element-ios/RiotSwiftUI/Modules/Authentication/QRLogin/Scan/AuthenticationQRLoginScanVi...

68 lines
1.9 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 AuthenticationQRLoginScanViewModelType = StateStoreViewModel<AuthenticationQRLoginScanViewState, AuthenticationQRLoginScanViewAction>
class AuthenticationQRLoginScanViewModel: AuthenticationQRLoginScanViewModelType, AuthenticationQRLoginScanViewModelProtocol {
// MARK: - Properties
// MARK: Private
private let qrLoginService: QRLoginServiceProtocol
// MARK: Public
var callback: ((AuthenticationQRLoginScanViewModelResult) -> Void)?
// MARK: - Setup
init(qrLoginService: QRLoginServiceProtocol) {
self.qrLoginService = qrLoginService
super.init(initialViewState: .init(canShowDisplayQRButton: qrLoginService.canDisplayQR(),
serviceState: .initial))
qrLoginService.callbacks.sink { callback in
switch callback {
case .didUpdateState:
self.processServiceState(qrLoginService.state)
case .didScanQR(let data):
self.callback?(.qrScanned(data))
}
}
.store(in: &cancellables)
processServiceState(qrLoginService.state)
qrLoginService.startScanning()
}
// MARK: - Public
override func process(viewAction: AuthenticationQRLoginScanViewAction) {
switch viewAction {
case .goToSettings:
callback?(.goToSettings)
case .displayQR:
callback?(.displayQR)
}
}
// MARK: - Private
private func processServiceState(_ state: QRLoginServiceState) {
switch state {
case .scanningQR:
self.state.scannerView = qrLoginService.scannerView()
default:
break
}
self.state.serviceState = state
}
}