Feature/invoice pdf (#19)

* ✨ Add Pdf class

* ✨ Use Pdf class for Invoice Pdf

* ✅ Add test for Invoice pdf class

src/DTOs/Invoice/Pdf.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Morningtrain\Economic\DTOs\Invoice;
+
+use Morningtrain\Economic\Abstracts\Resource;
+
+class Pdf extends Resource
+{
+    public ?string $download;
+}

src/Resources/Invoice/Invoice.php

@@ -7,6 +7,7 @@
 use Morningtrain\Economic\Attributes\Resources\Properties\ApiFormatting\ResourceToArray;
 use Morningtrain\Economic\Attributes\Resources\Properties\ApiFormatting\ResourceToPrimaryKey;
 use Morningtrain\Economic\DTOs\Invoice\Note;
+use Morningtrain\Economic\DTOs\Invoice\Pdf;
 use Morningtrain\Economic\DTOs\Invoice\Project;
 use Morningtrain\Economic\DTOs\Invoice\Recipient;
 use Morningtrain\Economic\DTOs\Invoice\Reference;
@@ -62,7 +63,7 @@ class Invoice extends Resource
 
     public ?PaymentTerm $paymentTerms = null;
 
-    public ?array $pdf = null;
+    public ?Pdf $pdf = null;
 
     public ?Project $project = null;
 

tests/Unit/InvoiceTest.php

@@ -4,6 +4,7 @@
 use Morningtrain\Economic\Classes\EconomicCollection;
 use Morningtrain\Economic\Classes\EconomicResponse;
 use Morningtrain\Economic\DTOs\Invoice\Note;
+use Morningtrain\Economic\DTOs\Invoice\Pdf;
 use Morningtrain\Economic\DTOs\Invoice\ProductLine;
 use Morningtrain\Economic\DTOs\Invoice\Recipient;
 use Morningtrain\Economic\DTOs\Invoice\Reference;
@@ -217,6 +218,7 @@
 
     expect($bookedInvoice)
         ->toBeInstanceOf(BookedInvoice::class)
+        ->pdf->toBeInstanceOf(Pdf::class)
         ->bookedInvoiceNumber->toBe(300);
 });