WitShop/app/Http/Controllers/Shop/ProductController.php

<?php

namespace App\Http\Controllers\Shop;

use App\Http\Controllers\Controller;
use App\Models\Category;
use App\Models\Product;
use Illuminate\Http\Request;

class ProductController extends Controller
{
    public function index(Request $request)
    {
        $query = Product::with(['images', 'category'])->where('active', true);

        if ($request->filled('q')) {
            $query->where('name', 'like', '%'.$request->q.'%');
        }
        if ($request->filled('min_price')) {
            $query->where('base_price', '>=', $request->min_price);
        }
        if ($request->filled('max_price')) {
            $query->where('base_price', '<=', $request->max_price);
        }

        $products = $query->orderBy('sort_order')->paginate(16);
        $categories = Category::whereNull('parent_id')->where('active', true)->get();

        return view('shop.products.index', compact('products', 'categories'));
    }

    public function category(string $slug)
    {
        $category = Category::where('slug', $slug)->where('active', true)->firstOrFail();
        $categoryIds = collect([$category->id])->merge($category->children->pluck('id'));
        $products = Product::with(['images'])->where('active', true)->whereIn('category_id', $categoryIds)->orderBy('sort_order')->paginate(16);

        return view('shop.products.index', compact('products', 'category'));
    }

    public function show(string $slug)
    {
        $product = Product::with(['images', 'category', 'variants.attributeValues.attribute'])
            ->where('slug', $slug)
            ->where('active', true)
            ->firstOrFail();

        $related = Product::where('category_id', $product->category_id)
            ->where('id', '!=', $product->id)
            ->where('active', true)
            ->take(4)->get();

        return view('shop.products.show', compact('product', 'related'));
    }
}