Can get spaces hierarchy

matrixgw_backend/src/controllers/matrix/matrix_space_controller.rs

@@ -0,0 +1,32 @@
+use crate::controllers::HttpResult;
+use crate::extractors::matrix_client_extractor::MatrixClientExtractor;
+use actix_web::HttpResponse;
+use matrix_sdk_ui::spaces::SpaceService;
+use matrix_sdk_ui::spaces::room_list::SpaceRoomListPaginationState;
+use std::collections::HashMap;
+
+/// Get space hierarchy
+pub async fn hierarchy(client: MatrixClientExtractor) -> HttpResult {
+    let space_service = SpaceService::new(client.client.client);
+    let spaces = space_service.joined_spaces().await;
+    let mut hierarchy = HashMap::new();
+    for space in spaces {
+        let rooms = space_service.space_room_list(space.room_id.to_owned());
+        while !matches!(
+            rooms.pagination_state(),
+            SpaceRoomListPaginationState::Idle { end_reached: true }
+        ) {
+            rooms.paginate().await?;
+        }
+
+        hierarchy.insert(
+            space.room_id.to_owned(),
+            rooms
+                .rooms()
+                .into_iter()
+                .map(|room| room.room_id)
+                .collect::<Vec<_>>(),
+        );
+    }
+    Ok(HttpResponse::Ok().json(hierarchy))
+}