move read_receipt feature up one level out of rooms.edus.

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

src/service/rooms/read_receipt/data.rs

@@ -0,0 +1,28 @@
+use ruma::{
+	events::{receipt::ReceiptEvent, AnySyncEphemeralRoomEvent},
+	serde::Raw,
+	OwnedUserId, RoomId, UserId,
+};
+
+use crate::Result;
+
+type AnySyncEphemeralRoomEventIter<'a> =
+	Box<dyn Iterator<Item = Result<(OwnedUserId, u64, Raw<AnySyncEphemeralRoomEvent>)>> + 'a>;
+
+pub trait Data: Send + Sync {
+	/// Replaces the previous read receipt.
+	fn readreceipt_update(&self, user_id: &UserId, room_id: &RoomId, event: ReceiptEvent) -> Result<()>;
+
+	/// Returns an iterator over the most recent read_receipts in a room that
+	/// happened after the event with id `since`.
+	fn readreceipts_since(&self, room_id: &RoomId, since: u64) -> AnySyncEphemeralRoomEventIter<'_>;
+
+	/// Sets a private read marker at `count`.
+	fn private_read_set(&self, room_id: &RoomId, user_id: &UserId, count: u64) -> Result<()>;
+
+	/// Returns the private read marker.
+	fn private_read_get(&self, room_id: &RoomId, user_id: &UserId) -> Result<Option<u64>>;
+
+	/// Returns the count of the last typing update in this room.
+	fn last_privateread_update(&self, user_id: &UserId, room_id: &RoomId) -> Result<u64>;
+}