Implement Monlet MVP stack and UI updates

server/monlet_server/api/outbox.py

@@ -0,0 +1,58 @@
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy import and_, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from ..cursors import decode, decode_datetime, encode
+from ..db import get_session
+from ..models import NotificationOutbox
+from ..schemas import NotificationOutboxItem, OutboxPage
+
+router = APIRouter()
+
+
+@router.get("/notifiers/outbox", response_model=OutboxPage)
+async def list_outbox(
+    state: str | None = Query(default=None),
+    cursor: str | None = Query(default=None, max_length=512),
+    limit: int = Query(default=100, ge=1, le=500),
+    session: AsyncSession = Depends(get_session),
+) -> OutboxPage:
+    stmt = select(NotificationOutbox).order_by(
+        NotificationOutbox.created_at.desc(), NotificationOutbox.id.desc()
+    )
+    if state is not None:
+        stmt = stmt.where(NotificationOutbox.state == state)
+    if cursor is not None:
+        ts_str, last_id = decode(cursor, 2)
+        ts = decode_datetime(ts_str)
+        stmt = stmt.where(
+            or_(
+                NotificationOutbox.created_at < ts,
+                and_(
+                    NotificationOutbox.created_at == ts,
+                    NotificationOutbox.id < last_id,
+                ),
+            )
+        )
+    rows = (await session.execute(stmt.limit(limit + 1))).scalars().all()
+    next_cursor = None
+    if len(rows) > limit:
+        rows = rows[:limit]
+        next_cursor = encode(rows[-1].created_at.isoformat(), rows[-1].id)
+    return OutboxPage(
+        items=[
+            NotificationOutboxItem(
+                id=str(r.id),
+                notifier=r.notifier,
+                state=r.state,
+                incident_id=str(r.incident_id),
+                event_type=r.event_type,
+                attempts=r.attempts,
+                next_attempt_at=r.next_attempt_at,
+                last_error=r.last_error,
+                updated_at=r.updated_at,
+            )
+            for r in rows
+        ],
+        next_cursor=next_cursor,
+    )