import requests

class ChanInfoError(Exception):
	pass;

class ChannelInfo:
	"""A class for obtaining info for a Twitch Channel"""
	def __init__(self,channel,client_id):
		self.channel = channel;
		self.client_id = client_id;
		self.resp = requests.get("https://api.twitch.tv/kraken/streams/{!s}?client_id={!s}".format(channel,client_id));
		if self.resp.json().get("error") != None:
			raise ChanInfoError("{status} {error} - \"{message}\"".format(**self.resp.json()))

	"""If the channel is online, returns true. Else, returns false."""
	def isOnline(self):
		return self.resp.json().get('stream') != None;

	"""Get the status of the stream."""
	def getStatus(self):
		return self.resp.json()['stream']['channel']['status']

	"""Get the game."""
	def getGame(self):
		return self.resp.json()['stream']['game']

	"""Get whether to display "playing" or "being"."""
	def getDisplay(self):
		return self.getGame() == "Creative"

	"""Get viewer count."""
	def getViewers(self):
		return self.resp.json()['stream']['viewers']

	"""Get embed frame (for HTML)"""
	def getEmbed(self, width=950, height=700, autoplay=False):
		return "<iframe src='http://player.twitch.tv/?channel={}&autoplay={}' width='{!s}' height='{!s}' frameborder='0' scrolling='no' allowfullscreen='true'></iframe>".format(self.channel,str(autoplay).lower(),width,height)


	"""Update data, just runs the init again."""
	def update(self):
		self.__init__(self.channel,self.client_id)