Fixed uid generation.

Fixed setting correlated invoices.

src/Actions/GenerateUid.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Firebed\AadeMyData\Actions;
+
+use Firebed\AadeMyData\Enums\InvoiceType;
+use Firebed\AadeMyData\Enums\InvoiceVariationType;
+
+class GenerateUid
+{
+    private const NORMALIZE_SERIES = true;
+
+    public function handle(string $vatNumber, string $issueDate, int $branchId, InvoiceType|string $invoiceType, string $series, int $number, InvoiceVariationType|int $invoiceVariationType = null): string
+    {
+        $attributes = [
+            $vatNumber,
+            $issueDate,
+            $branchId,
+            $invoiceType instanceof InvoiceType ? $invoiceType->value : $invoiceType,
+            $this->normalizeSeries($series),
+            $number
+        ];
+
+        if ($invoiceVariationType) {
+            $attributes[] = $invoiceVariationType instanceof InvoiceVariationType ? $invoiceVariationType->value : $invoiceVariationType;
+        }
+
+        return strtoupper(sha1(implode('-', $attributes)));
+    }
+
+    /**
+     * Converts series to iso-8859-7 to match myData's current format.
+     */
+    private function normalizeSeries(string $series): string
+    {
+        return self::NORMALIZE_SERIES
+            ? mb_convert_encoding($series, 'ISO-8859-7', 'UTF-8')
+            : $series;
+    }
+}

src/Models/Invoice.php

@@ -4,6 +4,7 @@
 
 
 use DOMDocument;
+use Firebed\AadeMyData\Actions\GenerateUid;
 use Firebed\AadeMyData\Actions\SquashInvoiceRows;
 use Firebed\AadeMyData\Actions\SummarizeInvoice;
 use Firebed\AadeMyData\Enums\TransmissionFailure;
@@ -51,6 +52,20 @@ public function getUid(): ?string
         return $this->get('uid');
     }
 
+    public function guessUid(): ?string
+    {
+        $generator = new GenerateUid();
+        return $generator->handle(
+            vatNumber: $this->getIssuer()->getVatNumber(),
+            issueDate: $this->getInvoiceHeader()->getIssueDate(),
+            branchId: $this->getIssuer()->getBranch(),
+            invoiceType: $this->getInvoiceHeader()->getInvoiceType(),
+            series: $this->getInvoiceHeader()->getSeries(),
+            number: $this->getInvoiceHeader()->getAa(),
+            invoiceVariationType: $this->getInvoiceHeader()->getInvoiceVariationType(),
+        );
+    }
+
     /**
      * Συμπληρώνεται από την Υπηρεσία.
      *

src/Models/InvoiceHeader.php

@@ -186,7 +186,7 @@ public function addCorrelatedInvoice(int $correlatedInvoice): static
      */
     public function setCorrelatedInvoices(?array $correlatedInvoices): static
     {
-        return $this->push('correlatedInvoices', $correlatedInvoices);
+        return $this->set('correlatedInvoices', $correlatedInvoices);
     }
 
     /**