using JetBrains.Annotations;
using NEG.UI.Area;
using NEG.UI.WindowSlot;
using UnityEngine;

namespace NEG.UI.Window
{
    public interface IWindow : ISlotsHolder
    {
        IWindowSlot Parent { get; }

        /// <summary>
        /// Called internally by slot to open window.
        /// </summary>
        /// <param name="parentSlot">slot that opens window</param>
        void SetOpenedState(IWindowSlot parentSlot);

        void SetData(object data);
        
        /// <summary>
        /// Called internally to close window by slot.
        /// </summary>
        void SetClosedState();
    }

    public static class WindowInterfaceExtensions
    {
        //Open 
        public static void Open(this IWindow window, IWindowSlot slot = null, object data = null)
        {
            if (slot != null)
            {
                slot.AttachWindow(window);
                window.SetData(data);
                return;
            }

            UiManager.Instance.CurrentArea.OpenWindow(window, data);
        }

        public static void Open(this IWindow window, IArea area, object data = null) => area.OpenWindow(window, data);
        public static void OpenChild(this IWindow window, IWindow windowToOpen, object data = null)
        {
            if (windowToOpen == null)
            {
                Debug.LogError($"Window to open cannot be null");
                return;
            }
            window.OpenWindow(windowToOpen, data);
        }

        public static void OpenAsChild(this IWindow window, IWindow parentWindow = null, object data = null)
        {
            if (parentWindow != null)
            {
                parentWindow.OpenWindow(window);
                return;
            }

            UiManager.Instance.CurrentArea.OpenChildWindow(window, data);
        }

        public static void Close(this IWindow window) => window.Parent.DetachWindow(window);

    }
}