jellyflood/Shared/ViewModels/ItemAdministration/DeleteItemViewModel.swift

107 lines
2.6 KiB
Swift

//
// Swiftfin is subject to the terms of the Mozilla Public
// License, v2.0. If a copy of the MPL was not distributed with this
// file, you can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2024 Jellyfin & Jellyfin Contributors
//
import Combine
import Foundation
import JellyfinAPI
class DeleteItemViewModel: ViewModel, Stateful, Eventful {
// MARK: - Events
enum Event: Equatable {
case deleted
case error(JellyfinAPIError)
}
// MARK: - Action
enum Action: Equatable {
case delete
}
// MARK: - State
enum State: Hashable {
case initial
case error(JellyfinAPIError)
}
@Published
final var state: State = .initial
// MARK: - Published Item
@Published
var item: BaseItemDto?
// MARK: Event Variables
private var deleteTask: AnyCancellable?
private var eventSubject: PassthroughSubject<Event, Never> = .init()
var events: AnyPublisher<Event, Never> {
eventSubject
.eraseToAnyPublisher()
// Causes issues with the Deleted Event unless this is removed
// .receive(on: RunLoop.main)
}
// MARK: - Initializer
init(item: BaseItemDto) {
self.item = item
super.init()
}
// MARK: - Respond
func respond(to action: Action) -> State {
switch action {
case .delete:
deleteTask?.cancel()
deleteTask = Task { [weak self] in
guard let self = self else { return }
do {
try await self.deleteItem()
await MainActor.run {
self.state = .initial
self.eventSubject.send(.deleted)
}
} catch {
guard !Task.isCancelled else { return }
await MainActor.run {
self.state = .error(JellyfinAPIError(error.localizedDescription))
self.eventSubject.send(.error(JellyfinAPIError(error.localizedDescription)))
}
}
}
.asAnyCancellable()
return .initial
}
}
// MARK: - Item Deletion Logic
private func deleteItem() async throws {
guard let item, let itemID = item.id else {
throw JellyfinAPIError(L10n.unknownError)
}
let request = Paths.deleteItem(itemID: itemID)
_ = try await userSession.client.send(request)
await MainActor.run {
Notifications[.didDeleteItem].post(itemID)
self.item = nil
}
}
}