29 lines
802 B
Python
29 lines
802 B
Python
from decimal import Decimal
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from enum import Enum
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from freqtrade.exceptions import OperationalException
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one = Decimal(1.0)
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four = Decimal(4.0)
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twenty_four = Decimal(24.0)
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class InterestMode(Enum):
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"""Equations to calculate interest"""
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HOURSPERDAY = "HOURSPERDAY"
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HOURSPER4 = "HOURSPER4" # Hours per 4 hour segment
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NONE = "NONE"
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def __call__(self, *args, **kwargs):
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borrowed, rate, hours = kwargs["borrowed"], kwargs["rate"], kwargs["hours"]
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if self.name == "HOURSPERDAY":
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return borrowed * rate * max(hours, one)/twenty_four
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elif self.name == "HOURSPER4":
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return borrowed * rate * (1 + max(0, (hours-four)/four))
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else:
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raise OperationalException("Leverage not available on this exchange with freqtrade")
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