fix: traiter le deuxième lot de tickets

Refs #1 #2 #3 #13 #17

app/Services/Ids.php

@@ -4,6 +4,29 @@ declare(strict_types=1);
 
 final class Ids
 {
+    public static function validRna(string $value): bool
+    {
+        $value = strtoupper(preg_replace('/\s+/', '', trim($value)) ?? '');
+        return $value === '' || preg_match('/^W[0-9]{9}$/', $value) === 1;
+    }
+
+    public static function validSiret(string $value): bool
+    {
+        $digits = preg_replace('/\D+/', '', trim($value)) ?? '';
+        if ($digits === '') {
+            return true;
+        }
+        if (strlen($digits) !== 14) {
+            return false;
+        }
+        $sum = 0;
+        foreach (str_split($digits) as $index => $digit) {
+            $number = (int) $digit * ($index % 2 === 0 ? 2 : 1);
+            $sum += $number > 9 ? $number - 9 : $number;
+        }
+        return $sum % 10 === 0;
+    }
+
     public static function slugifyUpper(string $s): string
     {
         $s = trim($s);