/**

 * StreamPlayer 0.12

 * Romain Vuillemot

 */

var StreamPlayer = function(player, options) {

	if(typeof(player) == 'string')

		player = document.getElementById(player);

	if(!player)

		return;

	var handle = player.getElementsByTagName('div')[0];

	this.init(player, handle, options || {});

	this.setup();

};

StreamPlayer.prototype.init = function(player, handle, options) {

	this.callback = options.callback || null;	

	this.displayUpdate = options.displayUpdate || null;

	this.playCallback = options.playCallback || null;

	this.pauseCallback = options.pauseCallback || null;

	this.stopCallback = options.stopCallback || null;

	this.updateCallback = options.updateCallback || null;	

	this.nextCallback = options.nextCallback || null;		

	this.previousCallback = options.previousCallback || null;		

	this.ffCallback = options.ffCallback || null;

	this.fbCallback = options.fbCallback || null;		

	this.soundCallback = options.soundCallback || null;

	this.refreshCallback = options.refreshCallback || this.refreshCallback;

	this.current_time = options.current_time || null;

	this.play_mode = options.play_mode || "DATA_BY_DATA"; // "DATA_BY_TIME_INTERVAL"

	this.read_frequency = options.read_frequency || 1000; // "DATA_BY_TIME_INTERVAL"

	this.data_interval = options.data_interval || 1000; // "DATA_BY_TIME_INTERVAL"

	this.player = player;

	this.handle = handle;

	this.options = options;

	this.refreshIntervalId = null;

	this.buffer_count = 0;

	this.buffered_data = [];

	this.current_value = null;

	this.auto_start = this.getOption('auto_start', true);

	this.is_playing = this.auto_start;

	this.is_buffering = this.getOption('is_buffering', false);

	this.current_speed = this.getOption('current_speed', 1000);	

	this.buffered_pause = true;	

	this.addListeners();

	this.min_speed = options.min_speed || 4000;

	this.max_speed = options.max_speed || 100;

	this.min_time = options.min_time || 0;

	this.max_time = options.max_time || -1;

	self = this;

}

StreamPlayer.prototype.addListeners = function() {

	this.player.onclick = function(e) {

		if(e.target.className.search(/(^|\s)stop(\s|$)/) != -1 && typeof(self.stopCallback) == 'function') {

			self.stopCallback(self);

			self.update();

		} else if(e.target.className.search(/(^|\s)play(\s|$)/) != -1 && typeof(self.playCallback) == 'function') {

			self.playCallback(self);

			e.target.className = e.target.className.replace(/\s?play/g, '');

			e.target.className += " pause";

			self.is_buffering = false;

			self.is_playing = !self.is_playing;

			self.refreshIntervalId = setInterval(function () {

				self.updateCallback(self)

				self.update();

			}, self.current_speed);

		} else if(e.target.className.search(/(^|\s)pause(\s|$)/) != -1 && typeof(self.pauseCallback) == 'function') {

			self.pauseCallback();

			e.target.className = e.target.className.replace(/\s?pause/g, '');

			e.target.className += " play";

			clearInterval(self.refreshIntervalId);

			self.is_playing = !self.is_playing;

			self.update();

		} else if(e.target.className.search(/(^|\s)next(\s|$)/) != -1 && typeof(self.nextCallback) == 'function') {

			self.nextCallback(self);

			self.update();

		} else if(e.target.className.search(/(^|\s)prev(\s|$)/) != -1 && typeof(self.previousCallback) == 'function') {

			self.previousCallback(self);

			self.update();

		} else if(e.target.className.search(/(^|\s)ff(\s|$)/) != -1 && typeof(self.ffCallback) == 'function') {

			if(self.current_speed>self.max_speed) {

				if(self.play_mode=="DATA_BY_DATA")

					self.current_speed = self.current_speed/2 > self.max_speed ? self.current_speed/2 : self.max_speed;

				if(self.is_playing) {

					clearInterval(self.refreshIntervalId);

					self.refreshIntervalId = setInterval(function () {

						self.updateCallback(self);

						self.update();

					}, self.current_speed);

				}

				e.target.className.replace(/\s?disabled/g, '');

				self.ffCallback();

				document.getElementsByClassName("fb")[0].className = document.getElementsByClassName("fb")[0].className.replace(/\s?disabled/g, '');

				document.getElementsByClassName("fb")[0].disabled = false;

			}

			if(self.current_speed<=self.max_speed) {

				if(e.target.className.search(/(^|\s)disabled(\s|$)/) == -1) {

					e.target.className += " disabled";

					e.target.disabled = true;

				}

			}

		} else if(e.target.className.search(/(^|\s)fb(\s|$)/) != -1 && typeof(self.fbCallback) == 'function') {

			if(self.current_speed<self.min_speed) {

				self.current_speed = self.current_speed*2 < self.min_speed ? self.current_speed*2 : self.min_speed;

				if(self.is_playing) {

					clearInterval(self.refreshIntervalId);

					self.refreshIntervalId = setInterval(function () {

						self.updateCallback(self);

						self.update();

						return ;

					}, self.current_speed);

				}

				e.target.className.replace(/\s?disabled/g, '');

				self.fbCallback();

				document.getElementsByClassName("ff")[0].className = document.getElementsByClassName("ff")[0].className.replace(/\s?disabled/g, '');

				document.getElementsByClassName("ff")[0].disabled = false;

			} 

			if(self.current_speed==self.min_speed) {

				if(e.target.className.search(/(^|\s)disabled(\s|$)/) == -1) {

					e.target.className += " disabled";

					e.target.disabled = true;

				}

			}

		} else if(e.target.className.search(/(^|\s)soundon(\s|$)/) != -1 && typeof(self.soundCallback) == 'function') {

			e.target.className = e.target.className.replace(/\s?soundon/g, '');

			e.target.className += " soundoff";

			self.soundCallback(false);

		} else if(e.target.className.search(/(^|\s)soundoff(\s|$)/) != -1 && typeof(self.pauseCallback) == 'function') {

			e.target.className = e.target.className.replace(/\s?soundoff/g, '');

			e.target.className += " soundon";

			self.soundCallback(true);

			self.update();

		}

		self.refreshCallback(self);

	}

}

StreamPlayer.prototype.setup = function() {

	this.addListeners();

	this.update();

	if((self.current_speed==self.min_speed) && document.getElementsByClassName("fb").length > 1 && document.getElementsByClassName("fb")[0].className.search(/(^|\s)disabled(\s|$)/) == -1) {

		document.getElementsByClassName("fb")[0].className += " disabled";

		document.getElementsByClassName("fb")[0].disabled = false;

	}

	if((self.current_speed==self.min_speed) && document.getElementsByClassName("fb").length > 1 && document.getElementsByClassName("fb")[0].className.search(/(^|\s)disabled(\s|$)/) == -1) {

		document.getElementsByClassName("fb")[0].className += " disabled";

		document.getElementsByClassName("fb")[0].disabled = false;

	}

	if(typeof(self.current_time) == 'function' && self.current_time()==0) {

		if(document.getElementsByClassName("prev").length>0 && document.getElementsByClassName("prev")[0].className.search(/(^|\s)disabled(\s|$)/) == -1) {

			document.getElementsByClassName("prev")[0].className += " disabled";

			document.getElementsByClassName("prev")[0].disabled = true;

		}

	} else {

		if(document.getElementsByClassName("prev").length>0 && document.getElementsByClassName("prev")[0].className.search(/(^|\s)disabled(\s|$)/) == 1) {

			document.getElementsByClassName("prev")[0].className.replace(/\s?disabled/g, '');

			document.getElementsByClassName("prev")[0].disabled = false;

		}

	}

}

StreamPlayer.prototype.getOption = function(name, defaultValue) {

	return this.options[name] !== undefined ? this.options[name] : defaultValue;

}

StreamPlayer.prototype.update = function() {

	if(self.auto_start && typeof(self.updateCallback) == 'function' && self.refreshIntervalId==null) {

		self.refreshIntervalId = setInterval(function () {

			self.updateCallback(self);

			self.update();

			return ;

		}, self.current_speed);

	}

	if(typeof(self.current_time) == 'function' && self.current_time()==self.min_time) {

		if(document.getElementsByClassName("prev").length>0 && document.getElementsByClassName("prev")[0].className.search(/(^|\s)disabled(\s|$)/) == -1) {

			document.getElementsByClassName("prev")[0].className += " disabled";

			document.getElementsByClassName("prev")[0].disabled = true;

		}

	} else {

		if(document.getElementsByClassName("prev").length>0 && document.getElementsByClassName("prev")[0].className.search(/(^|\s)disabled(\s|$)/)>0) {

			document.getElementsByClassName("prev")[0].className = document.getElementsByClassName("prev")[0].className.replace(/\s?disabled/g, '');

			document.getElementsByClassName("prev")[0].disabled = false;

		}

	}

	if(typeof(self.current_time) == 'function' && self.current_time()==self.max_time) {

		if(document.getElementsByClassName("next").length>0 && document.getElementsByClassName("next")[0].className.search(/(^|\s)disabled(\s|$)/) == -1) {

			document.getElementsByClassName("next")[0].className += " disabled";

			document.getElementsByClassName("next")[0].disabled = true;

		}

		if(self.is_playing) {

			self.pauseCallback();

			var el = document.getElementsByClassName("pause")[0];

			el.className = el.className.replace(/\s?pause/g, '');

			el.className += " play";

			clearInterval(self.refreshIntervalId);

			self.is_playing = !self.is_playing;

			self.update();

		}

	} else {

		if(document.getElementsByClassName("next").length>0 && document.getElementsByClassName("next")[0].className.search(/(^|\s)disabled(\s|$)/)>0) {

			document.getElementsByClassName("next")[0].className = document.getElementsByClassName("next")[0].className.replace(/\s?disabled/g, '');

			document.getElementsByClassName("next")[0].disabled = false;

		}

	}

	self.refreshCallback(self);

}

StreamPlayer.prototype.refreshCallback = function() {

	return;

}