Implement client session management and refactoring

src/Socialbox/SocialClient.php

@@ -0,0 +1,57 @@
+<?php
+
+    namespace Socialbox;
+
+    use Socialbox\Classes\RpcClient;
+    use Socialbox\Classes\Utilities;
+    use Socialbox\Exceptions\CryptographyException;
+    use Socialbox\Exceptions\ResolutionException;
+    use Socialbox\Exceptions\RpcException;
+    use Socialbox\Objects\KeyPair;
+    use Socialbox\Objects\RpcError;
+    use Socialbox\Objects\RpcRequest;
+
+    class SocialClient extends RpcClient
+    {
+        /**
+         * Constructs a new instance with the specified domain.
+         *
+         * @param string $domain The domain to be set for the instance.
+         * @throws ResolutionException
+         */
+        public function __construct(string $domain)
+        {
+            parent::__construct($domain);
+        }
+
+        /**
+         * Creates a new session using the provided key pair.
+         *
+         * @param KeyPair $keyPair The key pair to be used for creating the session.
+         * @return string The UUID of the created session.
+         * @throws CryptographyException if there is an error in the cryptographic operations.
+         * @throws RpcException if there is an error in the RPC request or if no response is received.
+         */
+        public function createSession(KeyPair $keyPair): string
+        {
+            $response = $this->sendRequest(new RpcRequest('createSession', Utilities::randomCrc32(), [
+                'public_key' => $keyPair->getPublicKey()
+            ]));
+
+            if($response === null)
+            {
+                throw new RpcException('Failed to create the session, no response received');
+            }
+
+            if($response instanceof RpcError)
+            {
+                throw RpcException::fromRpcError($response);
+            }
+
+            $this->setSessionUuid($response->getResult());
+            $this->setPrivateKey($keyPair->getPrivateKey());
+
+            return $response->getResult();
+        }
+
+    }