Adding the new rewrite

app/routes/api_alerts.py

@@ -0,0 +1,62 @@
+"""Alert history and acknowledgement endpoints."""
+import time
+
+from fastapi import APIRouter, Depends, Query
+
+from ..auth import require_session, require_session_and_csrf
+from ..storage import get_redis
+
+router = APIRouter(prefix="/api/alerts")
+
+
+@router.get("")
+async def list_alerts(
+    ups: str | None = Query(None),
+    severity: str | None = Query(None),
+    days: int = Query(30, ge=1, le=90),
+    user=Depends(require_session),
+):
+    r = get_redis()
+    raw = r.lrange("ups:alerts:history:all", 0, -1)
+    cutoff = int(time.time()) - days * 86400
+    out = []
+    for item in raw:
+        parts = item.split("|", 5)
+        if len(parts) < 5:
+            continue
+        try:
+            ts = int(parts[0])
+        except ValueError:
+            continue
+        if ts < cutoff:
+            continue
+        row = {
+            "ts": ts,
+            "severity": parts[1],
+            "ups": parts[2],
+            "code": parts[3],
+            "message": parts[4],
+            "id": parts[5] if len(parts) > 5 else "",
+        }
+        if ups and row["ups"] != ups:
+            continue
+        if severity and row["severity"] != severity.upper():
+            continue
+        ack = r.get(f"ups:alerts:ack:{row['id']}")
+        row["acked_ts"] = int(ack) if ack else None
+        out.append(row)
+    return out
+
+
+@router.get("/active")
+async def list_active(user=Depends(require_session)):
+    """Active alerts = history entries not yet acknowledged, most recent first."""
+    all_alerts = await list_alerts(days=7, user=user)
+    return [a for a in all_alerts if not a.get("acked_ts")]
+
+
+@router.post("/{alert_id}/ack")
+async def ack_alert(alert_id: str, user=Depends(require_session_and_csrf)):
+    r = get_redis()
+    r.set(f"ups:alerts:ack:{alert_id}", int(time.time()), ex=30 * 86400)
+    return {"message": "acknowledged"}