lots of improvements

shared/lib/Mail/Collection/CollectionPropertiesBaseInterface.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXF\Mail\Collection;
+
+use KTXF\Resource\Provider\Node\NodePropertiesBaseInterface;
+
+interface CollectionPropertiesBaseInterface extends NodePropertiesBaseInterface {
+
+	public const JSON_TYPE = 'mail.collection';
+	public const JSON_PROPERTY_TOTAL = 'total';
+	public const JSON_PROPERTY_UNREAD = 'unread';
+	public const JSON_PROPERTY_LABEL = 'label';
+	public const JSON_PROPERTY_ROLE = 'role';
+	public const JSON_PROPERTY_RANK = 'rank';
+	public const JSON_PROPERTY_SUBSCRIPTION = 'subscription';
+
+	public function total(): int;
+
+	public function unread(): int;
+
+	public function getLabel(): string;
+
+	public function getRole(): CollectionRoles;
+
+	public function getRank(): int;
+    
+	public function getSubscription(): bool;
+}