//
//  PreferencesController.swift
//  Persephone
//
//  Created by Daniel Barber on 2019/2/23.
//  Copyright © 2019 Dan Barber. All rights reserved.
//

import Cocoa

class PreferencesViewController: NSTabViewController {
  private lazy var tabViewSizes: [String : NSSize] = [:]

  override func viewDidLoad() {
    if let viewController = self.tabViewItems.first?.viewController, let title = viewController.title {
      tabViewSizes[title] = viewController.view.frame.size
    }
    
    super.viewDidLoad()
  }

//  override func transition(from fromViewController: NSViewController, to toViewController: NSViewController, options: NSViewController.TransitionOptions, completionHandler completion: (() -> Void)?) {
//    NSAnimationContext.runAnimationGroup({ context in
//      context.duration = 0.5
//      self.updateWindowFrameAnimated(viewController: toViewController)
//      super.transition(
//        from: fromViewController,
//        to: toViewController,
//        options: [.crossfade, .allowUserInteraction],
//        completionHandler: completion
//      )
//    }, completionHandler: nil)
//  }
//
//  func updateWindowFrameAnimated(viewController: NSViewController) {
//    guard let title = viewController.title, let window = view.window
//      else { return }
//
//    let contentSize: NSSize
//
//    if tabViewSizes.keys.contains(title) {
//      contentSize = tabViewSizes[title]!
//    } else {
//      contentSize = viewController.view.frame.size
//      tabViewSizes[title] = contentSize
//    }
//
//    let newWindowSize = window.frameRect(forContentRect: NSRect(origin: NSPoint.zero, size: contentSize)).size
//
//    var frame = window.frame
//    frame.origin.y += frame.height
//    frame.origin.y -= newWindowSize.height
//    frame.size = newWindowSize
//    window.animator().setFrame(frame, display: false)
//  }
}