using System;
using System.Runtime.InteropServices;

namespace PkmnLibSharp.Utilities
{
    internal static class MarshalHelper
    {
        internal static IntPtr ToPtr(this string? s)
        {
            if (s == null) return IntPtr.Zero;
            return Marshal.StringToHGlobalAnsi(s);
        }

        internal static string? PtrString(this IntPtr i)
        {
            if (i == IntPtr.Zero) return null;
            return Marshal.PtrToStringAnsi(i);
        }

        internal static IntPtr ArrayPtr(this Array a)
        {
            return Marshal.UnsafeAddrOfPinnedArrayElement(a, 0);
        }

        internal const byte True = 1;
        internal const byte False = 0;

        internal static byte ToNative(this bool b)
        {
            return b ? True : False;
        }
    }
}