import Foundation
import SwiftUI
import UIKit

protocol CameraUIViewDelegate: AnyObject {
  func received(previewText: String)
  func received(text: String)
}

@available(iOS 15.0, *)
class CameraUIView: UIView, UIKeyInput {
  weak var delegate: CameraUIViewDelegate?

  var hasText = false

  init() {
    super.init(frame: .zero)
  }

  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }

  // MARK: - UIKeyInput
  func insertText(_ text: String) {
    print("Setting input to: \(text)")
    delegate?.received(text: text)
  }

  func deleteBackward() { }

  // MARK: - UITextInput {
  func setMarkedText(_ markedText: String?, selectedRange: NSRange) {
    print("Changing marked text to \"\(markedText ?? "")\"")
    delegate?.received(previewText: markedText ?? "")
  }

  func unmarkText() {
    delegate?.received(previewText: "")
    print("Should unset previewInput")
  }
}