feat: add solved threads

app/Http/Controllers/ThreadController.php

@@ -97,6 +97,36 @@ class ThreadController extends Controller
         return response()->json(null, 204);
     }
 
+    public function updateSolved(Request $request, Thread $thread): JsonResponse
+    {
+        $user = $request->user();
+        if (!$user) {
+            return response()->json(['message' => 'Unauthorized.'], 401);
+        }
+
+        $isAdmin = $user->roles()->where('name', 'ROLE_ADMIN')->exists();
+        if (!$isAdmin && $thread->user_id !== $user->id) {
+            return response()->json(['message' => 'Not authorized to update solved status.'], 403);
+        }
+
+        $data = $request->validate([
+            'solved' => ['required', 'boolean'],
+        ]);
+
+        $thread->solved = $data['solved'];
+        $thread->save();
+        $thread->refresh();
+        $thread->loadMissing([
+            'user' => fn ($query) => $query
+                ->withCount(['posts', 'threads', 'thanksGiven', 'thanksReceived'])
+                ->with(['rank', 'roles']),
+            'latestPost.user.rank',
+            'latestPost.user.roles',
+        ])->loadCount('posts');
+
+        return response()->json($this->serializeThread($thread));
+    }
+
     private function parseIriId(?string $value): ?int
     {
         if (!$value) {
@@ -120,6 +150,7 @@ class ThreadController extends Controller
             'id' => $thread->id,
             'title' => $thread->title,
             'body' => $thread->body,
+            'solved' => (bool) $thread->solved,
             'forum' => "/api/forums/{$thread->forum_id}",
             'user_id' => $thread->user_id,
             'posts_count' => ($thread->posts_count ?? 0) + 1,