// dial_init.cxx

#include "dial_com/dial_init.h"
#include <string>
#include <iostream>
#include "dataset_util/FileName.h"
#include "dataset_util/FileStatus.h"
#include "dataset_util/Environment.h"
#include "dataset_id/UniqueIdGenerator.h"
#include "dataset_credential/GssCredentialManager.h"

using std::string;
using std::cerr;
using std::endl;
using dset::GssCredentialManager;

int dial::dial_init(const Environment* penv0) {

  const Environment* penv = penv0;
  if ( penv == 0 ) {
    penv = &Environment::initial();
  }
  assert( penv != 0 );

  // Set the UniqueIdGenerator connection $DIAL_UIDS.
  string dial_uids = penv->value("DIAL_UIDS");
  if ( dial_uids.size() == 0 ) {
    cerr << "dial_init: ERROR - DIAL_UIDS is not defined." << endl;
    return 1;
  }
  UniqueIdGenerator::set_generator(dial_uids);

  // Set the owner.
  int cstat = GssCredentialManager::set_default();
  if ( cstat != 0 ) {
    cerr << "dial_init: ERROR - Unable to find credential owner"
         << endl;
    return 2;
  }

  return 0;
}