Detect Apple Remote model

AppleRemote.swift

//
//  AppleRemote.swift
//  HomeCamTV2
//
//  Created by Aaron Pearce on 18/02/22.
//  Copyright © 2022 Pearce Media Limited. All rights reserved.
//

import GameController

class AppleRemote {
    static let shared = AppleRemote()
    
    var current: Model = .siriRemoteG2

    enum Model {
        case siriRemoteG1
        case siriRemoteG2
        case controlCenterRemote
        
        enum BackButtonStyle: String {
            case menu, back
        }
        
        var description: String {
            switch self {
            case .siriRemoteG1:
                return "Siri Remote (1st Generation)"
            case .siriRemoteG2:
                return "Siri Remote (2nd Generation)"
            case .controlCenterRemote:
                return "Control Center Remote"
            }
        }
        
        var backButtonStyle: BackButtonStyle {
            switch self {
            case .siriRemoteG1:
                return .menu
            case .siriRemoteG2, .controlCenterRemote:
                return .back
            }
        }
    }
    
    init() {
        registerForGameControllerNotifications()
        
        if let controller = GCController.current {
            updateCurrent(for: controller)
        }
    }
    
    private func registerForGameControllerNotifications() {
        NotificationCenter.default.addObserver(self, selector: #selector(didBecomeCurrent(_:)), name: .GCControllerDidBecomeCurrent, object: nil)
    }
    
    @objc private func didBecomeCurrent(_ notification: Notification) {
        guard let controller = notification.object as? GCController else {
            return
        }
        
        updateCurrent(for: controller)
    }
    
    private func updateCurrent(for controller: GCController) {
        guard controller.microGamepad != nil else {
            return
        }
      
        if #available(tvOS 15.0, *) {
            switch controller.productCategory {
            case GCProductCategorySiriRemote1stGen:
                self.current = .siriRemoteG1
            case GCProductCategorySiriRemote2ndGen:
                self.current = .siriRemoteG2
            case GCProductCategoryControlCenterRemote:
                self.current = .controlCenterRemote
            default:
                self.current = .siriRemoteG2
            }
        } else {
            if controller.motion != nil {
                self.current = .siriRemoteG1
            } else {
                self.current = .siriRemoteG2
            }
        }

    }
}