Add SKU/GTIN fields, live barcode preview, and Shopify price import

- Add SKU and GTIN fields to product variant repeater
- Render EAN/UPC barcode live from GTIN input (picqer/php-barcode-generator)
- Pull variant price from Shopify API instead of defaulting to 0
- Sync sku/gtin through EditProduct and CreateProduct save logic

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Console/Commands/ShopifyImport.php

@@ -71,7 +71,7 @@ class ShopifyImport extends Command
 
                 $size = ProductSize::firstOrCreate(
                     ['product_id' => $product->id, 'packing_id' => $packing->id],
-                    ['sku' => $variant['sku'], 'shopify_variant_id' => $variant['id'], 'price' => 0],
+                    ['sku' => $variant['sku'], 'shopify_variant_id' => $variant['id'], 'price' => $variant['price']],
                 );
 
                 // Bestehende Size ohne Variant-ID nachträglich verknüpfen

app/Filament/User/Resources/ProductResource.php

@@ -8,13 +8,17 @@ use App\Models\Product;
 use Filament\Forms;
 use Filament\Forms\Form;
 use Filament\Forms\Components\FileUpload;
+use Filament\Forms\Components\Placeholder;
 use Filament\Forms\Components\Repeater;
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\TextInput;
+use Filament\Forms\Get;
 use Filament\Resources\Resource;
 use Filament\Tables;
 use Filament\Tables\Table;
+use Illuminate\Support\HtmlString;
 use App\Models\Packing;
+use Picqer\Barcode\BarcodeGeneratorSVG;
 
 class ProductResource extends Resource {
     protected static ?string $model = Product::class;
@@ -51,10 +55,6 @@ class ProductResource extends Resource {
                     ->required(),
                 Repeater::make('sizes')
                     ->schema([
-                        TextInput::make('gtin')
-                            ->label('GTIN'),
-                        TextInput::make('description')
-                            ->label('Bezeichnung'),
                         Select::make('packing_id')
                             ->label('Verpackung')
                             ->options(function () {
@@ -68,25 +68,48 @@ class ProductResource extends Resource {
                             ->label('Preis (in EUR)')
                             ->numeric()
                             ->required(),
+                        TextInput::make('sku')
+                            ->label('SKU'),
+                        TextInput::make('gtin')
+                            ->label('GTIN')
+                            ->live(debounce: 500),
+                        Placeholder::make('barcode_preview')
+                            ->label('Barcode')
+                            ->content(function (Get $get): HtmlString {
+                                $gtin = trim((string) $get('gtin'));
+                                if (empty($gtin)) {
+                                    return new HtmlString('');
+                                }
+                                $type = match (strlen($gtin)) {
+                                    8  => BarcodeGeneratorSVG::TYPE_EAN_8,
+                                    13 => BarcodeGeneratorSVG::TYPE_EAN_13,
+                                    12 => BarcodeGeneratorSVG::TYPE_UPC_A,
+                                    14 => BarcodeGeneratorSVG::TYPE_CODABAR,
+                                    default => BarcodeGeneratorSVG::TYPE_CODE_128,
+                                };
+                                $svg = (new BarcodeGeneratorSVG())->getBarcode($gtin, $type, 2, 60);
+                                return new HtmlString($svg);
+                            })
+                            ->columnSpanFull()
+                            ->visible(fn (Get $get) => filled($get('gtin'))),
                     ])
                     ->label('Größen & Preise')
                     ->columns(2)
                     ->addActionLabel('Option hinzufügen')
                     ->afterStateHydrated(function ($state, $set, $record) {
                         if ($record) {
-                            // Load the spices relationship with pivot data
                             $record->load('sizes');
 
-                            // Map the spices and their pivot data to the format the repeater expects
                             $sizesData = $record->sizes->map(function ($size) {
                                 return [
                                     'packing_id'  => $size->id,
                                     'price'       => $size->pivot->price,
                                     'description' => $size->pivot->description,
+                                    'sku'         => $size->pivot->sku,
+                                    'gtin'        => $size->pivot->gtin,
                                 ];
                             })->toArray();
 
-                            // Set the state for the repeater field to the mapped spices data
                             $set('sizes', $sizesData);
                         }
                         return $state;

app/Filament/User/Resources/ProductResource/Pages/CreateProduct.php

@@ -19,8 +19,10 @@ class CreateProduct extends CreateRecord
             ProductSize::create([
                 'product_id'  => $record->id,
                 'packing_id'  => $size['packing_id'],
-                'description' => $size['description'],
+                'description' => $size['description'] ?? null,
                 'price'       => $size['price'],
+                'sku'         => $size['sku'] ?? null,
+                'gtin'        => $size['gtin'] ?? null,
             ]);
         }
         return $record;

app/Filament/User/Resources/ProductResource/Pages/EditProduct.php

@@ -27,7 +27,12 @@ class EditProduct extends EditRecord
         $sizes = collect($this->data['sizes'] ?? [])
             ->mapWithKeys(function ($size) {
                 return [
-                    $size['packing_id'] => ['description' => $size['description'], 'price' =>$size['price']],
+                    $size['packing_id'] => [
+                        'description' => $size['description'] ?? null,
+                        'price'       => $size['price'],
+                        'sku'         => $size['sku'] ?? null,
+                        'gtin'        => $size['gtin'] ?? null,
+                    ],
                 ];
             })
             ->toArray();

app/Models/Product.php

@@ -22,8 +22,7 @@ class Product extends Model
     public function sizes()
     {
         return $this->belongsToMany(Packing::class, 'products_sizes')
-                    ->withPivot('price')
+                    ->withPivot('price', 'description', 'sku', 'gtin')
-                    ->withPivot('description')
                     ->withTimestamps();
     }
 

app/Services/ShopifyService.php

@@ -53,6 +53,7 @@ class ShopifyService
                     $variants[] = [
                         'id'                 => (string) $variant['id'],
                         'sku'                => $variant['sku'] ?? '',
+                        'price'              => (float) ($variant['price'] ?? 0),
                         'inventory_quantity'  => (int) ($variant['inventory_quantity'] ?? 0),
                         'product_title'      => $product['title'],
                         'option1'            => $variant['option1'] ?? '',

composer.json

@@ -11,6 +11,7 @@
         "laravel/framework": "^11.9",
         "laravel/tinker": "^2.9",
         "leandrocfe/filament-apex-charts": "^3.1",
+        "picqer/php-barcode-generator": "^3.3",
         "spatie/laravel-activitylog": "^4.9",
         "z3d0x/filament-logger": "^0.7.2"
     },

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a582ff19a1af282fb47d6332accfd2d9",
+    "content-hash": "45cc716f18a426dc09aceb48f3a350d8",
     "packages": [
         {
             "name": "anourvalar/eloquent-serialize",
@@ -4055,6 +4055,86 @@
             ],
             "time": "2026-08-24T00:54:40+00:00"
         },
+        {
+            "name": "picqer/php-barcode-generator",
+            "version": "v3.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/picqer/php-barcode-generator.git",
+                "reference": "6beada2a30623832ff41b8c7d307c169736b8552"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/picqer/php-barcode-generator/zipball/6beada2a30623832ff41b8c7d307c169736b8552",
+                "reference": "6beada2a30623832ff41b8c7d307c169736b8552",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^8.2"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1.10",
+                "phpunit/phpunit": "^9.5"
+            },
+            "suggest": {
+                "ext-bcmath": "Barcode IMB (Intelligent Mail Barcode) needs bcmath extension",
+                "ext-gd": "For JPG and PNG generators, GD or Imagick is required",
+                "ext-imagick": "For JPG and PNG generators, GD or Imagick is required"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Picqer\\Barcode\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Casper Bakker",
+                    "email": "info@picqer.com",
+                    "homepage": "https://picqer.com"
+                },
+                {
+                    "name": "Nicola Asuni",
+                    "email": "info@tecnick.com",
+                    "homepage": "http://nicolaasuni.tecnick.com"
+                }
+            ],
+            "description": "An easy to use, non-bloated, barcode generator in PHP. Creates SVG, PNG, JPG and HTML images from the most used 1D barcode standards.",
+            "homepage": "https://github.com/picqer/php-barcode-generator",
+            "keywords": [
+                "CODABAR",
+                "Code11",
+                "Code93",
+                "EAN13",
+                "KIX",
+                "KIXCODE",
+                "MSI",
+                "POSTNET",
+                "Pharma",
+                "Standard 2 of 5",
+                "barcode",
+                "barcode generator",
+                "code128",
+                "code39",
+                "ean",
+                "html",
+                "jpeg",
+                "jpg",
+                "php",
+                "png",
+                "svg",
+                "upc"
+            ],
+            "support": {
+                "issues": "https://github.com/picqer/php-barcode-generator/issues",
+                "source": "https://github.com/picqer/php-barcode-generator/tree/v3.3.0"
+            },
+            "time": "2026-08-22T09:50:32+00:00"
+        },
         {
             "name": "psr/cache",
             "version": "3.0.0",