NSViewControllerRepresentable Temp

//
//  NSViewControllerRepresentable.swift
//  HelloSwiftUI
//
//  Created by Kyuhyun Park on 12/23/24.
//

import SwiftUI
import AppKit

fileprivate struct Representable: NSViewControllerRepresentable {
    @Binding var text: String
    
    func makeCoordinator() -> Coordinator {
//        Coordinator(text: $text)
        Coordinator()
    }
    
    func makeNSViewController(context: Context) -> Controller {
        Controller(text: $text)
    }

    func updateNSViewController(_ controller: Controller, context: Context) {
        controller.textView.string = text
    }
    
    class Controller: NSViewController, NSTextViewDelegate {
        var textView: NSTextView!
        @Binding var text: String

        init(text: Binding<String>) {
            self._text = text
            super.init(nibName: nil, bundle: nil)
        }

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

        override func loadView() {
            let container = NSView()

            let textView = NSTextView()
            textView.translatesAutoresizingMaskIntoConstraints = false
            textView.delegate = self
            
            self.textView = textView
            container.addSubview(textView)

            NSLayoutConstraint.activate([
                textView.leadingAnchor.constraint(equalTo: container.leadingAnchor),
                textView.trailingAnchor.constraint(equalTo: container.trailingAnchor),
                textView.topAnchor.constraint(equalTo: container.topAnchor),
                textView.bottomAnchor.constraint(equalTo: container.bottomAnchor)
            ])

            self.view = container
        }
        
        func textDidChange(_ notification: Notification) {
            self.text = textView.string
        }

        // AppKit 데이터를 SwiftUI 데이터로.
        func textChanged(text: String) {

        }

    }

    @MainActor
    class Coordinator: NSObject /*, MyDelegate*/  {
//        @Binding var text: String
//        
//        init(text: Binding<String>) {
//            _text = text
//        }

//        // AppKit 데이터를 SwiftUI 데이터로.
//        func textChanged(text: String) {
//            self.text = text
//        }

    }
}

struct NSViewControllerRepresentableDemo: View {
    @State private var text:String = "Hello"
    
    var body: some View {
        VStack {
            Text("NSViewControllerRepresentable Demo")
                .font(.title)
                .padding()

            Text(text)
                .font(.title3)
                .padding()

            Representable(text: $text)
                .frame(width: 200, height: 80)
        }
        .padding()
    }
}

#Preview {
    NSViewControllerRepresentableDemo()
}