45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
from time import time
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from uuid import UUID, uuid4
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from walrus import Walrus
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class Cache:
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__instance = None
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@staticmethod
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def get_instance():
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if Cache.__instance is None:
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Cache()
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return Cache.__instance
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def __init__(self):
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if Cache.__instance is None:
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raise Exception("Cache is a singleton. Use Cache.getInstance()")
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Cache.__instance = self
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self.db = Walrus(host='localhost', port=6379, db=0)
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def add_countdown(self, total: float) -> UUID:
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countdown_id = uuid4()
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countdown = self.db.Hash(str(countdown_id))
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countdown.update(id=str(countdown_id), start=-1, total=total)
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return self.get_countdown(str(countdown_id))
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def start_countdown(self, id: UUID) -> dict:
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countdown = self.db.Hash(str(id))
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countdown.update(start=time())
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return countdown.as_dict(decode=True)
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def stop_countdown(self, id: UUID) -> dict:
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countdown = self.db.Hash(str(id))
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countdown.update(start=-1)
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return countdown.as_dict(decode=True)
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def reset_countdown(self, id: UUID) -> dict:
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countdown = self.db.Hash(str(id))
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countdown.update(start=time())
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return countdown.as_dict(decode=True)
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def get_countdown(self, id: UUID) -> dict:
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countdown = self.db.Hash(str(id))
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return countdown.as_dict(decode=True)
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