import os
import redis
from django.conf import settings
from urllib.parse import urlparse


def redis_instance():
    # connect to redis
    if (
        settings.DOCKERIZED
        or os.environ.get("DJANGO_SETTINGS_MODULE", "plane.settings.production")
        == "plane.settings.local"
    ):
        ri = redis.Redis.from_url(settings.REDIS_URL, db=0)
    else:
        url = urlparse(settings.REDIS_URL)
        ri = redis.Redis(
            host=url.hostname,
            port=url.port,
            password=url.password,
            ssl=True,
            ssl_cert_reqs=None,
        )

    return ri