fix some type-cast issues

Author: Dominik Meyer

src/Message/Handler.php

@@ -47,7 +47,7 @@ public function downloadMessage(string $filePath, int $messageId): bool
                 && $reader->depth === 1
                 && $reader->name == 'MESSAGE'
             ) {
-                $filePut = file_put_contents($filePath, $reader->readOuterXml());
+                $filePut = (bool)file_put_contents($filePath, $reader->readOuterXml());
                 $reader->close();
                 return $filePut;
             }

src/Order/Handler.php

@@ -22,7 +22,7 @@ public function __construct(Client $client)
         $this->client = $client;
     }
 
-    public function getOrder(int $orderId): Order
+    public function getOrder(int $orderId): ?Order
     {
         $catalog = new Tborderlist($this->client, 'orders/' . (int)$orderId, []);
         $orderIterator = $catalog->getOrders();
@@ -42,15 +42,15 @@ public function getOrderFromFile(string $filePath): Order
 
     public function downloadOrder(string $filePath, int $orderId): bool
     {
-        $reader = $this->client->getRestClient()->getXML('orders/' . (int)$orderId, []);
+        $reader = $this->client->getRestClient()->getXML('orders/' . $orderId);
 
         while ($reader->read()) {
             if (
                 $reader->nodeType == XMLReader::ELEMENT
                 && $reader->depth === 1
                 && $reader->name == 'ORDER'
             ) {
-                $filePut = file_put_contents($filePath, $reader->readOuterXml());
+                $filePut = (bool)file_put_contents($filePath, $reader->readOuterXml());
                 $reader->close();
                 return $filePut;
             }

src/Order/Tborder/Iterator.php

@@ -13,7 +13,7 @@ class Iterator extends Base\Iterator implements \Iterator
 {
     private ?Order $current = null;
 
-    public function current(): Order
+    public function current(): ?Order
     {
         return $this->current;
     }

src/Product/Handler.php

@@ -21,7 +21,7 @@ public function __construct(Client $client)
         $this->client = $client;
     }
 
-    public function getProduct(int $productId, int $channelId): Product
+    public function getProduct(int $productId, int $channelId): ?Product
     {
         $catalog = new Tbcat($this->client, 'products/', ['p_id' => $productId, 'channel' => $channelId]);
         $productIterator = $catalog->getProducts();
@@ -52,7 +52,7 @@ public function downloadProduct(string $filePath, int $productId, int $channelId
                 && $reader->depth === 2
                 && $reader->name == 'PRODUCT'
             ) {
-                $filePut = file_put_contents($filePath, $reader->readOuterXml());
+                $filePut = (bool)file_put_contents($filePath, $reader->readOuterXml());
                 $reader->close();
                 return $filePut;
             }

src/Product/Tbcat/Iterator.php

@@ -24,7 +24,7 @@ public function getSupplierName(): ?string
         return $this->supplierName;
     }
 
-    public function current(): Product
+    public function current(): ?Product
     {
         return $this->current;
     }

src/Stock/Tbstock/Iterator.php

@@ -23,7 +23,7 @@ public function getChangeDate(): ?string
         return $this->changeDate;
     }
 
-    public function current(): Stock
+    public function current(): ?Stock
     {
         return $this->current;
     }