#!/usr/bin/env python
# -*- coding: utf-8 -*-

from typing import Any

import aioredis

from core.config import settings

# 同步Redis
# class RedisCli(object):
#
#     def __init__(self,
#                  *,
#                  host: str,
#                  port: int = 6379,
#                  password: str = "",
#                  db: int = 0,
#                  socket_timeout: int = 5):
#         self._redis_client = None
#         self.host = host
#         self.port = port
#         self.password = password
#         self.db = db
#         self.socket_timeout = socket_timeout
#
#     def init_redis_connect(self) -> None:
#         """
#         初始化连接
#         :return:
#         """
#         try:
#             self._redis_client = redis.Redis(host=self.host,
#                                              port=self.port,
#                                              password=self.password,
#                                              socket_timeout=self.socket_timeout,
#                                              decode_responses=True)
#             if not self._redis_client.ping():
#                 print("Connect Redis Timeout!")
#                 sys.exit()
#         except (redis.AuthenticationError, Exception) as ex:
#             print(f"Connect Redis Error: {str(ex)}")
#             sys.exit()
#
#     def __getattr__(self, item):
#         return getattr(self._redis_client, item)
#
#     def __getitem__(self, item):
#         return self._redis_client[item]
#
#     def __setitem__(self, key, value):
#         self._redis_client[key] = value
#
#     def __delitem__(self, key):
#         del self._redis_client[key]
#
#
# redis_client = RedisCli(host=settings.REDIS_HOST,
#                         port=settings.REDIS_PORT,
#                         password=settings.REDIS_PASSWORD,
#                         db=settings.REDIS_DB)


# 异步Redis
class AsyncRedis(object):

    def __init__(self,
                 host: str,
                 port: int = 6379,
                 password: str = "",
                 db: int = 0):
        self._redis = None
        self.host = host
        self.port = port
        self.password = password
        self.db = db

    async def get_redis_pool(self):
        if not self._redis:
            params = {
                "address": f"redis://{self.host}:{self.port}",
                "db": self.db
            }
            if self.password:
                params["password"] = self.password
            self._redis = await aioredis.create_redis_pool(**params)
        return self._redis

    async def close(self):
        if self._redis:
            print("Close Redis Pool!!")
            self._redis.close()
            await self._redis.wait_closed()

    async def set(self, key: str, value: Any, *, expire: int = 9):
        r = await self.get_redis_pool()
        await r.set(key, value, expire=expire)

    async def get(self, key: str):
        r = await self.get_redis_pool()
        val = await r.get(key)
        return val

    async def delete(self, key: str):
        r = await self.get_redis_pool()
        await r.delete(key)


redis_client = AsyncRedis(host=settings.REDIS_HOST,
                          port=settings.REDIS_PORT,
                          password=settings.REDIS_PASSWORD,
                          db=settings.REDIS_DB)

__all__ = ["redis_client"]