68 lines
2.4 KiB
Python
68 lines
2.4 KiB
Python
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"""Deduplicated informed-decision notification receipts.
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The signed-in overview is the review entry point. A receipt stores and
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announces only memo id, question, class, and submitter. Replays of the same
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delivery id return the retained receipt; a different body conflicts and leaves
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the original readable.
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"""
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from __future__ import annotations
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from sqlalchemy.exc import IntegrityError
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from sqlalchemy.ext.asyncio import AsyncSession
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from api.models.agent_message import AgentMessage
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from api.models.memo_notification import MemoNotificationReceipt
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from api.services.informed_decision_contract import Notification
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from api.services.repository_aliases import canonicalize_repository_slug
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NOTIFICATION_SENDER = "informed-decision"
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NOTIFICATION_RECIPIENT = "bernd"
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class NotificationConflict(Exception):
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def __init__(self, receipt: MemoNotificationReceipt) -> None:
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self.receipt = receipt
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async def accept_notification(
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session: AsyncSession, delivery_id: str, notice: Notification
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) -> tuple[MemoNotificationReceipt, bool]:
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existing = await session.get(MemoNotificationReceipt, delivery_id)
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if existing is not None:
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if existing.body_digest != notice.body_digest:
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raise NotificationConflict(existing)
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return existing, True
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message = AgentMessage(
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from_agent=await canonicalize_repository_slug(session, NOTIFICATION_SENDER),
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to_agent=await canonicalize_repository_slug(session, NOTIFICATION_RECIPIENT),
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subject=notice.message_subject(),
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body=notice.message_text(),
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kind="message",
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)
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session.add(message)
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await session.flush()
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receipt = MemoNotificationReceipt(
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delivery_id=delivery_id,
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body_digest=notice.body_digest,
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memo_id=notice.memo_id,
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question=notice.question,
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memo_class=notice.memo_class,
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submitter=notice.submitter,
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message_id=message.id,
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authoritative_review="signed-in-overview",
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)
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session.add(receipt)
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try:
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await session.commit()
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except IntegrityError:
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await session.rollback()
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existing = await session.get(MemoNotificationReceipt, delivery_id)
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if existing is None:
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raise
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if existing.body_digest != notice.body_digest:
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raise NotificationConflict(existing)
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return existing, True
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await session.refresh(receipt)
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return receipt, False
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