Replace sync_state batch 5-tuple with a SyncRow NamedTuple

haiku_rag_slim/haiku/rag/ingester/pollers/base.py

@@ -5,7 +5,7 @@ from datetime import UTC, datetime
 
 from haiku.rag.config import SourceConfig
 from haiku.rag.ingester.pollers.circuit_breaker import CircuitBreaker
-from haiku.rag.ingester.queue.models import JobOp
+from haiku.rag.ingester.queue.models import JobOp, SyncRow
 from haiku.rag.ingester.queue.repository import JobRepo, SyncStateRepo
 from haiku.rag.ingester.sources.base import (
     Source,
@@ -129,7 +129,7 @@ class BasePoller:
                     SourceEventKind.DELETE: 0,
                     SourceEventKind.UNCHANGED: 0,
                 }
-                sync_batch: list[tuple[str, str, str | None, str | None, bool]] = []
+                sync_batch: list[SyncRow] = []
                 async for event in self.source.discover(
                     since=revisions, known_uris=known
                 ):
@@ -168,7 +168,7 @@ class BasePoller:
     async def _handle_event(
         self,
         event: SourceEvent,
-        sync_batch: list[tuple[str, str, str | None, str | None, bool]],
+        sync_batch: list[SyncRow],
     ) -> None:
         if event.kind is SourceEventKind.UPSERT:
             await self._jobs.enqueue(
@@ -182,11 +182,11 @@ class BasePoller:
             # Don't write revision to sync_state here — the worker writes it
             # after a successful ingestion. last_seen_at gets bumped to keep
             # orphan detection accurate.
-            sync_batch.append((event.source_id, event.uri, None, None, False))
+            sync_batch.append(SyncRow(event.source_id, event.uri, None, None, False))
         elif event.kind is SourceEventKind.UNCHANGED:
             # Touch last_seen_at without changing the stored revision.
             sync_batch.append(
-                (event.source_id, event.uri, event.revision, None, False)
+                SyncRow(event.source_id, event.uri, event.revision, None, False)
             )
         elif event.kind is SourceEventKind.DELETE:
             if not self.config.delete_orphans:

haiku_rag_slim/haiku/rag/ingester/queue/models.py

@@ -1,5 +1,6 @@
 from datetime import datetime
 from enum import StrEnum
+from typing import NamedTuple
 
 from pydantic import BaseModel
 
@@ -44,3 +45,14 @@ class SyncStateRow(BaseModel):
     content_hash: str | None = None
     last_seen_at: datetime
     last_ingested_at: datetime | None = None
+
+
+class SyncRow(NamedTuple):
+    """A pending sync_state write collected during a sweep and flushed in one
+    transaction by SyncStateRepo.batch_upsert()."""
+
+    source_id: str
+    uri: str
+    revision: str | None
+    content_hash: str | None
+    ingested: bool

haiku_rag_slim/haiku/rag/ingester/queue/repository.py

@@ -5,7 +5,13 @@ from datetime import UTC, datetime, timedelta
 
 import aiosqlite
 
-from haiku.rag.ingester.queue.models import Job, JobOp, JobStatus, SyncStateRow
+from haiku.rag.ingester.queue.models import (
+    Job,
+    JobOp,
+    JobStatus,
+    SyncRow,
+    SyncStateRow,
+)
 
 
 def _utcnow_iso() -> str:
@@ -504,12 +510,8 @@ class SyncStateRepo:
                 pass
             await self._conn.commit()
 
-    async def batch_upsert(
-        self,
-        rows: list[tuple[str, str, str | None, str | None, bool]],
-    ) -> None:
-        """Batch insert-or-update sync_state rows in a single transaction.
-        Each tuple is (source_id, uri, revision, content_hash, ingested)."""
+    async def batch_upsert(self, rows: list[SyncRow]) -> None:
+        """Batch insert-or-update sync_state rows in a single transaction."""
         if not rows:
             return
         now = _utcnow_iso()

tests/ingester/test_queue.py

@@ -5,7 +5,7 @@ import aiosqlite
 import pytest
 
 from haiku.rag.ingester.queue.migrations import apply_migrations, open_queue
-from haiku.rag.ingester.queue.models import JobOp, JobStatus
+from haiku.rag.ingester.queue.models import JobOp, JobStatus, SyncRow
 from haiku.rag.ingester.queue.repository import JobRepo, SyncStateRepo
 
 
@@ -839,11 +839,13 @@ async def test_sync_state_upsert_replaces_revision_when_provided(sync):
 @pytest.mark.asyncio
 async def test_sync_state_batch_upsert_inserts_multiple_rows(sync):
     """batch_upsert writes many rows in a single transaction."""
-    await sync.batch_upsert([
-        ("s", "u1", "rev1", "hash1", False),
-        ("s", "u2", "rev2", "hash2", False),
-        ("s", "u3", "rev3", None, True),
-    ])
+    await sync.batch_upsert(
+        [
+            SyncRow("s", "u1", "rev1", "hash1", False),
+            SyncRow("s", "u2", "rev2", "hash2", False),
+            SyncRow("s", "u3", "rev3", None, True),
+        ]
+    )
     assert await sync.get_revision_snapshot("s") == {
         "u1": "rev1",
         "u2": "rev2",
@@ -858,9 +860,11 @@ async def test_sync_state_batch_upsert_inserts_multiple_rows(sync):
 async def test_sync_state_batch_upsert_updates_existing(sync):
     """batch_upsert applies ON CONFLICT update semantics like upsert()."""
     await sync.upsert("s", "u1", revision="old", content_hash="old-hash")
-    await sync.batch_upsert([
-        ("s", "u1", "new", "new-hash", False),
-    ])
+    await sync.batch_upsert(
+        [
+            SyncRow("s", "u1", "new", "new-hash", False),
+        ]
+    )
     row = await sync.get_row("s", "u1")
     assert row is not None
     assert row.revision == "new"
@@ -871,9 +875,11 @@ async def test_sync_state_batch_upsert_updates_existing(sync):
 async def test_sync_state_batch_upsert_preserves_revision_when_none(sync):
     """batch_upsert with revision=None leaves existing revision in place."""
     await sync.upsert("s", "u1", revision="keep", content_hash="keep-hash")
-    await sync.batch_upsert([
-        ("s", "u1", None, None, False),
-    ])
+    await sync.batch_upsert(
+        [
+            SyncRow("s", "u1", None, None, False),
+        ]
+    )
     row = await sync.get_row("s", "u1")
     assert row is not None
     assert row.revision == "keep"