//
//  UIDevice+Ext.swift
//  GME Remit
//
//  Created by InKwon James Kim on 19/08/2019.
//  Copyright © 2019 Gobal Money Express Co. Ltd. All rights reserved.
//

import SystemConfiguration
import UIKit

public extension UIDevice {
  static let modelName: String = {
    var systemInfo = utsname()
    uname(&systemInfo)
    let machineMirror = Mirror(reflecting: systemInfo.machine)
    let identifier = machineMirror.children.reduce("") { identifier, element in
      guard let value = element.value as? Int8, value != 0 else { return identifier }
      return identifier + String(UnicodeScalar(UInt8(value)))
    }
    
    func mapToDevice(identifier: String) -> String {
      #if os(iOS)
      switch identifier {
      case "iPod5,1":
        return "iPod Touch 5"
      case "iPod7,1":
        return "iPod Touch 6"
      case "iPhone3,1", "iPhone3,2", "iPhone3,3":
        return "iPhone 4"
      case "iPhone4,1":
        return "iPhone 4s"
      case "iPhone5,1", "iPhone5,2":
        return "iPhone 5"
      case "iPhone5,3", "iPhone5,4":
        return "iPhone 5c"
      case "iPhone6,1", "iPhone6,2":
        return "iPhone 5s"
      case "iPhone7,2":
        return "iPhone 6"
      case "iPhone7,1":
        return "iPhone 6 Plus"
      case "iPhone8,1":
        return "iPhone 6s"
      case "iPhone8,2":
        return "iPhone 6s Plus"
      case "iPhone9,1", "iPhone9,3":
        return "iPhone 7"
      case "iPhone9,2", "iPhone9,4":
        return "iPhone 7 Plus"
      case "iPhone8,4":
        return "iPhone SE"
      case "iPhone10,1", "iPhone10,4":
        return "iPhone 8"
      case "iPhone10,2", "iPhone10,5":
        return "iPhone 8 Plus"
      case "iPhone10,3", "iPhone10,6":
        return "iPhone X"
      case "iPhone11,2":
        return "iPhone XS"
      case "iPhone11,4", "iPhone11,6":
        return "iPhone XS Max"
      case "iPhone11,8":
        return "iPhone XR"
      case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":
        return "iPad 2"
      case "iPad3,1", "iPad3,2", "iPad3,3":
        return "iPad 3"
      case "iPad3,4", "iPad3,5", "iPad3,6":
        return "iPad 4"
      case "iPad4,1", "iPad4,2", "iPad4,3":
        return "iPad Air"
      case "iPad5,3", "iPad5,4":
        return "iPad Air 2"
      case "iPad6,11", "iPad6,12":
        return "iPad 5"
      case "iPad7,5", "iPad7,6":
        return "iPad 6"
      case "iPad2,5", "iPad2,6", "iPad2,7":
        return "iPad Mini"
      case "iPad4,4", "iPad4,5", "iPad4,6":
        return "iPad Mini 2"
      case "iPad4,7", "iPad4,8", "iPad4,9":
        return "iPad Mini 3"
      case "iPad5,1", "iPad5,2":
        return "iPad Mini 4"
      case "iPad6,3", "iPad6,4":
        return "iPad Pro (9.7-inch)"
      case "iPad6,7", "iPad6,8":
        return "iPad Pro (12.9-inch)"
      case "iPad7,1", "iPad7,2":
        return "iPad Pro (12.9-inch) (2nd generation)"
      case "iPad7,3", "iPad7,4":
        return "iPad Pro (10.5-inch)"
      case "iPad8,1", "iPad8,2", "iPad8,3", "iPad8,4":
        return "iPad Pro (11-inch)"
      case "iPad8,5", "iPad8,6", "iPad8,7", "iPad8,8":
        return "iPad Pro (12.9-inch) (3rd generation)"
      case "AppleTV5,3":
        return "Apple TV"
      case "AppleTV6,2":
        return "Apple TV 4K"
      case "AudioAccessory1,1":
        return "HomePod"
      case "i386", "x86_64":
        let info = mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "iOS")
        return "Simulator \(info)"
      default:
        return identifier
      }
      #elseif os(tvOS)
      switch identifier {
      case "AppleTV5,3":
        return "Apple TV 4"
      case "AppleTV6,2":
        return "Apple TV 4K"
      case "i386", "x86_64":
        let info = mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "tvOS")
        return "Simulator \(info)"
      default: return identifier
      }
      #endif
    }
    
    return mapToDevice(identifier: identifier)
  }()
}