//
//  VisionSupport.swift
//  Mini vMac
//
//  Created by Jesús A. Álvarez on 2024-02-09.
//  Copyright © 2024 namedfork. All rights reserved.
//

import Foundation
import UIKit
import SwiftUI

extension ViewController {
#if os(visionOS)
    @objc
    func initXr() {
        ViewController.adjustToScreenSize()
        ornaments = [
            UIHostingOrnament(sceneAnchor: .bottom, contentAlignment: .center) {
                VStack {
                    Spacer(minLength: 80.0)
                    HStack {
                        PowerMenu()
                        SettingsMenu()

                        Button(action: {
                            AppDelegate.shared.showInsertDisk(self)
                        }, label: {
                            Image(systemName: "opticaldiscdrive")
                        })

                        Button(action: {
                            self.showKeyboard(self)
                        }, label: {
                            Image(systemName: "keyboard")
                        })
                    }
                    .padding(.all)
                    .glassBackgroundEffect()
                }
            }
        ]
    }

    @objc
    static func adjustToScreenSize() {
        let screenSize = AppDelegate.emulator.screenSize
        guard let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene else {
            return
        }
        let minSize = screenSize
        let defaultSize = screenSize.applying(.init(scaleX: 2.0, y: 2.0))
        let maxSize = screenSize.applying(.init(scaleX: 3.0, y: 3.0))
        windowScene.sizeRestrictions?.minimumSize = minSize
        windowScene.sizeRestrictions?.maximumSize = maxSize
        windowScene.requestGeometryUpdate(UIWindowScene.GeometryPreferences.Vision(
            size: defaultSize,
            minimumSize: minSize,
            maximumSize: maxSize,
            resizingRestrictions: .uniform
        ))
    }

    @objc
    func keyboardLayoutMenu() -> UIMenu {
        let layouts = AppDelegate.shared.keyboardLayoutPaths ?? []
        let items: [UIMenuElement] = layouts.map({ path in
            UIDeferredMenuElement.uncached { completion in
                let layoutId = (path as NSString).lastPathComponent
                let displayName = (layoutId as NSString).deletingPathExtension
                let selected = UserDefaults.standard.string(forKey: "keyboardLayout") == layoutId
                completion([UIAction(title: displayName, state: selected ? .on : .off) { _ in
                    UserDefaults.standard.setValue(layoutId, forKey: "keyboardLayout")
                }])
            }
        })
        return UIMenu(title: "Layout", options: [], children: items)
    }
#endif
}