engagement system

app/Http/Controllers/UpvoteController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Product;
+use App\Models\Upvote;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+
+class UpvoteController extends Controller
+{
+    /**
+     * Toggle upvote for a product.
+     */
+    public function store(Product $product): JsonResponse
+    {
+        $user = Auth::user();
+
+        // Check if user already upvoted
+        $existingUpvote = Upvote::where('user_id', $user->id)
+            ->where('product_id', $product->id)
+            ->first();
+
+        if ($existingUpvote) {
+            // Remove upvote
+            $existingUpvote->delete();
+            $upvoted = false;
+        } else {
+            // Add upvote
+            Upvote::create([
+                'user_id' => $user->id,
+                'product_id' => $product->id,
+            ]);
+            $upvoted = true;
+        }
+
+        // Get fresh upvotes count
+        $upvotesCount = $product->upvotes()->count();
+
+        return response()->json([
+            'success' => true,
+            'upvoted' => $upvoted,
+            'upvotesCount' => $upvotesCount,
+        ]);
+    }
+}