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using Ryujinx.Common.Configuration;
using Ryujinx.Common.Memory;
using Ryujinx.Common.Utilities;
using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Services.Mii;
using Ryujinx.HLE.HOS.Services.Mii.Types;
using Ryujinx.HLE.HOS.Services.Nfc.Nfp.NfpManager;
using System;
using System.Collections.Generic;
using System.IO;
namespace Ryujinx.HLE.HOS.Services.Nfc.Nfp
{
static class VirtualAmiibo
{
private static uint _openedApplicationAreaId;
private static readonly AmiiboJsonSerializerContext _serializerContext = AmiiboJsonSerializerContext.Default;
public static byte[] GenerateUuid(string amiiboId, bool useRandomUuid)
{
if (useRandomUuid)
{
return GenerateRandomUuid();
}
VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);
if (virtualAmiiboFile.TagUuid.Length == 0)
{
virtualAmiiboFile.TagUuid = GenerateRandomUuid();
SaveAmiiboFile(virtualAmiiboFile);
}
return virtualAmiiboFile.TagUuid;
}
private static byte[] GenerateRandomUuid()
{
byte[] uuid = new byte[9];
Random.Shared.NextBytes(uuid);
uuid[3] = (byte)(0x88 ^ uuid[0] ^ uuid[1] ^ uuid[2]);
uuid[8] = (byte)(uuid[3] ^ uuid[4] ^ uuid[5] ^ uuid[6]);
return uuid;
}
public static CommonInfo GetCommonInfo(string amiiboId)
{
VirtualAmiiboFile amiiboFile = LoadAmiiboFile(amiiboId);
return new CommonInfo()
{
LastWriteYear = (ushort)amiiboFile.LastWriteDate.Year,
LastWriteMonth = (byte)amiiboFile.LastWriteDate.Month,
LastWriteDay = (byte)amiiboFile.LastWriteDate.Day,
WriteCounter = amiiboFile.WriteCounter,
Version = 1,
ApplicationAreaSize = AmiiboConstants.ApplicationAreaSize,
Reserved = new Array52<byte>(),
};
}
public static RegisterInfo GetRegisterInfo(ITickSource tickSource, string amiiboId, string nickname)
{
VirtualAmiiboFile amiiboFile = LoadAmiiboFile(amiiboId);
UtilityImpl utilityImpl = new(tickSource);
CharInfo charInfo = new();
charInfo.SetFromStoreData(StoreData.BuildDefault(utilityImpl, 0));
charInfo.Nickname = Nickname.FromString(nickname);
RegisterInfo registerInfo = new()
{
MiiCharInfo = charInfo,
FirstWriteYear = (ushort)amiiboFile.FirstWriteDate.Year,
FirstWriteMonth = (byte)amiiboFile.FirstWriteDate.Month,
FirstWriteDay = (byte)amiiboFile.FirstWriteDate.Day,
FontRegion = 0,
Reserved1 = new Array64<byte>(),
Reserved2 = new Array58<byte>(),
};
"Ryujinx"u8.CopyTo(registerInfo.Nickname.AsSpan());
return registerInfo;
}
public static bool OpenApplicationArea(string amiiboId, uint applicationAreaId)
{
VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);
if (virtualAmiiboFile.ApplicationAreas.Exists(item => item.ApplicationAreaId == applicationAreaId))
{
_openedApplicationAreaId = applicationAreaId;
return true;
}
return false;
}
public static byte[] GetApplicationArea(string amiiboId)
{
VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);
foreach (VirtualAmiiboApplicationArea applicationArea in virtualAmiiboFile.ApplicationAreas)
{
if (applicationArea.ApplicationAreaId == _openedApplicationAreaId)
{
return applicationArea.ApplicationArea;
}
}
return Array.Empty<byte>();
}
public static bool CreateApplicationArea(string amiiboId, uint applicationAreaId, byte[] applicationAreaData)
{
VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);
if (virtualAmiiboFile.ApplicationAreas.Exists(item => item.ApplicationAreaId == applicationAreaId))
{
return false;
}
virtualAmiiboFile.ApplicationAreas.Add(new VirtualAmiiboApplicationArea()
{
ApplicationAreaId = applicationAreaId,
ApplicationArea = applicationAreaData,
});
SaveAmiiboFile(virtualAmiiboFile);
return true;
}
public static void SetApplicationArea(string amiiboId, byte[] applicationAreaData)
{
VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);
if (virtualAmiiboFile.ApplicationAreas.Exists(item => item.ApplicationAreaId == _openedApplicationAreaId))
{
for (int i = 0; i < virtualAmiiboFile.ApplicationAreas.Count; i++)
{
if (virtualAmiiboFile.ApplicationAreas[i].ApplicationAreaId == _openedApplicationAreaId)
{
virtualAmiiboFile.ApplicationAreas[i] = new VirtualAmiiboApplicationArea()
{
ApplicationAreaId = _openedApplicationAreaId,
ApplicationArea = applicationAreaData,
};
break;
}
}
SaveAmiiboFile(virtualAmiiboFile);
}
}
private static VirtualAmiiboFile LoadAmiiboFile(string amiiboId)
{
Directory.CreateDirectory(Path.Join(AppDataManager.BaseDirPath, "system", "amiibo"));
string filePath = Path.Join(AppDataManager.BaseDirPath, "system", "amiibo", $"{amiiboId}.json");
VirtualAmiiboFile virtualAmiiboFile;
if (File.Exists(filePath))
{
virtualAmiiboFile = JsonHelper.DeserializeFromFile(filePath, _serializerContext.VirtualAmiiboFile);
}
else
{
virtualAmiiboFile = new VirtualAmiiboFile()
{
FileVersion = 0,
TagUuid = Array.Empty<byte>(),
AmiiboId = amiiboId,
FirstWriteDate = DateTime.Now,
LastWriteDate = DateTime.Now,
WriteCounter = 0,
ApplicationAreas = new List<VirtualAmiiboApplicationArea>(),
};
SaveAmiiboFile(virtualAmiiboFile);
}
return virtualAmiiboFile;
}
private static void SaveAmiiboFile(VirtualAmiiboFile virtualAmiiboFile)
{
string filePath = Path.Join(AppDataManager.BaseDirPath, "system", "amiibo", $"{virtualAmiiboFile.AmiiboId}.json");
JsonHelper.SerializeToFile(filePath, virtualAmiiboFile, _serializerContext.VirtualAmiiboFile);
}
}
}
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