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//
// TunnelObfuscationSettingsWatchingObservableObject.swift
// MullvadVPN
//
// Created by Andrew Bulhak on 2024-11-07.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
import Foundation
import MullvadSettings
/// a generic ObservableObject that binds to obfuscation settings in TunnelManager.
/// Used as the basis for ViewModels for SwiftUI interfaces for these settings.
class TunnelObfuscationSettingsWatchingObservableObject<T: Equatable>: ObservableObject {
let tunnelManager: TunnelManager
let keyPath: WritableKeyPath<WireGuardObfuscationSettings, T>
private var tunnelObserver: TunnelObserver?
@Published var value: T
init(tunnelManager: TunnelManager, keyPath: WritableKeyPath<WireGuardObfuscationSettings, T>) {
self.tunnelManager = tunnelManager
self.keyPath = keyPath
self.value = tunnelManager.settings.wireGuardObfuscation[keyPath: keyPath]
tunnelObserver =
TunnelBlockObserver(didUpdateTunnelSettings: { [weak self] _, newSettings in
guard let self else { return }
updateValueFromSettings(newSettings.wireGuardObfuscation)
})
}
private func updateValueFromSettings(_ settings: WireGuardObfuscationSettings) {
let newValue = settings[keyPath: keyPath]
if value != newValue {
value = newValue
}
}
// Commit the temporarily stored value upstream
func commit() {
var obfuscationSettings = tunnelManager.settings.wireGuardObfuscation
obfuscationSettings[keyPath: keyPath] = value
tunnelManager.updateSettings([.obfuscation(obfuscationSettings)])
}
}
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