import Foundation
// import Onfido
// 
// public class AppearancePublic: NSObject {
// 
//     public let primaryColor: UIColor
//     public let primaryTitleColor: UIColor
//     public let primaryBackgroundPressedColor: UIColor
//     public let supportDarkMode: Bool
// 
//     public init(
//         primaryColor: UIColor,
//         primaryTitleColor: UIColor,
//         primaryBackgroundPressedColor: UIColor,
//         supportDarkMode: Bool = true) {
//         self.primaryColor = primaryColor
//         self.primaryTitleColor = primaryTitleColor
//         self.primaryBackgroundPressedColor = primaryBackgroundPressedColor
//         self.supportDarkMode = supportDarkMode
//     }
// }
// 
// public func loadAppearance(config: NSDictionary) throws -> AppearancePublic? {
// 
//     if let jsonResult = config as? Dictionary<String, AnyObject> {
//         let primaryColor: UIColor = (jsonResult["onfidoPrimaryColor"] == nil)
//                 ? UIColor.primaryColor : UIColor.from(hex: jsonResult["onfidoPrimaryColor"] as! String)
//         let primaryTitleColor: UIColor = (jsonResult["onfidoPrimaryButtonTextColor"] == nil)
//                 ? UIColor.white : UIColor.from(hex: jsonResult["onfidoPrimaryButtonTextColor"] as! String)
//         let primaryBackgroundPressedColor: UIColor = (jsonResult["onfidoPrimaryButtonColorPressed"] == nil)
//                 ? UIColor.primaryButtonColorPressed : UIColor.from(hex: jsonResult["onfidoPrimaryButtonColorPressed"] as! String)
//         let supportDarkMode: Bool = (jsonResult["onfidoIosSupportDarkMode"] == nil)
//                 ? true : jsonResult["onfidoIosSupportDarkMode"] as! Bool
// 
//       
//         let appearancePublic = AppearancePublic(
//                 primaryColor: primaryColor,
//                 primaryTitleColor: primaryTitleColor,
//                 primaryBackgroundPressedColor: primaryBackgroundPressedColor,
//                 supportDarkMode: supportDarkMode
//         )
//         return appearancePublic
//     } else {
//         return nil
//     }
// }
// 
// public func loadAppearanceFromConfig(config: NSDictionary) throws -> Appearance {
//     let appearancePublic = try loadAppearance(config: config)
// 
//     if let appearancePublic = appearancePublic {
//         return Appearance(
//             primaryColor: appearancePublic.primaryColor,
//             primaryTitleColor: appearancePublic.primaryTitleColor,
//             primaryBackgroundPressedColor: appearancePublic.primaryBackgroundPressedColor,
//             supportDarkMode: appearancePublic.supportDarkMode
//         )
//     } else {
//         return Appearance.default;
//     }
// }
// 
// public func buildOnfidoConfig(config:NSDictionary, appearance: Appearance) throws -> Onfido.OnfidoConfigBuilder {
//   let sdkToken:String = config["sdkToken"] as! String
//   let flowSteps:NSDictionary? = config["flowSteps"] as? NSDictionary
//   let captureDocument:NSDictionary? = flowSteps?["captureDocument"] as? NSDictionary
//   let captureFace:NSDictionary? = flowSteps?["captureFace"] as? NSDictionary
// 
//   var onfidoConfig = OnfidoConfig.builder()
//     .withSDKToken(sdkToken)
//     .withAppearance(appearance)
//  
// 
//   if flowSteps?["welcome"] as? Bool == true {
//     onfidoConfig = onfidoConfig.withWelcomeStep()
//   }
// 
//   if let docType = captureDocument?["docType"] as? String, let countryCode = captureDocument?["countryCode"] as? String {
//      switch docType {
//       case "PASSPORT":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .passport(config: PassportConfiguration()))
//       case "DRIVING_LICENCE":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .drivingLicence(config: DrivingLicenceConfiguration(country: countryCode)))
//       case "NATIONAL_IDENTITY_CARD":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .nationalIdentityCard(config: NationalIdentityConfiguration(country: countryCode)))
//       case "RESIDENCE_PERMIT":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .residencePermit(config: ResidencePermitConfiguration(country: countryCode)))
//       case "VISA":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .visa(config: VisaConfiguration(country: countryCode)))
//       case "WORK_PERMIT":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .workPermit(config: WorkPermitConfiguration(country: countryCode)))
//       case "GENERIC":
//         onfidoConfig = onfidoConfig.withDocumentStep(ofType: .generic(config: GenericDocumentConfiguration(country: countryCode)))
//       default:
//         throw NSError(domain: "Unsupported document type", code: 0)
//     }
//   } else if captureDocument != nil {
//     onfidoConfig = onfidoConfig.withDocumentStep()
//   }
// 
//   if let faceVariant = captureFace?["type"] as? String {
//     if faceVariant == "VIDEO" {
//       onfidoConfig = onfidoConfig.withFaceStep(ofVariant: .video(withConfiguration: VideoStepConfiguration(showIntroVideo: true, manualLivenessCapture: false)))
//     } else if faceVariant == "PHOTO" {
//       onfidoConfig = onfidoConfig.withFaceStep(ofVariant: .photo(withConfiguration: nil))
//     } else {
//       throw NSError(domain: "Invalid or unsupported face variant", code: 0)
//     }
//   }
//   return onfidoConfig;
// }
// 
// @objc(OnfidoSdk)
// class OnfidoSdk: NSObject {
// 
//   @objc static func requiresMainQueueSetup() -> Bool {
//     return false
//   } 
// 
//   @objc func start(_ config: NSDictionary, result: @escaping FlutterResult) -> Void {
//     DispatchQueue.main.async {
//       let withConfig = config["config"] as! NSDictionary
//       let withAppearance = config["appearance"] as! NSDictionary
//       self.run(withConfig: withConfig, withAppearance: withAppearance, result: result)
//     }
//   }
// 
//   private func run(withConfig config: NSDictionary, withAppearance appearanceConfig: NSDictionary, result: @escaping FlutterResult) {
// 
//     do {
//       let appearance = try loadAppearanceFromConfig(config: appearanceConfig)
//       let onfidoConfig = try buildOnfidoConfig(config: config, appearance: appearance)
//       let builtOnfidoConfig = try onfidoConfig.build() 
// 
//       //  Copy the face varient from the config since it is not contained in the response:
//       let flowSteps:NSDictionary? = config["flowSteps"] as? NSDictionary
//       let captureFace:NSDictionary? = flowSteps?["captureFace"] as? NSDictionary
//       let faceVariant = captureFace?["type"] as? String
// 
//       let onfidoFlow = OnfidoFlow(withConfiguration: builtOnfidoConfig)
//         .with(responseHandler: { [weak self] response in 
//           guard let `self` = self else { return }
//           switch response {
//             case let .error(error):
//               result(FlutterError(code: "error", message: "Encountered an error: \(error)", details: nil))
//               return;
//             case let .success(results):
//               result(createResponse(results, faceVariant: faceVariant))
//               return;
//             case .cancel:
//               result(FlutterError(code: "cancel", message: "User canceled flow", details: nil))
//               return;
//             default:
//               result(FlutterError(code: "error", message: "Unknown error has occured", details: nil))
//               return;
//           }
//         })
// 
//       let onfidoRun = try onfidoFlow.run()
//        UIApplication.shared.windows.first?.rootViewController?.present(onfidoRun, animated: true)
//     } catch let error as NSError {
//       result(FlutterError(code: "error", message: error.domain, details: nil))
//       return;
//     } catch {
//       result(FlutterError(code: "error", message: "Error running Onfido SDK", details: nil))
//       return;
//     }
//   }
// }
// 
// extension UIColor {
// 
//     static var primaryColor: UIColor {
//         return decideColor(light: UIColor.from(hex: "#353FF4"), dark: UIColor.from(hex: "#3B43D8"))
//     }
// 
//     static var primaryButtonColorPressed: UIColor {
//         return decideColor(light: UIColor.from(hex: "#232AAD"), dark: UIColor.from(hex: "#5C6CFF"))
//     }
// 
//     private static func decideColor(light: UIColor, dark: UIColor) -> UIColor {
//         #if XCODE11
//         guard #available(iOS 13.0, *) else {
//             return light
//         }
//         return UIColor { (collection) -> UIColor in
//             return collection.userInterfaceStyle == .dark ? dark : light
//         }
//         #else
//         return light
//         #endif
//     }
// 
//     static func from(hex: String) -> UIColor {
// 
//         let hexString = hex.trimmingCharacters(in: .whitespacesAndNewlines)
//         let scanner = Scanner(string: hexString)
// 
//         if hexString.hasPrefix("#") {
//             scanner.scanLocation = 1
//         }
// 
//         var color: UInt32 = 0
//         scanner.scanHexInt32(&color)
// 
//         let mask = 0x000000FF
//         let redInt = Int(color >> 16) & mask
//         let greenInt = Int(color >> 8) & mask
//         let blueInt = Int(color) & mask
// 
//         let red = CGFloat(redInt) / 255.0
//         let green = CGFloat(greenInt) / 255.0
//         let blue = CGFloat(blueInt) / 255.0
// 
//         return UIColor(red: red, green: green, blue: blue, alpha: 1.0)
//     }
// }
// 
// extension Appearance {
// 
//     static let `default` = Appearance(
//             primaryColor: UIColor.primaryColor,
//             primaryTitleColor: UIColor.white,
//             primaryBackgroundPressedColor: UIColor.primaryButtonColorPressed)
// }