Files
MoviePilot/app/startup/composition/subscription.py
T

117 lines
4.4 KiB
Python

"""订阅事务作用域及提交后回调的组合装配。"""
from collections.abc import AsyncIterator, Iterator
from contextlib import asynccontextmanager, contextmanager
from typing import Any
from app.adapters.external.server import MoviePilotServerHelper
from app.application.subscription.complete import (
CompleteSubscriptionCommand,
configure_subscription_completion_scope,
)
from app.application.subscription.delete import (
DeleteSubscribeCommand,
SyncDeleteSubscribeCommand,
configure_delete_subscribe_scope,
configure_sync_delete_subscribe_scope,
)
from app.application.subscription.mutation import (
SubscriptionMutationService,
configure_subscription_mutation_scope,
)
from app.db.adapters.outbox import (
SqlAlchemyAsyncOutboxStager,
SqlAlchemyOutboxRepository,
)
from app.db.oper.subscribe import SubscribeOper
from app.db.oper.subscribehistory import SubscribeHistoryOper
from app.db.session import SessionFactory, async_session_scope
from app.db.uow import SqlAlchemyAsyncUnitOfWork, SqlAlchemyUnitOfWork
from app.runtime.events import EventManager
from app.schemas.types import EventType
async def _publish_modified(payload: dict[str, Any]) -> None:
"""发布事务已提交的订阅修改事件。"""
await EventManager().async_send_event(EventType.SubscribeModified, payload)
async def _publish_deleted(payload: dict[str, Any]) -> None:
"""发布事务已提交的订阅删除事件。"""
await EventManager().async_send_event(EventType.SubscribeDeleted, payload)
def _publish_deleted_sync(payload: dict[str, Any]) -> None:
"""为同步消息入口发布事务已提交的订阅删除事件。"""
EventManager().send_event(EventType.SubscribeDeleted, payload)
def _publish_completed(payload: dict[str, Any]) -> None:
"""发布已提交的订阅完成事件。"""
EventManager().send_event(EventType.SubscribeComplete, payload)
@contextmanager
def subscription_completion_scope() -> Iterator[CompleteSubscriptionCommand]:
"""为同步完成链创建独占 Session、UoW 与 durable outbox。"""
session = SessionFactory()
try:
yield CompleteSubscriptionCommand(
repository=SubscribeOper(session),
unit_of_work=SqlAlchemyUnitOfWork(session),
outbox=SqlAlchemyOutboxRepository(session),
publish=_publish_completed,
)
finally:
session.close()
@asynccontextmanager
async def subscription_mutation_scope() -> AsyncIterator[SubscriptionMutationService]:
"""为非 HTTP 入口创建独占订阅修改会话、UoW 与 outbox。"""
async with async_session_scope() as session:
yield SubscriptionMutationService(
repository=SubscribeOper(session),
history_repository=SubscribeHistoryOper(session),
unit_of_work=SqlAlchemyAsyncUnitOfWork(session),
outbox=SqlAlchemyAsyncOutboxStager(session),
publish_modified=_publish_modified,
)
@asynccontextmanager
async def delete_subscribe_scope() -> AsyncIterator[DeleteSubscribeCommand]:
"""为非 HTTP 入口创建独占订阅删除会话、UoW 与 outbox。"""
async with async_session_scope() as session:
yield DeleteSubscribeCommand(
repository=SubscribeOper(session),
unit_of_work=SqlAlchemyAsyncUnitOfWork(session),
publish_deleted=_publish_deleted,
report_deleted=MoviePilotServerHelper.async_sub_done_durable,
outbox=SqlAlchemyAsyncOutboxStager(session),
)
@contextmanager
def sync_delete_subscribe_scope() -> Iterator[SyncDeleteSubscribeCommand]:
"""为同步消息入口创建独占 Session、UoW 与 durable outbox。"""
session = SessionFactory()
try:
yield SyncDeleteSubscribeCommand(
repository=SubscribeOper(session),
unit_of_work=SqlAlchemyUnitOfWork(session),
publish_deleted=_publish_deleted_sync,
report_deleted=MoviePilotServerHelper.sub_done_durable,
outbox=SqlAlchemyOutboxRepository(session),
)
finally:
session.close()
def configure_transactional_subscription_scopes() -> None:
"""登记 Agent 等非 HTTP 入口复用的订阅事务作用域。"""
configure_subscription_mutation_scope(subscription_mutation_scope)
configure_delete_subscribe_scope(delete_subscribe_scope)
configure_sync_delete_subscribe_scope(sync_delete_subscribe_scope)
configure_subscription_completion_scope(subscription_completion_scope)