dekun
20 lines
687 B
Python
20 lines
687 B
Python
"""期权买一流动性：张数 × ctMult 是否覆盖名义 ETH。"""
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from __future__ import annotations
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def contracts_for_eth(qty_eth: float, ct_mult: float) -> float:
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m = float(ct_mult) if ct_mult and ct_mult > 0 else 0.01
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return float(qty_eth) / m
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def eth_from_contracts(contracts: float, ct_mult: float) -> float:
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m = float(ct_mult) if ct_mult and ct_mult > 0 else 0.01
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return float(contracts) * m
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def bid_covers_eth(*, bid_sz_contracts: float | None, ct_mult: float, need_eth: float) -> bool:
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if bid_sz_contracts is None or bid_sz_contracts <= 0:
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return False
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return eth_from_contracts(bid_sz_contracts, ct_mult) + 1e-12 >= float(need_eth)
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