implemented organization provider registration

lib/Events/RegisterOrganisationProviderEvent.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\OrganizationFolders\Events;
+
+use OCP\EventDispatcher\Event;
+
+use OCA\OrganizationFolders\Transport\OrganisationProviderManager;
+
+/**
+ * This event is triggered during the initialization of Organisation Folders.
+ */
+class RegisterOrganisationProviderEvent extends Event {
+
+	/** @var OrganisationProviderManager */
+	private $organisationProviderManager;
+
+	public function __construct(OrganisationProviderManager $organisationProviderManager) {
+		parent::__construct();
+		$this->organisationProviderManager = $organisationProviderManager;
+	}
+
+	public function getOrganisationProviderManager(): OrganisationProviderManager {
+		return $this->organisationProviderManager;
+	}
+}

lib/OrganisationProvider/OrganisationProvider.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\OrganizationFolders\OrganisationProvider;
+
+abstract class OrganisationProvider {
+	protected $id;
+
+	public function getId() {
+		return $this->id;
+	}
+
+	// TODO: functions to access organisation structure
+}

lib/OrganisationProvider/OrganisationProviderManager.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\OrganizationFolders\OrganisationProvider;
+
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Server;
+
+use OCA\OrganizationFolders\Events\RegisterOrganisationProviderEvent;
+
+class OrganisationProviderManager {
+	private array $organisationProviders = [];
+
+	public function __construct(
+		IEventDispatcher $dispatcher,
+	) {
+		$event = new RegisterOrganisationProviderEvent($this);
+		$dispatcher->dispatchTyped($event);
+	}
+
+	/**
+	 * @return OrganisationProvider[]
+	 */
+	public function getOrganisationProviders(): array {
+		return $this->organisationProviders;
+	}
+
+	/**
+	 * @return OrganisationProvider
+	 */
+	public function getOrganisationProvider($id): ?OrganisationProvider {
+		return $this->organisationProviders[$id];
+	}
+
+	public function registerOrganisationProvider(OrganisationProvider $organisationProvider): self {
+		$this->organisationProviders[$organisationProvider->getId()] = $organisationProvider;
+		return $this;
+	}
+}