feat(media): add reference-aware S3 image delivery

lib/content/queries.ts

@@ -8,6 +8,7 @@ import {
   characters,
   dataSources,
   dataSourceVersions,
+  media,
   pageDataSources,
   pages,
   slugAliases,
@@ -307,11 +308,18 @@ export async function getMediaVisibility(mediaId: string): Promise<{
   retained: boolean;
 }> {
   const db = getDb();
-  const referencedBlocks = await db
-    .select({ block: blocks, page: pages, character: characters })
-    .from(blocks)
-    .innerJoin(pages, eq(pages.id, blocks.pageId))
-    .innerJoin(characters, eq(characters.id, pages.characterId));
+  const [referencedBlocks, portraitCharacters, [mediaRecord]] = await Promise.all([
+    db
+      .select({ block: blocks, page: pages, character: characters })
+      .from(blocks)
+      .innerJoin(pages, eq(pages.id, blocks.pageId))
+      .innerJoin(characters, eq(characters.id, pages.characterId)),
+    db
+      .select({ character: characters })
+      .from(characters)
+      .where(eq(characters.portraitMediaId, mediaId)),
+    db.select().from(media).where(eq(media.id, mediaId)).limit(1),
+  ]);
 
   const hasMediaId = (value: unknown): boolean => {
     if (Array.isArray(value)) return value.some(hasMediaId);
@@ -325,9 +333,17 @@ export async function getMediaVisibility(mediaId: string): Promise<{
     hasMediaId(block.config),
   );
   return {
-    public: references.some(
-      ({ page, character }) => page.visible && character.visible,
-    ),
-    retained: references.length > 0,
+    public:
+      references.some(
+        ({ page, character }) => page.visible && character.visible,
+      ) || portraitCharacters.some(({ character }) => character.visible),
+    retained:
+      references.length > 0 ||
+      portraitCharacters.length > 0 ||
+      Boolean(
+        mediaRecord &&
+          (mediaRecord.currentReferenceCount > 0 ||
+            mediaRecord.revisionReferenceCount > 0),
+      ),
   };
 }