Feat: Adding command for backfilling all product skus

src/Command/BackfillMissingSkusCommand.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Modules\Core\Command;
+
+use Illuminate\Console\Command;
+use Lunar\Models\ProductVariant;
+
+/**
+ * One-off backfill for variants the Shopify import left with a blank SKU —
+ * not an importer bug, the source CSV rows genuinely had no `Variant SKU`
+ * value (see Modules\MigrateImport\Shopify\ShopifyExportImporter) — so
+ * this synthesizes one instead of re-running the import. Format is
+ * "SKU-P{product_id}-V{variant_id}": deterministic and guaranteed unique
+ * without a uniqueness check, since product_id/variant_id already are.
+ * Only variants with a null `sku` are touched.
+ */
+class BackfillMissingSkusCommand extends Command
+{
+    protected $signature = 'boboko:catalog:backfill-skus {--dry-run : List what would change without writing}';
+
+    protected $description = 'Generate a SKU for every product variant that is missing one';
+
+    public function handle(): void
+    {
+        $dryRun = (bool) $this->option('dry-run');
+
+        $query = ProductVariant::query()->whereNull('sku');
+        $total = $query->count();
+
+        if ($total === 0) {
+            $this->info('No variants are missing a SKU.');
+
+            return;
+        }
+
+        $this->info(($dryRun ? '[dry-run] ' : '') . "Backfilling SKUs for {$total} variant(s)...");
+
+        $bar = $this->output->createProgressBar($total);
+        $bar->start();
+
+        $query->chunkById(500, function ($variants) use ($dryRun, $bar) {
+            foreach ($variants as $variant) {
+                $sku = "SKU-P{$variant->product_id}-V{$variant->id}";
+
+                if ($dryRun) {
+                    $this->newLine();
+                    $this->line("Variant {$variant->id}: sku => {$sku}");
+                } else {
+                    $variant->update(['sku' => $sku]);
+                }
+
+                $bar->advance();
+            }
+        });
+
+        $bar->finish();
+        $this->newLine();
+        $this->info($dryRun ? 'Dry run complete — no changes were written.' : 'Done.');
+    }
+}

src/Providers/CoreServiceProvider.php

@@ -5,6 +5,7 @@ namespace Modules\Core\Providers;
 use Illuminate\Support\Facades\Blade;
 use Illuminate\Support\ServiceProvider;
 use Modules\Core\Command\AnonymizeCommand;
+use Modules\Core\Command\BackfillMissingSkusCommand;
 use Modules\Core\Command\ExportCleanupCommand;
 use Modules\Core\Command\ExportCommand;
 use Modules\Core\Command\ImportCommand;
@@ -36,7 +37,7 @@ class CoreServiceProvider extends ServiceProvider
         ], 'core-assets');
 
         if ($this->app->runningInConsole()) {
-            $this->commands([AnonymizeCommand::class, ExportCommand::class, ExportCleanupCommand::class, ImportCommand::class, MigrateImportCommand::class, TuneProductSearchCommand::class]);
+            $this->commands([AnonymizeCommand::class, ExportCommand::class, ExportCleanupCommand::class, ImportCommand::class, MigrateImportCommand::class, TuneProductSearchCommand::class, BackfillMissingSkusCommand::class]);
 
             //Overriding lunar:install
             $this->app->booted(fn () => $this->commands([InstallLunarCommand::class]));