Files
letro-ios/ElementX/Sources/Services/Spaces/SpaceRoomListProxy.swift
2026-01-27 12:50:57 +02:00

104 lines
3.9 KiB
Swift

//
// Copyright 2025 Element Creations Ltd.
// Copyright 2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//
import Combine
import MatrixRustSDK
class SpaceRoomListProxy: SpaceRoomListProxyProtocol {
var id: String {
spaceServiceRoomPublisher.value.id
}
private let spaceRoomList: SpaceRoomListProtocol
private var spaceServiceRoomHandle: TaskHandle?
private let spaceServiceRoomSubject: CurrentValueSubject<SpaceServiceRoom, Never>
var spaceServiceRoomPublisher: CurrentValuePublisher<SpaceServiceRoom, Never> {
spaceServiceRoomSubject.asCurrentValuePublisher()
}
private var spaceRoomsHandle: TaskHandle?
private let spaceRoomsSubject = CurrentValueSubject<[SpaceServiceRoom], Never>([])
var spaceRoomsPublisher: CurrentValuePublisher<[SpaceServiceRoom], Never> {
spaceRoomsSubject.asCurrentValuePublisher()
}
private let paginationStateHandle: TaskHandle
let paginationStatePublisher: CurrentValuePublisher<SpaceRoomListPaginationState, Never>
init(_ spaceRoomList: SpaceRoomListProtocol) throws {
guard let spaceRoom = spaceRoomList.space() else { throw SpaceRoomListProxyError.missingSpace }
self.spaceRoomList = spaceRoomList
spaceServiceRoomSubject = .init(SpaceServiceRoom(spaceRoom: spaceRoom))
let paginationStateSubject = CurrentValueSubject<SpaceRoomListPaginationState, Never>(spaceRoomList.paginationState())
paginationStatePublisher = paginationStateSubject.asCurrentValuePublisher()
paginationStateHandle = spaceRoomList.subscribeToPaginationStateUpdates(listener: SDKListener { paginationState in
paginationStateSubject.send(paginationState)
})
spaceRoomsHandle = spaceRoomList.subscribeToRoomUpdate(listener: SDKListener { [weak self] updates in
self?.handleUpdates(updates)
})
spaceServiceRoomHandle = spaceRoomList.subscribeToSpaceUpdates(listener: SDKListener { [weak self] spaceRoom in
guard let spaceRoom else { return }
self?.spaceServiceRoomSubject.send(SpaceServiceRoom(spaceRoom: spaceRoom))
})
}
func paginate() async {
do {
try await spaceRoomList.paginate()
} catch {
MXLog.error("Pagination failure: \(error)")
}
}
func reset() async {
await spaceRoomList.reset()
}
// MARK: - Private
private func handleUpdates(_ updates: [SpaceListUpdate]) {
var rooms = spaceRoomsSubject.value
for update in updates {
switch update {
case .append(let spaceRooms):
rooms.append(contentsOf: spaceRooms.map(SpaceServiceRoom.init))
case .clear:
rooms.removeAll()
case .pushFront(let spaceRoom):
rooms.insert(SpaceServiceRoom(spaceRoom: spaceRoom), at: 0)
case .pushBack(let spaceRoom):
rooms.append(SpaceServiceRoom(spaceRoom: spaceRoom))
case .popFront:
rooms.removeFirst()
case .popBack:
rooms.removeLast()
case .insert(let index, let spaceRoom):
rooms.insert(SpaceServiceRoom(spaceRoom: spaceRoom), at: Int(index))
case .set(let index, let spaceRoom):
rooms[Int(index)] = SpaceServiceRoom(spaceRoom: spaceRoom)
case .remove(let index):
rooms.remove(at: Int(index))
case .truncate(let length):
rooms.removeSubrange(Int(length)..<rooms.count)
case .reset(let spaceRooms):
rooms = spaceRooms.map(SpaceServiceRoom.init)
}
}
spaceRoomsSubject.send(rooms)
}
}