97 lines
2.4 KiB
Python
97 lines
2.4 KiB
Python
"""Unit classes that deals with rate, item & duration
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"""
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from enum import Enum
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from typing import Union
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class Duration(Enum):
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"""Interval helper class"""
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SECOND = 1000
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MINUTE = 1000 * 60
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HOUR = 1000 * 60 * 60
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DAY = 1000 * 60 * 60 * 24
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WEEK = 1000 * 60 * 60 * 24 * 7
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def __mul__(self, mutiplier: float) -> int:
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return int(self.value * mutiplier)
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def __rmul__(self, multiplier: float) -> int:
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return self.__mul__(multiplier)
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def __add__(self, another_duration: Union["Duration", int]) -> int:
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return self.value + int(another_duration)
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def __radd__(self, another_duration: Union["Duration", int]) -> int:
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return self.__add__(another_duration)
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def __int__(self) -> int:
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return self.value
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def __eq__(self, duration: object) -> bool:
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if not isinstance(duration, (Duration, int)):
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return NotImplemented
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return self.value == int(duration)
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@staticmethod
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def readable(value: int) -> str:
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notes = [
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(Duration.WEEK, "w"),
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(Duration.DAY, "d"),
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(Duration.HOUR, "h"),
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(Duration.MINUTE, "m"),
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(Duration.SECOND, "s"),
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]
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for note, shorten in notes:
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if value >= note.value:
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decimal_value = value / note.value
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return f"{decimal_value:0.1f}{shorten}" # noqa: E231
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return f"{value}ms"
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class RateItem:
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"""RateItem is a wrapper for bucket to work with"""
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name: str
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weight: int
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timestamp: int
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def __init__(self, name: str, timestamp: int, weight: int = 1):
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self.name = name
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self.timestamp = timestamp
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self.weight = weight
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def __str__(self) -> str:
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return f"RateItem(name={self.name}, weight={self.weight}, timestamp={self.timestamp})"
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class Rate:
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"""Rate definition.
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Args:
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limit: Number of requests allowed within ``interval``
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interval: Time interval, in miliseconds
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"""
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limit: int
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interval: int
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def __init__(
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self,
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limit: int,
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interval: Union[int, Duration],
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):
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self.limit = limit
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self.interval = int(interval)
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assert self.interval
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assert self.limit
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def __str__(self) -> str:
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return f"limit={self.limit}/{Duration.readable(self.interval)}"
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def __repr__(self) -> str:
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return f"limit={self.limit}/{self.interval}"
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