first upload all files

Modules/Product/Http/Controllers/ProductController.php

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+<?php
+
+namespace Modules\Product\Http\Controllers;
+
+use Illuminate\Routing\Controller;
+use Modules\Review\Entities\Review;
+use Modules\Product\Entities\Product;
+use Modules\Product\Events\ProductViewed;
+use Modules\Product\Filters\ProductFilter;
+use Modules\Product\Http\Middleware\SetProductSortOption;
+
+class ProductController extends Controller
+{
+    use ProductSearch;
+
+    /**
+     * Create a new controller instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        $this->middleware(SetProductSortOption::class)->only('index');
+    }
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @param \Modules\Product\Entities\Product $model
+     * @param \Modules\Product\Filters\ProductFilter $productFilter
+     * @return \Illuminate\Http\Response
+     */
+    public function index(Product $model, ProductFilter $productFilter)
+    {
+        if (request()->expectsJson()) {
+            return $this->searchProducts($model, $productFilter);
+        }
+
+        return view('public.products.index');
+    }
+
+    /**
+     * Show the specified resource.
+     *
+     * @param string $slug
+     * @return \Illuminate\Http\Response
+     */
+    public function show($slug)
+    {
+        $product = Product::findBySlug($slug);
+        $relatedProducts = $product->relatedProducts()->forCard()->get();
+        $upSellProducts = $product->upSellProducts()->forCard()->get();
+        $review = $this->getReviewData($product);
+
+        event(new ProductViewed($product));
+
+        return view('public.products.show', compact('product', 'relatedProducts', 'upSellProducts', 'review'));
+    }
+
+    private function getReviewData(Product $product)
+    {
+        if (! setting('reviews_enabled')) {
+            return;
+        }
+
+        return Review::countAndAvgRating($product);
+    }
+}