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- """转账笔缴费状态规则（正式样本缴费 / 预签约意向金共用）"""
- from __future__ import annotations
- from decimal import Decimal
- from typing import Iterable, Optional, Tuple, Union
- def can_submit_receipt(pay_status: Optional[str]) -> bool:
- return (pay_status or "").strip() == "dfj"
- def can_confirm_receipt(pay_status: Optional[str]) -> bool:
- return (pay_status or "").strip() == "jfqrz"
- def can_withdraw_receipt(pay_status: Optional[str]) -> bool:
- """仅付款确认中可撤回为已付款。"""
- return (pay_status or "").strip() == "jfqrz"
- def can_edit_transfer(pay_status: Optional[str]) -> bool:
- """财务确认收款（yjf）前可编辑：已付款 / 付款确认中。"""
- return (pay_status or "").strip() in ("dfj", "jfqrz")
- def schedule_paid_and_arrears(
- *,
- due: Union[Decimal, float, int, str, None],
- confirmed_transfers: Iterable[Union[Decimal, float, int, str, None]],
- ) -> Tuple[Decimal, Decimal]:
- """已缴 = Σ 已确认转账；欠缴 = 应缴 − 已缴（可为负表示超缴）。"""
- due_amt = Decimal(str(due or 0))
- paid = sum((Decimal(str(x or 0)) for x in confirmed_transfers), Decimal("0"))
- return paid, due_amt - paid
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