master/usecase/sandbox.py
2026-04-02 13:27:44 +03:00

108 lines
3.2 KiB
Python

from dataclasses import dataclass
from datetime import timedelta
from uuid import uuid4
from domain.sandbox import SandboxSession
from usecase.interface import Clock, Logger, SandboxRuntime, SandboxSessionRepository
@dataclass(frozen=True, slots=True)
class CreateSandboxCommand:
chat_id: str
class CreateSandbox:
def __init__(
self,
repository: SandboxSessionRepository,
runtime: SandboxRuntime,
clock: Clock,
logger: Logger,
ttl: timedelta,
) -> None:
self._repository = repository
self._runtime = runtime
self._clock = clock
self._logger = logger
self._ttl = ttl
def execute(self, command: CreateSandboxCommand) -> SandboxSession:
now = self._clock.now()
session = self._repository.get_active_by_chat_id(command.chat_id)
if session is not None and session.expires_at > now:
self._logger.info(
'sandbox_reused',
attrs={
'chat_id': command.chat_id,
'session_id': session.session_id,
'container_id': session.container_id,
},
)
return session
if session is not None:
self._logger.info(
'sandbox_replaced',
attrs={
'chat_id': command.chat_id,
'session_id': session.session_id,
'container_id': session.container_id,
},
)
self._runtime.stop(session.container_id)
self._repository.delete(session.session_id)
new_session = self._runtime.create(
session_id=_new_session_id(),
chat_id=command.chat_id,
expires_at=now + self._ttl,
)
self._repository.save(new_session)
self._logger.info(
'sandbox_created',
attrs={
'chat_id': command.chat_id,
'session_id': new_session.session_id,
'container_id': new_session.container_id,
},
)
return new_session
class CleanupExpiredSandboxes:
def __init__(
self,
repository: SandboxSessionRepository,
runtime: SandboxRuntime,
clock: Clock,
logger: Logger,
) -> None:
self._repository = repository
self._runtime = runtime
self._clock = clock
self._logger = logger
def execute(self) -> list[SandboxSession]:
now = self._clock.now()
expired_sessions = self._repository.list_expired(now)
cleaned_sessions: list[SandboxSession] = []
for session in expired_sessions:
self._runtime.stop(session.container_id)
self._repository.delete(session.session_id)
cleaned_sessions.append(session)
self._logger.info(
'sandbox_cleaned',
attrs={
'chat_id': session.chat_id,
'session_id': session.session_id,
'container_id': session.container_id,
},
)
return cleaned_sessions
def _new_session_id() -> str:
return uuid4().hex