@main
struct TestApp: App {
    @ObservedObject var reachability: Reachability = .init()
    var body: some Scene {
        WindowGroup {
            ContentView()
                .environmentObject(reachability)
                .onAppear {
                    reachability.start()
                }
        }
    }
}

struct ContentView: View {
    var body: some View {
        ReachabilityView { (status: Status) in
            // some presentation logic
        }
        .onChangeStatus { status in
            // some business logic associated with status changes
        }
        .onChangeInterfaceType { interfaceType in
            // some business logic associated with interface type changes
        }
        .onChangePath { path in
            // some business logic associated with path changes
        }
    }
}

// use it when you are only interested in status
ReachabilityView { (status: Status) in
    // some presentation logic associated with status changes
}

// use it when you are only interested in interface type
ReachabilityView { (interfaceType: InterfaceType) in
    // some presentation logic associated with interface changes
}

// use it when you are interested in both of status and interface type
ReachabilityView { (status: Status, interfaceType: InterfaceType) in
    // some presentation logic associated with status and interface type changes
}

// use it when you need to know the whole network path object
ReachabilityView { (path: NWPath) in
    // some presentation logic associated with network path
}

struct ContentView: View {
    @StateObject var reachability: Reachability = .init()
    var body: some View {
        Group {
            switch reachability.status {
            case .satisfied: Text("Connected!")
            default: Text("Not Connected!")
            }
        }
        .onAppear {
            reachability.start()
        }
        .onDisappear {
            reachability.stop()
        }
        .onChangeInterfaceType(reachability) { interfaceType in
            // some business logic
        }
    }
}