Implement JSON serialization in interfaces and classes

Updated several classes and interfaces to extend the Arrayable and Jsonable interfaces. This allows for consistent serialization of objects to JSON format. Functionality was added to the Certificate.php, StatisticsInterface.php, UnitInterface.php, Statistics.php, and Unit.php files. Furthermore, the 'chain' property in Certificate.php has been mapped to an array for easy conversion to JSON.

Author: Pavlusha311245

src/Certificate.php

@@ -73,7 +73,7 @@ public function getChain(): array
     {
         return [
             'key' => $this->getKey(),
-            'chain' => $this->getChain(),
+            'chain' => array_map(fn (ChainItem $item) => $item->toArray(), $this->getChain()),
         ];
     }
 }

src/Contracts/StatisticsInterface.php

@@ -4,7 +4,7 @@
 
 use UnitPhpSdk\Abstract\AbstractApplication;
 
-interface StatisticsInterface
+interface StatisticsInterface extends Arrayable, Jsonable
 {
     /**
      * Get connections
@@ -34,4 +34,14 @@ public function getApplications(): array;
      * @return ApplicationStatisticsInterface
      */
     public function getApplicationStatistics(AbstractApplication|string $application): ApplicationStatisticsInterface;
+
+    /**
+     * @inheritDoc
+     */
+    public function toArray(): array;
+
+    /**
+     * @inheritDoc
+     */
+    public function toJson(int $options = 0): string;
 }

src/Contracts/UnitInterface.php

@@ -5,7 +5,7 @@
 use UnitPhpSdk\Config;
 use UnitPhpSdk\Exceptions\UnitException;
 
-interface UnitInterface
+interface UnitInterface extends Arrayable, Jsonable
 {
     /**
      * Return Unit socket
@@ -107,4 +107,14 @@ public function getJsModules(): array;
      * @return void
      */
     public function setJsModules(array $js_modules): void;
+
+    /**
+     * @inheritDoc
+     */
+    public function toArray(): array;
+
+    /**
+     * @inheritDoc
+     */
+    public function toJson(int $options = 0): string;
 }

src/Statistics/Statistics.php

@@ -4,12 +4,14 @@
 
 use Exception;
 use InvalidArgumentException;
+use Override;
 use UnitPhpSdk\Abstract\AbstractApplication;
 use UnitPhpSdk\Contracts\{ApplicationStatisticsInterface,
     Arrayable,
     ConnectionsStatisticsInterface,
     RequestsStatisticsInterface,
-    StatisticsInterface};
+    StatisticsInterface
+};
 use UnitPhpSdk\Exceptions\UnitParseException;
 
 /**
@@ -18,7 +20,7 @@
  * @implements StatisticsInterface
  * @final
  */
-final readonly class Statistics implements StatisticsInterface, Arrayable
+final readonly class Statistics implements StatisticsInterface
 {
     /**
      * Connections statistics
@@ -49,7 +51,7 @@ public function __construct(array $data)
         //        $this->unitInformation = new UnitStatistics($data['unit']);
         $this->connections = new ConnectionsStatistics($data['connections']);
         $this->requests = new RequestsStatistics($data['requests']);
-        $this->applications = array_map(fn ($item) => new ApplicationStatistics($item), $data['applications']);
+        $this->applications = array_map(fn($item) => new ApplicationStatistics($item), $data['applications']);
     }
 
     /**
@@ -92,12 +94,23 @@ public function getApplicationStatistics(AbstractApplication|string $application
         return $this->applications[$application->getName()];
     }
 
-    #[\Override] public function toArray(): array
+    /**
+     * @inheritDoc
+     */
+    #[Override] public function toArray(): array
     {
         return [
             'connections' => $this->connections->toArray(),
             'requests' => $this->requests->toArray(),
-            'applications' => array_map(fn ($item) => $item->toArray(), $this->applications),
+            'applications' => array_map(fn($item) => $item->toArray(), $this->applications),
         ];
     }
+
+    /**
+     * @inheritDoc
+     */
+    #[Override] public function toJson(int $options = 0): string
+    {
+        return json_encode($this->toArray(), $options);
+    }
 }

src/Unit.php

@@ -3,6 +3,7 @@
 namespace UnitPhpSdk;
 
 use UnitPhpSdk\Contracts\{CertificateInterface, UnitInterface, Uploadable};
+use Override;
 use UnitPhpSdk\Enums\HttpMethodsEnum;
 use UnitPhpSdk\Exceptions\FileNotFoundException;
 use UnitPhpSdk\Exceptions\UnitException;
@@ -50,7 +51,8 @@ class Unit implements UnitInterface
     public function __construct(
         private readonly string  $address,
         private readonly ?string $socket = null
-    ) {
+    )
+    {
         $this->request = new UnitRequest(
             address: $this->address,
             socket: $this->socket
@@ -297,4 +299,19 @@ public function remove(Uploadable $object): void
     {
         $object->remove($this->request);
     }
+
+    #[Override] public function toArray(): array
+    {
+        return [
+            'certificates' => array_map(fn ($certificate) => $certificate->toArray(), $this->getCertificates()),
+            'config' => $this->getConfig()->toArray(),
+            'js_modules' => array_map(fn ($module) => $module->toArray(), $this->getJsModules()),
+            'status' => $this->getStatistics()->toArray()
+        ];
+    }
+
+    #[Override] public function toJson(int $options = 0): string
+    {
+        return json_encode($this->toArray(), $options);
+    }
 }