Code: polished

src/Api/Entity/Payment.php

@@ -7,6 +7,7 @@
 use Contributte\GopayInline\Api\Objects\Parameter;
 use Contributte\GopayInline\Api\Objects\Payer;
 use Contributte\GopayInline\Api\Objects\Target;
+use Contributte\GopayInline\Exception\InvalidStateException;
 use Money\Money;
 
 class Payment extends AbstractEntity
@@ -89,11 +90,18 @@ public function setAmount(Money $amount): void
 	}
 
 	/**
-	 * @psalm-return non-empty-string
+	 * @return non-empty-string
 	 */
 	public function getCurrency(): string
 	{
-		return $this->amount->getCurrency()->getCode();
+		/** @var string $code */
+		$code = $this->amount->getCurrency()->getCode();
+
+		if ($code === '') {
+			throw new InvalidStateException('Currency code cannot be empty');
+		}
+
+		return $code;
 	}
 
 	public function getOrderNumber(): ?string

src/Api/Objects/Eet.php

@@ -2,6 +2,7 @@
 
 namespace Contributte\GopayInline\Api\Objects;
 
+use Contributte\GopayInline\Exception\InvalidStateException;
 use Money\Currency;
 use Money\Money;
 
@@ -112,11 +113,18 @@ public function getTaxReducedRateSecondInCents(): ?string
 	}
 
 	/**
-	 * @psalm-return non-empty-string
+	 * @return non-empty-string
 	 */
 	public function getCurrency(): string
 	{
-		return $this->sum->getCurrency()->getCode();
+		/** @var string $code */
+		$code = $this->sum->getCurrency()->getCode();
+
+		if ($code === '') {
+			throw new InvalidStateException('Currency code cannot be empty');
+		}
+
+		return $code;
 	}
 
 	public function getTaxBaseNoVat(): ?Money

src/Bridges/Nette/DI/GopayExtension.php

@@ -2,10 +2,6 @@
 
 namespace Contributte\GopayInline\Bridges\Nette\DI;
 
-if (!class_exists('\Nette\DI\Definitions\Statement')) {
-	class_alias('\Nette\DI\Statement', '\Nette\DI\Definitions\Statement');
-}
-
 use Contributte\GopayInline\Client;
 use Contributte\GopayInline\Config;
 use Nette\DI\CompilerExtension;

src/Http/Response.php

@@ -6,6 +6,7 @@
 use Countable;
 use IteratorAggregate;
 use RecursiveArrayIterator;
+use ReturnTypeWillChange;
 
 /**
  * @property-read array $data
@@ -103,7 +104,7 @@ public function offsetExists($offset): bool
 	 * @param mixed $offset
 	 * @return mixed
 	 */
-	#[\ReturnTypeWillChange]
+	#[ReturnTypeWillChange]
 	public function offsetGet($offset)
 	{
 		if ($this->data === null) {

src/Service/AbstractService.php

@@ -80,23 +80,19 @@ protected function makeRequest(string $method, string $uri, ?array $data = null,
 
 		// Set-up method
 		switch ($method) {
-
-			// GET =========================================
 			case HttpClient::METHOD_GET:
 				$request->appendOpts([
 					CURLOPT_HTTPGET => true,
 				]);
-
 				break;
 
-			// POST ========================================
 			case HttpClient::METHOD_POST:
 				$request->appendOpts([
 					CURLOPT_POST => true,
 					CURLOPT_POSTFIELDS => $contentType === Http::CONTENT_FORM ? http_build_query((array) $data) : json_encode($data),
 				]);
-
 				break;
+
 			default:
 				throw new InvalidStateException('Unsupported http method');
 		}