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

namespace PFCRip
{
  public class PFCObject
  {
    protected virtual byte[] SyncHeader { get; set; }
    public byte[] Data;

    public PFCObject(byte[] data, uint startIndex)
    {
      var header = new byte[SyncHeader.Length];
      for (int i = 0; i < header.Length; i++)
        header[i] = data[startIndex + i];

      //First verify the sync header is correct
      for (int i = 0; i < SyncHeader.Length; i++)
        if (data[startIndex + i] != SyncHeader[i])
          throw new InvalidOperationException(String.Format("Sync header not valid: {0} required, {1} specified",
            BitConverter.ToString(SyncHeader), BitConverter.ToString(header)));

      //Get the size of the block
      uint size = LittleEndianConverter.ToUInt32(data, startIndex + 4);

      //Save this data
      Data = new byte[size];
      for (int i = 0; i < Data.Length; i++)
        Data[i] = data[startIndex + 8 + i];
    }
  }
}