element-ios/RiotSwiftUI/Modules/Template/TemplateAdvancedRoomsExample/TemplateRoomList/TemplateRoomListViewModel.s...

58 lines
1.7 KiB
Swift

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import Combine
import SwiftUI
typealias TemplateRoomListViewModelType = StateStoreViewModel<TemplateRoomListViewState, TemplateRoomListViewAction>
class TemplateRoomListViewModel: TemplateRoomListViewModelType, TemplateRoomListViewModelProtocol {
private let templateRoomListService: TemplateRoomListServiceProtocol
var callback: ((TemplateRoomListViewModelAction) -> Void)?
init(templateRoomListService: TemplateRoomListServiceProtocol) {
self.templateRoomListService = templateRoomListService
super.init(initialViewState: Self.defaultState(templateRoomListService: templateRoomListService))
startObservingRooms()
}
private static func defaultState(templateRoomListService: TemplateRoomListServiceProtocol) -> TemplateRoomListViewState {
TemplateRoomListViewState(rooms: templateRoomListService.roomsSubject.value)
}
private func startObservingRooms() {
templateRoomListService
.roomsSubject
.sink { [weak self] rooms in
self?.state.rooms = rooms
}
.store(in: &cancellables)
}
// MARK: - Public
override func process(viewAction: TemplateRoomListViewAction) {
switch viewAction {
case .didSelectRoom(let roomId):
didSelect(by: roomId)
case .done:
done()
}
}
// MARK: - Private
private func done() {
callback?(.done)
}
private func didSelect(by roomId: String) {
callback?(.didSelectRoom(roomId))
}
}