//
//  RestApiManager.swift
//  GMERemittance
//
//  Created by Sujal on 12/5/17.
//  Copyright © 2017 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation
import Alamofire
import SwiftyJSON
import ObjectMapper
import Localize_Swift

enum Server: String {
  case live
  case testLive
}

extension Server: CaseIterable {
  static var allCases: [Self] {
    return [Self](AnySequence { () -> AnyIterator<Self> in
      var raw = 0
      var first: Self?
      return AnyIterator {
        let current = withUnsafeBytes(of: &raw) { $0.load(as: Self.self) }
        if raw == 0 {
          first = current
        } else if current == first {
          return nil
        }
        raw += 1
        return current
      }
    })
  }
  
}

class RestApiMananger {
  
  let manager: SessionManager
  
  static let sharedInstance = RestApiMananger()
  
  init() {
    self.manager = Alamofire.SessionManager.default
    manager.session.configuration.timeoutIntervalForRequest = 150
  }
  
  func getUUID() -> String {
    
    let uuid = GMEDB.shared.app.string(.uuid)
    if uuid != nil {
      return uuid!
    } else {
      let uuid = UUID().uuidString
      GMEDB.shared.app.set(uuid, .uuid)
      return uuid
    }
  }
  
  func getContentHeaderBeforeLogin() -> [String: String] {
    let currentLanguage = Localize.currentLanguage()
    let lang = Utility.getLanguageHeader(for: currentLanguage)
    
      //live value
      return ["Authorization": "Basic " + ("5220221D2E737FD60C28243:fUjXn2r5" +
            ":" + getUUID()).toBase64(),
            "GME-TOKEN" : "@NcRfTjWnZr4u7x!A%D*G-KaPdSgVkXp",
            "Content-Type": "application/json",
            "lang" : lang
    ]
      
    //uat value
//      return ["Authorization": "Basic " + ("162021E171B825A55C52024823:cQeThWmZ:11i:" +
//                                           getUUID()).toBase64(),
//              "GME-TOKEN" : "39587YT398@FBQOW8RY3#948R7GB@CNEQW987GF87$TD18$1981..919@@##joghndvberteiru",
//              "Content-Type": "application/json",
//              "lang" : lang
//      ]
  }
  
  func getContentHeaderAfterLogin() -> [String: String] {
    let accessCode = GMEDB.shared.user.string(.accessCode) ?? ""
    
    let currentLanguage = Localize.currentLanguage()
    let lang = Utility.getLanguageHeader(for: currentLanguage)
      
      //live value
      return [
        "Authorization": "Bearer " + accessCode,
        "GME-TOKEN" : "@NcRfTjWnZr4u7x!A%D*G-KaPdSgVkXp",
        "Content-Type": "application/json",
        "clientId": Utility.getMyKftcClientId(),
        "lang" : lang
      ]
      
      //uat value
//    return [
//      "Authorization": "Bearer " + accessCode,
//      "GME-TOKEN" : "39587YT398@FBQOW8RY3#948R7GB@CNEQW987GF87$TD18$1981..919@@##joghndvberteiru",
//      "Content-Type": "application/json",
//      "clientId": Utility.getMyKftcClientId(),
//      "lang" : lang
//    ]
  }
  
  func request<T: Mappable>(
    method: HTTPMethod,
    url: String,
    params: [String: Any]?,
    encoding: ParameterEncoding = JSONEncoding.default,
    needsAuthorization: Bool = true,
    success: @escaping (T) -> Void,
    failure: @escaping (Error) -> Void
  ) {
    if NetworkReachabilityManager()?.isReachable ?? false {
      let header = needsAuthorization ? getContentHeaderAfterLogin() : getContentHeaderBeforeLogin()
      manager.request(
        url,
        method: method,
        parameters: params,
        encoding: encoding,
        headers: header
        ).handle(success: success, failure: failure)
    } else {
      let error = NSError(
        domain: "NETWORK_REACHABILITY_DOMAIN",
        code: -99,
        userInfo: [NSLocalizedDescriptionKey : "No Internet connection found. Check your connection."]
      )
      failure(error)
    }
  }
  
  func kftcRequest<T: Mappable>(
    method: HTTPMethod,
    header: [String: String],
    url: String,
    params: [String: Any]?,
    encoding: ParameterEncoding = JSONEncoding.default,
    needsAuthorization: Bool = true,
    success: @escaping (T) -> Void,
    failure: @escaping (Error) -> Void
  ) {
    if NetworkReachabilityManager()?.isReachable ?? false {
      manager.request(
        url,
        method: method,
        parameters: params,
        encoding: encoding,
        headers: header
        ).handle(success: success, failure: failure)
    } else {
      let error = NSError(
        domain: "NETWORK_REACHABILITY_DOMAIN",
        code: 0,
        userInfo: [NSLocalizedDescriptionKey : "No Internet connection found. Check your connection."]
      )
      
      failure(error)
    }
  }
  
  func requestMultipart<T: Mappable>(
    method: HTTPMethod,
    _ URLString: URLConvertible,
    parameters: [String: String]? = nil,
    images: [String: Data],
    encoding: Alamofire.ParameterEncoding = URLEncoding.default,
    needsAuthorization: Bool = true,
    success: @escaping (T) -> Void,
    failure: @escaping (Error) -> Void
  ) {
    if NetworkReachabilityManager()?.isReachable == true {
      let headers = needsAuthorization ? getContentHeaderAfterLogin() : getContentHeaderBeforeLogin()
      
      self.manager.upload(
        multipartFormData: { multipartFormData in
          if !images.isEmpty {
            images.forEach({ (data) in
              multipartFormData.append(
                data.value,
                withName: data.key,
                fileName: data.key + ".jpeg", mimeType: "image/jpeg"
              )
            })
            
          }
          parameters?.forEach({ (params) in
            multipartFormData.append(
              params.value.data(
                using: String.Encoding.utf8, allowLossyConversion: false
                )!,
              withName: params.key
            )
          })

      },
        to: URLString,
        method: method,
        headers: headers,
        encodingCompletion: { encodingResult in
          switch encodingResult {
          case .success(let upload, _, _):
            upload.handle(success: success, failure: failure)
          case .failure:
            let error = NSError(
              domain: "NETWORK_REACHABILITY_DOMAIN",
              code: 0,
              userInfo: [NSLocalizedDescriptionKey : "No Internet connection found. Check your connection."]
            )
            
            failure(error)
            
          }
        }
      )
      
    } else {
      let error = NSError(
        domain: "NETWORK_REACHABILITY_DOMAIN",
        code: 0,
        userInfo: [NSLocalizedDescriptionKey : "No Internet connection found. Check your connection."]
      )
      
      failure(error)
    }
  }
}