Refactor Certificate class and add ChainItem class

In the Certificate class, we expanded its functionality to implement Arrayable interface and added data validation in the constructor. Additionally, we introduced a new ChainItem class which holds information about individual parts of the certificate chain. This aims to provide a more granular and controlled access over individual components of the SSL certificate chain. The toArray methods in both classes were also annotated with #[\Override] attribute.

Author: Pavlusha311245

src/Certificate.php

@@ -2,20 +2,43 @@
 
 namespace UnitPhpSdk;
 
+use UnitPhpSdk\Certificate\ChainItem;
+use UnitPhpSdk\Contracts\Arrayable;
 use UnitPhpSdk\Contracts\CertificateInterface;
 
 /**
  * Certificate class
  *
  * @implements CertificateInterface
  */
-readonly class Certificate implements CertificateInterface
+readonly class Certificate implements CertificateInterface, Arrayable
 {
+    /**
+     * @var array $chain
+     */
+    private array $chain;
+
+    /**
+     * @var string|mixed $key
+     */
+    private string $key;
+
     public function __construct(
-        private array  $data,
+        array          $data,
         private string $name
     ) {
-        //
+        if (!isset($data['key']) || !isset($data['chain'])) {
+            throw new \InvalidArgumentException('Certificate data should contain key and chain');
+        }
+
+        $chainItems = [];
+        foreach ($data['chain'] as $item) {
+            $chainItems[] = new ChainItem($item);
+        }
+
+        $this->chain = $chainItems;
+
+        $this->key = $data['key'];
     }
 
     /**
@@ -33,24 +56,22 @@ public function getName(): string
      */
     public function getKey(): string
     {
-        return $this->data['key'];
+        return $this->key;
     }
 
     /**
      * @inheritDoc
      */
     public function getChain(): array
     {
-        return $this->data['chain'];
+        return $this->chain;
     }
 
-    /**
-     * Return all certificate data as array
-     *
-     * @return array
-     */
-    public function getData(): array
+    #[\Override] public function toArray(): array
     {
-        return $this->data;
+        return [
+            'key' => $this->getKey(),
+            'chain' => $this->getChain(),
+        ];
     }
 }

src/Certificate/ChainItem.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace UnitPhpSdk\Certificate;
+
+use UnitPhpSdk\Contracts\Arrayable;
+
+class ChainItem implements Arrayable
+{
+    /**
+     * @var array|mixed $subjet
+     */
+    private array $subjet;
+
+    /**
+     * @var array|mixed $issuer
+     */
+    private array $issuer;
+
+    /**
+     * Holds the validity information for the current object.
+     *
+     * @var array|mixed
+     */
+    private array $validity;
+
+    public function __construct(array $data)
+    {
+        $this->subjet = $data['subject'];
+        $this->issuer = $data['issuer'];
+        $this->validity = $data['validity'];
+    }
+
+    /**
+     * @return array
+     */
+    public function getSubject(): array
+    {
+        return $this->subjet;
+    }
+
+    /**
+     * @return array
+     */
+    public function getIssuer(): array
+    {
+        return $this->issuer;
+    }
+
+    /**
+     * Retrieves the validity of the object.
+     *
+     * @return array The array containing the validity information.
+     */
+    public function getValidity(): array
+    {
+        return $this->validity;
+    }
+
+    #[\Override] public function toArray(): array
+    {
+        return [
+            'subject' => $this->subjet,
+            'issuer' => $this->issuer,
+            'validity' => $this->validity,
+        ];
+    }
+}

src/Config/Settings/Http.php

@@ -174,7 +174,7 @@ public function isServerVersion(): bool
      *
      * @return array An associative array containing the properties of the object.
      */
-    public function toArray(): array
+    #[\Override] public function toArray(): array
     {
         return [
             'body_read_timeout' => $this->body_read_timeout,