feat: add foreign key constraints and metrics for blockchain node

apps/pool-hub/src/poolhub/repositories/feedback_repository.py

@@ -0,0 +1,81 @@
+from __future__ import annotations
+
+import datetime as dt
+import json
+import logging
+from typing import Iterable, List, Optional
+from uuid import UUID
+
+from redis.asyncio import Redis
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from ..models import Feedback
+from ..storage.redis_keys import RedisKeys
+
+logger = logging.getLogger(__name__)
+
+
+class FeedbackRepository:
+    """Persists coordinator feedback and emits Redis notifications."""
+
+    def __init__(self, session: AsyncSession, redis: Redis) -> None:
+        self._session = session
+        self._redis = redis
+
+    async def add_feedback(
+        self,
+        *,
+        job_id: str,
+        miner_id: str,
+        outcome: str,
+        latency_ms: Optional[int] = None,
+        fail_code: Optional[str] = None,
+        tokens_spent: Optional[float] = None,
+    ) -> Feedback:
+        feedback = Feedback(
+            job_id=job_id,
+            miner_id=miner_id,
+            outcome=outcome,
+            latency_ms=latency_ms,
+            fail_code=fail_code,
+            tokens_spent=tokens_spent,
+            created_at=dt.datetime.utcnow(),
+        )
+        self._session.add(feedback)
+        await self._session.flush()
+
+        payload = {
+            "job_id": job_id,
+            "miner_id": miner_id,
+            "outcome": outcome,
+            "latency_ms": latency_ms,
+            "fail_code": fail_code,
+            "tokens_spent": tokens_spent,
+            "created_at": feedback.created_at.isoformat() if feedback.created_at else None,
+        }
+        try:
+            await self._redis.publish(RedisKeys.feedback_channel(), json.dumps(payload))
+        except Exception as exc:  # pragma: no cover - defensive
+            logger.warning("Failed to publish feedback event for job %s: %s", job_id, exc)
+        return feedback
+
+    async def list_feedback_for_miner(self, miner_id: str, limit: int = 50) -> List[Feedback]:
+        stmt = (
+            select(Feedback)
+            .where(Feedback.miner_id == miner_id)
+            .order_by(Feedback.created_at.desc())
+            .limit(limit)
+        )
+        result = await self._session.execute(stmt)
+        return list(result.scalars().all())
+
+    async def list_feedback_for_job(self, job_id: str, limit: int = 50) -> List[Feedback]:
+        stmt = (
+            select(Feedback)
+            .where(Feedback.job_id == job_id)
+            .order_by(Feedback.created_at.desc())
+            .limit(limit)
+        )
+        result = await self._session.execute(stmt)
+        return list(result.scalars().all())