Files
mywhoosh2garmin/app/sync/manager.py
Bastian Wagner 1d414d6298 feat: isolate concurrent user syncs
Wrap SyncManager.sync_user in a per-user asyncio.Lock (raising
SyncAlreadyRunning on overlap) and add sync_all_enabled() to fan out
across all enabled users with per-user failure isolation via
asyncio.gather(return_exceptions=True). The prior sync_user body is
renamed to _sync_user_locked with no logic changes.
2026-08-15 16:08:00 +02:00

283 lines
12 KiB
Python

from __future__ import annotations
import asyncio
import logging
from pathlib import Path
from typing import Any, Callable
from app.db.models import ActivityStatus, HealthState, SyncRunStatus
from app.db.repositories import ActivityRepository, SyncRunRepository, UserRepository
from app.fit.rewriter import FitFormatError
from app.garmin.uploader import GarminAuthError, GarminTransientError, GarminUploadBlocked
from app.mywhoosh.client import MyWhooshAuthError, MyWhooshIntegrationError, MyWhooshTransientError
from app.mywhoosh.tokenstore import MyWhooshTokenStore
from app.security.credentials import CredentialCipher
from app.sync.states import SyncOutcome
logger = logging.getLogger(__name__)
class SyncAlreadyRunning(RuntimeError):
pass
class SyncManager:
"""Resumable single-user MyWhoosh -> Garmin sync pipeline.
`_sync_user_locked` implements the state machine for one user's sync run.
`sync_user` wraps it with a per-user `asyncio.Lock` so only one sync can
run for a given user at a time (raising `SyncAlreadyRunning` on overlap),
and `sync_all_enabled` fans out across all enabled users, isolating each
user's failure to its own result rather than cancelling siblings.
"""
def __init__(
self,
*,
session_factory: Callable[[], Any],
credential_cipher: CredentialCipher,
settings: Any,
mywhoosh_factory: Callable[[MyWhooshTokenStore], Any],
garmin_factory: Callable[[str, str, Path], Any],
fit_converter: Callable[[Path, Path], Any],
) -> None:
self.session_factory = session_factory
self.credential_cipher = credential_cipher
self.settings = settings
self.mywhoosh_factory = mywhoosh_factory
self.garmin_factory = garmin_factory
self.fit_converter = fit_converter
self._locks: dict[int, asyncio.Lock] = {}
self._locks_guard = asyncio.Lock()
async def _lock_for(self, user_id: int) -> asyncio.Lock:
async with self._locks_guard:
return self._locks.setdefault(user_id, asyncio.Lock())
async def sync_user(self, user_id: int, mfa_code: str | None = None) -> SyncOutcome:
lock = await self._lock_for(user_id)
if lock.locked():
raise SyncAlreadyRunning(f"sync already running for user {user_id}")
async with lock:
return await self._sync_user_locked(user_id, mfa_code)
def _load_enabled_user_ids(self) -> list[int]:
with self.session_factory() as session:
return [user.id for user in UserRepository(session).list_enabled()]
async def sync_all_enabled(self) -> list[SyncOutcome | Exception]:
user_ids = self._load_enabled_user_ids()
return await asyncio.gather(
*(self.sync_user(user_id) for user_id in user_ids),
return_exceptions=True,
)
async def _sync_user_locked(self, user_id: int, mfa_code: str | None = None) -> SyncOutcome:
with self.session_factory() as session:
user = UserRepository(session).get(user_id)
if user is None:
raise ValueError(f"user {user_id} not found")
sync_run_repo = SyncRunRepository(session)
run = sync_run_repo.start(user_id)
mw_email = self.credential_cipher.decrypt(user.mywhoosh_email_enc)
mw_password = self.credential_cipher.decrypt(user.mywhoosh_password_enc)
garmin_email = self.credential_cipher.decrypt(user.garmin_email_enc)
garmin_password = self.credential_cipher.decrypt(user.garmin_password_enc)
token_dir = self.settings.tokens_dir / str(user.id)
mywhoosh = self.mywhoosh_factory(MyWhooshTokenStore(token_dir / "mywhoosh.json"))
garmin = self.garmin_factory(garmin_email, garmin_password, token_dir / "garmin")
activity_repo = ActivityRepository(session)
imported_count = 0
skipped_count = 0
failed_count = 0
stop_user_run = False
summary_error: str | None = None
try:
remote_activities = await mywhoosh.list_activities(mw_email, mw_password)
except MyWhooshTransientError as exc:
user.health_state = HealthState.DEGRADED
user.mywhoosh_state = "error"
session.commit()
remote_activities = []
stop_user_run = True
summary_error = str(exc)
except MyWhooshAuthError as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.mywhoosh_state = "auth_required"
user.action_reason = "mywhoosh_auth_required"
session.commit()
remote_activities = []
stop_user_run = True
summary_error = str(exc)
except MyWhooshIntegrationError as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.mywhoosh_state = "integration_error"
user.action_reason = "mywhoosh_integration_changed"
session.commit()
remote_activities = []
stop_user_run = True
summary_error = str(exc)
except Exception as exc:
user.health_state = HealthState.DEGRADED
user.mywhoosh_state = "error"
session.commit()
remote_activities = []
stop_user_run = True
summary_error = f"{type(exc).__name__}: {str(exc)[:200]}"
logger.warning(
"sync_user: unexpected error listing activities for user %s: %s",
user.id,
exc.__class__.__name__,
)
else:
user.mywhoosh_state = "connected"
session.commit()
discovered = len(remote_activities)
for remote in remote_activities:
if stop_user_run:
break
activity, _created = activity_repo.get_or_create_discovered(
user_id=user.id,
mywhoosh_activity_id=remote.id,
activity_name=remote.title,
activity_timestamp=remote.started_at,
)
# Non-retryable failures (e.g. corrupt/unsupported FIT files) are
# terminal: never re-attempt them, and don't count them in any
# counter for this run.
if activity.status == ActivityStatus.FAILED and not activity.retryable:
continue
stage = (
activity.last_completed_stage
if activity.status == ActivityStatus.FAILED
else activity.status
)
initial_stage = stage
activity_dir = self.settings.activities_dir / str(user.id) / activity.mywhoosh_activity_id
source_path = activity_dir / "source.fit"
converted_path = activity_dir / "edge-1030-plus.fit"
try:
if stage == ActivityStatus.DISCOVERED:
fit_bytes = await mywhoosh.download_fit(remote.activity_file_id, mw_email, mw_password)
activity_dir.mkdir(parents=True, exist_ok=True)
source_path.write_bytes(fit_bytes)
activity = activity_repo.mark_downloaded(activity.id, str(source_path))
stage = activity.status
if stage in {ActivityStatus.DOWNLOADED}:
self.fit_converter(source_path, converted_path)
activity = activity_repo.mark_converted(activity.id, str(converted_path))
stage = activity.status
if stage in {ActivityStatus.CONVERTED}:
upload = await asyncio.to_thread(garmin.import_fit, converted_path, mfa_code)
if upload.duplicate:
activity = activity_repo.mark_duplicate(activity.id)
else:
activity = activity_repo.mark_imported(activity.id, upload.garmin_activity_id)
stage = activity.status
user.garmin_state = "connected"
# Only count this activity's outcome toward this run's totals
# if the state machine actually did work this call. An
# activity that was already terminal (IMPORTED/DUPLICATE)
# before this call is resume history, not this run's work.
if initial_stage not in (ActivityStatus.IMPORTED, ActivityStatus.DUPLICATE):
if activity.status == ActivityStatus.IMPORTED:
imported_count += 1
elif activity.status == ActivityStatus.DUPLICATE:
skipped_count += 1
except MyWhooshTransientError as exc:
user.health_state = HealthState.DEGRADED
user.mywhoosh_state = "error"
activity_repo.mark_failed(activity.id, str(exc), retryable=True)
failed_count += 1
except MyWhooshAuthError as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.mywhoosh_state = "auth_required"
user.action_reason = "mywhoosh_auth_required"
stop_user_run = True
summary_error = str(exc)
except MyWhooshIntegrationError as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.mywhoosh_state = "integration_error"
user.action_reason = "mywhoosh_integration_changed"
stop_user_run = True
summary_error = str(exc)
except GarminUploadBlocked as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.garmin_state = "mfa_required"
user.action_reason = "garmin_mfa_required"
stop_user_run = True
summary_error = str(exc)
except GarminAuthError as exc:
user.health_state = HealthState.ACTION_REQUIRED
user.garmin_state = "auth_required"
user.action_reason = "garmin_auth_required"
stop_user_run = True
summary_error = str(exc)
except GarminTransientError as exc:
user.health_state = HealthState.DEGRADED
user.garmin_state = "error"
activity_repo.mark_failed(activity.id, str(exc), retryable=True)
failed_count += 1
except FitFormatError as exc:
activity_repo.mark_failed(activity.id, str(exc), retryable=False)
failed_count += 1
except Exception as exc:
user.health_state = HealthState.DEGRADED
activity_repo.mark_failed(
activity.id,
f"{type(exc).__name__}: {str(exc)[:200]}",
retryable=True,
)
failed_count += 1
logger.warning(
"sync_user: unexpected error for user %s activity %s: %s",
user.id,
activity.id,
exc.__class__.__name__,
)
session.commit()
status = (
SyncRunStatus.SUCCESS
if failed_count == 0 and not stop_user_run
else SyncRunStatus.PARTIAL
if (imported_count + skipped_count) > 0
else SyncRunStatus.FAILED
)
sync_run_repo.finish(
run.id,
status=status,
discovered=discovered,
imported=imported_count,
skipped=skipped_count,
failed=failed_count,
summary_error=summary_error,
)
session.commit()
return SyncOutcome(
user_id=user.id,
status=status.value,
discovered=discovered,
imported=imported_count,
skipped=skipped_count,
failed=failed_count,
message=summary_error,
)