Added basic scan dialog.

src/Services/LabelSystem/Barcodes/BarcodeNormalizer.php

@@ -0,0 +1,75 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 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/>.
+ */
+
+namespace App\Services\LabelSystem\Barcodes;
+
+
+class BarcodeNormalizer
+{
+    protected const PREFIX_TYPE_MAP = [
+        'L' => 'lot',
+        'P' => 'part',
+        'S' => 'location',
+    ];
+
+    /**
+     * Parses barcode content and normalizes it.
+     * Returns an array in the format ['part', 1]: First entry contains element type, second the ID of the element
+     * @param  string  $input
+     * @return array
+     */
+    public function normalizeBarcodeContent(string $input): array
+    {
+        $input = trim($input);
+        $matches = [];
+
+        //Some scanner output '-' as ß, so replace it (ß is never used, so we can replace it safely)
+        $input = str_replace('ß', '-', $input);
+
+        //Extract parts from QR code's URL
+        if (preg_match('#^https?://.*/scan/(\w+)/(\d+)/?$#', $input, $matches)) {
+            return [$matches[1], (int) $matches[2]];
+        }
+
+        //New Code39 barcodes use L-000001 format
+        if (preg_match('#^(\w)-(\d{6,})$#', $input, $matches)) {
+            $prefix = $matches[1];
+            $id = (int) $matches[2];
+
+            if (!isset(self::PREFIX_TYPE_MAP[$prefix])) {
+                throw new \InvalidArgumentException('Unknown prefix ' . $prefix);
+            }
+            return [self::PREFIX_TYPE_MAP[$prefix], $id];
+        }
+
+        //Legacy Part-DB location labels used $L00336 format
+        if (preg_match('#^\$L(\d{5,})$#', $input, $matches)) {
+            return ['location', (int) $matches[1]];
+        }
+
+        //Legacy Part-DB used EAN8 barcodes for part labels. Format 0000001(2) (note the optional 8th digit => checksum)
+        if (preg_match('#^(\d{7})\d?$#', $input, $matches)) {
+            return ['part', (int) $matches[1]];
+        }
+
+
+        throw new \InvalidArgumentException('Unknown barcode format!');
+    }
+}