update

app/Http/Controllers/Api/ArtworkCommentController.php

@@ -5,8 +5,11 @@ namespace App\Http\Controllers\Api;
 use App\Http\Controllers\Controller;
 use App\Models\Artwork;
 use App\Models\ArtworkComment;
+use App\Models\User;
+use App\Models\UserMention;
+use App\Notifications\ArtworkCommentedNotification;
+use App\Notifications\ArtworkMentionedNotification;
 use App\Services\ContentSanitizer;
-use App\Services\LegacySmileyMapper;
 use App\Support\AvatarUrl;
 use Carbon\Carbon;
 use Illuminate\Http\JsonResponse;
@@ -113,6 +116,7 @@ class ArtworkCommentController extends Controller
         Cache::forget('comments.latest.all.page1');
 
         $comment->load(['user', 'user.profile']);
+        $this->notifyRecipients($artwork, $comment, $request->user(), $parentId ? (int) $parentId : null);
 
         // Record activity event (fire-and-forget; never break the response)
         try {
@@ -204,6 +208,8 @@ class ArtworkCommentController extends Controller
                 'display'     => $user?->username ?? $user?->name ?? 'User',
                 'profile_url' => $user?->username ? '/@' . $user->username : '/profile/' . $userId,
                 'avatar_url'  => AvatarUrl::forUser($userId, $avatarHash, 64),
+                'level'       => (int) ($user?->level ?? 1),
+                'rank'        => (string) ($user?->rank ?? 'Newbie'),
             ],
         ];
 
@@ -217,4 +223,48 @@ class ArtworkCommentController extends Controller
 
         return $data;
     }
+
+    private function notifyRecipients(Artwork $artwork, ArtworkComment $comment, User $actor, ?int $parentId): void
+    {
+        $notifiedUserIds = [];
+        $creatorId = (int) ($artwork->user_id ?? 0);
+
+        if ($creatorId > 0 && $creatorId !== (int) $actor->id) {
+            $creator = User::query()->find($creatorId);
+            if ($creator) {
+                $creator->notify(new ArtworkCommentedNotification($artwork, $comment, $actor));
+                $notifiedUserIds[] = (int) $creator->id;
+            }
+        }
+
+        if ($parentId) {
+            $parentUserId = (int) (ArtworkComment::query()->whereKey($parentId)->value('user_id') ?? 0);
+            if ($parentUserId > 0 && $parentUserId !== (int) $actor->id && ! in_array($parentUserId, $notifiedUserIds, true)) {
+                $parentUser = User::query()->find($parentUserId);
+                if ($parentUser) {
+                    $parentUser->notify(new ArtworkCommentedNotification($artwork, $comment, $actor));
+                    $notifiedUserIds[] = (int) $parentUser->id;
+                }
+            }
+        }
+
+        User::query()
+            ->whereIn(
+                'id',
+                UserMention::query()
+                    ->where('comment_id', (int) $comment->id)
+                    ->pluck('mentioned_user_id')
+                    ->map(fn ($id) => (int) $id)
+                    ->unique()
+                    ->all()
+            )
+            ->get()
+            ->each(function (User $mentionedUser) use ($artwork, $comment, $actor): void {
+                if ((int) $mentionedUser->id === (int) $actor->id) {
+                    return;
+                }
+
+                $mentionedUser->notify(new ArtworkMentionedNotification($artwork, $comment, $actor));
+            });
+    }
 }