'''
paypal.py contains a handful of methods for interacting
with Paypal data and returning the responses as JSON.
'''

import requests
import urllib
import urllib2
import json
import simplejson as json2
import googlemaps
from django.conf import settings
from datetime import datetime
from time import strftime
import unicodedata

authorization_url = 'https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/authorize?client_id='
access_token_url  = 'https://api.sandbox.paypal.com/v1/oauth2/token'

#password:testing123
#cafe.mui-buyer@gmail.com
#https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/authorize?client_id=AcOIP0f8NTl3iv5Etw2nakNrgPmjE65v84a2NQD5mm8-z-dTyhMSNHZuxHbHUaTAxLQIE0u-A2DFEY8M&response_type=code&scope=openid&redirect_uri=http://localhost:8000/hackathon/paypal/


class PaypalOauthClient(object):
	'''
	Python Client for Paypal API.
	'''

	access_token = None
	user_data = None

	def __init__(self, client_id, client_secret):
		'''
		Parameters:
			client_id: String
				- The client_id from registering application
				  on Instagram.
			client_secret: String
				- The client_secret from registering application
				  on Instagram.
		'''

		self.client_id 		= client_id
		self.client_secret 	= client_secret


	def get_authorize_url(self):
		''' 
		Obtains authorize url link with given client_id.

		Returns:
			auth_url: String
				- The authorization url.
		'''

		auth_url = authorization_url + self.client_id + '&response_type=code&scope=openid&redirect_uri=http://localhost:8000/hackathon/paypal/'
		return auth_url


	def get_access_token(self):
		''' 
		Obtains access token.

		Parameters:
			code: String
				- The code is retrieved from the authorization url parameter
				  to obtain access_token.
		'''

		headers = {
					'Accept': 'application/json',
					'Accept-Language': 'en_US',
					'content-type': 'application/x-www-form-urlencoded'
				  }
		data = { 'grant_type': 'client_credentials'}


		req = requests.post(access_token_url, data=data, headers= headers, auth=(self.client_id, self.client_secret))
		
		if req.status_code != 200:
			raise Exception("Invalid response %s." %  req.status_code)
		
		content = unicodedata.normalize('NFKD', req.text).encode('ascii','ignore')
		jsonlist = json2.loads(content)


		self.access_token = jsonlist['access_token']


	def test(self):
		link ='https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/identity/openidconnect/userinfo/?schema=openid'
		req = requests.get(link, headers={'Content-Type':'application/json', 'Authorization': self.access_token})
		print req