check-ios-bus/Modules/BusX/BusUI/src/BusUI.TextField.swift

import Combine
import SwiftUI

extension BusUI {
  public final class TextField: ObservableObject {
    @Published public var v = "a:"
    var subscriptions = [AnyCancellable]()
   
    public init(
      _ textApp: String,
      _ textUI: String
    ) {
      Bus.send(
        textUI,
        $v
          .removeDuplicates()
          .compactMap(onlyUIText)
          .eraseToAnyPublisher(),
        sub: &subscriptions
      )
   
      Bus.receive(
        [textApp],
        { [weak self] (_, v: String) in self?.v = "a:\(v)" },
        sub: &subscriptions
      )
    }
  }
}