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# import json
# import uuid
# import redis
# import os
# from dotenv import load_dotenv
# load_dotenv()
# redis_instance = redis.StrictRedis(
# host=os.getenv('REDIS_HOST'),
# port=os.getenv('REDIS_PORT'),
# password=os.getenv('REDIS_PASSWORD'),
# db=0
# )
# class UserUUIDMiddleware:
# # assign a uuid to the user if they don't have one
# # store in cookies for 365 days
# def __init__(self, get_response):
# self.get_response = get_response
# self.cookie_name = 'user_uuid'
# def __call__(self, request):
# if not request.COOKIES.get(self.cookie_name):
# response = self.get_response(request)
# response.set_cookie(self.cookie_name, uuid.uuid4(), max_age=31536000)
# return response
# return self.get_response(request)
# def userTrackingContextProcessor(request):
# # ignore /rss/ path
# if '/rss/' in request.path:
# return {
# 'anonymous_users': 0,
# 'logged_in_users': 0,
# 'admin_users': 0,
# }
# # user tracking context processor - track 3 types of users (anonymous, logged in, admin)
# # based on the user's uuid cookie. Only UUID are necessary to track online users. Then we
# # separate them into anonymous, logged in, and admin users based on their permissions.
# # get the user's uuid from the cookie
# user_uuid = request.COOKIES.get('user_uuid')
# user_data = {
# 'is_authenticated': request.user.is_authenticated,
# 'is_staff': request.user.is_staff,
# }
# redis_instance.set(f"presence_{user_uuid}", json.dumps(user_data), ex=300)
# # get all online users
# online_now = redis_instance.keys('presence_*')
# # separate online users into anonymous, logged in, and admin users
# anonymous_users = []
# logged_in_users = []
# admin_users = []
# for user in online_now:
# user_data = redis_instance.get(user)
# user_data = json.loads(user_data)
# if user_data['is_authenticated'] == False and user_data['is_staff'] == False:
# anonymous_users.append(user_data)
# elif user_data['is_authenticated'] == True and user_data['is_staff'] == False:
# logged_in_users.append(user_data)
# if user_data['is_staff'] == True:
# admin_users.append(user_data)
# an = len(anonymous_users)
# lo = len(logged_in_users)
# ad = len(admin_users)
# if user_uuid is not None:
# an = max((an - 1), 0) if lo + ad > 0 else max(an - 1, 1)
# return {
# 'anonymous_users': an,
# 'logged_in_users': lo,
# 'admin_users': ad,
# }
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