BetaFeature.swift

import Storage

enum BetaFeature: CaseIterable {
    case viewAddOns
    case productSKUScanner
    case couponManagement
}

extension BetaFeature {
    var title: String {
        switch self {
        case .viewAddOns:
            return NSLocalizedString(
                "View Add-Ons",
                comment: "Cell title on the beta features screen to enable the order add-ons feature")
        case .productSKUScanner:
            return NSLocalizedString(
                "Product SKU Scanner",
                comment: "Cell title on beta features screen to enable product SKU input scanner in inventory settings.")
        case .couponManagement:
            return NSLocalizedString(
                "Coupon Management",
                comment: "Cell title on beta features screen to enable coupon management")
        }
    }

    var description: String {
        switch self {
        case .viewAddOns:
            return NSLocalizedString(
                "Test out viewing Order Add-Ons as we get ready to launch",
                comment: "Cell description on the beta features screen to enable the order add-ons feature")
        case .productSKUScanner:
            return NSLocalizedString(
                "Test out scanning a barcode for a product SKU in the product inventory settings",
                comment: "Cell description on beta features screen to enable product SKU input scanner in inventory settings.")
        case .couponManagement:
            return NSLocalizedString(
                "Test out managing coupons as we get ready to launch",
                comment: "Cell description on beta features screen to enable coupon management")
        }
    }

    var settingsKey: KeyPath<GeneralAppSettings, Bool> {
        switch self {
        case .viewAddOns:
            return \.isViewAddOnsSwitchEnabled
        case .productSKUScanner:
            return \.isProductSKUInputScannerSwitchEnabled
        case .couponManagement:
            return \.isCouponManagementSwitchEnabled
        }
    }
}

extension BetaFeature {
    var isEnabled: Bool {
        // TODO: actually load settings from storage
        let settings = GeneralAppSettings(installationDate: nil, feedbacks: [:], isViewAddOnsSwitchEnabled: true, isProductSKUInputScannerSwitchEnabled: true, isCouponManagementSwitchEnabled: true, knownCardReaders: [])
        return settings[keyPath: settingsKey]
    }

    func isEnabledBinding() -> Binding<Bool> {
        return Binding {
            isEnabled
        } set: { value in
            // TODO
        }

    }
}

extension BetaFeature: Identifiable {
    var id: String {
        description
    }
}

BetaFeaturesConfiguration.swift

import SwiftUI
import Yosemite

struct BetaFeaturesConfiguration: View {
    var body: some View {
        List {
            ForEach(BetaFeature.allCases) { feature in
                Section(footer: Text(feature.description)) {
                    Toggle(feature.title, isOn: feature.isEnabledBinding())
                }
            }
        }
        .listStyle(.grouped)
    }
}

struct BetaFeaturesConfiguration_Previews: PreviewProvider {
    static var previews: some View {
        BetaFeaturesConfiguration()
    }
}