'] || '';
				const planName = _.unescapeIRC(_.get(tags['msg-param-sub-plan-name'], '')) || null;
				const prime = plan.includes('Prime');
				const methods = { prime, plan, planName };
				const streakMonths = ~~(tags['msg-param-streak-months'] || 0);
				const recipient = tags['msg-param-recipient-display-name'] || tags['msg-param-recipient-user-name'];
				const giftSubCount = ~~tags['msg-param-mass-gift-count'];
				tags['message-type'] = msgid;

				switch(msgid) {
					// Handle resub
					case 'resub':
						this.emits([ 'resub', 'subanniversary' ], [
							[ channel, username, streakMonths, msg, tags, methods ]
						]);
						break;

					// Handle sub
					case 'sub':
						this.emits([ 'subscription', 'sub' ], [
							[ channel, username, methods, msg, tags ]
						]);
						break;

					// Handle gift sub
					case 'subgift':
						this.emit('subgift', channel, username, streakMonths, recipient, methods, tags);
						break;

					// Handle anonymous gift sub
					// Need proof that this event occur
					case 'anonsubgift':
						this.emit('anonsubgift', channel, streakMonths, recipient, methods, tags);
						break;

					// Handle random gift subs
					case 'submysterygift':
						this.emit('submysterygift', channel, username, giftSubCount, methods, tags);
						break;

					// Handle anonymous random gift subs
					// Need proof that this event occur
					case 'anonsubmysterygift':
						this.emit('anonsubmysterygift', channel, giftSubCount, methods, tags);
						break;

					// Handle user upgrading from Prime to a normal tier sub
					case 'primepaidupgrade':
						this.emit('primepaidupgrade', channel, username, methods, tags);
						break;

					// Handle user upgrading from a gifted sub
					case 'giftpaidupgrade': {
						const sender = tags['msg-param-sender-name'] || tags['msg-param-sender-login'];
						this.emit('giftpaidupgrade', channel, username, sender, tags);
						break;
					}

					// Handle user upgrading from an anonymous gifted sub
					case 'anongiftpaidupgrade':
						this.emit('anongiftpaidupgrade', channel, username, tags);
						break;

					// Handle raid
					case 'raid': {
						const username = tags['msg-param-displayName'] || tags['msg-param-login'];
						const viewers = +tags['msg-param-viewerCount'];
						this.emit('raided', channel, username, viewers, tags);
						break;
					}
					// Handle ritual
					case 'ritual': {
						const ritualName = tags['msg-param-ritual-name'];
						switch(ritualName) {
							// Handle new chatter ritual
							case 'new_chatter':
								this.emit('newchatter', channel, username, tags, msg);
								break;
							// All unknown rituals should be passed through
							default:
								this.emit('ritual', ritualName, channel, username, tags, msg);
								break;
						}
						break;
					}
					// All other msgid events should be emitted under a usernotice event
					// until it comes up and needs to be added..
					default:
						this.emit('usernotice', msgid, channel, tags, msg);
						break;
				}
				break;
			}

			// Channel is now hosting another channel or exited host mode..
			case 'HOSTTARGET': {
				const msgSplit = msg.split(' ');
				const viewers = ~~msgSplit[1] || 0;
				// Stopped hosting..
				if(msgSplit[0] === '-') {
					this.log.info(`[${channel}] Exited host mode.`);
					this.emits([ 'unhost', '_promiseUnhost' ], [ [ channel, viewers ], [ null ] ]);
				}

				// Now hosting..
				else {
					this.log.info(`[${channel}] Now hosting ${msgSplit[0]} for ${viewers} viewer(s).`);
					this.emit('hosting', channel, msgSplit[0], viewers);
				}
				break;
			}

			// Someone has been timed out or chat has been cleared by a moderator..
			case 'CLEARCHAT':
				// User has been banned / timed out by a moderator..
				if(message.params.length > 1) {
					// Duration returns null if it's a ban, otherwise it's a timeout..
					const duration = _.get(message.tags['ban-duration'], null);

					if(duration === null) {
						this.log.info(`[${channel}] ${msg} has been banned.`);
						this.emit('ban', channel, msg, null, message.tags);
					}
					else {
						this.log.info(`[${channel}] ${msg} has been timed out for ${duration} seconds.`);
						this.emit('timeout', channel, msg, null, ~~duration, message.tags);
					}
				}

				// Chat was cleared by a moderator..
				else {
					this.log.info(`[${channel}] Chat was cleared by a moderator.`);
					this.emits([ 'clearchat', '_promiseClear' ], [ [ channel ], [ null ] ]);
				}
				break;

			// Someone's message has been deleted
			case 'CLEARMSG':
				if(message.params.length > 1) {
					const deletedMessage = msg;
					const username = tags['login'];
					tags['message-type'] = 'messagedeleted';

					this.log.info(`[${channel}] ${username}'s message has been deleted.`);
					this.emit('messagedeleted', channel, username, deletedMessage, tags);
				}
				break;

			// Received a reconnection request from the server..
			case 'RECONNECT':
				this.log.info('Received RECONNECT request from Twitch..');
				this.log.info(`Disconnecting and reconnecting in ${Math.round(this.reconnectTimer / 1000)} seconds..`);
				this.disconnect().catch(err => this.log.error(err));
				setTimeout(() => this.connect().catch(err => this.log.error(err)), this.reconnectTimer);
				break;

			// Received when joining a channel and every time you send a PRIVMSG to a channel.
			case 'USERSTATE':
				message.tags.username = this.username;

				// Add the client to the moderators of this room..
				if(message.tags['user-type'] === 'mod') {
					if(!this.moderators[channel]) {
						this.moderators[channel] = [];
					}
					if(!this.moderators[channel].includes(this.username)) {
						this.moderators[channel].push(this.username);
					}
				}

				// Logged in and username doesn't start with justinfan..
				if(!_.isJustinfan(this.getUsername()) && !this.userstate[channel]) {
					this.userstate[channel] = tags;
					this.lastJoined = channel;
					this.channels.push(channel);
					this.log.info(`Joined ${channel}`);
					this.emit('join', channel, _.username(this.getUsername()), true);
				}

				// Emote-sets has changed, update it..
				if(message.tags['emote-sets'] !== this.emotes) {
					this._updateEmoteset(message.tags['emote-sets']);
				}

				this.userstate[channel] = tags;
				break;

			// Describe non-channel-specific state informations..
			case 'GLOBALUSERSTATE':
				this.globaluserstate = tags;
				this.emit('globaluserstate', tags);

				// Received emote-sets..
				if(typeof message.tags['emote-sets'] !== 'undefined') {
					this._updateEmoteset(message.tags['emote-sets']);
				}
				break;

			// Received when joining a channel and every time one of the chat room settings, like slow mode, change.
			// The message on join contains all room settings.
			case 'ROOMSTATE':
				// We use this notice to know if we successfully joined a channel..
				if(_.channel(this.lastJoined) === channel) { this.emit('_promiseJoin', null, channel); }

				// Provide the channel name in the tags before emitting it..
				message.tags.channel = channel;
				this.emit('roomstate', channel, message.tags);

				if(!_.hasOwn(message.tags, 'subs-only')) {
					// Handle slow mode here instead of the slow_on/off notice..
					// This room is now in slow mode. You may send messages every slow_duration seconds.
					if(_.hasOwn(message.tags, 'slow')) {
						if(typeof message.tags.slow === 'boolean' && !message.tags.slow) {
							const disabled = [ channel, false, 0 ];
							this.log.info(`[${channel}] This room is no longer in slow mode.`);
							this.emits([ 'slow', 'slowmode', '_promiseSlowoff' ], [ disabled, disabled, [ null ] ]);
						}
						else {
							const seconds = ~~message.tags.slow;
							const enabled = [ channel, true, seconds ];
							this.log.info(`[${channel}] This room is now in slow mode.`);
							this.emits([ 'slow', 'slowmode', '_promiseSlow' ], [ enabled, enabled, [ null ] ]);
						}
					}

					// Handle followers only mode here instead of the followers_on/off notice..
					// This room is now in follower-only mode.
					// This room is now in <duration> followers-only mode.
					// This room is no longer in followers-only mode.
					// duration is in minutes (string)
					// -1 when /followersoff (string)
					// false when /followers with no duration (boolean)
					if(_.hasOwn(message.tags, 'followers-only')) {
						if(message.tags['followers-only'] === '-1') {
							const disabled = [ channel, false, 0 ];
							this.log.info(`[${channel}] This room is no longer in followers-only mode.`);
							this.emits([ 'followersonly', 'followersmode', '_promiseFollowersoff' ], [ disabled, disabled, [ null ] ]);
						}
						else {
							const minutes = ~~message.tags['followers-only'];
							const enabled = [ channel, true, minutes ];
							this.log.info(`[${channel}] This room is now in follower-only mode.`);
							this.emits([ 'followersonly', 'followersmode', '_promiseFollowers' ], [ enabled, enabled, [ null ] ]);
						}
					}
				}
				break;

			// Wrong cluster..
			case 'SERVERCHANGE':
				break;

			default:
				this.log.warn(`Could not parse message from tmi.twitch.tv:\n${JSON.stringify(message, null, 4)}`);
				break;
		}
	}


	// Messages from jtv..
	else if(message.prefix === 'jtv') {
		switch(message.command) {
			case 'MODE':
				if(msg === '+o') {
					// Add username to the moderators..
					if(!this.moderators[channel]) {
						this.moderators[channel] = [];
					}
					if(!this.moderators[channel].includes(message.params[2])) {
						this.moderators[channel].push(message.params[2]);
					}

					this.emit('mod', channel, message.params[2]);
				}
				else if(msg === '-o') {
					// Remove username from the moderators..
					if(!this.moderators[channel]) {
						this.moderators[channel] = [];
					}
					this.moderators[channel].filter(value => value !== message.params[2]);

					this.emit('unmod', channel, message.params[2]);
				}
				break;

			default:
				this.log.warn(`Could not parse message from jtv:\n${JSON.stringify(message, null, 4)}`);
				break;
		}
	}


	// Anything else..
	else {
		switch(message.command) {
			case '353':
				this.emit('names', message.params[2], message.params[3].split(' '));
				break;

			case '366':
				break;

			// Someone has joined the channel..
			case 'JOIN': {
				const nick = message.prefix.split('!')[0];
				// Joined a channel as a justinfan (anonymous) user..
				if(_.isJustinfan(this.getUsername()) && this.username === nick) {
					this.lastJoined = channel;
					this.channels.push(channel);
					this.log.info(`Joined ${channel}`);
					this.emit('join', channel, nick, true);
				}

				// Someone else joined the channel, just emit the join event..
				if(this.username !== nick) {
					this.emit('join', channel, nick, false);
				}
				break;
			}

			// Someone has left the channel..
			case 'PART': {
				let isSelf = false;
				const nick = message.prefix.split('!')[0];
				// Client left a channel..
				if(this.username === nick) {
					isSelf = true;
					if(this.userstate[channel]) { delete this.userstate[channel]; }

					let index = this.channels.indexOf(channel);
					if(index !== -1) { this.channels.splice(index, 1); }

					index = this.opts.channels.indexOf(channel);
					if(index !== -1) { this.opts.channels.splice(index, 1); }

					this.log.info(`Left ${channel}`);
					this.emit('_promisePart', null);
				}

				// Client or someone else left the channel, emit the part event..
				this.emit('part', channel, nick, isSelf);
				break;
			}

			// Received a whisper..
			case 'WHISPER': {
				const nick = message.prefix.split('!')[0];
				this.log.info(`[WHISPER] <${nick}>: ${msg}`);

				// Update the tags to provide the username..
				if(!_.hasOwn(message.tags, 'username')) {
					message.tags.username = nick;
				}
				message.tags['message-type'] = 'whisper';

				const from = _.channel(message.tags.username);
				// Emit for both, whisper and message..
				this.emits([ 'whisper', 'message' ], [
					[ from, message.tags, msg, false ]
				]);
				break;
			}

			case 'PRIVMSG':
				// Add username (lowercase) to the tags..
				message.tags.username = message.prefix.split('!')[0];

				// Message from JTV..
				if(message.tags.username === 'jtv') {
					const name = _.username(msg.split(' ')[0]);
					const autohost = msg.includes('auto');
					// Someone is hosting the channel and the message contains how many viewers..
					if(msg.includes('hosting you for')) {
						const count = _.extractNumber(msg);

						this.emit('hosted', channel, name, count, autohost);
					}


					// Some is hosting the channel, but no viewer(s) count provided in the message..
					else if(msg.includes('hosting you')) {
						this.emit('hosted', channel, name, 0, autohost);
					}
				}

				else {
					const messagesLogLevel = _.get(this.opts.options.messagesLogLevel, 'info');

					// Message is an action (/me <message>)..
					const actionMessage = _.actionMessage(msg);
					message.tags['message-type'] = actionMessage ? 'action' : 'chat';
					msg = actionMessage ? actionMessage[1] : msg;
					// Check for Bits prior to actions message
					if(_.hasOwn(message.tags, 'bits')) {
						this.emit('cheer', channel, message.tags, msg);
					}
					else {
						//Handle Channel Point Redemptions (Require's Text Input)
						if(_.hasOwn(message.tags, 'msg-id')) {
							if(message.tags['msg-id'] === 'highlighted-message') {
								const rewardtype = message.tags['msg-id'];
								this.emit('redeem', channel, message.tags.username, rewardtype, message.tags, msg);
							}
							else if(message.tags['msg-id'] === 'skip-subs-mode-message') {
								const rewardtype = message.tags['msg-id'];
								this.emit('redeem', channel, message.tags.username, rewardtype, message.tags, msg);
							}
						}
						else if(_.hasOwn(message.tags, 'custom-reward-id')) {
							const rewardtype = message.tags['custom-reward-id'];
							this.emit('redeem', channel, message.tags.username, rewardtype, message.tags, msg);
						}
						if(actionMessage) {
							this.log[messagesLogLevel](`[${channel}] *<${message.tags.username}>: ${msg}`);
							this.emits([ 'action', 'message' ], [
								[ channel, message.tags, msg, false ]
							]);
						}

						// Message is a regular chat message..
						else {
							this.log[messagesLogLevel](`[${channel}] <${message.tags.username}>: ${msg}`);
							this.emits([ 'chat', 'message' ], [
								[ channel, message.tags, msg, false ]
							]);
						}
					}
				}
				break;

			default:
				this.log.warn(`Could not parse message:\n${JSON.stringify(message, null, 4)}`);
				break;
		}
	}
};
// Connect to server..
client.prototype.connect = function connect() {
	return new Promise((resolve, reject) => {
		this.server = _.get(this.opts.connection.server, 'irc-ws.chat.twitch.tv');
		this.port = _.get(this.opts.connection.port, 80);

		// Override port if using a secure connection..
		if(this.secure) { this.port = 443; }
		if(this.port === 443) { this.secure = true; }

		this.reconnectTimer = this.reconnectTimer * this.reconnectDecay;
		if(this.reconnectTimer >= this.maxReconnectInterval) {
			this.reconnectTimer = this.maxReconnectInterval;
		}

		// Connect to server from configuration..
		this._openConnection();
		this.once('_promiseConnect', err => {
			if(!err) { resolve([ this.server, ~~this.port ]); }
			else { reject(err); }
		});
	});
};
// Open a connection..
client.prototype._openConnection = function _openConnection() {
	this.ws = new _WebSocket(`${this.secure ? 'wss' : 'ws'}://${this.server}:${this.port}/`, 'irc');

	this.ws.onmessage = this._onMessage.bind(this);
	this.ws.onerror = this._onError.bind(this);
	this.ws.onclose = this._onClose.bind(this);
	this.ws.onopen = this._onOpen.bind(this);
};
// Called when the WebSocket connection's readyState changes to OPEN.
// Indicates that the connection is ready to send and receive data..
client.prototype._onOpen = function _onOpen() {
	if(!this._isConnected()) {
		return;
	}

	// Emitting "connecting" event..
	this.log.info(`Connecting to ${this.server} on port ${this.port}..`);
	this.emit('connecting', this.server, ~~this.port);

	this.username = _.get(this.opts.identity.username, _.justinfan());
	this._getToken()
	.then(token => {
		const password = _.password(token);

		// Emitting "logon" event..
		this.log.info('Sending authentication to server..');
		this.emit('logon');

		let caps = 'twitch.tv/tags twitch.tv/commands';
		if(!this._skipMembership) {
			caps += ' twitch.tv/membership';
		}
		this.ws.send('CAP REQ :' + caps);

		// Authentication..
		if(password) {
			this.ws.send(`PASS ${password}`);
		}
		else if(_.isJustinfan(this.username)) {
			this.ws.send('PASS SCHMOOPIIE');
		}
		this.ws.send(`NICK ${this.username}`);
	})
	.catch(err => {
		this.emits([ '_promiseConnect', 'disconnected' ], [ [ err ], [ 'Could not get a token.' ] ]);
	});
};
// Fetches a token from the option.
client.prototype._getToken = function _getToken() {
	const passwordOption = this.opts.identity.password;
	let password;
	if(typeof passwordOption === 'function') {
		password = passwordOption();
		if(password instanceof Promise) {
			return password;
		}
		return Promise.resolve(password);
	}
	return Promise.resolve(passwordOption);
};
// Called when a message is received from the server..
client.prototype._onMessage = function _onMessage(event) {
	const parts = event.data.trim().split('\r\n');

	parts.forEach(str => {
		const msg = parse.msg(str);
		if(msg) {
			this.handleMessage(msg);
		}
	});
};
// Called when an error occurs..
client.prototype._onError = function _onError() {
	this.moderators = {};
	this.userstate = {};
	this.globaluserstate = {};

	// Stop the internal ping timeout check interval..
	clearInterval(this.pingLoop);
	clearTimeout(this.pingTimeout);
	clearTimeout(this._updateEmotesetsTimer);

	this.reason = this.ws === null ? 'Connection closed.' : 'Unable to connect.';

	this.emits([ '_promiseConnect', 'disconnected' ], [ [ this.reason ] ]);

	// Reconnect to server..
	if(this.reconnect && this.reconnections === this.maxReconnectAttempts) {
		this.emit('maxreconnect');
		this.log.error('Maximum reconnection attempts reached.');
	}
	if(this.reconnect && !this.reconnecting && this.reconnections <= this.maxReconnectAttempts - 1) {
		this.reconnecting = true;
		this.reconnections = this.reconnections + 1;
		this.log.error(`Reconnecting in ${Math.round(this.reconnectTimer / 1000)} seconds..`);
		this.emit('reconnect');
		setTimeout(() => {
			this.reconnecting = false;
			this.connect().catch(err => this.log.error(err));
		}, this.reconnectTimer);
	}

	this.ws = null;
};
// Called when the WebSocket connection's readyState changes to CLOSED..
client.prototype._onClose = function _onClose() {
	this.moderators = {};
	this.userstate = {};
	this.globaluserstate = {};

	// Stop the internal ping timeout check interval..
	clearInterval(this.pingLoop);
	clearTimeout(this.pingTimeout);
	clearTimeout(this._updateEmotesetsTimer);

	// User called .disconnect(), don't try to reconnect.
	if(this.wasCloseCalled) {
		this.wasCloseCalled = false;
		this.reason = 'Connection closed.';
		this.log.info(this.reason);
		this.emits([ '_promiseConnect', '_promiseDisconnect', 'disconnected' ], [ [ this.reason ], [ null ], [ this.reason ] ]);
	}

	// Got disconnected from server..
	else {
		this.emits([ '_promiseConnect', 'disconnected' ], [ [ this.reason ] ]);

		// Reconnect to server..
		if(this.reconnect && this.reconnections === this.maxReconnectAttempts) {
			this.emit('maxreconnect');
			this.log.error('Maximum reconnection attempts reached.');
		}
		if(this.reconnect && !this.reconnecting && this.reconnections <= this.maxReconnectAttempts - 1) {
			this.reconnecting = true;
			this.reconnections = this.reconnections + 1;
			this.log.error(`Could not connect to server. Reconnecting in ${Math.round(this.reconnectTimer / 1000)} seconds..`);
			this.emit('reconnect');
			setTimeout(() => {
				this.reconnecting = false;
				this.connect().catch(err => this.log.error(err));
			}, this.reconnectTimer);
		}
	}

	this.ws = null;
};
// Minimum of 600ms for command promises, if current latency exceeds, add 100ms to it to make sure it doesn't get timed out..
client.prototype._getPromiseDelay = function _getPromiseDelay() {
	if(this.currentLatency <= 600) { return 600; }
	else { return this.currentLatency + 100; }
};
// Send command to server or channel..
client.prototype._sendCommand = function _sendCommand(delay, channel, command, fn) {
	// Race promise against delay..
	return new Promise((resolve, reject) => {
		// Make sure the socket is opened..
		if(!this._isConnected()) {
			// Disconnected from server..
			return reject('Not connected to server.');
		}
		else if(typeof delay === 'number') {
			_.promiseDelay(delay).then(() => reject('No response from Twitch.'));
		}

		// Executing a command on a channel..
		if(channel !== null) {
			const chan = _.channel(channel);
			this.log.info(`[${chan}] Executing command: ${command}`);
			this.ws.send(`PRIVMSG ${chan} :${command}`);
		}


		// Executing a raw command..
		else {
			this.log.info(`Executing command: ${command}`);
			this.ws.send(command);
		}
		if(typeof fn === 'function') {
			fn(resolve, reject);
		}
		else {
			resolve();
		}
	});
};
// Send a message to channel..
client.prototype._sendMessage = function _sendMessage(delay, channel, message, fn) {
	// Promise a result..
	return new Promise((resolve, reject) => {
		// Make sure the socket is opened and not logged in as a justinfan user..
		if(!this._isConnected()) {
			return reject('Not connected to server.');
		}
		else if(_.isJustinfan(this.getUsername())) {
			return reject('Cannot send anonymous messages.');
		}
		const chan = _.channel(channel);
		if(!this.userstate[chan]) { this.userstate[chan] = {}; }

		// Split long lines otherwise they will be eaten by the server..
		if(message.length >= 500) {
			const msg = _.splitLine(message, 500);
			message = msg[0];

			setTimeout(() => {
				this._sendMessage(delay, channel, msg[1], () => {});
			}, 350);
		}

		this.ws.send(`PRIVMSG ${chan} :${message}`);

		const emotes = {};

		// Parse regex and string emotes..
		Object.keys(this.emotesets).forEach(id => this.emotesets[id].forEach(emote => {
			const emoteFunc = _.isRegex(emote.code) ? parse.emoteRegex : parse.emoteString;
			return emoteFunc(message, emote.code, emote.id, emotes);
		})
		);

		// Merge userstate with parsed emotes..
		const userstate = Object.assign(
			this.userstate[chan],
			parse.emotes({ emotes: parse.transformEmotes(emotes) || null })
		);

		const messagesLogLevel = _.get(this.opts.options.messagesLogLevel, 'info');

		// Message is an action (/me <message>)..
		const actionMessage = _.actionMessage(message);
		if(actionMessage) {
			userstate['message-type'] = 'action';
			this.log[messagesLogLevel](`[${chan}] *<${this.getUsername()}>: ${actionMessage[1]}`);
			this.emits([ 'action', 'message' ], [
				[ chan, userstate, actionMessage[1], true ]
			]);
		}


		// Message is a regular chat message..
		else {
			userstate['message-type'] = 'chat';
			this.log[messagesLogLevel](`[${chan}] <${this.getUsername()}>: ${message}`);
			this.emits([ 'chat', 'message' ], [
				[ chan, userstate, message, true ]
			]);
		}
		if(typeof fn === 'function') {
			fn(resolve, reject);
		}
		else {
			resolve();
		}
	});
};

// Send a reply message to channel..
client.prototype._sendReplyMessage = function _sendReplayMessage(delay, channel, message, msgId, fn) {
	// Promise a result..
	return new Promise((resolve, reject) => {
		// Make sure the socket is opened and not logged in as a justinfan user..
		if(!this._isConnected()) {
			return reject('Not connected to server.');
		}
		else if(_.isJustinfan(this.getUsername())) {
			return reject('Cannot send anonymous messages.');
		}
		const chan = _.channel(channel);
		if(!this.userstate[chan]) { this.userstate[chan] = {}; }

		// Split long lines otherwise they will be eaten by the server..
		if(message.length >= 500) {
			const msg = _.splitLine(message, 500);
			message = msg[0];

			setTimeout(() => {
				this._sendReplyMessage(delay, channel, msg[1], () => {});
			}, 350);
		}

		this.ws.send(`@reply-parent-msg-id=${msgId} PRIVMSG ${chan} :${message}`);

		const emotes = {};

		// Parse regex and string emotes..
		Object.keys(this.emotesets).forEach(id => this.emotesets[id].forEach(emote => {
			const emoteFunc = _.isRegex(emote.code) ? parse.emoteRegex : parse.emoteString;
			return emoteFunc(message, emote.code, emote.id, emotes);
		})
		);

		// Merge userstate with parsed emotes..
		const userstate = Object.assign(
			this.userstate[chan],
			parse.emotes({ emotes: parse.transformEmotes(emotes) || null })
		);

		const messagesLogLevel = _.get(this.opts.options.messagesLogLevel, 'info');

		// Message is an action (/me <message>)..
		const actionMessage = _.actionMessage(message);
		if(actionMessage) {
			userstate['message-type'] = 'action';
			this.log[messagesLogLevel](`[${chan}] *<${this.getUsername()}>: ${actionMessage[1]}`);
			this.emits([ 'action', 'message' ], [
				[ chan, userstate, actionMessage[1], true ]
			]);
		}


		// Message is a regular chat message..
		else {
			userstate['message-type'] = 'chat';
			this.log[messagesLogLevel](`[${chan}] <${this.getUsername()}>: ${message}`);
			this.emits([ 'chat', 'message' ], [
				[ chan, userstate, message, true ]
			]);
		}
		if(typeof fn === 'function') {
			fn(resolve, reject);
		}
		else {
			resolve();
		}
	});
};

// Grab the emote-sets object from the API..
client.prototype._updateEmoteset = function _updateEmoteset(sets) {
	let setsChanges = sets !== undefined;
	if(setsChanges) {
		if(sets === this.emotes) {
			setsChanges = false;
		}
		else {
			this.emotes = sets;
		}
	}
	if(this._skipUpdatingEmotesets) {
		if(setsChanges) {
			this.emit('emotesets', sets, {});
		}
		return;
	}
	const setEmotesetTimer = () => {
		if(this._updateEmotesetsTimerDelay > 0) {
			clearTimeout(this._updateEmotesetsTimer);
			this._updateEmotesetsTimer = setTimeout(() => this._updateEmoteset(), this._updateEmotesetsTimerDelay);
		}
	};
	this._getToken()
	.then(token => {
		const url = `https://api.twitch.tv/kraken/chat/emoticon_images?emotesets=${sets}`;
		/** @type {import('node-fetch').Response} */
		return _fetch(url, {
			headers: {
				'Accept': 'application/vnd.twitchtv.v5+json',
				'Authorization': `OAuth ${_.token(token)}`,
				'Client-ID': this.clientId
			}
		});
	})
	.then(res => res.json())
	.then(data => {
		this.emotesets = data.emoticon_sets || {};
		this.emit('emotesets', sets, this.emotesets);
		setEmotesetTimer();
	})
	.catch(() => setEmotesetTimer());
};
// Get current username..
client.prototype.getUsername = function getUsername() {
	return this.username;
};
// Get current options..
client.prototype.getOptions = function getOptions() {
	return this.opts;
};
// Get current channels..
client.prototype.getChannels = function getChannels() {
	return this.channels;
};
// Check if username is a moderator on a channel..
client.prototype.isMod = function isMod(channel, username) {
	const chan = _.channel(channel);
	if(!this.moderators[chan]) { this.moderators[chan] = []; }
	return this.moderators[chan].includes(_.username(username));
};
// Get readyState..
client.prototype.readyState = function readyState() {
	if(this.ws === null) { return 'CLOSED'; }
	return [ 'CONNECTING', 'OPEN', 'CLOSING', 'CLOSED' ][this.ws.readyState];
};
// Determine if the client has a WebSocket and it's open..
client.prototype._isConnected = function _isConnected() {
	return this.ws !== null && this.ws.readyState === 1;
};
// Disconnect from server..
client.prototype.disconnect = function disconnect() {
	return new Promise((resolve, reject) => {
		if(this.ws !== null && this.ws.readyState !== 3) {
			this.wasCloseCalled = true;
			this.log.info('Disconnecting from server..');
			this.ws.close();
			this.once('_promiseDisconnect', () => resolve([ this.server, ~~this.port ]));
		}
		else {
			this.log.error('Cannot disconnect from server. Socket is not opened or connection is already closing.');
			reject('Cannot disconnect from server. Socket is not opened or connection is already closing.');
		}
	});
};
client.prototype.off = client.prototype.removeListener;

// Expose everything, for browser and Node..
if(typeof module !== 'undefined' && module.exports) {
	module.exports = client;
}
if(typeof window !== 'undefined') {
	window.tmi = {};
	window.tmi.client = client;
	window.tmi.Client = client;
}