87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
"""
|
|
Copyright 2024-2026 ChatterMate
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
"""
|
|
|
|
from typing import Iterable, List, Optional, Set
|
|
from uuid import UUID
|
|
|
|
from sqlalchemy.exc import IntegrityError
|
|
from sqlalchemy.orm import Session
|
|
|
|
from app.utils.uuids import as_uuid
|
|
from app.models.notification_settings import (
|
|
NOTIFICATION_PREFERENCE_DEFAULTS,
|
|
UserNotificationSettings,
|
|
)
|
|
|
|
|
|
class UserNotificationSettingsRepository:
|
|
def __init__(self, db: Session):
|
|
self.db = db
|
|
|
|
def get(self, user_id: UUID | str) -> Optional[UserNotificationSettings]:
|
|
return (
|
|
self.db.query(UserNotificationSettings)
|
|
.filter(UserNotificationSettings.user_id == as_uuid(user_id))
|
|
.first()
|
|
)
|
|
|
|
def get_or_create(self, user_id: UUID | str) -> UserNotificationSettings:
|
|
settings = self.get(user_id)
|
|
if settings is None:
|
|
settings = UserNotificationSettings(user_id=as_uuid(user_id))
|
|
self.db.add(settings)
|
|
try:
|
|
self.db.commit()
|
|
self.db.refresh(settings)
|
|
except IntegrityError:
|
|
# Two concurrent first-reads (e.g. two tabs) race on the
|
|
# user_id PK; the loser re-reads the row the winner inserted
|
|
# rather than surfacing a 500.
|
|
self.db.rollback()
|
|
settings = self.get(user_id)
|
|
return settings
|
|
|
|
def filter_enabled(self, user_ids: Iterable[UUID | str], field: str) -> Set[UUID]:
|
|
"""Of `user_ids`, return those who want notifications for `field`.
|
|
|
|
One query regardless of recipient count — transfer fans out to a whole
|
|
group and new chats fan out across the org. Users with no row yet fall
|
|
back to the column default rather than being dropped, so nothing has to
|
|
be backfilled.
|
|
"""
|
|
if field not in NOTIFICATION_PREFERENCE_DEFAULTS:
|
|
raise ValueError(f"Unknown notification preference: {field}")
|
|
|
|
candidates = {as_uuid(user_id) for user_id in user_ids if user_id}
|
|
if not candidates:
|
|
return set()
|
|
|
|
rows = (
|
|
self.db.query(
|
|
UserNotificationSettings.user_id,
|
|
getattr(UserNotificationSettings, field),
|
|
)
|
|
.filter(UserNotificationSettings.user_id.in_(candidates))
|
|
.all()
|
|
)
|
|
|
|
stored = {user_id: enabled for user_id, enabled in rows}
|
|
default = NOTIFICATION_PREFERENCE_DEFAULTS[field]
|
|
return {
|
|
user_id for user_id in candidates
|
|
if stored.get(user_id, default)
|
|
}
|