<commit_before>//
//  NetworkStack.swift
//
//  Copyright © 2017 Niji. 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
//
//  http://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 RxSwift
import Alamofire

public final class NetworkStack {
  
  // MARK: - Constants
  
  static let authorizationHeaderKey = "Authorization"
  
  // MARK: - Type aliases
  
  public typealias AskCredentialHandler = (() -> Observable<Void>)
  public typealias RenewTokenHandler = (() -> Observable<Void>)
  
  // MARK: - Properties
  
  fileprivate let disposeBag = DisposeBag()
  fileprivate let baseURL: String
  fileprivate let keychainService: KeychainService
  
  fileprivate var requestManager: Alamofire.SessionManager
  
  fileprivate var uploadManager: Alamofire.SessionManager?
  
  public var uploadManagerSessionDelegate: Alamofire.SessionDelegate? {
    return uploadManager?.delegate
  }
  
  public var backgroundCompletionHandler: (() -> Void)? {
    get {
      return uploadManager?.backgroundCompletionHandler
    }
    set {
      uploadManager?.backgroundCompletionHandler = newValue
    }
  }

  
  public var askCredentialHandler: AskCredentialHandler?
  public var renewTokenHandler: RenewTokenHandler?
  
  public weak var delegate: NetworkStackDelegate?
  
  // MARK: - Setup
  
  public init(baseURL: String,
       keychainService: KeychainService,
       requestManager: Alamofire.SessionManager = Alamofire.SessionManager(),
       uploadManager: SessionManager? = nil,
       askCredentialHandler: AskCredentialHandler? = nil) {<commit_msg>Add public access to baseURL<commit_after>//
//  NetworkStack.swift
//
//  Copyright © 2017 Niji. 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
//
//  http://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 RxSwift
import Alamofire

public final class NetworkStack {
  
  // MARK: - Constants
  
  static let authorizationHeaderKey = "Authorization"
  
  // MARK: - Type aliases
  
  public typealias AskCredentialHandler = (() -> Observable<Void>)
  public typealias RenewTokenHandler = (() -> Observable<Void>)
  
  // MARK: - Properties
  
  fileprivate let disposeBag = DisposeBag()
  fileprivate let keychainService: KeychainService
  public let baseURL: String  
  
  fileprivate var requestManager: Alamofire.SessionManager
  
  fileprivate var uploadManager: Alamofire.SessionManager?
  
  public var uploadManagerSessionDelegate: Alamofire.SessionDelegate? {
    return uploadManager?.delegate
  }
  
  public var backgroundCompletionHandler: (() -> Void)? {
    get {
      return uploadManager?.backgroundCompletionHandler
    }
    set {
      uploadManager?.backgroundCompletionHandler = newValue
    }
  }

  
  public var askCredentialHandler: AskCredentialHandler?
  public var renewTokenHandler: RenewTokenHandler?
  
  public weak var delegate: NetworkStackDelegate?
  
  // MARK: - Setup
  
  public init(baseURL: String,
       keychainService: KeychainService,
       requestManager: Alamofire.SessionManager = Alamofire.SessionManager(),
       uploadManager: SessionManager? = nil,
       askCredentialHandler: AskCredentialHandler? = nil) {
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