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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            externaldataqueryparser.cc
 *
 *  Tue May  6 17:02:37 CEST 2008
 *  Copyright 2008 Bent Bisballe Nyeng, Lars Bisballe Jensen and Peter Skaarup
 *  deva@aasimon.org, elsenator@gmail.com and piparum@piparum.dk
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "externaldataqueryparser.h"

ExternalDataQueryParser::ExternalDataQueryParser(std::string document)
{
  this->document = document;
  p = 0;
  stack.push_back(&result);
}

void ExternalDataQueryParser::startTag(std::string name, std::map< std::string, std::string> attributes)
{

  if(name == "group") {
    QueryResult q;
    stack.back()->groups[attributes["name"]] = q;
    stack.push_back(&stack.back()->groups[attributes["name"]]);
  }

  if(name == "value") {
    stack.back()->values[attributes["name"]] = attributes["value"];
  }

}

void ExternalDataQueryParser::endTag(std::string name)
{
  if(name == "group") stack.pop_back();
}

// FIXME: This is *not* the optimal way to do this.
int ExternalDataQueryParser::readData(char *data, size_t size)
{
  size_t len = document.size() - p < size ? document.size() - p : size;
  strncpy(data, document.c_str() + p, len);
  p += len;
  return len;
}

#ifdef TEST_EXTERNALDATAQUERYPARSER

static std::string loadresultstring(QueryResult &res, std::string group = "")
{
  std::string s;

  std::map< std::string, std::string >::iterator v = res.values.begin();
  while(v != res.values.end()) {
    s += group + (*v).first + " = \"" + (*v).second + "\"\n";
    v++;
  }

  std::map< std::string, QueryResult >::iterator g = res.groups.begin();
  while(g != res.groups.end()) {
    s += group + (*g).first + " = {}\n";
    s += loadresultstring((*g).second, group + (*g).first + ".");
    g++;
  }

  return s;
}

char xml[] =
  "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  "<group name=\"dims\">\n"
  "  <value name=\"fisk\" value=\"42\"/>"
  "  <value name=\"futte\" value=\"bamse\"/>"
  "  <group name=\"dims2\">\n"
  "    <value name=\"fisk2\" value=\"42\"/>"
  "    <value name=\"futte2\" value=\"bamse\"/>"
  "  </group>\n"
  "  <group name=\"dims3\">\n"
  "    <value name=\"fisk3\" value=\"42\"/>"
  "    <value name=\"futte3\" value=\"bamse\"/>"
  "  </group>\n"
  "</group>\n";

int main()
{
  ExternalDataQueryParser e(xml);
  e.parse();

  printf("%s\n", loadresultstring(e.result).c_str());

  return 0;
}

#endif