passepartout-apple/Library/Sources/UILibrary/Domain/OnboardingStep.swift

//
//  OnboardingStep.swift
//  Passepartout
//
//  Created by Davide De Rosa on 11/25/24.
//  Copyright (c) 2024 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

// order matters
public enum OnboardingStep: String, RawRepresentable, CaseIterable {
    case migrateV3

    case community

    case doneV3
}

extension Optional where Wrapped == OnboardingStep {
    public var nextStep: OnboardingStep? {
        let all = OnboardingStep.allCases
        guard let self else {
            return all.first
        }
        guard let index = all.firstIndex(of: self) else {
            fatalError("How can self not be part of allCases?")
        }
        guard index < all.count - 1 else {
            return self
        }
        return all[index + 1]
    }
}