#include <getopt.h>
#include <chrono>
#include <fstream>

#include "collectStokesData.hpp"

#include "pcg-cpp/include/pcg_random.hpp"
#include "randutils/randutils.hpp"
#include "unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h"

#define PSPIN_P 3
const int p = PSPIN_P; // polynomial degree of Hamiltonian

using Rng = randutils::random_generator<pcg32>;

int main(int argc, char* argv[]) {
  // model parameters
  unsigned N = 10; // number of spins
  // simulation parameters
  Real ε = 1e-15;
  Real δ = 1;
  unsigned n = 10;

  int opt;

  while ((opt = getopt(argc, argv, "N:e:d:n:")) != -1) {
    switch (opt) {
    case 'N':
      N = (unsigned)atof(optarg);
      break;
    case 'e':
      ε = atof(optarg);
      break;
    case 'd':
      δ = atof(optarg);
      break;
    case 'n':
      n = atof(optarg);
      break;
    default:
      exit(1);
    }
  }

  Rng r;

  for (unsigned i = 0; i < n; i++) {
    auto tag = std::chrono::high_resolution_clock::now();
    std::ofstream output("stokes_" + std::to_string(tag.time_since_epoch().count()) + ".dat");
    collectStokesData<3>(output, N, r.engine(), ε, δ, true, 1.0);
  }

  return 0;
}