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# https://redis.io/docs/clients/python/
from redis import Redis
from dotenv import load_dotenv
from uuid import uuid4
load_dotenv()
import os
import json
from redis.commands.json.path import Path
from typing import TypedDict, List, Tuple, Optional
class User(TypedDict):
username: str
uid: str
class Chat(TypedDict):
patient: str
messages: List[Tuple[str, str]]
def get_client() -> Redis:
client = Redis(
host=os.environ["REDIS_HOST"],
port=os.environ["REDIS_PORT"],
decode_responses=True,
)
return client
def create_user(client: Redis, user: User):
maybe_user = get_user_by_username(client, user["username"])
if not maybe_user:
uid = uuid4()
user["uid"] = str(uid)
client.json().set(f"user:by-uid:{uid}", "$", user, nx=True)
client.set(f"user:uuid:by-username:{user['username']}", str(uid), nx=True)
client.json().set(f"chats:by-user-uid:{uid}", "$", [])
else:
print(f"User already existed with username={user['username']}")
def get_user_by_username(client: Redis, username: str) -> Optional[User]:
uid = client.get(f"user:uuid:by-username:{username}")
user = client.json().get(f"user:by-uid:{uid}")
return user
def get_user_chat_by_uid(client: Redis, uid: str) -> List[Chat]:
chats = client.json().get(f"chats:by-user-uid:{uid}")
return chats
def add_chat_by_uid(client: Redis, chat: Chat, uid: str):
client.json().arrappend(f"chats:by-user-uid:{uid}", "$", chat)
# if __name__ == "__main__":
# client = get_client()
# user = User(username="foo")
# chat = Chat(patient="foo", messages=[("a", "b"), ("c", "d")])
# create_user(client, user)
# user = get_user_by_username(client, user['username'])
# add_chat_by_uid(client, chat, "1")
# chats = get_user_chat_by_uid(client, "1")
# print(chats)
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