feat: add dashboard widgets

.gitignore

@@ -10,7 +10,8 @@
 /node_modules/
 /dist
 /js
-/css
+/css/*
+!/css/dashboard.css
 .DS_Store
 build/
 tsconfig.app.tsbuildinfo

css/dashboard.css

@@ -0,0 +1,8 @@
+/**
+ * Dashboard widget icon theming
+ * Inverts dark icons in dark mode using Nextcloud's CSS variable
+ */
+img[src*="/forum/img/thread-dark.svg"],
+img[src*="/forum/img/folder-dark.svg"] {
+  filter: var(--background-invert-if-dark);
+}

img/folder-dark.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+  <path d="M10,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V8C22,6.89 21.1,6 20,6H12L10,4Z"/>
+</svg>

img/thread-dark.svg

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg width="100%" height="100%" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
+    <path id="thread" d="M17,12L17,3C17,2.451 16.549,2 16,2L3,2C2.451,2 2,2.451 2,3L2,17L6,13L16,13C16.549,13 17,12.549 17,12M21,6L19,6L19,15L6,15L6,17C6,17.549 6.451,18 7,18L18,18L22,22L22,7C22,6.451 21.549,6 21,6Z" style="fill-rule:nonzero;"/>
+</svg>

lib/AppInfo/Application.php

@@ -4,6 +4,10 @@ declare(strict_types=1);
 
 namespace OCA\Forum\AppInfo;
 
+use OCA\Forum\Dashboard\RecentActivityWidget;
+use OCA\Forum\Dashboard\TopActivityWidget;
+use OCA\Forum\Dashboard\TopCategoriesWidget;
+use OCA\Forum\Dashboard\TopThreadsWidget;
 use OCA\Forum\Listener\UserEventListener;
 use OCA\Forum\Middleware\PermissionMiddleware;
 use OCA\Forum\Notification\Notifier;
@@ -37,6 +41,12 @@ class Application extends App implements IBootstrap {
 
 		// Register notification notifier
 		$context->registerNotifierService(Notifier::class);
+
+		// Register dashboard widgets
+		$context->registerDashboardWidget(RecentActivityWidget::class);
+		$context->registerDashboardWidget(TopActivityWidget::class);
+		$context->registerDashboardWidget(TopCategoriesWidget::class);
+		$context->registerDashboardWidget(TopThreadsWidget::class);
 	}
 
 	public function boot(IBootContext $context): void {

lib/Dashboard/RecentActivityWidget.php

@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+// SPDX-FileCopyrightText: Chen Asraf <contact@casraf.dev>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Forum\Dashboard;
+
+use OCA\Forum\AppInfo\Application;
+use OCP\Dashboard\IAPIWidgetV2;
+use OCP\Dashboard\IButtonWidget;
+use OCP\Dashboard\IIconWidget;
+use OCP\Dashboard\Model\WidgetButton;
+use OCP\Dashboard\Model\WidgetItem;
+use OCP\Dashboard\Model\WidgetItems;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+
+class RecentActivityWidget implements IAPIWidgetV2, IIconWidget, IButtonWidget {
+	public function __construct(
+		private IL10N $l,
+		private IURLGenerator $urlGenerator,
+		private WidgetService $widgetService,
+	) {
+	}
+
+	public function getId(): string {
+		return 'forum-recent-activity';
+	}
+
+	public function getTitle(): string {
+		return $this->l->t('Recent Forum activity');
+	}
+
+	public function getOrder(): int {
+		return 10;
+	}
+
+	public function getIconClass(): string {
+		return 'icon-forum';
+	}
+
+	public function getIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'app-dark.svg');
+	}
+
+	public function getUrl(): ?string {
+		return $this->widgetService->getForumUrl();
+	}
+
+	public function load(): void {
+		\OCP\Util::addStyle(Application::APP_ID, 'dashboard');
+	}
+
+	public function getWidgetButtons(string $userId): array {
+		return [
+			new WidgetButton(
+				WidgetButton::TYPE_MORE,
+				$this->widgetService->getForumUrl(),
+				$this->l->t('More activity')
+			),
+		];
+	}
+
+	public function getItemsV2(string $userId, ?string $since = null, int $limit = 7): WidgetItems {
+		$activity = $this->widgetService->getRecentActivity($userId, $limit);
+
+		$items = [];
+		foreach ($activity as $entry) {
+			$thread = $entry['thread'];
+			if ($thread === null) {
+				continue;
+			}
+
+			$title = $thread->getTitle();
+			$link = $this->widgetService->getThreadUrl($thread);
+			$sinceId = (string)$entry['createdAt'];
+
+			if ($entry['type'] === 'thread') {
+				$subtitle = $this->l->t('New thread by %1$s', [$thread->getAuthorId()]);
+			} else {
+				$post = $entry['item'];
+				$subtitle = $this->l->t('Reply by %1$s', [$post->getAuthorId()]);
+			}
+
+			$items[] = new WidgetItem(
+				$title,
+				$subtitle,
+				$link,
+				$this->widgetService->getThreadIconUrl(),
+				$sinceId
+			);
+		}
+
+		return new WidgetItems(
+			$items,
+			$this->l->t('No recent forum activity')
+		);
+	}
+}

lib/Dashboard/TopActivityWidget.php

@@ -0,0 +1,108 @@
+<?php
+
+declare(strict_types=1);
+
+// SPDX-FileCopyrightText: Chen Asraf <contact@casraf.dev>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Forum\Dashboard;
+
+use OCA\Forum\AppInfo\Application;
+use OCP\Dashboard\IAPIWidgetV2;
+use OCP\Dashboard\IButtonWidget;
+use OCP\Dashboard\IIconWidget;
+use OCP\Dashboard\Model\WidgetButton;
+use OCP\Dashboard\Model\WidgetItem;
+use OCP\Dashboard\Model\WidgetItems;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+
+class TopActivityWidget implements IAPIWidgetV2, IIconWidget, IButtonWidget {
+	public function __construct(
+		private IL10N $l,
+		private IURLGenerator $urlGenerator,
+		private WidgetService $widgetService,
+	) {
+	}
+
+	public function getId(): string {
+		return 'forum-top-activity';
+	}
+
+	public function getTitle(): string {
+		return $this->l->t('Top Forum activity');
+	}
+
+	public function getOrder(): int {
+		return 13;
+	}
+
+	public function getIconClass(): string {
+		return 'icon-forum';
+	}
+
+	public function getIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'app-dark.svg');
+	}
+
+	public function getUrl(): ?string {
+		return $this->widgetService->getForumUrl();
+	}
+
+	public function load(): void {
+		\OCP\Util::addStyle(Application::APP_ID, 'dashboard');
+	}
+
+	public function getWidgetButtons(string $userId): array {
+		return [
+			new WidgetButton(
+				WidgetButton::TYPE_MORE,
+				$this->widgetService->getForumUrl(),
+				$this->l->t('Browse forum')
+			),
+		];
+	}
+
+	public function getItemsV2(string $userId, ?string $since = null, int $limit = 7): WidgetItems {
+		$items = [];
+
+		// Get top categories (half of limit, rounded up)
+		$categoryLimit = (int)ceil($limit / 2);
+		$categories = $this->widgetService->getTopCategories($userId, $categoryLimit);
+
+		foreach ($categories as $category) {
+			$threadCount = $category->getThreadCount();
+
+			$items[] = new WidgetItem(
+				$category->getName(),
+				$this->l->n('%n thread', '%n threads', $threadCount),
+				$this->widgetService->getCategoryUrl($category),
+				$this->widgetService->getCategoryIconUrl(),
+				'cat-' . $category->getId()
+			);
+		}
+
+		// Get top threads (remaining slots)
+		$threadLimit = $limit - count($items);
+		if ($threadLimit > 0) {
+			$threads = $this->widgetService->getTopThreads($userId, $threadLimit);
+
+			foreach ($threads as $thread) {
+				$viewCount = $thread->getViewCount();
+
+				$items[] = new WidgetItem(
+					$thread->getTitle(),
+					$this->l->n('%n view', '%n views', $viewCount),
+					$this->widgetService->getThreadUrl($thread),
+					$this->widgetService->getThreadIconUrl(),
+					'thread-' . $thread->getId()
+				);
+			}
+		}
+
+		return new WidgetItems(
+			$items,
+			$this->l->t('No forum activity')
+		);
+	}
+}

lib/Dashboard/TopCategoriesWidget.php

@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+// SPDX-FileCopyrightText: Chen Asraf <contact@casraf.dev>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Forum\Dashboard;
+
+use OCA\Forum\AppInfo\Application;
+use OCP\Dashboard\IAPIWidgetV2;
+use OCP\Dashboard\IButtonWidget;
+use OCP\Dashboard\IIconWidget;
+use OCP\Dashboard\Model\WidgetButton;
+use OCP\Dashboard\Model\WidgetItem;
+use OCP\Dashboard\Model\WidgetItems;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+
+class TopCategoriesWidget implements IAPIWidgetV2, IIconWidget, IButtonWidget {
+	public function __construct(
+		private IL10N $l,
+		private IURLGenerator $urlGenerator,
+		private WidgetService $widgetService,
+	) {
+	}
+
+	public function getId(): string {
+		return 'forum-top-categories';
+	}
+
+	public function getTitle(): string {
+		return $this->l->t('Top Forum categories');
+	}
+
+	public function getOrder(): int {
+		return 11;
+	}
+
+	public function getIconClass(): string {
+		return 'icon-forum';
+	}
+
+	public function getIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'app-dark.svg');
+	}
+
+	public function getUrl(): ?string {
+		return $this->widgetService->getForumUrl();
+	}
+
+	public function load(): void {
+		\OCP\Util::addStyle(Application::APP_ID, 'dashboard');
+	}
+
+	public function getWidgetButtons(string $userId): array {
+		return [
+			new WidgetButton(
+				WidgetButton::TYPE_MORE,
+				$this->widgetService->getForumUrl(),
+				$this->l->t('Browse forum')
+			),
+		];
+	}
+
+	public function getItemsV2(string $userId, ?string $since = null, int $limit = 7): WidgetItems {
+		$categories = $this->widgetService->getTopCategories($userId, $limit);
+
+		$items = [];
+		foreach ($categories as $category) {
+			$threadCount = $category->getThreadCount();
+
+			$items[] = new WidgetItem(
+				$category->getName(),
+				$this->l->n('%n thread', '%n threads', $threadCount),
+				$this->widgetService->getCategoryUrl($category),
+				$this->widgetService->getCategoryIconUrl(),
+				(string)$category->getId()
+			);
+		}
+
+		return new WidgetItems(
+			$items,
+			$this->l->t('No categories available')
+		);
+	}
+}

lib/Dashboard/TopThreadsWidget.php

@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+// SPDX-FileCopyrightText: Chen Asraf <contact@casraf.dev>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Forum\Dashboard;
+
+use OCA\Forum\AppInfo\Application;
+use OCP\Dashboard\IAPIWidgetV2;
+use OCP\Dashboard\IButtonWidget;
+use OCP\Dashboard\IIconWidget;
+use OCP\Dashboard\Model\WidgetButton;
+use OCP\Dashboard\Model\WidgetItem;
+use OCP\Dashboard\Model\WidgetItems;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+
+class TopThreadsWidget implements IAPIWidgetV2, IIconWidget, IButtonWidget {
+	public function __construct(
+		private IL10N $l,
+		private IURLGenerator $urlGenerator,
+		private WidgetService $widgetService,
+	) {
+	}
+
+	public function getId(): string {
+		return 'forum-top-threads';
+	}
+
+	public function getTitle(): string {
+		return $this->l->t('Top Forum threads');
+	}
+
+	public function getOrder(): int {
+		return 12;
+	}
+
+	public function getIconClass(): string {
+		return 'icon-forum';
+	}
+
+	public function getIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'app-dark.svg');
+	}
+
+	public function getUrl(): ?string {
+		return $this->widgetService->getForumUrl();
+	}
+
+	public function load(): void {
+		\OCP\Util::addStyle(Application::APP_ID, 'dashboard');
+	}
+
+	public function getWidgetButtons(string $userId): array {
+		return [
+			new WidgetButton(
+				WidgetButton::TYPE_MORE,
+				$this->widgetService->getForumUrl(),
+				$this->l->t('Browse forum')
+			),
+		];
+	}
+
+	public function getItemsV2(string $userId, ?string $since = null, int $limit = 7): WidgetItems {
+		$threads = $this->widgetService->getTopThreads($userId, $limit);
+
+		$items = [];
+		foreach ($threads as $thread) {
+			$viewCount = $thread->getViewCount();
+
+			$items[] = new WidgetItem(
+				$thread->getTitle(),
+				$this->l->n('%n view', '%n views', $viewCount),
+				$this->widgetService->getThreadUrl($thread),
+				$this->widgetService->getThreadIconUrl(),
+				(string)$thread->getId()
+			);
+		}
+
+		return new WidgetItems(
+			$items,
+			$this->l->t('No threads available')
+		);
+	}
+}

lib/Dashboard/WidgetService.php

@@ -0,0 +1,180 @@
+<?php
+
+declare(strict_types=1);
+
+// SPDX-FileCopyrightText: Chen Asraf <contact@casraf.dev>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Forum\Dashboard;
+
+use OCA\Forum\AppInfo\Application;
+use OCA\Forum\Db\Category;
+use OCA\Forum\Db\CategoryMapper;
+use OCA\Forum\Db\Post;
+use OCA\Forum\Db\PostMapper;
+use OCA\Forum\Db\Thread;
+use OCA\Forum\Db\ThreadMapper;
+use OCA\Forum\Service\PermissionService;
+use OCP\IURLGenerator;
+
+class WidgetService {
+	public function __construct(
+		private PermissionService $permissionService,
+		private ThreadMapper $threadMapper,
+		private PostMapper $postMapper,
+		private CategoryMapper $categoryMapper,
+		private IURLGenerator $urlGenerator,
+	) {
+	}
+
+	/**
+	 * Get category IDs accessible by the user
+	 *
+	 * @param string $userId
+	 * @return array<int>
+	 */
+	public function getAccessibleCategoryIds(string $userId): array {
+		return $this->permissionService->getAccessibleCategories($userId);
+	}
+
+	/**
+	 * Get recent activity (threads and replies combined)
+	 *
+	 * @param string $userId
+	 * @param int $limit
+	 * @return array<array{type: string, item: Thread|Post, thread: Thread|null, createdAt: int}>
+	 */
+	public function getRecentActivity(string $userId, int $limit = 7): array {
+		$categoryIds = $this->getAccessibleCategoryIds($userId);
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		// Get recent threads and replies
+		$threads = $this->threadMapper->findRecentThreads($categoryIds, $limit);
+		$replies = $this->postMapper->findRecentReplies($categoryIds, $limit);
+
+		// Combine and sort by created_at
+		$activity = [];
+
+		foreach ($threads as $thread) {
+			$activity[] = [
+				'type' => 'thread',
+				'item' => $thread,
+				'thread' => $thread,
+				'createdAt' => $thread->getCreatedAt(),
+			];
+		}
+
+		// Get thread info for replies
+		$threadIds = array_unique(array_map(fn ($post) => $post->getThreadId(), $replies));
+		$threadMap = [];
+		if (!empty($threadIds)) {
+			$threadEntities = $this->threadMapper->findByIds($threadIds);
+			foreach ($threadEntities as $thread) {
+				$threadMap[$thread->getId()] = $thread;
+			}
+		}
+
+		foreach ($replies as $post) {
+			$thread = $threadMap[$post->getThreadId()] ?? null;
+			if ($thread !== null) {
+				$activity[] = [
+					'type' => 'reply',
+					'item' => $post,
+					'thread' => $thread,
+					'createdAt' => $post->getCreatedAt(),
+				];
+			}
+		}
+
+		// Sort by createdAt descending
+		usort($activity, fn ($a, $b) => $b['createdAt'] <=> $a['createdAt']);
+
+		return array_slice($activity, 0, $limit);
+	}
+
+	/**
+	 * Get top categories by thread count
+	 *
+	 * @param string $userId
+	 * @param int $limit
+	 * @return array<Category>
+	 */
+	public function getTopCategories(string $userId, int $limit = 7): array {
+		$categoryIds = $this->getAccessibleCategoryIds($userId);
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		return $this->categoryMapper->findTopByThreadCount($categoryIds, $limit);
+	}
+
+	/**
+	 * Get top threads by view count
+	 *
+	 * @param string $userId
+	 * @param int $limit
+	 * @return array<Thread>
+	 */
+	public function getTopThreads(string $userId, int $limit = 7): array {
+		$categoryIds = $this->getAccessibleCategoryIds($userId);
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		return $this->threadMapper->findTopByViews($categoryIds, $limit);
+	}
+
+	/**
+	 * Get URL for forum home
+	 */
+	public function getForumUrl(): string {
+		return $this->urlGenerator->linkToRouteAbsolute(Application::APP_ID . '.page.index');
+	}
+
+	/**
+	 * Get URL for a thread
+	 */
+	public function getThreadUrl(Thread $thread): string {
+		return $this->urlGenerator->linkToRouteAbsolute(
+			Application::APP_ID . '.page.catchAll',
+			['path' => 't/' . $thread->getSlug()]
+		);
+	}
+
+	/**
+	 * Get URL for a category
+	 */
+	public function getCategoryUrl(Category $category): string {
+		return $this->urlGenerator->linkToRouteAbsolute(
+			Application::APP_ID . '.page.catchAll',
+			['path' => 'c/' . $category->getSlug()]
+		);
+	}
+
+	/**
+	 * Get the forum app icon URL (dark/black icon for widget header - auto-inverted by Nextcloud)
+	 */
+	public function getIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'app-dark.svg');
+	}
+
+	/**
+	 * Get the thread icon URL for widget items (black icon, inverted by CSS in dark mode)
+	 *
+	 * @return string
+	 */
+	public function getThreadIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'thread-dark.svg');
+	}
+
+	/**
+	 * Get the folder icon URL for category items (black icon, inverted by CSS in dark mode)
+	 *
+	 * @return string
+	 */
+	public function getCategoryIconUrl(): string {
+		return $this->urlGenerator->imagePath(Application::APP_ID, 'folder-dark.svg');
+	}
+}

lib/Db/CategoryMapper.php

@@ -212,6 +212,28 @@ class CategoryMapper extends QBMapper {
 		return (int)($row['count'] ?? 0);
 	}
 
+	/**
+	 * Find top categories by thread count
+	 *
+	 * @param array<int> $categoryIds Category IDs to filter by (already permission-filtered)
+	 * @param int $limit Maximum results
+	 * @return array<Category>
+	 */
+	public function findTopByThreadCount(array $categoryIds, int $limit = 7): array {
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from($this->getTableName())
+			->where($qb->expr()->in('id', $qb->createNamedParameter($categoryIds, IQueryBuilder::PARAM_INT_ARRAY)))
+			->orderBy('thread_count', 'DESC')
+			->setMaxResults($limit);
+
+		return $this->findEntities($qb);
+	}
+
 	/**
 	 * Move all categories from one header to another
 	 *

lib/Db/PostMapper.php

@@ -336,6 +336,33 @@ class PostMapper extends QBMapper {
 		return (int)($row['position'] ?? 0);
 	}
 
+	/**
+	 * Find recent replies (non-first posts) in specified categories
+	 *
+	 * @param array<int> $categoryIds Category IDs to filter by
+	 * @param int $limit Maximum results
+	 * @return array<Post>
+	 */
+	public function findRecentReplies(array $categoryIds, int $limit = 7): array {
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('p.*')
+			->from($this->getTableName(), 'p')
+			->innerJoin('p', 'forum_threads', 't', $qb->expr()->eq('p.thread_id', 't.id'))
+			->where($qb->expr()->in('t.category_id', $qb->createNamedParameter($categoryIds, IQueryBuilder::PARAM_INT_ARRAY)))
+			->andWhere($qb->expr()->eq('p.is_first_post', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL)))
+			->andWhere($qb->expr()->isNull('p.deleted_at'))
+			->andWhere($qb->expr()->isNull('t.deleted_at'))
+			->andWhere($qb->expr()->eq('t.is_hidden', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL)))
+			->orderBy('p.created_at', 'DESC')
+			->setMaxResults($limit);
+
+		return $this->findEntities($qb);
+	}
+
 	/**
 	 * Search posts by content (replies only, excluding first posts)
 	 *

lib/Db/ThreadMapper.php

@@ -220,6 +220,54 @@ class ThreadMapper extends QBMapper {
 		return $this->findEntities($qb);
 	}
 
+	/**
+	 * Find recent threads in specified categories
+	 *
+	 * @param array<int> $categoryIds Category IDs to filter by
+	 * @param int $limit Maximum results
+	 * @return array<Thread>
+	 */
+	public function findRecentThreads(array $categoryIds, int $limit = 7): array {
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from($this->getTableName())
+			->where($qb->expr()->in('category_id', $qb->createNamedParameter($categoryIds, IQueryBuilder::PARAM_INT_ARRAY)))
+			->andWhere($qb->expr()->eq('is_hidden', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL)))
+			->andWhere($qb->expr()->isNull('deleted_at'))
+			->orderBy('created_at', 'DESC')
+			->setMaxResults($limit);
+
+		return $this->findEntities($qb);
+	}
+
+	/**
+	 * Find top threads by view count in specified categories
+	 *
+	 * @param array<int> $categoryIds Category IDs to filter by
+	 * @param int $limit Maximum results
+	 * @return array<Thread>
+	 */
+	public function findTopByViews(array $categoryIds, int $limit = 7): array {
+		if (empty($categoryIds)) {
+			return [];
+		}
+
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from($this->getTableName())
+			->where($qb->expr()->in('category_id', $qb->createNamedParameter($categoryIds, IQueryBuilder::PARAM_INT_ARRAY)))
+			->andWhere($qb->expr()->eq('is_hidden', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL)))
+			->andWhere($qb->expr()->isNull('deleted_at'))
+			->orderBy('view_count', 'DESC')
+			->setMaxResults($limit);
+
+		return $this->findEntities($qb);
+	}
+
 	/**
 	 * Search threads by title and first post content
 	 *