//
//  VisibilityItem+ViewModel.swift
//  Passepartout
//
//  Created by Davide De Rosa on 7/3/22.
//  Copyright (c) 2022 Davide De Rosa. All rights reserved.
//
//  https://github.com/passepartoutvpn
//
//  This file is part of Passepartout.
//
//  Passepartout is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  Passepartout is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with Passepartout.  If not, see <http://www.gnu.org/licenses/>.
//

import Foundation
import AppKit

extension VisibilityItem {
    class ViewModel {
        private let transformer: ObservableProcessTransformer
        
        private let utils: LightUtils

        private let titleBlock: (Bool) -> String

        init(utils: LightUtils, titleBlock: @escaping (Bool) -> String) {
            self.titleBlock = titleBlock

            transformer = .shared
            self.utils = utils
        }

        var title: String {
            titleBlock(transformer.isForeground)
        }
        
        @objc func toggleForeground() {
            transformer.toggleForeground()
            if transformer.isForeground {
                utils.requestScene()
            }
        }
        
        func subscribe(_ block: @escaping () -> Void) {
            transformer.subscribe(block)
        }
    }
}