SergeyPetrachkov

/// Wait for async operation to return value and call callback with the value
/// This class is intended to workaround/simplify async/await + actors isolation
/// https://twitter.com/krzyzanowskim/status/1523233140914876416
private class AsyncWaiter<T> {
    var didReceiveValue: Bool = false
    let value: (T) -> Void
    let operation: () async throws -> T

    init(_ value: @escaping (T) -> Void, operation: @escaping () async throws -> T) {
        self.value = value

SergeyPetrachkov

import Foundation

class Debounce {
    private let queue: DispatchQueue
    private let delay: Double
    private var workItem: DispatchWorkItem?
    private var cancelBlock: (() -> Void)?

    init(queue: DispatchQueue, delay: Double) {
        self.queue = queue

SergeyPetrachkov

import Foundation

class Throttle {
    private let queue: DispatchQueue
    private let delay: Double
    private var delayedBlock: (() -> Void)?
    private var cancelBlock: (() -> Void)?
    private var timer: DispatchSourceTimer?
    private var isReady = true
    private var hasDelayedBlock: Bool { delayedBlock != nil }

SergeyPetrachkov

extension JWT {
  var email: String? {
    return claim(name: "email").string
  }
}

SergeyPetrachkov

@available(iOS 13.0, *)
  @objc
  private func handleAuthorizationAppleIDButtonPress() {
    let appleIDProvider = ASAuthorizationAppleIDProvider()
    let request = appleIDProvider.createRequest()
    request.requestedScopes = [.fullName, .email]

    let authorizationController = ASAuthorizationController(authorizationRequests: [request])
    authorizationController.delegate = self
    authorizationController.presentationContextProvider = self

SergeyPetrachkov

func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
    switch authorization.credential {
    case let appleIDCredential as ASAuthorizationAppleIDCredential:
      if let identityToken = appleIDCredential.identityToken,
        let token = String(data: identityToken, encoding: .utf8),
        let decodedToken = try? decode(jwt: token) {
        // do your thing here 
      } else {
        // something went wrong, handle it
      }

SergeyPetrachkov

extension UIWindow {
  
  /// Fix for http://stackoverflow.com/a/27153956/849645
  func set(rootViewController newRootViewController: UIViewController,
           withTransition transition: CATransition? = nil) {
    
    let previousViewController = rootViewController
    
    if let transition = transition {
      // Add the transition

SergeyPetrachkov

{
    "current_page": 1,
    "data": [
        {
            "type": "draft",
            "source": "subscribe",
            "trainings_count": 10,
            "created_at": "2019-04-23 17:10:42",
            "trainings": [
                {

SergeyPetrachkov

enum ServiceError: Error {
  case timeout
  case nilData
}

extension SwaggerClientAPI {
  private enum HeadersKeys: String {
    case authorization = "Authorization"
  }
  class func setBearer(_ token: String) {

SergeyPetrachkov

public struct InviteFeedModel: Codable {

    public var level: Int?
    public var performerId: String
    public var performerName: String?
    public var newParticipantId: String?
    public var newParticipantName: String?

    public init(level: Int?, performerId: String, performerName: String?, newParticipantId: String?, newParticipantName: String?) {
        self.level = level