/* -*- c++ -*- ----------------------------------------------------------
   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
   https://www.lammps.org/, Sandia National Laboratories
   Steve Plimpton, sjplimp@sandia.gov

   Copyright (2003) Sandia Corporation.  Under the terms of Contract
   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
   certain rights in this software.  This software is distributed under
   the GNU General Public License.

   See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */

#ifdef FIX_CLASS
// clang-format off
FixStyle(ave/time,FixAveTime);
// clang-format on
#else

#ifndef LMP_FIX_AVE_TIME_H
#define LMP_FIX_AVE_TIME_H

#include "fix.h"

namespace LAMMPS_NS {

class FixAveTime : public Fix {
 public:
  FixAveTime(class LAMMPS *, int, char **);
  ~FixAveTime() override;
  int setmask() override;
  void init() override;
  void setup(int) override;
  void end_of_step() override;
  double compute_scalar() override;
  double compute_vector(int) override;
  double compute_array(int, int) override;

 private:
  int me, nvalues;
  int nrepeat, nfreq, irepeat;
  bigint nvalid, nvalid_last;
  int *which, *argindex, *value2index, *offcol;
  int *varlen;    // 1 if value is from variable-length compute
  char **ids;
  FILE *fp;
  int nrows;
  int any_variable_length;
  int all_variable_length;
  int lockforever;

  int ave, nwindow, startstep, mode;
  int noff, overwrite;
  int *offlist;
  char *format, *format_user;
  char *title1, *title2, *title3;
  bigint filepos;

  int norm, iwindow, window_limit;
  double *vector;
  double *vector_total;
  double **vector_list;
  double *column;
  double **array;
  double **array_total;
  double ***array_list;

  int column_length(int);
  void invoke_scalar(bigint);
  void invoke_vector(bigint);
  void options(int, int, char **);
  void allocate_arrays();
  bigint nextvalid();
};

}    // namespace LAMMPS_NS

#endif
#endif

/* ERROR/WARNING messages:

E: Illegal ... command

Self-explanatory.  Check the input script syntax and compare to the
documentation for the command.  You can use -echo screen as a
command-line option when running LAMMPS to see the offending line.

E: No values in fix ave/time command

Self-explanatory.

E: Invalid fix ave/time off column

Self-explanatory.

E: Compute ID for fix ave/time does not exist

Self-explanatory.

E: Fix ave/time compute does not calculate a scalar

Self-explanatory.

E: Fix ave/time compute does not calculate a vector

Self-explanatory.

E: Fix ave/time compute vector is accessed out-of-range

The index for the vector is out of bounds.

E: Fix ave/time compute does not calculate an array

Self-explanatory.

E: Fix ave/time compute array is accessed out-of-range

An index for the array is out of bounds.

E: Fix ID for fix ave/time does not exist

Self-explanatory.

E: Fix ave/time fix does not calculate a scalar

Self-explanatory.

E: Fix ave/time fix does not calculate a vector

Self-explanatory.

E: Fix ave/time fix vector cannot be variable length

Self-explanatory.

E: Fix ave/time fix vector is accessed out-of-range

The index for the vector is out of bounds.

E: Fix for fix ave/time not computed at compatible time

Fixes generate their values on specific timesteps.  Fix ave/time
is requesting a value on a non-allowed timestep.

E: Fix ave/time fix does not calculate an array

Self-explanatory.

E: Fix ave/time fix array cannot be variable length

Self-explanatory.

E: Fix ave/time fix array is accessed out-of-range

An index for the array is out of bounds.

E: Variable name for fix ave/time does not exist

Self-explanatory.

E: Fix ave/time variable is not equal-style variable

Self-explanatory.

E: Fix ave/time variable is not vector-style variable

UNDOCUMENTED

E: Fix ave/time mode vector variable cannot be indexed

UNDOCUMENTED

E: Error writing file header

Something in the output to the file triggered an error.

E: Fix ave/time cannot set output array intensive/extensive from these inputs

One of more of the vector inputs has individual elements which are
flagged as intensive or extensive.  Such an input cannot be flagged as
all intensive/extensive when turned into an array by fix ave/time.

E: Invalid timestep reset for fix ave/time

Resetting the timestep has invalidated the sequence of timesteps this
fix needs to process.

E: Error writing out time averaged data

Something in the output to the file triggered an error.

E: Fix ave/time vector-style variable changed length

UNDOCUMENTED

E: Fix ave/time columns are inconsistent lengths

Self-explanatory.

E: Cannot open fix ave/time file %s

The specified file cannot be opened.  Check that the path and name are
correct.

U: Fix ave/time cannot use variable with vector mode

Variables produce scalar values.

*/