PaiGram/apps/cookies/cache.py
2022-08-05 19:14:29 +08:00

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from typing import List, Union
from model.base import RegionEnum
from utils.error import RegionNotFoundError
from utils.redisdb import RedisDB
from .error import CookiesCachePoolExhausted
class PublicCookiesCache:
"""使用优先级(score)进行排序对使用次数最少的Cookies进行审核"""
def __init__(self, redis: RedisDB):
self.client = redis.client
self.score_qname = "cookie:public"
self.end = 20
def get_queue_name(self, region: RegionEnum):
if region == RegionEnum.HYPERION:
return self.score_qname + ":yuanshen"
elif region == RegionEnum.HOYOLAB:
return self.score_qname + ":genshin"
else:
raise RegionNotFoundError(region.name)
async def putback(self, uid: int, region: RegionEnum):
"""重新添加单个到缓存列表
:param uid:
:param region:
:return:
"""
qname = self.get_queue_name(region)
score_maps = {f"{uid}": 0}
result = await self.client.zrem(qname, f"{uid}")
if result == 1:
await self.client.zadd(qname, score_maps)
return result
async def add(self, uid: Union[List[int], int], region: RegionEnum):
"""单个或批量添加到缓存列表
:param uid:
:param region:
:return: 成功返回列表大小
"""
qname = self.get_queue_name(region)
if isinstance(uid, int):
score_maps = {f"{uid}": 0}
elif isinstance(uid, list):
score_maps = {}
for i in uid:
score_maps[f"{i}"] = 0
else:
raise TypeError(f"uid variable type error")
async with self.client.pipeline(transaction=True) as pipe:
# nx:只添加新元素。不要更新已经存在的元素
await pipe.zadd(qname, score_maps, nx=True)
await pipe.zcard(qname)
add, count = await pipe.execute()
return int(add), count
async def get(self, region: RegionEnum):
"""从缓存列表获取
:param region:
:return:
"""
qname = self.get_queue_name(region)
scores = await self.client.zrevrange(qname, 0, self.end, withscores=True, score_cast_func=int)
if len(scores) > 0:
def take_score(elem):
return elem[1]
scores.sort(key=take_score)
key = scores[0][0]
score = scores[0][1]
else:
raise CookiesCachePoolExhausted
async with self.client.pipeline(transaction=True) as pipe:
await pipe.zincrby(qname, 1, key)
await pipe.execute()
return int(key), score + 1
async def delete(self, uid: int, region: RegionEnum):
qname = self.get_queue_name(region)
async with self.client.pipeline(transaction=True) as pipe:
await pipe.zrem(qname, uid)
return await pipe.execute()
async def count(self, limit: bool = True):
async with self.client.pipeline(transaction=True) as pipe:
if limit:
await pipe.zcount(0, self.end)
else:
await pipe.zcard(self.score_qname)
return await pipe.execute()