import httplib2, urllib

class foursquare:
	def __init__(self, username, password):
		self.username = username
		self.password = password
		
	def checkin(self, vid = None, venue = None, shout = None, private = 0, twitter = 0, facebook = 0, geolat = None, geolong = None):
		params = {'vid':vid, 'venue':venue, 'shout':shout, 'private':private, 'twitter':twitter, 'facebook':facebook, 'geolat':geolat, 'geolong':geolong}
		url = "https://api.foursquare.com/v1/checkin"
		return self.dorequest(url, "POST", params)

	def venues(self, geolat, geolong, l = 10, q = None):
		params = {'geolat':geolat, 'geolong':geolong, 'l':l, 'q':q}
		url = "http://api.foursquare.com/v1/venues"
		return self.dorequest(url, "GET", params) 
		
	def dorequest(self, url, method, params):	
		for key in params:
			if key is None:
				del params[key] # Remove keys with no value, compliance with the API
		
		encodedparams = urllib.urlencode(params)
			
		conn = httplib2.Http()
		conn.add_credentials(self.username, self.password)
		
		if method == "GET":
			response = conn.request(url + "?" + encodedparams, method)
		if method == "POST":
			response = conn.request(url, method, encodedparams, '{"Content-type": "application/x-www-form-urlencoded", "Accept": "text/plain"}')
		return response
		
if __name__ == "__main__":
	my4sq = foursquare("username", "password")
	checkinresult = my4sq.checkin()
	print(checkinresult)