// dataset_files_t.cxx

#include <string>
#include <iostream>
#include "dataset_util/FileStatus.h"
#include "dataset_xml/XmlParser.h"
#include "dataset_base/Location.h"
#include "dataset_base/Dataset.h"
#include "dataset_base/Dataset_t.h"

using std::string;
using std::cout;
using std::endl;
using dset::LogicalFile;
using dset::Location;
using dset::Dataset;

void msg(string txt) {
  cout << "----- ";
  cout << txt;
  cout << " -----" << endl;
}

int dataset_files_t() {

  system("rm -f dataset.dtd mydst.xml a.dat b.dat dstfiles.dat");

  msg("Show help");
  int stat = system("dataset_files -h");
  assert( stat == 0 );

  msg("Try with nonexistent file");
  stat = system("dataset_files mydst.xml");
  assert( stat != 0 );

  msg("Create test files");
  Text a0("a.dat");
  a0.append("This is file a");
  a0.append("A is for apple");
  a0.write();
  Text b0("b.dat");
  b0.append("This is file b");
  b0.append("B is for bumblebee");
  b0.write();

  msg("Create test dataset");
  Location loc;
  loc.logical_files().push_back(LogicalFile("a.dat"));
  loc.logical_files().push_back(LogicalFile("b.dat"));
  TestDataset dst(loc, DatasetId(101,123));
  dst.lock();
  cout << dst << endl;

  msg("Write XML description of task");
  assert( ! FileStatus("mydst.xml").exists() );
  const XmlElement* pele = dst.xml();
  assert( pele != 0 );
  XmlParser xparser;
  stat = xparser.write("mydst.xml", *pele);
  if ( stat != 0 ) {
    cout << "Parser returned status " << stat << endl;
  }
  assert( stat == 0 );
  assert( FileStatus("mydst.xml").exists() );
  delete pele;

  msg("Try with this XML file");
  stat = system("dataset_files mydst.xml");
  assert( stat == 0 );

  msg("Check file list");
  assert( FileStatus("dstfiles.dat").is_readable() );
  Text files("dstfiles.dat");
  assert( files.size() == 2 );
  string afile = files.line(0);
  string bfile = files.line(1);
  Text a1(afile);
  Text b1(bfile);
  assert( a1 == a0 );
  assert( b1 == b0 );

  return 0;
}

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