using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.Runtime.InteropServices;

namespace XCS2NS
{
    public class SafeMemoryManipulator : IDisposable
    {
        private IntPtr buffer;
        private int bufferSize;
        private bool disposed = false;

        public SafeMemoryManipulator(int size)
        {
            bufferSize = size;
            buffer = Marshal.AllocHGlobal(bufferSize);
            Console.WriteLine("Buffer allocated with size " + bufferSize);
        }

        public void WriteToBuffer(int value, int index)
        {
            if (index < 0 || index * sizeof(int) >= bufferSize)
            {
                throw new ArgumentOutOfRangeException(nameof(index), "Index is out of range.");
            }

            unsafe
            {
                int* ptr = (int*)buffer.ToPointer();
                ptr[index] = value;
                Console.WriteLine($"Value {value} written at buffer index {index}.");
            }
        }

        protected virtual void Dispose(bool disposing)
        {
            if (!disposed)
            {
                if (disposing)
                {
                    // Optionally dispose managed state (managed objects).
                }

                if (buffer != IntPtr.Zero)
                {
                    Marshal.FreeHGlobal(buffer);
                    Console.WriteLine("Buffer freed.");
                    buffer = IntPtr.Zero;
                }

                disposed = true;
            }
        }

        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        ~SafeMemoryManipulator()
        {
            Dispose(false);
        }
    }

}