feat(up): capture follower snapshots at ingest and backfill history

reaction_board/services/folder_sync.py

@@ -21,6 +21,7 @@ from typing import Any
 
 from ..config import AppConfig, ConfigStore, FolderConfig
 from ..repository import Repository
+from .up_profile import UpProfileService
 
 CAPACITY_WARN = 950
 
@@ -61,6 +62,8 @@ class SyncSummary:
     finished_at: int = 0
     folders: list[FolderSyncResult] = field(default_factory=list)
     blacklist_seeded: int = 0
+    followers_updated: int = 0
+    followers_failed: int = 0
 
     @property
     def added(self) -> int:
@@ -100,6 +103,8 @@ class SyncSummary:
             "refreshed": self.refreshed,
             "missing": self.missing,
             "blacklist_seeded": self.blacklist_seeded,
+            "followers_updated": self.followers_updated,
+            "followers_failed": self.followers_failed,
             "folders": [f.as_dict() for f in self.folders],
             "errors": self.errors,
             "warnings": self.warnings,
@@ -119,6 +124,8 @@ class FolderSyncService:
         logger=None,
         capacity_warn: int = CAPACITY_WARN,
         allow_empty_folders: bool = False,
+        up_profile_service: UpProfileService | None = None,
+        capture_followers: bool = True,
     ) -> None:
         if client is None and client_provider is None:
             raise ValueError("必须提供 client 或 client_provider")
@@ -130,6 +137,10 @@ class FolderSyncService:
         self.logger = logger
         self.capacity_warn = capacity_warn
         self.allow_empty_folders = allow_empty_folders
+        self.capture_followers = capture_followers
+        self.up_profile = up_profile_service or UpProfileService(
+            repository, self._client, clock=clock, logger=logger
+        )
 
     def _client(self):
         if self.client_provider is not None:
@@ -189,6 +200,26 @@ class FolderSyncService:
                     )
             summary.folders.append(result)
 
+        if self.capture_followers:
+            try:
+                missing = self.repo.up_mids_missing_follower()
+                if missing:
+                    capture = self.up_profile.capture(
+                        [int(row["up_mid"]) for row in missing],
+                        names={
+                            int(row["up_mid"]): str(row.get("up_name") or "")
+                            for row in missing
+                        },
+                        live_since=summary.started_at - 3600,
+                    )
+                    summary.followers_updated = capture.updated_videos
+                    summary.followers_failed = capture.failed
+            except Exception as exc:  # noqa: BLE001  粉丝采集失败不影响收藏夹同步
+                summary.followers_failed += 1
+                self._log(
+                    "warning", "folder_sync.followers_failed", error=str(exc)
+                )
+
         summary.finished_at = self._now()
         self._log(
             "info" if summary.ok else "error",
@@ -200,7 +231,7 @@ class FolderSyncService:
             errors=len(summary.errors),
             elapsed=max(0, summary.finished_at - summary.started_at),
         )
-        if summary.added or summary.removed or summary.refreshed:
+        if summary.added or summary.removed or summary.refreshed or summary.followers_updated:
             self.repo.bump_cache_version("videos")
         return summary