// XmlParser_t.cxx

#include "dataset_xml/XmlParser.h"
#include <string>
#include <iostream>
#include <cassert>
#include <utility>
#include "dataset_util/DtdRegistry.h"

using std::string;
using std::ostream;
using std::cout;
using std::endl;

void msg(const char* msg) {
  cout << "----- ";
  cout << msg;
  cout << " -----" << endl;
}

bool check(int stat) {
  if ( stat == 0 ) return true;
  cout << "Status is " << stat << endl;
  return false;
}

int XmlParser_t() {

  // Create XML for two objects.
  string xfile1 = "test_env1.xml";
  string xfile2 = "test_env2.xml";
  {
    Text xml;
    xml.append("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>");
    xml.append("<!DOCTYPE Text SYSTEM \"dataset.dtd\">");
    xml.append("");
    xml.append(
      "<Text name=\"file1.dat\" nline=\"0\"/>"
    );
    xml.write(xfile1);
  }
  {
    Text xml;
    xml.append("<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>");
    xml.append("<!DOCTYPE Text SYSTEM \"dataset.dtd\">");
    xml.append("");
    xml.append(
      "<Text name=\"file2.dat\" nline=\"0\"/>"
    );
    xml.write(xfile2);
  }

  msg("Parse");
  {
    XmlParser par;
    const XmlElement* pele = par.parse(xfile1);
    cout << *pele << endl;
    assert( pele->name() == "Text" );
    msg("Parse again");
    const XmlElement* pele1 = par.parse(xfile1);
    cout << *pele1 << endl;
    assert( pele->name() == "Text" );
    msg("Parse new file");
    const XmlElement* pele2 = par.parse(xfile2);
    cout << *pele2 << endl;
    assert( pele->name() == "Text" );
    msg("Write");
    assert( check(par.write(xfile1, *pele)) );
    {
      string newfile = "new" + xfile1;
      string com1 = "if test -r " + newfile + "; then rm " + 
                    newfile + "; fi";
      assert( system(com1.c_str()) == 0 );
      string com = "test -r " + newfile;
      assert( system(com.c_str()) != 0 );
      assert( par.write(newfile, *pele) == 0 );
      assert( system(com.c_str()) == 0 );
      msg("..Read back");
      const XmlElement* pele3 = par.parse(newfile);
      assert( pele3 != 0 );
      cout << *pele3 << endl;
      assert( pele3->name() == "Text" );
      assert( pele->to_xml_text() == pele3->to_xml_text() );
    }
    delete pele;
  }

  msg("Parse text");
  {
    XmlParser par;
    string xtxt =
      "<Text name=\"NAME1\" nline=\"0\"/>";
    const XmlElement* pele = par.parse(xtxt);
    assert( pele != 0 );
    cout << *pele << endl;
    assert( pele->name() == "Text" );
  }

  msg("All tests passed.");
  return 0;
}

#ifdef CTEST_MAIN
int main() {
  return XmlParser_t();
}
#endif