var FFZ = window.FrankerFaceZ,
	utils = require('../utils'),
	constants = require('../constants');


// --------------------
// Initialization
// --------------------

FFZ.prototype.setup_channel = function() {
	// Settings stuff!
	document.body.classList.toggle("ffz-hide-view-count", !this.settings.channel_views);

	this.log("Creating channel style element.");
	var s = this._channel_style = document.createElement('style');
	s.id = "ffz-channel-css";
	document.head.appendChild(s);

	this.log("Hooking the Ember Channel Index view.");
	var Channel = App.__container__.resolve('view:channel/index'),
		f = this;

	if ( ! Channel )
		return;

	this._modify_cindex(Channel);

	// The Stupid View Fix. Is this necessary still?
	try {
		Channel.create().destroy();
	} catch(err) { }

	// Update Existing
	for(var key in Ember.View.views) {
		if ( ! Ember.View.views.hasOwnProperty(key) )
			continue;

		var view = Ember.View.views[key];
		if ( !(view instanceof Channel) )
			continue;

		this.log("Manually updating Channel Index view.", view);
		this._modify_cindex(view);
		view.ffzInit();
	};


	this.log("Hooking the Ember Channel controller.");

	Channel = App.__container__.lookup('controller:channel');
	if ( ! Channel )
		return;

	Channel.reopen({
		ffzUpdateUptime: function() {
			if ( f._cindex )
				f._cindex.ffzUpdateUptime();

		}.observes("isLive", "content.id"),

		ffzUpdateTitle: function() {
			var name = this.get('content.name'),
				display_name = this.get('content.display_name');

			if ( display_name )
				FFZ.capitalization[name] = [display_name, Date.now()];

			if ( f._cindex )
				f._cindex.ffzFixTitle();
		}.observes("content.status", "content.id"),

		ffzHostTarget: function() {
			var target = this.get('content.hostModeTarget'),
				name = target && target.get('name'),
				display_name = target && target.get('display_name');

			if ( display_name )
				FFZ.capitalization[name] = [display_name, Date.now()];

			if ( f.settings.group_tabs && f._chatv )
				f._chatv.ffzRebuildTabs();
		}.observes("content.hostModeTarget")
	});
}


FFZ.prototype._modify_cindex = function(view) {
	var f = this;

	view.reopen({
		didInsertElement: function() {
			this._super();
			try {
				this.ffzInit();
			} catch(err) {
				f.error("CIndex didInsertElement: " + err);
			}
		},

		willClearRender: function() {
			try {
				this.ffzTeardown();
			} catch(err) {
				f.error("CIndex willClearRender: " + err);
			}
			return this._super();
		},

		ffzInit: function() {
			f._cindex = this;
			this.get('element').setAttribute('data-channel', this.get('controller.id'));
			this.ffzFixTitle();
			this.ffzUpdateUptime();
			this.ffzUpdateChatters();

			var el = this.get('element').querySelector('.svg-glyph_views:not(.ffz-svg)')
			if ( el )
				el.parentNode.classList.add('twitch-channel-views');
		},

		ffzFixTitle: function() {
			if ( f.has_bttv || ! f.settings.stream_title )
				return;

			var status = this.get("controller.status"),
				channel = this.get("controller.id");

			status = f.render_tokens(f.tokenize_line(channel, channel, status, true));

			this.$(".title span").each(function(i, el) {
				var scripts = el.querySelectorAll("script");
				el.innerHTML = scripts[0].outerHTML + status + scripts[1].outerHTML;
			});
		},


		ffzUpdateChatters: function() {
			// Get the counts.
			var room_id = this.get('controller.id'),
				room = f.rooms && f.rooms[room_id];

			if ( ! room || ! f.settings.chatter_count ) {
				var el = this.get('element').querySelector('#ffz-chatter-display');
				el && el.parentElement.removeChild(el);
				el = this.get('element').querySelector('#ffz-ffzchatter-display');
				el && el.parentElement.removeChild(el);
				return;
			}

			var chatter_count = Object.keys(room.room.get('ffz_chatters') || {}).length,
				ffz_chatters = room.ffz_chatters || 0;

			var el = this.get('element').querySelector('#ffz-chatter-display span');
			if ( ! el ) {
				var cont = this.get('element').querySelector('.stats-and-actions .channel-stats');
				if ( ! cont )
					return;

				var stat = document.createElement('span');
				stat.className = 'ffz stat';
				stat.id = 'ffz-chatter-display';
				stat.title = "Current Chatters";

				stat.innerHTML = constants.ROOMS + " ";
				el = document.createElement("span");
				stat.appendChild(el);

				var other = cont.querySelector("#ffz-ffzchatter-display");
				if ( other )
					cont.insertBefore(stat, other);
				else
					cont.appendChild(stat);

				jQuery(stat).tipsy();
			}

			el.innerHTML = utils.number_commas(chatter_count);

			if ( ! ffz_chatters ) {
				el = this.get('element').querySelector('#ffz-ffzchatter-display');
				el && el.parentNode.removeChild(el);
				return;
			}

			el = this.get('element').querySelector('#ffz-ffzchatter-display span');
			if ( ! el ) {
				var cont = this.get('element').querySelector('.stats-and-actions .channel-stats');
				if ( ! cont )
					return;

				var stat = document.createElement('span');
				stat.className = 'ffz stat';
				stat.id = 'ffz-ffzchatter-display';
				stat.title = "Chatters with FrankerFaceZ";

				stat.innerHTML = constants.ZREKNARF + " ";
				el = document.createElement("span");
				stat.appendChild(el);

				var other = cont.querySelector("#ffz-chatter-display");
				if ( other )
					cont.insertBefore(stat, other.nextSibling);
				else
					cont.appendChild(stat);

				jQuery(stat).tipsy();
			}

			el.innerHTML = utils.number_commas(ffz_chatters);
		},


		ffzUpdateUptime: function() {
			if ( this._ffz_update_uptime ) {
				clearTimeout(this._ffz_update_uptime);
				delete this._ffz_update_uptime;
			}

			if ( ! f.settings.stream_uptime || ! this.get("controller.isLiveAccordingToKraken") ) {
				var el = this.get('element').querySelector('#ffz-uptime-display');
				if ( el )
					el.parentElement.removeChild(el);
				return;
			}

			// Schedule an update.
			this._ffz_update_uptime = setTimeout(this.ffzUpdateUptime.bind(this), 1000);

			// Determine when the channel last went live.
			var online = this.get("controller.content.stream.created_at");
			if ( ! online )
				return;

			online = utils.parse_date(online);
			if ( ! online )
				return;

			var uptime = Math.floor((Date.now() - online.getTime()) / 1000);
			if ( uptime < 0 )
				return;

			var el = this.get('element').querySelector('#ffz-uptime-display span');
			if ( ! el ) {
				var cont = this.get('element').querySelector('.stats-and-actions .channel-stats');
				if ( ! cont )
					return;

				var stat = document.createElement('span');
				stat.className = 'ffz stat';
				stat.id = 'ffz-uptime-display';
				stat.title = "Stream Uptime <nobr>(since " + online.toLocaleString() + ")</nobr>";

				stat.innerHTML = constants.CLOCK + " ";
				el = document.createElement("span");
				stat.appendChild(el);

				var viewers = cont.querySelector(".live-count");
				if ( viewers )
					cont.insertBefore(stat, viewers.nextSibling);
				else {
					try {
						viewers = cont.querySelector("script:nth-child(0n+2)");
						cont.insertBefore(stat, viewers.nextSibling);
					} catch(err) {
						cont.insertBefore(stat, cont.childNodes[0]);
					}
				}

				jQuery(stat).tipsy({html: true});
			}

			el.innerHTML = utils.time_to_string(uptime);
		},

		ffzTeardown: function() {
			this.get('element').setAttribute('data-channel', '');
			f._cindex = undefined;
			if ( this._ffz_update_uptime )
				clearTimeout(this._ffz_update_uptime);
		}
	});
}


// ---------------
// Settings
// ---------------

FFZ.settings_info.chatter_count = {
	type: "boolean",
	value: false,

	category: "Channel Metadata",

	name: "Chatter Count",
	help: "Display the current number of users connected to chat beneath the channel.",

	on_update: function(val) {
			if ( this._cindex )
				this._cindex.ffzUpdateChatters();

			if ( ! val || ! this.rooms )
				return;

			// Refresh the data.
			for(var room_id in this.rooms)
				this.rooms.hasOwnProperty(room_id) && this.rooms[room_id].room && this.rooms[room_id].room.ffzInitChatterCount();
		}
	};


FFZ.settings_info.channel_views = {
	type: "boolean",
	value: true,

	category: "Channel Metadata",
	name: "Channel Views",
	help: 'Display the number of times the channel has been viewed beneath the stream.',
	on_update: function(val) {
			document.body.classList.toggle("ffz-hide-view-count", !val);
		}
	};


FFZ.settings_info.stream_uptime = {
	type: "boolean",
	value: false,

	category: "Channel Metadata",
	name: "Stream Uptime",
	help: 'Display the stream uptime under a channel by the viewer count.',
	on_update: function(val) {
			if ( this._cindex )
				this._cindex.ffzUpdateUptime();
		}
	};


FFZ.settings_info.stream_title = {
	type: "boolean",
	value: true,
	no_bttv: true,

	category: "Channel Metadata",
	name: "Title Links",
	help: "Make links in stream titles clickable.",
	on_update: function(val) {
			if ( this._cindex )
				this._cindex.ffzFixTitle();
		}
	};