move and improve common-rooms related

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/client/presence.rs

@@ -52,8 +52,8 @@ pub(crate) async fn get_presence_route(
 
 	let has_shared_rooms = services
 		.rooms
-		.user
-		.has_shared_rooms(sender_user, &body.user_id)
+		.state_cache
+		.user_sees_user(sender_user, &body.user_id)
 		.await;
 
 	if has_shared_rooms {

src/api/client/sync/mod.rs

@@ -52,7 +52,7 @@ async fn share_encrypted_room(
 ) -> bool {
 	services
 		.rooms
-		.user
+		.state_cache
 		.get_shared_rooms(sender_user, user_id)
 		.ready_filter(|&room_id| Some(room_id) != ignore_room)
 		.any(|other_room_id| {

src/api/client/unstable.rs

@@ -55,7 +55,7 @@ pub(crate) async fn get_mutual_rooms_route(
 
 	let mutual_rooms: Vec<OwnedRoomId> = services
 		.rooms
-		.user
+		.state_cache
 		.get_shared_rooms(sender_user, &body.user_id)
 		.map(ToOwned::to_owned)
 		.collect()

src/api/client/user_directory.rs

@@ -71,8 +71,8 @@ pub(crate) async fn search_users_route(
 		} else {
 			let user_is_in_shared_rooms = services
 				.rooms
-				.user
-				.has_shared_rooms(sender_user, &user.user_id)
+				.state_cache
+				.user_sees_user(sender_user, &user.user_id)
 				.await;
 
 			if user_is_in_shared_rooms {