41 lines
1016 B
Python
41 lines
1016 B
Python
import math
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from typing import Optional, Union
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Number = Union[int, float]
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def wu_round(value: Optional[Number]) -> Optional[int]:
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"""
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WU 结算口径四舍五入（0.5 一律进位）:
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- 正数: floor(x + 0.5)
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- 负数: ceil(x - 0.5)
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"""
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if value is None:
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return None
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x = float(value)
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if x >= 0:
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return int(math.floor(x + 0.5))
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return int(math.ceil(x - 0.5))
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def is_exact_settlement_city(city: str) -> bool:
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"""是否为不四舍五入的精确结算城市"""
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if not city:
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return False
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c = str(city).lower().strip()
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return c in ["hong kong", "hk", "香港"]
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def apply_city_settlement(city: str, value: Optional[Number]) -> Optional[int]:
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"""
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根据城市返回最终的结算值：
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- 香港: 向下取整 (e.g. 28.9 -> 28)
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- 其他: WU 规则四舍五入
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"""
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if value is None:
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return None
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if is_exact_settlement_city(city):
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return int(math.floor(float(value)))
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return wu_round(value)
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