feat: implement server-side cover dimension detection and update badge thresholds

server/controllers/LibraryController.js

@@ -1407,6 +1407,39 @@ class LibraryController {
     })
   }
 
+  /**
+   * POST: /api/libraries/:id/update-cover-dimensions
+   * Recompute cover dimensions for all items in library
+   *
+   * @param {LibraryControllerRequest} req
+   * @param {Response} res
+   */
+  async updateCoverDimensions(req, res) {
+    if (!req.user.isAdminOrUp) {
+      Logger.error(`[LibraryController] Non-admin user "${req.user.username}" attempted to update cover dimensions`)
+      return res.sendStatus(403)
+    }
+
+    const items = await Database.libraryItemModel.findAllExpandedWhere({
+      libraryId: req.library.id
+    })
+
+    let updatedCount = 0
+    for (const item of items) {
+      if (item.media?.coverPath) {
+        // Force coverPath to be seen as changed to trigger beforeSave hook
+        item.media.changed('coverPath', true)
+        await item.media.save()
+        updatedCount++
+      }
+    }
+
+    Logger.info(`[LibraryController] Updated cover dimensions for ${updatedCount} items in library "${req.library.name}"`)
+    res.json({
+      updated: updatedCount
+    })
+  }
+
   /**
    * GET: /api/libraries/:id/podcast-titles
    *

server/controllers/LibraryItemController.js

@@ -601,6 +601,8 @@ class LibraryItemController {
     }
 
     req.libraryItem.media.coverPath = result.cover
+    req.libraryItem.media.coverWidth = result.width
+    req.libraryItem.media.coverHeight = result.height
     req.libraryItem.media.changed('coverPath', true)
     await req.libraryItem.media.save()
 
@@ -634,6 +636,8 @@ class LibraryItemController {
     }
     if (validationResult.updated) {
       req.libraryItem.media.coverPath = validationResult.cover
+      req.libraryItem.media.coverWidth = validationResult.width
+      req.libraryItem.media.coverHeight = validationResult.height
       req.libraryItem.media.changed('coverPath', true)
       await req.libraryItem.media.save()