LONDON-IOS/GME Remit/Extensions/DataRequest+Ext.swift

//
//  DataRequestExtension.swift
//  GMERemittance
//
//  Created by gme_2 on 22/08/2018.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//
import Foundation
import Alamofire
import ObjectMapper
import SwiftyJSON

enum GMEResponseErrorCode: Int {
  case timeOut = 0
  case failure
  case unknown
  case deleted
}

enum GmeResponseOperationStatusCode: String {
  case successfull = "Operation Successfull"
}

extension DataRequest {
  func handle<T: Mappable>(
    success: @escaping (T) -> Void,
    failure: @escaping  (Error) -> Void
  ) {
    self.validate().responseJSON { (response) -> Void in
      switch response.result {
      case .success(let value):
        let json = JSON(value)
        if let model: T = json.map() {
          success(model)
        } else if (response.response?.statusCode ?? -1) == 204 {
          let error = self.makeError(
            message: "Response could not be mapped",
            code: GMEResponseErrorCode.unknown.rawValue
          )
          
          failure(error)
        } else {
          let error = self.makeError(
            message: GmeResponseOperationStatusCode.successfull.rawValue,
            code: GMEResponseErrorCode.deleted.rawValue
          )
          failure(error)
        }
      case .failure(let error):
        debugPrint("DataRequest Error: \(error.localizedDescription)")
        if (response.response?.statusCode ?? -1) == 401 {
            MainWireframe.logoutWarningAlert(message: "You have logged in from another device.")
          return
        }
        failure(error)
      }
    }
  }
  
  private func makeError(message: String, code: Int) -> Error {
    let errorInfo: [String: Any]? = [NSLocalizedDescriptionKey: message]
    return NSError.init(domain: "Network", code: code, userInfo: errorInfo)
  }
}