feat: next level xp

app/Models/User.php

@@ -52,6 +52,15 @@ class User extends Authenticatable implements HasName, FilamentUser
         'level_id'
     ];
 
+    /**
+     * The accessors to append to the model's array form.
+     *
+     * @var array
+     */
+    protected $appends = [
+        'next_level_xp',
+    ];
+
     /**
      * The attributes that should be hidden for serialization.
      *
@@ -93,12 +102,18 @@ class User extends Authenticatable implements HasName, FilamentUser
         $level = Level::where('xpThreshold', '<=', $this->xp)
             ->orderBy('xpThreshold', 'desc')
             ->first();
-
         if ($level && $this->level_id !== $level->id) {
             $this->level_id = $level->id;
             $this->save();
         }
     }
+
+    public function getNextLevelXpAttribute(): ?int
+    {
+        return Level::where('xpThreshold', '>', $this->xp)
+            ->orderBy('xpThreshold', 'asc')
+            ->value('xpThreshold');
+    }
     public function getFilamentName(): string
     {
         return $this->username;