Update cached user whenever mediaProgress is removed

server/models/MediaProgress.js

@@ -126,6 +126,16 @@ class MediaProgress extends Model {
       }
     })
 
+    // make sure to call the afterDestroy hook for each instance
+    MediaProgress.addHook('beforeBulkDestroy', (options) => {
+      options.individualHooks = true
+    })
+
+    // update the potentially cached user after destroying the media progress
+    MediaProgress.addHook('afterDestroy', (instance) => {
+      user.mediaProgressRemoved(instance)
+    })
+
     user.hasMany(MediaProgress, {
       onDelete: 'CASCADE'
     })

server/models/User.js

@@ -404,6 +404,14 @@ class User extends Model {
     return count > 0
   }
 
+  static mediaProgressRemoved(mediaProgress) {
+    const cachedUser = userCache.getById(mediaProgress.userId)
+    if (cachedUser) {
+      Logger.debug(`[User] mediaProgressRemoved: ${mediaProgress.id} from user ${cachedUser.id}`)
+      cachedUser.mediaProgresses = cachedUser.mediaProgresses.filter((mp) => mp.id !== mediaProgress.id)
+    }
+  }
+
   /**
    * Initialize model
    * @param {import('../Database').sequelize} sequelize