using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using VDash.Utilities;

namespace VDash.Overlay.Actions
{
    [OverlayActionInfo("Bring Window to Front")]
    public class BringWindowToFrontAction : IWindowAction
    {
        /// <summary>
        /// Unminimize the window if it's minimized.
        /// </summary>
        public bool UnminimizeIfMinimized { get; set; }
        public bool Enabled { get; set; } = true;

        public Type Editor { get; } = null;

        public BringWindowToFrontAction(bool unminimizeIfMinimized)
        {
            UnminimizeIfMinimized = unminimizeIfMinimized;
        }

        public BringWindowToFrontAction()
        {
            UnminimizeIfMinimized = true;
        }

        public void PreformAction(IOverlay intOverlay)
        {
            if (!Enabled) { return; }
            if (!intOverlay.GetType().IsAssignableFrom(typeof(WindowOverlay)))
            {
                Console.WriteLine("This action cannot be performed on a non-WindowOverlay overlay.");
                return;
            }

            WindowOverlay overlay = (WindowOverlay)intOverlay;
            IntPtr handle = overlay.Config.Selector.GetWindowHandle();
            PreformAction(handle);
        }

        public void PreformAction(IntPtr handle)
        {
            //Make sure window isn't minimized
            User32.WINDOWPLACEMENT placement = new User32.WINDOWPLACEMENT();
            placement.Length = Marshal.SizeOf(placement);
            User32.GetWindowPlacement(handle, ref placement);

            if (placement.ShowCmd == User32.ShowWindowCommands.ShowMinimized)
            {
                User32.ShowWindow(handle, User32.ShowWindowCommands.Normal);
            }

            User32.SetForegroundWindow(handle);
        }
        public override string ToString()
        {
            var attribute = (OverlayActionInfo)this.GetType().GetCustomAttributes(typeof(OverlayActionInfo), false).Single();
            return attribute.Description;
        }
    }
}