add Database.getLibraryItemCoverPath

server/Database.js

@@ -808,6 +808,28 @@ class Database {
       return `${normalizedColumn} LIKE ${pattern}`
     }
   }
+
+  async getLibraryItemCoverPath(libraryItemId) {
+    const libraryItem = await this.libraryItemModel.findByPk(libraryItemId, {
+      attributes: ['id', 'mediaType', 'mediaId', 'libraryId'],
+      include: [
+        {
+          model: this.bookModel,
+          attributes: ['id', 'coverPath']
+        },
+        {
+          model: this.podcastModel,
+          attributes: ['id', 'coverPath']
+        }
+      ]
+    })
+    if (!libraryItem) {
+      Logger.warn(`[Database] getCover: Library item "${libraryItemId}" does not exist`)
+      return null
+    }
+
+    return libraryItem.media.coverPath
+  }
 }
 
 module.exports = new Database()