public static MetaDataFile ParseFile(PackFile file, PackFileService pf)
{
var fileContent = file.DataSource.ReadData();
var contentLength = fileContent.Count();
MetaDataFile outputFile = new MetaDataFile()
{
FileName = pf.GetFullPath(file),
Version = BitConverter.ToInt32(fileContent, 0)
};
if (outputFile.Version != 2)
{
throw new Exception($"Unknown version - {outputFile.Version} for {outputFile.FileName}");
}
if (contentLength > 8)
{
MetaDataTagItem currentElement = null;
int numElements = BitConverter.ToInt32(fileContent, 4);
int currentIndex = 0 + 8; // First 4 bytes is the number of elements, next 2 is unknown
while (currentIndex != contentLength && (currentElement = GetElement(currentIndex, fileContent, outputFile.FileName, out currentIndex)) != null)
{
outputFile.TagItems.Add(currentElement);
}
if (numElements != outputFile.TagItems.Count)
{
throw new Exception($"Not the expected amount elements. Expected {numElements}, got {outputFile.TagItems.Count}");
}
}
return(outputFile);
}
internal static byte[] GenerateBytes(MetaDataFile output)
{
List <byte> data = new List <byte>();
data.AddRange(BitConverter.GetBytes((int)output.Version));
data.AddRange(BitConverter.GetBytes((int)output.TagItems.Count));
foreach (var item in output.TagItems)
{
data.AddRange(ByteParsers.String.Encode(item.Name, out _));
data.AddRange(item.DataItems[0].Bytes);
}
return(data.ToArray());
}
