initial implementation of demo organization provider

appinfo/info.xml

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+<?xml version="1.0"?>
+<info xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
+      xsi:noNamespaceSchemaLocation="https://apps.nextcloud.com/schema/apps/info.xsd">
+    <id>demo_organization_provider</id>
+    <name>Demo Organization Provider</name>
+    <summary></summary>
+    <description><![CDATA[]]></description>
+    <version>1.0.0</version>
+    <licence>agpl</licence>
+    <author mail="mail@jonathan-treffler.de">Jonathan Treffler</author>
+    <namespace>DemoOrganizationProvider</namespace>
+    <category>files</category>
+    <bugs>https://git.verdigado.com/verdigado-public/demo_organization_provider/issues</bugs>
+    <dependencies>
+        <php min-version="8.2" />
+        <database>pgsql</database>
+        <database>sqlite</database>
+        <database>mysql</database>
+        <nextcloud min-version="30" max-version="30"/>
+    </dependencies>
+</info>

appinfo/routes.php

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+<?php
+
+return [
+	'resources' => [
+	],
+	'routes' => [
+	]
+];

lib/AppInfo/Application.php

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+<?php
+
+namespace OCA\DemoOrganizationProvider\AppInfo;
+
+use OCP\AppFramework\App;
+use OCP\AppFramework\Bootstrap\IBootstrap;
+use OCP\AppFramework\Bootstrap\IRegistrationContext;
+use OCP\AppFramework\Bootstrap\IBootContext;
+
+use OCA\OrganizationFolders\Events\RegisterOrganizationProviderEvent;
+
+use OCA\DemoOrganizationProvider\Listener\RegisterOrganizationProviderListener;
+
+class Application extends App implements IBootstrap {
+	public const APP_ID = 'demo_organization_provider';
+
+	public function __construct() {
+		parent::__construct(self::APP_ID);
+	}
+
+	public function register(IRegistrationContext $context): void {
+		$context->registerEventListener(RegisterOrganizationProviderEvent::class, RegisterOrganizationProviderListener::class);
+	}
+
+	public function boot(IBootContext $context): void {
+	}
+
+}

lib/Listener/RegisterOrganizationProviderListener.php

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+<?php
+
+declare(strict_types=1);
+
+namespace OCA\DemoOrganizationProvider\Listener;
+
+use OCA\DemoOrganizationProvider\OrganizationProviders\DemoOrganizationProvider;
+
+use OCA\OrganizationFolders\Events\RegisterOrganizationProviderEvent;
+
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\IEventListener;
+
+use Psr\Container\ContainerInterface;
+
+class RegisterOrganizationProviderListener implements IEventListener {
+		public function __construct(private ContainerInterface $container) {}
+
+		public function handle(Event $event): void {
+			if ($event instanceof RegisterOrganizationProviderEvent) {
+				$organizationProviderManager = $event->getOrganizationProviderManager();
+				$organizationProviderManager->registerOrganizationProvider(new DemoOrganizationProvider());
+			}
+		}
+}

lib/OrganizationProviders/DemoOrganizationProvider.php

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+<?php
+
+declare(strict_types=1);
+
+namespace OCA\DemoOrganizationProvider\OrganizationProviders;
+
+use OCA\OrganizationFolders\Model\Organization;
+use OCA\OrganizationFolders\Model\OrganizationRole;
+
+use OCA\OrganizationFolders\Errors\OrganizationNotFound;
+use OCA\OrganizationFolders\Errors\OrganizationRoleNotFound;
+
+class DemoOrganizationProvider extends \OCA\OrganizationFolders\OrganizationProvider\OrganizationProvider {
+	protected $id = "demo";
+
+    private const DEMO_ORGANIZATIONS = [1, 2, 11, 12, 13, 21, 22];
+
+   /**
+    * @return Organization
+    * @throws OrganizationNotFound
+    */
+	public function getOrganization(int $id): Organization {
+        if(in_array($id, self::DEMO_ORGANIZATIONS)) {
+            return new Organization($id, (string)$id);
+        } else {
+            throw new OrganizationNotFound("demo", $id);
+        }
+    }
+
+   /**
+    * @return Organization[]
+    */
+	public function getSubOrganizations(?int $parentOrganizationId = null): array {
+        if(is_null($parentOrganizationId)) {
+            return [
+                new Organization(1, "1"),
+                new Organization(2, "2"),
+            ];
+        } else if ($parentOrganizationId === 1) {
+            return [
+                new Organization(11, "11"),
+                new Organization(12, "12"),
+                new Organization(13, "13"),
+            ];
+        } else if ($parentOrganizationId === 2) {
+            return [
+                new Organization(21, "21"),
+                new Organization(22, "22"),
+            ];
+        } else {
+            return [];
+        }
+    }
+
+   /**
+    * @return OrganizationRole
+    * @throws OrganizationRoleNotFound
+    */
+    public function getRole(string $id): OrganizationRole {
+        [$organizationIdString, $roleNumberString] = explode("_", $id, 2);
+        $organizationId = (int)$organizationIdString;
+        $roleNumber = (int)$roleNumberString;
+
+        if(in_array($organizationId, self::DEMO_ORGANIZATIONS)) {
+            if($roleNumber >= 1 && $roleNumber <= 3) {
+                return new OrganizationRole(
+                    id: $id,
+                    organizationId: $organizationId,
+                    friendlyName: "Role " . $roleNumber . " of org " . $organizationId,
+                    membersGroup: $id
+                );
+            }
+        }
+
+        throw new OrganizationRoleNotFound("demo", $id);
+    }
+
+   /**
+    * @return OrganizationRole[]
+    */
+	public function getRolesOfOrganization(int $organizationId): array {
+        if(in_array($organizationId, self::DEMO_ORGANIZATIONS)) {
+            $result = [];
+            for($i = 1; $i <= 3; $i++) {
+                $result[] = new OrganizationRole(
+                    id: $organizationId . "_" . $i,
+                    organizationId: $organizationId,
+                    friendlyName: "Role " . $i . " of org " . $organizationId,
+                    membersGroup: $organizationId . "_" . $i
+                );
+            }
+            return $result;
+        } else {
+            return [];
+        }
+    }
+
+}