Add first revision of MatrixService

Does not work, because of a GuzzleHttp version clash
in nextcloud/3rdparty and php-matrix-sdk.

lib/AppInfo/Application.php

@@ -3,11 +3,25 @@
 namespace OCA\UPschooling\AppInfo;
 
 use OCP\AppFramework\App;
+use OCP\AppFramework\Bootstrap\IBootContext;
+use OCP\AppFramework\Bootstrap\IBootstrap;
+use OCP\AppFramework\Bootstrap\IRegistrationContext;
 
-class Application extends App {
+class Application extends App implements IBootstrap {
 	public const APP_ID = 'upschooling';
 
 	public function __construct() {
 		parent::__construct(self::APP_ID);
 	}
+
+    public function register(IRegistrationContext $context): void
+    {
+        // Register the composer autoloader for packages shipped by this app, if applicable
+        include_once __DIR__ . '/../../vendor/autoload.php';
+    }
+
+    public function boot(IBootContext $context): void
+    {
+        // nothing to boot?
+    }
 }

lib/Controller/NoteController.php

@@ -3,15 +3,20 @@
 namespace OCA\UPschooling\Controller;
 
 use OCA\UPschooling\AppInfo\Application;
+use OCA\UPschooling\Service\MatrixService;
 use OCA\UPschooling\Service\NoteService;
 use OCP\AppFramework\Controller;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\IRequest;
 
 class NoteController extends Controller {
+
 	/** @var NoteService */
 	private $service;
 
+	/** @var MatrixService */
+	private $matrix;
+
 	/** @var string */
 	private $userId;
 
@@ -19,9 +24,11 @@ class NoteController extends Controller {
 
 	public function __construct(IRequest $request,
 								NoteService $service,
+                                MatrixService $matrix,
 								$userId) {
 		parent::__construct(Application::APP_ID, $request);
 		$this->service = $service;
+		$this->matrix = $matrix;
 		$this->userId = $userId;
 	}
 

lib/Service/MatrixService.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace OCA\UPschooling\Service;
+
+use Aryess\PhpMatrixSdk\Exceptions\MatrixRequestException;
+use \Psr\Log\LoggerInterface;
+
+use Aryess\PhpMatrixSdk\Exceptions\MatrixException;
+use Aryess\PhpMatrixSdk\MatrixClient;
+use Aryess\PhpMatrixSdk\Room;
+
+class MatrixService
+{
+
+    /** @var LoggerInterface */
+    private $logger;
+
+    /** @var string */
+    private $channel;
+
+    /** @var MatrixClient */
+    private $client;
+
+    /** @var string */
+    private $token;
+
+    /** @var Room */
+    private $room;
+
+    public function __construct(LoggerInterface $logger) {
+        $this->logger = $logger;
+        $this->channel = "#issue:synapse";
+        $this->client = new MatrixClient("http://synapse:8008");
+        $this->token = $this->client->login("upschooling", "secret");
+        try {
+            $this->room = $this->client->createRoom($this->channel, false, array());
+        } catch (MatrixException $e) {
+            $this->logger->error("Could not create room ".$this->channel, array('exception' => $e));
+        }
+    }
+
+    /**
+     * Sets a property on a channel.
+     *
+     * @param string $eventType a unique property identifier with reverse domain notation, e.g. com.example.property.
+     * @param array $content the contents as a JSON serializable array.
+     * @throws MatrixException
+     */
+    public function setProperty(string $eventType, array $content)
+    {
+        $this->room->sendStateEvent($eventType, $content);
+    }
+
+    /**
+     * @param string $eventType a unique property identifier with reverse domain notation, e.g. com.example.property.
+     * @return array the contents of the room state.
+     * @throws MatrixException|MatrixRequestException
+     */
+    public function getProperty(string $eventType): array
+    {
+        // first parameter should be $this->room->roomId
+        return $this->client->api()->getStateEvent($this->channel, $eventType);
+    }
+
+}