ZalyalovIldar

/// Usage: phoneTextField.formatPattern(pattern: "(***) ***-**-**", replacementChar: "*", staticPrefixString: "+7 ", allowText: false, allowNumbers: true)

extension UITextField {
    
    /// Структура с перечислениями не хранимых полей
    private struct FieldMaskProperties {
        
        static var pattern            = "pattern"
        static var replacementChar    = "replacementChar"

ZalyalovIldar

/// Timer that can work in background and update timer count if needed even if app resign active
class RepeatingTimer {
    
    fileprivate enum State {
        case suspended
        case resumed
    }
    
    let timeInterval: TimeInterval
    

ZalyalovIldar

/// Cascade delete object in Realm
    ///
    /// - warning: Call only in write transaction
    /// - Parameters:
    ///   - object: Object to delete
    ///   - realm:  Realm instance
    ///   - onlyProperties: removeOnly property (ex. before re-write/update model) 
    func cascadeDelete(_ object: Object, with realm: Realm, onlyProperties: Bool = false) {
        

ZalyalovIldar

protocol CurrentUserManager {
    var currentUser: User { get }
}

class CurrentUserManagerIml: CurrentUserManager {
  
   /// Current user cached in memory
   /// obtainCurrentUser - static method, obtain User model from data base/file/e.t.c.
   private static var currentUser: User = obtainCurrentUser()