FindProductDuplicates.php

<?php

namespace App\Console\Commands;

use App\Models\Product;
use App\Models\ProductVariant;
use Illuminate\Console\Command;

class FindProductDuplicates extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'find-product-duplicates';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        // Find duplicates
        $products = Product::orderBy('id')->get();

        foreach ($products as $product) {
            if ($duplicateProduct = $this->findDuplicate($product)) {
                if ($duplicateProduct->title != $product->title) {
                    $this->info($product->title . '(#'.$product->id.')' . ' :: ' . $duplicateProduct->title . '(#'.$duplicateProduct->id.')');
                }
            }
        }

        return 0;
    }

    protected function findDuplicate($product)
    {
        if ($product->uses_variants) {
            foreach ($product->variants as $variant) {
                if (empty($variant->sku)) {
                    continue;
                }

                $duplicateVariant = ProductVariant::where('product_id', '!=', $product->id)
                    ->where('sku', $variant->sku)
                    ->first();

                if ($duplicateVariant) {
                    return $duplicateVariant->product;
                }
            }
        } else {
            if (! empty($product->sku)) {
                $duplicateProduct = Product::where('id', '!=', $product->id)
                    ->where('sku', $product->sku)
                    ->first();

                if ($duplicateProduct) {
                    return $duplicateProduct;
                }
            }
        }

        return null;
    }
}