SergeyPetrachkov

public protocol Copyable {
  init(other: Self)
}

public extension Copyable {
  public func copy() -> Self {
    return Self.init(other: self)
  }
}

SergeyPetrachkov

extension UIImage {
  static func roundedTextAvatar(text: String?,
                        color: UIColor,
                        circular: Bool,
                        textAttributes: [NSAttributedStringKey: Any]?,
                        size: CGSize) -> UIImage? {
    
    let scale = Float(UIScreen.main.scale)
    UIGraphicsBeginImageContextWithOptions(size, false, CGFloat(scale))
    let context = UIGraphicsGetCurrentContext()

SergeyPetrachkov

extension String {
  public var initials: String {
    var finalString = String()
    var words = components(separatedBy: .whitespacesAndNewlines)
    
    if let firstCharacter = words.first?.first {
      finalString.append(String(firstCharacter))
      words.removeFirst()
    }
    

SergeyPetrachkov

protocol ChatsService {
  func getChats(request: GetConversationsRequest) throws -> [Message]
  func getChatMessages(request: GetConversationMessagesRequest) throws -> [Message]
  func submitMessage(request: SubmitMessageRequest) throws -> Message
  func getUnreadMessagesNumber() throws -> Int
}

SergeyPetrachkov

class RemoteChatsProvider: ChatsProvider {
  func getChats(request: GetConversationsRequest) throws -> [Message] {
    var items: [MessageDto] = []
    var outputError: Error? = nil
    let dispatchGroup = DispatchGroup()
    dispatchGroup.enter()
    
    CompanyMessagesAPI.companyMessagesGetConversations(request: request, completion: { (successfulResponse, error) in
      do {
        items = try SwaggerApiResponseHandler.unwrapResponse((successfulResponse, error))

SergeyPetrachkov

extension SwaggerClientAPI {
  private enum HeadersKeys: String {
    case authorization = "Authorization"
  }
  class func setBearer(_ token: String) {
    SwaggerClientAPI.customHeaders = [HeadersKeys.authorization.rawValue: "Bearer \(token)"]
  }
  class func clearBearer() {
    SwaggerClientAPI.customHeaders.removeValue(forKey: HeadersKeys.authorization.rawValue)
  }

SergeyPetrachkov

class ConversationsListInteractor: ConversationsListInteractorInput {
  let chatsProvider: ChatsService = Assembler.container.resolve(ChatsProvider.self)!
  weak var output: ConversationsListInteractorOutput?
  
  // MARK: - Input
  func requestItems(request: ConversationsList.DataContext.Request) {
    DispatchQueue(label: "ConversationsListInteractor").async {
      do {
        let items = try self.chatsProvider.getChats(request: GetConversationsRequest(skip: request.skip, take: request.take))
        let models = items.map({ ConversationsListModel(currentModel: $0) })

SergeyPetrachkov

if let data = self.currentModel.imageData {
      view.avatarImage.image = UIImage(data: data)
    } else {
      view.avatarImage.setImage(string: currentModel.username, color: UIColor.gray, circular: true, textAttributes: nil)
    }

SergeyPetrachkov

let gradientView = UIView(frame: CGRect(x: 0, y: self.textLabel.frame.maxY - 100, width: 375, height: 100))
self.view.addSubview(gradientView)
let gradientLayer: CAGradientLayer = CAGradientLayer()
gradientLayer.frame = gradientView.bounds
// colors of your overlay. [0] - start color, [1] - end color
gradientLayer.colors = [UIColor(white: 1, alpha: 0.95).cgColor, UIColor(white: 1, alpha: 0.6).cgColor]
gradientLayer.startPoint = CGPoint(x: 0, y: 0)
gradientLayer.endPoint = CGPoint(x: 0, y: 1)
gradientView.layer.addSublayer(gradientLayer)
// rotate view 180 degrees

SergeyPetrachkov

gradientLayer.startPoint = CGPoint(x: 0, y: 0)
gradientLayer.endPoint = CGPoint(x: 0, y: 1)