Allow to scan gtin barcodes and find parts via it

src/Form/LabelSystem/ScanDialogType.php

@@ -75,7 +75,8 @@ class ScanDialogType extends AbstractType
                 BarcodeSourceType::INTERNAL => 'scan_dialog.mode.internal',
                 BarcodeSourceType::IPN => 'scan_dialog.mode.ipn',
                 BarcodeSourceType::USER_DEFINED => 'scan_dialog.mode.user',
-                BarcodeSourceType::EIGP114 => 'scan_dialog.mode.eigp'
+                BarcodeSourceType::EIGP114 => 'scan_dialog.mode.eigp',
+                BarcodeSourceType::GTIN => 'scan_dialog.mode.gtin',
             },
         ]);
 

src/Services/LabelSystem/BarcodeScanner/BarcodeRedirector.php

@@ -77,6 +77,10 @@ final class BarcodeRedirector
             return $this->getURLVendorBarcode($barcodeScan);
         }
 
+        if ($barcodeScan instanceof GTINBarcodeScanResult) {
+            return $this->getURLGTINBarcode($barcodeScan);
+        }
+
         throw new InvalidArgumentException('Unknown $barcodeScan type: '.get_class($barcodeScan));
     }
 
@@ -111,6 +115,16 @@ final class BarcodeRedirector
         return $this->urlGenerator->generate('app_part_show', ['id' => $part->getID()]);
     }
 
+    private function getURLGTINBarcode(GTINBarcodeScanResult $barcodeScan): string
+    {
+        $part = $this->em->getRepository(Part::class)->findOneBy(['gtin' => $barcodeScan->gtin]);
+        if (!$part instanceof Part) {
+            throw new EntityNotFoundException();
+        }
+
+        return $this->urlGenerator->generate('app_part_show', ['id' => $part->getID()]);
+    }
+
     /**
      * Gets a part from a scan of a Vendor Barcode by filtering for parts
      * with the same Info Provider Id or, if that fails, by looking for parts with a

src/Services/LabelSystem/BarcodeScanner/BarcodeScanHelper.php

@@ -92,6 +92,9 @@ final class BarcodeScanHelper
         if ($type === BarcodeSourceType::EIGP114) {
             return $this->parseEIGP114Barcode($input);
         }
+        if ($type === BarcodeSourceType::GTIN) {
+            return $this->parseGTINBarcode($input);
+        }
 
         //Null means auto and we try the different formats
         $result = $this->parseInternalBarcode($input);
@@ -117,9 +120,19 @@ final class BarcodeScanHelper
             return $result;
         }
 
+        //If the result is a valid GTIN barcode, we can parse it directly
+        if (GTINBarcodeScanResult::isValidGTIN($input)) {
+            return $this->parseGTINBarcode($input);
+        }
+
         throw new InvalidArgumentException('Unknown barcode');
     }
 
+    private function parseGTINBarcode(string $input): GTINBarcodeScanResult
+    {
+        return new GTINBarcodeScanResult($input);
+    }
+
     private function parseEIGP114Barcode(string $input): EIGP114BarcodeScanResult
     {
         return EIGP114BarcodeScanResult::parseFormat06Code($input);

src/Services/LabelSystem/BarcodeScanner/BarcodeSourceType.php

@@ -42,4 +42,9 @@ enum BarcodeSourceType
      * EIGP114 formatted barcodes like used by digikey, mouser, etc.
      */
     case EIGP114;
-}
+
+    /**
+     * GTIN /EAN barcodes, which are used on most products in the world. These are checked with the GTIN field of a part.
+     */
+    case GTIN;
+}

src/Services/LabelSystem/BarcodeScanner/GTINBarcodeScanResult.php

@@ -0,0 +1,64 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2026 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\Services\LabelSystem\BarcodeScanner;
+
+use GtinValidation\GtinValidator;
+
+readonly class GTINBarcodeScanResult implements BarcodeScanResultInterface
+{
+
+    private GtinValidator $validator;
+
+    public function __construct(
+        public string $gtin,
+    ) {
+        $this->validator = new GtinValidator($this->gtin);
+    }
+
+    public function getDecodedForInfoMode(): array
+    {
+        $obj = $this->validator->getGtinObject();
+        return [
+            'GTIN' => $this->gtin,
+            'GTIN type' => $obj->getType(),
+            'Valid' => $this->validator->isValid() ? 'Yes' : 'No',
+            'Reference Number' => $obj->getReferenceNumber(),
+            'Check Digit' => $obj->getCheckDigit(),
+        ];
+    }
+
+    /**
+     * Checks if the given input is a valid GTIN. This is used to determine whether a scanned barcode should be interpreted as a GTIN or not.
+     * @param  string  $input
+     * @return bool
+     */
+    public static function isValidGTIN(string $input): bool
+    {
+        try {
+            return (new GtinValidator($input))->isValid();
+        } catch (\Exception $e) {
+            return false;
+        }
+    }
+}

translations/messages.en.xlf

@@ -12419,5 +12419,11 @@ Buerklin-API Authentication server:
         <target>GTIN</target>
       </segment>
     </unit>
+    <unit id="0qHQof." name="scan_dialog.mode.gtin">
+      <segment>
+        <source>scan_dialog.mode.gtin</source>
+        <target>GTIN / EAN</target>
+      </segment>
+    </unit>
   </file>
 </xliff>