/*
   Bacula(R) - The Network Backup Solution

   Copyright (C) 2000-2018 Kern Sibbald

   The original author of Bacula is Kern Sibbald, with contributions
   from many others, a complete list can be found in the file AUTHORS.

   You may use this file and others of this release according to the
   license defined in the LICENSE file, which includes the Affero General
   Public License, v3.0 ("AGPLv3") and some additional permissions and
   terms pursuant to its AGPLv3 Section 7.

   This notice must be preserved when any source code is
   conveyed and/or propagated.

   Bacula(R) is a registered trademark of Kern Sibbald.
*/
/* 
 *  Written by James Harper, October 2008
 */

#include "exchange-fd.h"

store_node_t::store_node_t(char *name, node_t *parent_node) : node_t(name, NODE_TYPE_STORE, parent_node)
{
   dbi = NULL;
   hccx = NULL;
   dbi_node = NULL;
   file_node = NULL;
}

store_node_t::~store_node_t()
{
   if (dbi_node != NULL)
      delete dbi_node;

   if (file_node != NULL)
      delete file_node;
}

bRC
store_node_t::startBackupFile(exchange_fd_context_t *context, struct save_pkt *sp)
{
   char *tmp;

   _DebugMessage(100, "startBackupNode_STORE state = %d\n", state);

   switch(state)
   {
   case 0:
      stream_ptr = dbi->wszDatabaseStreams;
      state = 1;
      // fall through
   case 1:
      dbi_node = new dbi_node_t("DatabaseBackupInfo", this);
      dbi_node->dbi = dbi;
      context->current_node = dbi_node;
      break;
   case 2:
      tmp = new char[wcslen(stream_ptr) + 1];
      wcstombs(tmp, stream_ptr, wcslen(stream_ptr) + 1);
      file_node = new file_node_t(tmp, this);
      file_node->hccx = hccx;
      file_node->filename = stream_ptr;
      context->current_node = file_node;
      break;
   case 3:
      if (context->job_level == 'F')
      {
         time_t now = time(NULL);
         sp->fname = full_path;
         sp->link = full_path;
         sp->statp.st_mode = 0700 | S_IFDIR;
         sp->statp.st_ctime = now;
         sp->statp.st_mtime = now;
         sp->statp.st_atime = now;
         sp->statp.st_size = 0;
         sp->type = FT_DIREND;
      }
      else
      {
         bfuncs->setBaculaValue(context->bpContext, bVarFileSeen, (void *)full_path);
         return bRC_Seen;
      }
      break;
   }

   return bRC_OK;
}

bRC
store_node_t::endBackupFile(exchange_fd_context_t *context)
{
   _DebugMessage(100, "endBackupNode_STORE state = %d\n", state);
   bRC retval = bRC_OK;

   switch(state)
   {
   case 0:
      // should never happen
      break;
   case 1:
      state = 2;
      retval = bRC_More;
      break;
   case 2:
      delete file_node;
      stream_ptr += wcslen(stream_ptr) + 1;
      if (*stream_ptr == 0)
         state = 3;
      retval = bRC_More;
      break;
   case 3:
      //delete dbi_node;
      context->current_node = parent;
      break;
   }
   return retval;
}

bRC
store_node_t::createFile(exchange_fd_context_t *context, struct restore_pkt *rp)
{
   _DebugMessage(100, "createFile_STORE state = %d\n", state);

   if (strcmp(context->path_bits[level - 1], parent->name) != 0)
   {
      _DebugMessage(100, "Different storage group - switching back to parent\n", state);
      context->current_node = parent;
      return bRC_OK;
   }
   for (;;)
   {
      switch (state)
      {
      case 0:
         if (strcmp("DatabaseBackupInfo", context->path_bits[level + 1]) != 0)
         {
            _JobMessage(M_FATAL, "DatabaseBackupInfo file must exist and must be first in directory\n");
            state = 999;
            break;
         }
         dbi_node = new dbi_node_t(bstrdup(context->path_bits[level + 1]), this);
         context->current_node = dbi_node;
         return bRC_OK;
      case 1:
         if (strcmp(context->path_bits[level - 1], parent->name) != 0)
         {
            _JobMessage(M_ERROR, "Unexpected Storage Group Change\n");
            state = 999;
            break;
         }

         if (*stream_ptr != 0)
         {
            // verify that stream_ptr == context->path_bits[level + 1];
            _DebugMessage(150, "stream_ptr = %S\n", stream_ptr);
            _DebugMessage(150, "out_stream_ptr = %S\n", out_stream_ptr);
            file_node = new file_node_t(bstrdup(context->path_bits[level + 1]), this);
            file_node->hccx = hccx;
            file_node->filename = out_stream_ptr;
            context->current_node = file_node;
            return bRC_OK;
         }
         else
         {
            _JobMessage(M_ERROR, "Extra file found '%s'\n", full_path);
            state = 999;
            break;
         }
      case 2:
         if (rp->type != FT_DIREND)
         {
            _JobMessage(M_ERROR, "Unexpected file '%s'\n", full_path);
            state = 999;
            break;
         }
         rp->create_status = CF_CREATED;
         return bRC_OK;
      case 999:
         if (strcmp(context->path_bits[level], name) != 0)
         {
            _DebugMessage(100, "End of Store when in error state - switching back to parent\n", state);
            context->current_node = parent;
            return bRC_OK;
         }
         rp->create_status = CF_CREATED;
         return bRC_OK;
      }
   }
}

bRC
store_node_t::endRestoreFile(exchange_fd_context_t *context)
{
   HRESULT result;

   _DebugMessage(100, "endRestoreFile_STORE state = %d\n", state);
   for (;;)
   {
      switch (state)
      {
      case 0:
         state = 1;
         _DebugMessage(100, "Calling HrESERestoreAddDatabase\n");
         result = HrESERestoreAddDatabase(hccx, dbi_node->restore_display_name, dbi_node->restore_guid, dbi_node->restore_input_streams, &dbi_node->restore_output_streams);
         if (result != 0)
         {
            _JobMessage(M_FATAL, "HrESERestoreAddDatabase failed with error 0x%08x - %s\n", result, ESEErrorMessage(result));
            state = 999;
            break;
         }
         stream_ptr = dbi_node->restore_input_streams;
         out_stream_ptr = dbi_node->restore_output_streams;
         return bRC_OK;
      case 1:
         if (*stream_ptr != 0)
         {
            delete file_node;
            file_node = NULL;
            stream_ptr += wcslen(stream_ptr) + 1;
            out_stream_ptr += wcslen(out_stream_ptr) + 1;
            if (*stream_ptr == 0)
               state = 2;
            return bRC_OK;
         }
         else
         {
            state = 999;
            break;
         }
      case 2:
         context->current_node = parent;
         return bRC_OK;
      case 999:
         return bRC_OK;
      }
   }
}
