ViewState+SwiftUI.swift

import SwiftUI
import BrighterModel

final class ViewState: ObservableObject  {
    @Published var lights   : [ Light    ] = []
    @Published var rooms    : [ Room     ] = []
    @Published var favorites: [ Favorite ] = []

    init(store: Store) {
        store.updated { self.process(state(in: store)) }
        process(state(in: store))
    }

    private func process(_ appState: AppState) {
        DispatchQueue.main.async {
            self.lights = appState.lights.sorted(on:\.name, by:<)
            self.rooms  = appState.rooms.sorted(on:\.title, by:<)
            self.favorites  = appState.favorites
        }
    }
}