#include "project.h"


void
sync_tables (DISK * d)
{
  MBR *m;
  uint8_t mbuf[512];
  GPT_headers h;
  int i;
  GUID guid_ext3 = GUID_TYPE_LINUX_EXT3;
  GUID guid_swap = GUID_TYPE_LINUX_SWAP;
  GUID guid_hfs = GUID_TYPE_APPLE_HFS;
  GUID guid_efi = GUID_TYPE_SYSTEM;
  int mbr_entry = 0;
  int seen_linux = 0;

  disk_read (d, mbuf, 0, 1);
  m = (MBR *) mbuf;

  h = headers_get (d);

  for (i = 0; i < h.header.n_partition_entries; ++i)
    {

      GPT_entry e = entry_read (d, &h.header, i);
      uint8_t type = 0, bootable = 0;

      if (!guid_cmp (&e.type, &guid_efi))
        {
          type = MBR_PARTITION_TYPE_EFI;
        }
      else if (!guid_cmp (&e.type, &guid_ext3))
        {
          type = MBR_PARTITION_TYPE_LINUX;
        }
      else if (!guid_cmp (&e.type, &guid_swap))
        {
          type = MBR_PARTITION_TYPE_SWAP;
        }
      else if (!guid_cmp (&e.type, &guid_hfs))
        {
          type = MBR_PARTITION_TYPE_HFS;
        }

      if ((type == MBR_PARTITION_TYPE_LINUX) && (!seen_linux))
        {
          seen_linux++;
          bootable++;
        }

      mbr_entry_from_gpt_entry (&m->entry[mbr_entry++], &h.header, &e,
                                bootable, type);

      if (mbr_entry == 4)
        break;
    }

  for (; mbr_entry < 4; ++mbr_entry)
    {
      memset (&m->entry[mbr_entry], 0, sizeof (MBR_entry));
    }



  disk_write (d, mbuf, 0, 1);


}