44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
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import decimal
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import fractions
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import math
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def from_wei(decimals: int, value: int) -> float:
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"""This function converts values in Wei to a token in the cic network.
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:param decimals: The decimals required for wei values.
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:type decimals: int
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:param value: Value in Wei
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:type value: int
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:return: SRF equivalent of value in Wei
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:rtype: float
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"""
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value = float(value) / (10**decimals)
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return truncate(value=value, decimals=2)
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def to_wei(decimals: int, value: int) -> int:
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"""This functions converts values from a token in the cic network to Wei.
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:param decimals: The decimals required for wei values.
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:type decimals: int
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:param value: Value in SRF
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:type value: int
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:return: Wei equivalent of value in SRF
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:rtype: int
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"""
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return int(value * (10**decimals))
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def truncate(value: float, decimals: int) -> float:
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"""This function truncates a value to a specified number of decimals places.
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:param value: The value to be truncated.
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:type value: float
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:param decimals: The number of decimals for the value to be truncated to
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:type decimals: int
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:return: The truncated value.
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:rtype: int
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"""
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with decimal.localcontext() as ctx:
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d = decimal.Decimal(str(value))
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# if d.as_tuple().exponent <= -15:
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# raise ValueError('Value too small to truncate')
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ctx.rounding = decimal.ROUND_DOWN
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return float(round(d, decimals))
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