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plm-lottery/app/rounds/confirmation.py
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from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.db.models import PendingTransaction, Round
from app.tx.confirmation import register_handler
async def _on_payout_confirmed(session: AsyncSession, pending: PendingTransaction) -> None:
round_ = await session.scalar(select(Round).where(Round.payout_txid == pending.current_txid))
if round_ is not None and round_.status == "paying_out":
round_.status = "closed"
# The winner's own address is already watched by the Electrum listener, so
# their balance is credited by the normal deposit path once this confirms.
register_handler("payout", _on_payout_confirmed)