# include <cstdlib>
# include <ctime>
# include <iomanip>
# include <iostream>

using namespace std;

# include "tsp_display.hpp"

int main ( );
void timestamp ( );

//****************************************************************************80

int main ( )

//****************************************************************************80
//
//  Purpose:
//
//    tsp_display_test() tests tsp_display().
//
//  Licensing:
//
//    This code is distributed under the MIT license.
//
//  Modified:
//
//    13 June 2026
//
//  Author:
//
//    John Burkardt
//
{
# define N 42

  int i;
  int i2;
  int n = N;
//
//  Make sure order indices are 0-based!
//
  int order[N] = {
    41, 40, 39, 38, 37, 36, 35, 34, 33, 32,
    31, 30, 29, 28, 27, 26, 25, 24, 23, 22,
    21, 20, 19, 18, 17, 16, 15, 14, 13, 12,
    11, 10,  9,  8,  7,  6,  5,  4,  3,  2, 
     1, 0 };
  string prefix = "dantzig42";
  double x[N*2] = { 
      170.0,  85.0, 
      166.0,  88.0, 
      133.0,  73.0, 
      140.0,  70.0, 
      142.0,  55.0, 
      126.0,  53.0, 
      125.0,  60.0, 
      119.0,  68.0, 
      117.0,  74.0, 
       99.0,  83.0, 
       73.0,  79.0, 
       72.0,  91.0, 
       37.0,  94.0, 
        6.0, 106.0, 
        3.0,  97.0, 
       21.0,  82.0, 
       33.0,  67.0, 
        4.0,  66.0, 
        3.0,  42.0, 
       27.0,  33.0, 
       52.0,  41.0, 
       57.0,  59.0, 
       58.0,  66.0, 
       88.0,  65.0, 
       99.0,  67.0, 
       95.0,  55.0, 
       89.0,  55.0, 
       83.0,  38.0, 
       85.0,  25.0, 
      104.0,  35.0, 
      112.0,  37.0, 
      112.0,  24.0, 
      113.0,  13.0, 
      125.0,  30.0, 
      135.0,  32.0, 
      147.0,  18.0, 
      147.5,  36.0, 
      154.5,  45.0, 
      157.0,  54.0, 
      158.0,  61.0, 
      172.0,  82.0, 
      174.0,  87.0 };
  double *x2;

  timestamp ( );

  cout << "\n";
  cout << "tsp_display_test():\n";
  cout << "  C++ version.\n";
  cout << "  Display the cities and route solving a traveling\n";
  cout << "  salesman problem (TSP).\n";
  cout << "  Dataset is '" << prefix << "'\n";
//
//  Create the circuit data with transposition, reordering and wrap-around.
//
  x2 = new double[(n+1)*2];

  for ( i2 = 0; i2 < n + 1; i2++ )
  {
    if ( i2 < n )
    {
      i = order[i2];
    }
    else
    {
      i = order[0];
    }
    x2[2*i2]   = x[2*i];
    x2[2*i2+1] = x[2*i+1];
  }
//
//  Send the data to the plotter.
//
  tsp_display ( prefix, n + 1, x2 );

  delete [] x2;
//
//  Terminate.
//
  cout << "\n";
  cout << "tsp_display_test():\n";
  cout << "  Normal end of execution.\n";

  timestamp ( );
 
  return ( 0 );
# undef N
}
//****************************************************************************80

void timestamp ( )

//****************************************************************************80
//
//  Purpose:
//
//    timestamp() prints the current YMDHMS date as a time stamp.
//
//  Example:
//
//    31 May 2001 09:45:54 AM
//
//  Licensing:
//
//    This code is distributed under the MIT license. 
//
//  Modified:
//
//    19 March 2018
//
//  Author:
//
//    John Burkardt
//
{
# define TIME_SIZE 40

  static char time_buffer[TIME_SIZE];
  const struct std::tm *tm_ptr;
  std::time_t now;

  now = std::time ( NULL );
  tm_ptr = std::localtime ( &now );

  std::strftime ( time_buffer, TIME_SIZE, "%d %B %Y %I:%M:%S %p", tm_ptr );

  std::cout << time_buffer << "\n";

  return;
# undef TIME_SIZE
}