55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
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from dataclasses import dataclass
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from enum import Enum
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from typing import Dict, Union
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class QuorumKind(Enum):
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"""QuorumKind defines the kind of quorum.
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Kinds:
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- NONE - there ain't no quorum
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- ABSOLUTE - absolute number of minimum voters is required
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- PERCENT - minimum percentage of valid voters must have voted
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"""
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NONE = 0
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ABSOLUTE = 1
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PERCENT = 2
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@dataclass
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class Quorum:
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"""Quorm defines the required quorum of a Voting.
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Absolute quorums must be greater than 0.
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Percent quorums must be greather than 0.0 and less then or equal to 100.0.
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"""
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kind: QuorumKind
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value: Union[int, float]
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def __init__(self, kind: QuorumKind = None, value: Union[float, int, None] = None):
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super(Quorum)
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if kind is None:
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self.kind = QuorumKind.NONE
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elif isinstance(kind, str):
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self.kind = QuorumKind[kind]
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else:
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self.kind = kind
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if self.kind == QuorumKind.NONE:
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self.value = 0
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elif self.kind == QuorumKind.ABSOLUTE:
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self.value = int(value)
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if self.value <= 0:
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raise ValueError(f"Value can not be less than or equal to zero: {self.value}")
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elif self.kind == QuorumKind.PERCENT:
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self.value = float(value)
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if self.value <= 0.0 or self.value > 100.0:
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raise ValueError(f"Value must be greater than 0.0 and less then or equal to 100.0: {self.value}")
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def as_dict(self) -> Dict:
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return {
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"kind": self.kind.name,
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"value": self.value,
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}
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