From 52d3c74751b69e3d58807d105c6af6cf11a39616 Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Thu, 18 Feb 2021 13:30:18 +0100
Subject: [PATCH] Don't load the session by default on getParticipantsForRoom

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/Command/Room/TRoomCommand.php  | 11 +++--------
 lib/Controller/RoomController.php  |  4 ++--
 lib/Service/ParticipantService.php | 14 +++++++++-----
 lib/Signaling/Listener.php         |  2 +-
 4 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/lib/Command/Room/TRoomCommand.php b/lib/Command/Room/TRoomCommand.php
index 13f6d4efd14..c159c8b6c94 100644
--- a/lib/Command/Room/TRoomCommand.php
+++ b/lib/Command/Room/TRoomCommand.php
@@ -406,14 +406,9 @@ protected function completeParticipantValues(CompletionContext $context): array
 			return [];
 		}
 
-		$users = [];
-		$participants = $this->participantService->getParticipantsForRoom($room);
-		foreach ($participants as $participant) {
-			if ($participant->getAttendee()->getActorType() === Attendee::ACTOR_USERS
-				&& stripos($participant->getAttendee()->getActorId(), $context->getCurrentWord()) !== false) {
-				$users[] = $participant->getAttendee()->getActorId();
-			}
-		}
+		$users = array_filter($this->participantService->getParticipantUserIds($room), static function ($userId) use ($context) {
+			return stripos($userId, $context->getCurrentWord()) !== false;
+		});
 
 		return $users;
 	}
diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index 6d3b0e8e626..261aa0f6df2 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -477,7 +477,7 @@ protected function formatRoomV1(Room $room, ?Participant $currentParticipant): a
 		$numActiveGuests = 0;
 		$cleanGuests = false;
 		$participantList = [];
-		$participants = $this->participantService->getParticipantsForRoom($room);
+		$participants = $this->participantService->getParticipantsForRoom($room, true); // FIXME NEEDS the session but can potentially kill APIv1?
 		uasort($participants, function (Participant $participant1, Participant $participant2) {
 			$s1 = $participant1->getSession() ? $participant1->getSession()->getLastPing() : 0;
 			$s2 = $participant2->getSession() ? $participant2->getSession()->getLastPing() : 0;
@@ -1110,7 +1110,7 @@ public function getParticipants(bool $includeStatus = false): DataResponse {
 		}
 
 		$maxPingAge = $this->timeFactory->getTime() - 100;
-		$participants = $this->participantService->getParticipantsForRoom($this->room);
+		$participants = $this->participantService->getParticipantsForRoom($this->room, true); // FIXME should return some what session info?
 		$results = $headers = $statuses = [];
 
 		if ($this->userId !== null
diff --git a/lib/Service/ParticipantService.php b/lib/Service/ParticipantService.php
index a788d009ca2..ddae0f8bb1e 100644
--- a/lib/Service/ParticipantService.php
+++ b/lib/Service/ParticipantService.php
@@ -583,21 +583,25 @@ public function getLastCommonReadChatMessageForMultipleRooms(array $roomIds): ar
 
 	/**
 	 * @param Room $room
+	 * @param bool $loadSession Loads a random session if possible for the users
 	 * @return Participant[]
 	 */
-	public function getParticipantsForRoom(Room $room): array {
+	public function getParticipantsForRoom(Room $room, bool $loadSession = false): array {
 		// FIXME Need to make sure a user is skipped when at least one session is in the call
 		$query = $this->connection->getQueryBuilder();
 
 		$helper = new SelectHelper();
 		$helper->selectAttendeesTable($query);
-		$helper->selectSessionsTable($query);
 		$query->from('talk_attendees', 'a')
-			->leftJoin(
+			->where($query->expr()->eq('a.room_id', $query->createNamedParameter($room->getId(), IQueryBuilder::PARAM_INT)));
+
+		if ($loadSession) {
+			$helper->selectSessionsTable($query);
+			$query->leftJoin(
 				'a', 'talk_sessions', 's',
 				$query->expr()->eq('s.attendee_id', 'a.id')
-			)
-			->where($query->expr()->eq('a.room_id', $query->createNamedParameter($room->getId(), IQueryBuilder::PARAM_INT)));
+			);
+		}
 
 		return $this->getParticipantsFromQuery($query, $room);
 	}
diff --git a/lib/Signaling/Listener.php b/lib/Signaling/Listener.php
index d5625d1676a..44fe64724bf 100644
--- a/lib/Signaling/Listener.php
+++ b/lib/Signaling/Listener.php
@@ -103,7 +103,7 @@ protected static function registerInternalSignaling(IEventDispatcher $dispatcher
 			/** @var ParticipantService $participantService */
 			$participantService = \OC::$server->query(ParticipantService::class);
 
-			$participants = $participantService->getParticipantsForRoom($room);
+			$participants = $participantService->getParticipantsForAllSessions($room);
 			foreach ($participants as $participant) {
 				$session = $participant->getSession();
 				if ($session instanceof Session) {