using System;
using BizHawk.Emulation.Common;

namespace BizHawk.Emulation.Cores.Sega.GGHawkLink
{
	public partial class GGHawkLink : ISaveRam
	{
		public byte[] CloneSaveRam()
		{
			if ((L.SaveRAM != null) || (R.SaveRAM != null))
			{
				int len1 = 0;
				int len2 = 0;
				int index = 0;

				if (L.SaveRAM != null)
				{
					len1 = L.SaveRAM.Length;
				}

				if (R.SaveRAM != null)
				{
					len2 = R.SaveRAM.Length;
				}

				byte[] temp = new byte[len1 + len2];

				if (L.SaveRAM != null)
				{
					for (int i = 0; i < L.SaveRAM.Length; i++)
					{
						temp[index] = L.SaveRAM[i];
						index++;
					}
				}

				if (R.SaveRAM != null)
				{
					for (int i = 0; i < R.SaveRAM.Length; i++)
					{
						temp[index] = R.SaveRAM[i];
						index++;
					}
				}

				return temp;
			}

			return null;
		}

		public void StoreSaveRam(byte[] data)
		{
			if (L.SaveRAM != null && R.SaveRAM == null)
			{
				Buffer.BlockCopy(data, 0, L.SaveRAM, 0, L.SaveRAM.Length);
			}
			else if (R.SaveRAM != null && L.SaveRAM == null)
			{
				Buffer.BlockCopy(data, 0, R.SaveRAM, 0, R.SaveRAM.Length);
			}
			else if (R.SaveRAM != null && L.SaveRAM != null)
			{
				Buffer.BlockCopy(data, 0, L.SaveRAM, 0, L.SaveRAM.Length);
				Buffer.BlockCopy(data, L.SaveRAM.Length, R.SaveRAM, 0, R.SaveRAM.Length);
			}

			Console.WriteLine("loading SRAM here");
		}

		public bool SaveRamModified => linkSyncSettings.Use_SRAM;
	}
}