35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
from __future__ import annotations
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from typing import Optional
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ADVANCE_PAYMENT = "advance_payment"
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ARRIVE_PAYMENT = "arrive_payment"
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CLAUSE_LABELS = {
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"volume_settlement": "按量结算",
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"monthly_settlement": "月结",
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"quarterly_settlement": "季结",
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"other_settlement": "其他",
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}
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ADVANCE_CLAUSE = (
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"款到发货。需方付款后安排发货，需方收到货物后，供方开具增值税专用发票。"
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)
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ARRIVE_CLAUSE = (
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"货到付款，需方收到供方货物后，供方开具增值税专用发票，无异议后，以现汇方式月结。"
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)
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def default_settlement_clause(settlement_method: Optional[str]) -> str:
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method = (settlement_method or "").strip() or ARRIVE_PAYMENT
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if method == ADVANCE_PAYMENT:
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return ADVANCE_CLAUSE
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if method in CLAUSE_LABELS:
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label = CLAUSE_LABELS[method]
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return (
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f"请根据双方约定的结算方式：{label}。"
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"供方开具增值税专用发票，无异议后，以现汇方式月结。"
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)
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# arrive_payment 与未知值
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return ARRIVE_CLAUSE
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