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using LibHac.Common.Keys;
using LibHac.Fs.Fsa;
using LibHac.Ncm;
using LibHac.Tools.FsSystem.NcaUtils;
using LibHac.Tools.Ncm;
using Ryujinx.HLE.Loaders.Processes.Extensions;
using System;
namespace Ryujinx.HLE.FileSystem
{
/// <summary>
/// Thin wrapper around <see cref="Cnmt"/>
/// </summary>
public class ContentMetaData
{
private readonly IFileSystem _pfs;
private readonly Cnmt _cnmt;
public ulong Id => _cnmt.TitleId;
public TitleVersion Version => _cnmt.TitleVersion;
public ContentMetaType Type => _cnmt.Type;
public ulong ApplicationId => _cnmt.ApplicationTitleId;
public ulong PatchId => _cnmt.PatchTitleId;
public TitleVersion RequiredSystemVersion => _cnmt.MinimumSystemVersion;
public TitleVersion RequiredApplicationVersion => _cnmt.MinimumApplicationVersion;
public byte[] Digest => _cnmt.Hash;
public ulong ProgramBaseId => Id & ~0x1FFFUL;
public bool IsSystemTitle => _cnmt.Type < ContentMetaType.Application;
public ContentMetaData(IFileSystem pfs, Cnmt cnmt)
{
_pfs = pfs;
_cnmt = cnmt;
}
public Nca GetNcaByType(KeySet keySet, ContentType type, int programIndex = 0)
{
// TODO: Replace this with a check for IdOffset as soon as LibHac supports it:
// && entry.IdOffset == programIndex
foreach (var entry in _cnmt.ContentEntries)
{
if (entry.Type != type)
{
continue;
}
string ncaId = BitConverter.ToString(entry.NcaId).Replace("-", null).ToLower();
Nca nca = _pfs.GetNca(keySet, $"/{ncaId}.nca");
if (nca.GetProgramIndex() == programIndex)
{
return nca;
}
}
return null;
}
}
}
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