//
//  KMSideViewController.swift
//  PDF Reader Pro
//
//  Created by lxy on 2022/11/17.
//

import Cocoa

class KMSideViewController: NSViewController {
    var isAnimating = false
    var listView : CPDFListView!
    var mainViewController : KMMainViewController!
    
//    @IBOutlet weak var mainController: KMMainWindowController!
//    @IBOutlet weak var gradientView: SKGradientView!
    @IBOutlet weak var button: NSSegmentedControl!
    @IBOutlet weak var alternateButton: NSSegmentedControl!
    @IBOutlet weak var searchField: NSSearchField!
    @IBOutlet weak var currentView: NSView!
    
    private let DURATION = 0.7
    
    deinit {
        KMPrint("KMSideViewController deinit.")
        
        NotificationCenter.default.removeObserver(self)
    }
    
    override func loadView() {
        super.loadView()
        
//        [gradientView setAutoTransparent:YES];
//        [gradientView setMinSize:NSMakeSize(GRADIENT_MIN_WIDTH, NSHeight([gradientView frame]))];
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
    }
    
    func requiresAlternateButton(forView aview: NSView?) -> Bool {
        return false
    }
    
    func replaceSideView(_ newView: NSView, animate: Bool) {
        if (newView.window != nil) {
            return
        }
        
        var _animated = animate
        if (UserDefaults.standard.bool(forKey: SKDisableAnimationsKey)) {
            _animated = false
        }
        
        let oldView = self.currentView
        self.currentView = newView
        
        let wasAlternate = self.requiresAlternateButton(forView: oldView)
        let isAlternate = self.requiresAlternateButton(forView: newView)
        let changeButton = wasAlternate != isAlternate
        let oldButton = wasAlternate ? alternateButton : button
        let newButton = isAlternate ? alternateButton : button;
        let buttonView = oldButton?.superview
        let contentView = oldView?.superview
        var firstResponder = oldView?.window?.firstResponder
        
        if let data = (firstResponder as? NSView)?.isDescendant(of: oldView!), data {
            firstResponder = newView
        } else if (wasAlternate != isAlternate && oldButton!.isEqual(to: firstResponder)) {
            firstResponder = newButton
        } else {
            firstResponder = nil
        }
        
//        [[SKImageToolTipWindow sharedToolTipWindow] orderOut:self];
        
        if (changeButton != nil) {
            newButton?.frame = oldButton?.frame ?? .zero
        }
        newView.frame = oldView?.frame ?? .zero
        
        if (_animated == false) {
            contentView?.replaceSubview(oldView!, with: newView)
            if (changeButton != nil) {
                oldButton?.superview?.replaceSubview(oldButton!, with: newButton!)
                firstResponder?.km_window()?.makeFirstResponder(firstResponder)
                contentView?.window?.recalculateKeyViewLoop()
            }
        } else {
            isAnimating = true

            contentView?.wantsLayer = true
            contentView?.displayIfNeeded()
            if (changeButton != nil) {
                buttonView?.wantsLayer = true
                buttonView?.displayIfNeeded()
            }

            NSAnimationContext.runAnimationGroup { context in

            }
            NSAnimationContext.runAnimationGroup { context in
                context.duration = DURATION
                contentView?.animator().replaceSubview(oldView!, with: newView)
                if (changeButton != nil) {
                    buttonView?.animator().replaceSubview(oldButton!, with: newButton!)
                }
            } completionHandler: {
                contentView?.wantsLayer = false
                if (changeButton) {
                    buttonView?.wantsLayer = false
                }
                firstResponder?.km_window()?.makeFirstResponder(firstResponder)
                contentView?.window?.recalculateKeyViewLoop()
                self.isAnimating = false
            }
        }
    }
    
    /*
     #define GRADIENT_MIN_WIDTH 111.0
     */
}