import time
from typing import Annotated

from redis import Redis
from redis.asyncio import Redis as AsyncRedis
from fastapi import Depends, Header

from api.core.exception import ResponseException
from core.character.adventure import get_adv_info
from database.connect import get_async_redis, get_redis
from api.core.Auth import AlterState
import base64
import json
from api.core.Redis import get_redis_info

RedisDep = Annotated[Redis, Depends(get_redis)]
AsyncRedisDep = Annotated[AsyncRedis, Depends(get_async_redis)]


def alterToken(redis: RedisDep, alter_token: str | None = Header(None)):
    if alter_token is not None:
        try:
            decoded_bytes = base64.urlsafe_b64decode(alter_token)
            decoded_str = decoded_bytes.decode('utf-8')
            alter = json.loads(decoded_str)
            # 6小时过期
            if (int(time.time() * 1000) - alter['time']) / (60 * 60 * 1000) > 6:
                raise ResponseException('登录过期或无效Token，请刷新后重试')
            alterData = get_redis_info(redis, f'dcalc:adventure:{alter["alter"]}', lambda: get_adv_info(alter['alter']))
            if alterData is None:
                raise ResponseException('登录过期或无效Token，请刷新后重试')
            return AlterState(alterData['class'], alter_token, {}, alter.get('equVersion', '0'), alter['time'])
        except (base64.binascii.Error, json.JSONDecodeError, KeyError, TypeError, UnicodeDecodeError):
            raise ResponseException('登录过期或无效Token，请刷新后重试')
    else:
        raise ResponseException('登录过期或无效Token，请刷新后重试')
    pass


AltersDep = Annotated[AlterState, Depends(alterToken)]

# def authorize(redis:RedisDep, access_token: Optional[str] = Header(None)):
#     if access_token is not None:
#         info = readToken(access_token, redis)
#         return info
#     else:
#         raise ResponseException('登录过期或无效Token，请刷新后重试')


# def unauthorize(redis:RedisDep, access_token: Optional[str] = Header(None)):
#     if access_token is not None:
#         return deleteToken(access_token, redis)

# TokenDep = Annotated[AlterState, Depends(authorize)]