Add CreateSession method to handle session creation

src/Socialbox/Classes/StandardMethods/CreateSession.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Socialbox\Classes\StandardMethods;
+
+use InvalidArgumentException;
+use Socialbox\Abstracts\Method;
+use Socialbox\Enums\StandardError;
+use Socialbox\Exceptions\DatabaseOperationException;
+use Socialbox\Exceptions\StandardException;
+use Socialbox\Interfaces\SerializableInterface;
+use Socialbox\Managers\SessionManager;
+use Socialbox\Objects\ClientRequest;
+use Socialbox\Objects\RpcRequest;
+
+class CreateSession extends Method
+{
+    /**
+     * Executes the session creation process based on the provided public key.
+     *
+     * @param ClientRequest $request The client request object.
+     * @param RpcRequest $rpcRequest The RPC request containing parameters for execution.
+     * @return SerializableInterface|null Returns a response with the session UUID or an error.
+     * @throws StandardException Thrown if an error occurs during the session creation process.
+     */
+    public static function execute(ClientRequest $request, RpcRequest $rpcRequest): ?SerializableInterface
+    {
+        if(!$rpcRequest->containsParameter('public_key'))
+        {
+            return $rpcRequest->produceError(StandardError::RPC_INVALID_ARGUMENTS, 'Missing parameter \'public_key\'');
+        }
+
+        try
+        {
+            $uuid = SessionManager::createSession($rpcRequest->getParameter('public_key'));
+        }
+        catch(DatabaseOperationException $e)
+        {
+            return $rpcRequest->produceError(StandardError::INTERNAL_SERVER_ERROR, 'There was an error while trying to create a new session: ' . $e->getMessage());
+        }
+        catch(InvalidArgumentException $e)
+        {
+            return $rpcRequest->produceError(StandardError::RPC_INVALID_ARGUMENTS, $e->getMessage());
+        }
+
+        return $rpcRequest->produceResponse([
+            'uuid' => $uuid
+        ]);
+    }
+}