Add invoice builder

src/Invoice.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace KianKamgar\MoadianPhp;
+
+use KianKamgar\MoadianPhp\Models\Invoice\InvoiceBody;
+use KianKamgar\MoadianPhp\Models\Invoice\InvoiceHeader;
+use KianKamgar\MoadianPhp\Models\Invoice\InvoiceModel;
+use KianKamgar\MoadianPhp\Models\Invoice\InvoicePayment;
+
+class Invoice
+{
+    private array $header;
+    private array $body = [];
+    private array $payments = [];
+
+    public function header(string $memoryId): InvoiceHeader
+    {
+        $header = (new InvoiceHeader())
+            ->setMemoryId($memoryId);
+        $this->header[] = $header;
+
+        return $header;
+    }
+
+    public function body(): InvoiceBody
+    {
+        $body = new InvoiceBody();
+        $this->body[] = $body;
+
+        return $body;
+    }
+
+    public function payment(): InvoicePayment
+    {
+        $payment = new InvoicePayment();
+        $this->payments[] = $payment;
+
+        return $payment;
+    }
+
+    public function build(): array
+    {
+        return (new InvoiceModel())
+            ->setHeader($this->header[0]->build())
+            ->setBody($this->body)
+            ->setPayments($this->payments)
+            ->getInvoice();
+    }
+}

src/Moadian.php

@@ -8,8 +8,6 @@
 use KianKamgar\MoadianPhp\Helpers\SignHelper;
 use KianKamgar\MoadianPhp\Models\FiscalInformationResponse;
 use KianKamgar\MoadianPhp\Models\InquiryArrayResponse;
-use KianKamgar\MoadianPhp\Models\Invoice\Invoice;
-use KianKamgar\MoadianPhp\Models\Invoice\InvoiceHeader;
 use KianKamgar\MoadianPhp\Models\RandomChallengeResponse;
 use KianKamgar\MoadianPhp\Models\SendInvoiceResponse;
 use KianKamgar\MoadianPhp\Models\SendInvoiceResultResponse;
@@ -103,15 +101,6 @@ public function getInquiryByTime(int $pageNumber = 1, int $pageSize = 10, ?strin
             ->request($this->getToken());
     }
 
-    public function createInvoice(InvoiceHeader $header, array $body, array $payments = []): array
-    {
-        return (new Invoice())
-            ->setHeader($header->setMemoryId($this->memoryId)->getHeader())
-            ->setBody($body)
-            ->setPayments($payments)
-            ->getInvoice();
-    }
-
     /**
      * @throws GuzzleException
      */
@@ -164,6 +153,11 @@ public function arrayResponse(bool $arrayResponse = true): Moadian
         return $this;
     }
 
+    public function getMemoryId(): string
+    {
+        return $this->memoryId;
+    }
+
     /**
      * @throws GuzzleException
      */