using System.Collections.Generic;
    using Cysharp.Threading.Tasks;

    public partial class UIManager
    {
        private Stack<UIWindow> _uiWindowStack = new Stack<UIWindow>(8);

        public void PushWindow(UIWindow window)
        {
            if (window)
            {
                _uiWindowStack.Push(window);
            }
        }

        public UIWindow PopWindow()
        {
            if (_uiWindowStack.Count > 0)
            {
                return _uiWindowStack.Pop();
            }
            return null;
        }

        public UIWindow PopWindow(string checkWindowName)
        {
            if (_uiWindowStack.Count > 0)
            {
                var window = _uiWindowStack.Peek();
                if (string.IsNullOrEmpty(checkWindowName) || checkWindowName.Equals(window.WindowName))
                {
                    return _uiWindowStack.Pop();
                }
            }
            return null;
        }

        public void ClearHideStack()
        {
            _uiWindowStack.Clear();
        }

        public static async UniTask<UIWindow> AnimSwitchWindow(UIWindow hideWindow,  UIWindowCloseType closeType, string showWindowName,  object data)
        {
            if (hideWindow != null)
            {
                await hideWindow.AnimHide();
            }
            
            var showWindow = await UIManager.Instance.OpenWindow(showWindowName, data);
            
            await showWindow.AnimShow();

            hideWindow.CloseWindow(closeType);
            
            return showWindow;
        }
        
        public static async UniTask<UIWindow> AnimSwitchWindow(UIWindow hideWindow,  UIWindowCloseType closeType, UIWindow showWindow,  object data)
        {
            if (hideWindow != null)
            {
                await hideWindow.AnimHide();
            }

            if (showWindow != null)
            {
                showWindow.OpenWindow(data);
                await showWindow.AnimShow();
            }

            hideWindow.CloseWindow(closeType);
            
            return showWindow;
        }
    }