using Vanara.PInvoke;
using static Vanara.PInvoke.User32;

namespace SinMaiLauncher.Interops
{
    public class WindowInterops
    {
        public static void RemoveBorderVisible(HWND hWnd)
        {
            var oldVal = (WindowLongFlags)GetWindowLong(hWnd, WindowLongFlags.GWL_STYLE);
            if (oldVal != WindowLongFlags.GWL_STYLE)
                SetWindowLong(hWnd, WindowLongFlags.GWL_STYLE, (nint)WindowStyles.WS_VISIBLE);
        }

        public static void SetParent(HWND hWnd, IntPtr hWndContainer)
        {
            User32.SetParent(hWnd, hWndContainer);
        }

        public static void FillWindow(HWND hWnd, Control container)
        {
            var rect = container.ClientRectangle;

            // 调整控制台窗口大小，使其填满容器
            MoveWindow(hWnd, rect.Left, rect.Top, rect.Width, rect.Height, true);
        }

        public enum MoveWindowResult
        {
            Success,
            NoChange,
            FailGet,
            FailSet,
        }

        public static MoveWindowResult TryMoveWindow(IntPtr hWnd, int x, int y, int w, int h)
        {
            if (!GetWindowRect(hWnd, out var rc)) return MoveWindowResult.FailGet;

            if (x != rc.Left ||
                y != rc.Top ||
                w != (rc.Right - rc.Left) ||
                h != (rc.Bottom - rc.Top))
            {
                return MoveWindow(hWnd, x, y, w, h, false)
                        ? MoveWindowResult.Success
                        : MoveWindowResult.FailSet
                    ;
            }

            return MoveWindowResult.NoChange;
        }

        public static void Maximize(HWND hWnd) => ShowWindow(hWnd, ShowWindowCommand.SW_MAXIMIZE);

        public static void Normal(HWND hWnd) => ShowWindow(hWnd, ShowWindowCommand.SW_NORMAL);
    }
}