first upload all files

Themes/Storefront/Http/Controllers/ProductIndexController.php

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+<?php
+
+namespace Themes\Storefront\Http\Controllers;
+
+use Illuminate\Support\Collection;
+use Modules\Product\RecentlyViewed;
+use Modules\Product\Entities\Product;
+use Modules\Category\Entities\Category;
+
+class ProductIndexController
+{
+    private $recentlyViewed;
+
+    public function __construct(RecentlyViewed $recentlyViewed)
+    {
+        $this->recentlyViewed = $recentlyViewed;
+    }
+
+    protected function getProducts($settingPrefix)
+    {
+        $type = setting("{$settingPrefix}_product_type", 'custom_products');
+        $limit = setting("{$settingPrefix}_products_limit");
+
+        if ($type === 'category_products') {
+            return $this->categoryProducts($settingPrefix,$limit);
+        }
+
+        if ($type === 'recently_viewed_products') {
+            return $this->recentlyViewedProducts($limit);
+        }
+
+        return Product::forCard()
+            ->when($type === 'latest_products', $this->latestProductsCallback($limit))
+            ->when($type === 'custom_products', $this->customProductsCallback($settingPrefix))
+            ->get()
+            ->map
+            ->clean();
+    }
+
+    private function categoryProducts($settingPrefix,$limit)
+    {
+        return Category::findOrNew(setting("{$settingPrefix}_category_id"))
+            ->products()
+            ->forCard()
+            ->take($limit)
+            ->get();
+    }
+
+    private function recentlyViewedProducts($limit)
+    {
+        return collect($this->recentlyViewed->products())
+            ->reverse()
+            ->when(! is_null($limit), function (Collection $products) use ($limit) {
+                return $products->take($limit);
+            })
+            ->values();
+    }
+
+    private function latestProductsCallback($limit)
+    {
+        return function ($query) use ($limit) {
+            $query->latest()
+                ->when(! is_null($limit), function ($q) use ($limit) {
+                    $q->limit($limit);
+                });
+        };
+    }
+
+    private function customProductsCallback($settingPrefix)
+    {
+        return function ($query) use ($settingPrefix) {
+            $productIds = setting("{$settingPrefix}_products", []);
+
+            $query->whereIn('id', $productIds)
+                ->when(! empty($productIds), function ($q) use ($productIds) {
+                    $productIdsString = collect($productIds)->filter()->implode(',');
+
+                    $q->orderByRaw("FIELD(id, {$productIdsString})");
+                });
+        };
+    }
+}