/*
    Copyright 2020. Huawei Technologies Co., Ltd. All rights reserved.

    Licensed under the Apache License, Version 2.0 (the "License")
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        https://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/

import Foundation
import AGConnectAuth

public class AGCUserViewModel {
  
  public typealias CompletionHandler = (_ result: Any?, _ error: Error?) -> Void
  private let userNilError = AGCAuthError(domain: "com.huawei.agc.auth", code: 2, userInfo: [NSDebugDescriptionErrorKey: "User Null"])
  
  func updatePhone(countryCode: String, phoneNumber: String, verificationCode: String, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updatePhone(withCountryCode: countryCode, phoneNumber: phoneNumber, verifyCode: verificationCode)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    } else {
      completion(nil, userNilError)
    }
  }
  
  func updatePhoneWithLocale(countryCode: String, phoneNumber: String, verificationCode: String, locale: String, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updatePhone(withCountryCode: countryCode, phoneNumber: phoneNumber, verifyCode: verificationCode, locale: Locale.init(identifier: locale ))
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func updatePassword(newPassword: String, verificationCode: String, provider: Int, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updatePassword(newPassword, verifyCode: verificationCode, provider: provider)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func updateEmail(email: String, verificationCode: String, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updateEmail(email, verifyCode: verificationCode)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func updateEmailWithLocale(email: String, verificationCode: String, locale: String, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updateEmail(email, verifyCode: verificationCode,locale: Locale.init(identifier: locale))
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func updateProfile(profileRequest: AGCProfileRequest, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.updateProfile(profileRequest)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func getToken(forceRefresh: Bool, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser{
      user.getToken(forceRefresh)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: {error in
          completion(nil, error)
        })
    } else {
      completion(nil, userNilError)
    }
  }
  
  func getUserExtra(completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.getExtra()
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func unLink(provider: AGCAuthProviderType, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.unlink(provider)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  func link(credential: AGCAuthCredential, completion: @escaping CompletionHandler) {
    if let user = AGCAuth.instance().currentUser {
      user.link(credential)
        .onSuccess(callback: { result in
          completion(result, nil)
        }).onFailure(callback: { error in
          completion(nil, error)
        })
    }else {
      completion(nil, userNilError)
    }
  }
  
  
}