feat: add paged NAS photo browser with metadata filters and previews

pigway_frame_flow/providers/photo_sources.py

@@ -88,6 +88,9 @@ class PhotoSources:
         self.db, self.settings, self.assets = db, settings, assets
         self.cache = {}
         self.api_items = {}
+        from pigway_frame_flow.providers.source_browser import SourceBrowser
+
+        self.browser = SourceBrowser(self)
         self.synology = SynologyPhotos(settings)
         # Register provider secrets before request IDs or errors can be reflected.
         for row in self.list():
@@ -584,7 +587,16 @@ class PhotoSources:
 
     def read(self, source_id, item_id=None, *, target_size=(1200, 1600)):
         source = self.get(source_id)
-        items = self.catalog(source_id, target_size=target_size)
+        browsed = (
+            self.browser.cached(source_id, item_id)
+            if item_id and source.kind == "synology-photos"
+            else None
+        )
+        items = (
+            [browsed[1]]
+            if browsed
+            else self.catalog(source_id, target_size=target_size)
+        )
         if not item_id:
             items = eligible(self.db, source_id, items)
         if not items:
@@ -641,13 +653,18 @@ class PhotoSources:
                 raise FlowError(E.NOT_FOUND, "Photo is unavailable", 404) from None
         elif source.kind == "synology-photos":
             data = self.synology.download(
-                self.api_items[source_id][item["id"]], space=source.people_space
+                browsed[2] if browsed else self.api_items[source_id][item["id"]],
+                space=source.people_space,
             )
             if source.folder_caption:
                 caption = dict(item.get("caption") or {})
                 try:
                     caption["people"] = " & ".join(
-                        self.synology.item_people(item["id"], space=source.people_space)
+                        [p["name"] for p in item.get("people", []) if p["name"]]
+                        if browsed
+                        else self.synology.item_people(
+                            item["id"], space=source.people_space
+                        )
                     )
                 except FlowError:
                     # Optional labels must not prevent displaying a valid photo.