continuwuity/src/database/key_value/rooms/directory.rs

use ruma::{OwnedRoomId, RoomId};

use crate::{database::KeyValueDatabase, service, utils, Error, Result};

impl service::rooms::directory::Data for KeyValueDatabase {
    fn set_public(&self, room_id: &RoomId) -> Result<()> {
        self.publicroomids.insert(room_id.as_bytes(), &[])
    }

    fn set_not_public(&self, room_id: &RoomId) -> Result<()> {
        self.publicroomids.remove(room_id.as_bytes())
    }

    fn is_public_room(&self, room_id: &RoomId) -> Result<bool> {
        Ok(self.publicroomids.get(room_id.as_bytes())?.is_some())
    }

    fn public_rooms<'a>(&'a self) -> Box<dyn Iterator<Item = Result<OwnedRoomId>> + 'a> {
        Box::new(self.publicroomids.iter().map(|(bytes, _)| {
            RoomId::parse(
                utils::string_from_bytes(&bytes).map_err(|_| {
                    Error::bad_database("Room ID in publicroomids is invalid unicode.")
                })?,
            )
            .map_err(|_| Error::bad_database("Room ID in publicroomids is invalid."))
        }))
    }
}