rmi-backend/app/domain/alerts/repository.py

60 lines
2 KiB
Python

"""Repository — async Redis storage for alert subscriptions.
Storage layout (matches legacy for cutover):
Hash key: "rmi:alerts"
Field: alert id (e.g. "alert:1700000000")
Value: JSON-encoded AlertSubscription
This is a thin async wrapper. No business logic. Pure data access.
"""
from __future__ import annotations
from app.core.logging import get_logger
from app.core.redis import get_redis_async
from app.domain.alerts.models import AlertSubscription
log = get_logger(__name__)
HASH_KEY = "rmi:alerts"
class AlertRepository:
"""Async Redis-backed subscription storage."""
def __init__(self) -> None:
self._key = HASH_KEY
async def list_all(self) -> list[AlertSubscription]:
r = get_redis_async()
raw: dict[str, str] = await r.hgetall(self._key) or {}
out: list[AlertSubscription] = []
for value in raw.values():
try:
out.append(AlertSubscription.model_validate_json(value))
except Exception as e:
log.warning("alert_repo_corrupt_record", error=str(e))
return out
async def get(self, alert_id: str) -> AlertSubscription | None:
r = get_redis_async()
raw: str | None = await r.hget(self._key, alert_id)
if raw is None:
return None
try:
return AlertSubscription.model_validate_json(raw)
except Exception as e:
log.warning("alert_repo_corrupt_record", alert_id=alert_id, error=str(e))
return None
async def create(self, sub: AlertSubscription) -> None:
r = get_redis_async()
await r.hset(self._key, sub.id, sub.model_dump_json())
async def delete(self, alert_id: str) -> bool:
r = get_redis_async()
removed: int = await r.hdel(self._key, alert_id)
return removed > 0
async def list_by_token(self, token_address: str) -> list[AlertSubscription]:
all_subs = await self.list_all()
return [s for s in all_subs if s.token_address == token_address]