chore: refactoring

.gitignore

@@ -1,3 +1,4 @@
+.idea
 vendor
 tools
 test.php

composer.json

@@ -4,9 +4,9 @@
     "type": "library",
     "license": "MIT",
     "autoload": {
-        "classmap": [
-            "src"
-        ]
+        "psr-4": {
+            "IPay\\": "src/"
+        }
     },
     "authors": [
         {

phpstan-baseline.neon

@@ -1,2 +1,6 @@
 parameters:
-	ignoreErrors: []
+	ignoreErrors:
+		-
+			message: "#^Property IPay\\\\Builders\\\\TransactionBuilder\\:\\:\\$resolver is never written, only read\\.$#"
+			count: 1
+			path: src/Builders/TransactionBuilder.php

src/Builders/BodyBuilder.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace IPay\Builders;
+
+use IPay\Encryption\Encryptor;
+use Nette\Utils\Json;
+use Nette\Utils\Random;
+
+/**
+ * @psalm-type ValueType = string|int
+ * @psalm-type ParametersType = array<string, ValueType>
+ */
+final class BodyBuilder implements \Stringable, \JsonSerializable
+{
+    /**
+     * @param ParametersType $parameters
+     */
+    public function __construct(
+        private array $parameters = [],
+    ) {
+    }
+
+    public function setSessionId(string $value): void
+    {
+        $this->parameters['sessionId'] = $value;
+    }
+
+    /**
+     * @param ParametersType $parameters
+     */
+    public function build(array $parameters = []): self
+    {
+        $data = array_merge([
+            'lang' => 'en',
+            'requestId' => Random::generate(12, '0-9A-Z').'|'.time(),
+        ], $this->parameters, $parameters);
+        ksort($data);
+        $data['signature'] = md5(http_build_query($data));
+
+        return new self($data);
+    }
+
+    public function encrypt(): string
+    {
+        return new self(['encrypted' => Encryptor::encrypt($this)]);
+    }
+
+    public function __toString(): string
+    {
+        return Json::encode($this->parameters);
+    }
+
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        return $this->parameters;
+    }
+}