#include "ass_funs.h"
namespace AssFuns {
SlipsReturn SlipsCheck(const vector<double>& data, const double& th) {
  SlipsReturn res = {0, 0};
  size_t data_num = data.size();
  if (data_num < 3) {
    return res;
  }
  double data_sum = 0;
  double data_max = data[0];
  double data_min = data[0];
  for (double item : data) {
    data_sum += item;
    data_max = std::max(data_max, item);
    data_min = std::min(data_min, item);
  }
  double data_ave = (data_sum - data_max - data_min) / double(data_num - 2);
  double diff_max =
      std::max(fabs(data_max - data_ave), fabs(data_max - data_ave));
  for (int i = 0; i < data_num; i++) {
    double diff_now = fabs(data[i] - data_ave);
    if (diff_now > fabs(data_ave) * th &&
        fabs(diff_now - diff_max) < std::numeric_limits<double>::epsilon()) {
      res[0] = 1;
      res[1] = i;
      return res;
    }
  }
  return res;
}
}  // namespace AssFuns