added resource members

lib/Service/ResourceMemberService.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace OCA\OrganizationFolders\Service;
+
+use Exception;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+
+use OCA\OrganizationFolders\Errors\ResourceMemberNotFound;
+
+use OCA\OrganizationFolders\Db\ResourceMember;
+use OCA\OrganizationFolders\Db\ResourceMemberMapper;
+
+use OCA\OrganizationFolders\Enum\MemberPermissionLevel;
+use OCA\OrganizationFolders\Enum\MemberType;
+
+class ResourceMemberService {
+	public function __construct(
+        private ResourceMemberMapper $mapper
+    ) {
+	}
+
+	public function findAll(int $resourceId): array {
+		return $this->mapper->findAll($resourceId);
+	}
+
+	private function handleException(Exception $e): void {
+		if ($e instanceof DoesNotExistException ||
+			$e instanceof MultipleObjectsReturnedException) {
+			throw new ResourceMemberNotFound($e->getMessage());
+		} else {
+			throw $e;
+		}
+	}
+
+	public function find(int $id): ResourceMember {
+		try {
+			return $this->mapper->find($id);
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+
+	public function create(
+		int $resourceId,
+		MemberPermissionLevel $permissionLevel,
+		MemberType $type,
+		string $principal
+	): ResourceMember {
+		$member = new ResourceMember();
+		$member->setResourceId($resourceId);
+		$member->setPermissionLevel($permissionLevel->value);
+        $member->setType($type->value);
+        $member->setPrincipal($principal);
+        $member->setCreatedTimestamp(time());
+        $member->setLastUpdatedTimestamp(time());
+
+		return $this->mapper->insert($member);
+	}
+
+	public function update(int $id, ?MemberPermissionLevel $permissionLevel = null, ?MemberType $type = null, ?string $principal = null): ResourceMember {
+		try {
+			$member = $this->mapper->find($id);
+
+            if(isset($permissionLevel)) {
+                $member->setPermissionLevel($permissionLevel->value);
+            }
+
+            if(isset($type)) {
+                $member->setType($type->value);
+            }
+
+            if(isset($principal)) {
+                $member->setPrincipal($principal);
+            }
+			
+            if(count($member->getUpdatedFields()) > 0) {
+                $member->setLastUpdatedTimestamp(time());
+            }
+
+			return $this->mapper->update($member);
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+
+	public function delete(int $id): ResourceMember {
+		try {
+			$member = $this->mapper->find($id);
+			$this->mapper->delete($member);
+			return $member;
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+}