implemented snapshot name parsing

lib/Entity/Snapshot.php

@@ -5,16 +5,30 @@ namespace OCA\GroupfolderFilesystemSnapshots\Entity;
 use JsonSerializable;
 
 class Snapshot implements JsonSerializable {
-    /** @var string */
-    private $id;
-
-    public function __construct(string $id) {
-        $this->id = $id;
+    public function __construct(
+		private string $id,
+		private string $name,
+		private ?\DateTimeImmutable $createdTimestamp = null,
+	) {
     }
 
+	public function getId(): string {
+		return $this->id;
+	}
+
+	public function getName(): string {
+		return $this->name;
+	}
+
+	public function getCreatedTimestamp(): ?\DateTimeImmutable {
+		return $this->createdTimestamp;
+	}
+
     public function jsonSerialize(): mixed {
 		return [
-			'id' => $this->id
+			'id' => $this->id,
+			'name' => $this->name,
+			'createdTimestamp' => $this->createdTimestamp?->getTimestamp(),
 		];
 	}
 }