From c0dda46ce1f5ce9512791dbd56aeffabc6054f6d Mon Sep 17 00:00:00 2001
From: Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
Date: Tue, 26 Sep 2023 11:07:49 +0200
Subject: [PATCH] feat(caldav): Allow advanced search for events/tasks

Signed-off-by: Benjamin Gaussorgues <benjamin.gaussorgues@nextcloud.com>
---
 apps/dav/lib/CalDAV/CalDavBackend.php        | 8 +++++++-
 apps/dav/lib/Search/EventsSearchProvider.php | 5 +++--
 apps/dav/lib/Search/TasksSearchProvider.php  | 5 +++--
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 5f2fe7e5dcead..25d60e8d4e920 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -2155,6 +2155,12 @@ public function searchPrincipalUri(string $principalUri,
 			if (isset($options['offset'])) {
 				$calendarObjectIdQuery->setFirstResult($options['offset']);
 			}
+			if (isset($options['t_since'])) {
+				$calendarObjectIdQuery->andWhere($calendarObjectIdQuery->expr()->lte('co.lastoccurence', $calendarObjectIdQuery->createNamedParameter($options['t_start']->value->getTimestamp())));
+			}
+			if (isset($options['t_until'])) {
+				$calendarObjectIdQuery->andWhere($calendarObjectIdQuery->expr()->gte('co.firstoccurence', $calendarObjectIdQuery->createNamedParameter($options['t_end']->value->getTimestamp())));
+			}
 
 			$result = $calendarObjectIdQuery->executeQuery();
 			$matches = $result->fetchAll();
@@ -3183,7 +3189,7 @@ public function pruneOutdatedSyncTokens(int $keep = 10_000): int {
 		$maxId = (int) $result->fetchOne();
 		$result->closeCursor();
 		if (!$maxId || $maxId < $keep) {
-		    return 0;
+			return 0;
 		}
 
 		$query = $this->db->getQueryBuilder();
diff --git a/apps/dav/lib/Search/EventsSearchProvider.php b/apps/dav/lib/Search/EventsSearchProvider.php
index 07fc90397ed2d..bfe764d7e9e53 100644
--- a/apps/dav/lib/Search/EventsSearchProvider.php
+++ b/apps/dav/lib/Search/EventsSearchProvider.php
@@ -42,7 +42,6 @@
  * @package OCA\DAV\Search
  */
 class EventsSearchProvider extends ACalendarSearchProvider {
-
 	/**
 	 * @var string[]
 	 */
@@ -107,13 +106,15 @@ public function search(IUser $user,
 
 		$searchResults = $this->backend->searchPrincipalUri(
 			$principalUri,
-			$query->getTerm(),
+			$query->getFilter('term', ''),
 			[self::$componentType],
 			self::$searchProperties,
 			self::$searchParameters,
 			[
 				'limit' => $query->getLimit(),
 				'offset' => $query->getCursor(),
+				'start' => $query->getFilter('start', null),
+				'end' => $query->getFilter('end', null),
 			]
 		);
 		$formattedResults = \array_map(function (array $eventRow) use ($calendarsById, $subscriptionsById):SearchResultEntry {
diff --git a/apps/dav/lib/Search/TasksSearchProvider.php b/apps/dav/lib/Search/TasksSearchProvider.php
index 763720ee4ae0a..12bfc0f62e21f 100644
--- a/apps/dav/lib/Search/TasksSearchProvider.php
+++ b/apps/dav/lib/Search/TasksSearchProvider.php
@@ -41,7 +41,6 @@
  * @package OCA\DAV\Search
  */
 class TasksSearchProvider extends ACalendarSearchProvider {
-
 	/**
 	 * @var string[]
 	 */
@@ -100,13 +99,15 @@ public function search(IUser $user,
 
 		$searchResults = $this->backend->searchPrincipalUri(
 			$principalUri,
-			$query->getTerm(),
+			$query->getFilter('term', ''),
 			[self::$componentType],
 			self::$searchProperties,
 			self::$searchParameters,
 			[
 				'limit' => $query->getLimit(),
 				'offset' => $query->getCursor(),
+				'start' => $query->getFilter('start'),
+				'end' => $query->getFilter('end'),
 			]
 		);
 		$formattedResults = \array_map(function (array $taskRow) use ($calendarsById, $subscriptionsById):SearchResultEntry {