<?php

/**
 * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
// use OCP namespace for all classes that are considered public.
// This means that they should be used by apps instead of the internal Nextcloud classes

namespace OCP;

use OCP\AppFramework\Attribute\Consumable;
use OCP\AppFramework\Attribute\ExceptionalImplementable;

/**
 * Manages the Nextcloud navigation
 *
 * @since 6.0.0
 *
 * @psalm-type NavigationEntry = array{id: string, order: int, href: string, name: string, app?: string, icon?: string, classes?: string, type?: string}
 * @psalm-type NavigationEntryOutput = array{
 *     id: string,
 *     order?: int,
 *     href: string,
 *     icon: string,
 *     type: string,
 *     name: string,
 *     app?: string,
 *     default?: bool,
 *     active: bool,
 *     classes: string,
 *     unread: int,
 * }
 */
#[Consumable(since: '6.0.0')]
#[ExceptionalImplementable(app: 'guest')]
interface INavigationManager {
	/**
	 * Navigation entries of the app navigation
	 * @since 16.0.0
	 */
	public const TYPE_APPS = 'link';

	/**
	 * Navigation entries of the settings navigation
	 * @since 16.0.0
	 */
	public const TYPE_SETTINGS = 'settings';

	/**
	 * Navigation entries for public page footer navigation
	 * @since 16.0.0
	 */
	public const TYPE_GUEST = 'guest';

	/**
	 * All navigation entries
	 * @since 33.0.0
	 */
	public const TYPE_ALL = 'all';

	/**
	 * Creates a new navigation entry
	 *
	 * @param NavigationEntry|callable():NavigationEntry $entry If a menu entry (type = 'link') is added, you shall also set app to the app that
	 *                                                          added the entry. The use of a closure is preferred, because it will avoid loading
	 *                                                          the routing of your app, unless required.
	 * @return void
	 * @since 6.0.0
	 */
	public function add(array|callable $entry): void;

	/**
	 * Sets the current navigation entry of the currently running app
	 * @param string $appId id of the app entry to activate (from added $entry)
	 * @return void
	 * @since 6.0.0
	 */
	public function setActiveEntry(string $appId): void;

	/**
	 * Get the current navigation entry of the currently running app
	 * @return ?string
	 * @since 20.0.0
	 */
	public function getActiveEntry(): ?string;

	/**
	 * Get a list of navigation entries
	 *
	 * @param self::TYPE_APPS|self::TYPE_SETTINGS|self::TYPE_GUEST|self::TYPE_ALL $type type of the navigation entries
	 * @return array<string, NavigationEntryOutput>
	 * @since 14.0.0
	 */
	public function getAll(string $type = self::TYPE_APPS): array;

	/**
	 * Set an unread counter for navigation entries
	 *
	 * @param string $id id of the navigation entry
	 * @param int $unreadCounter Number of unread entries (0 to hide the counter which is the default)
	 * @since 22.0.0
	 */
	public function setUnreadCounter(string $id, int $unreadCounter): void;

	/**
	 * Get a navigation entry by id.
	 *
	 * @param string $id ID of the navigation entry
	 * @since 31.0.0
	 */
	public function get(string $id): ?array;

	/**
	 * Returns the id of the user's default entry
	 *
	 * If `user` is not passed, the currently logged-in user will be used
	 *
	 * @param ?IUser $user User to query default entry for
	 * @param bool $withFallbacks Include fallback values if no default entry was configured manually
	 *                            Before falling back to predefined default entries,
	 *                            the user defined entry order is considered and the first entry would be used as the fallback.
	 * @since 31.0.0
	 */
	public function getDefaultEntryIdForUser(?IUser $user = null, bool $withFallbacks = true): string;

	/**
	 * Get the global default entries with fallbacks
	 *
	 * @return string[] The default entries
	 * @since 31.0.0
	 */
	public function getDefaultEntryIds(): array;

	/**
	 * Set the global default entries with fallbacks
	 *
	 * @param string[] $ids
	 * @throws \InvalidArgumentException If any of the entries is not available
	 * @since 31.0.0
	 */
	public function setDefaultEntryIds(array $ids): void;
}