//-*- mode: c++; indent-tabs-mode: t; coding: utf-8; show-trailing-whitespace: t -*-

// file main.cpp

#include "main.hpp"

//**********************************************************************
//                                                                     *
//    --------------- Electromagnetic Transients Program ------------  *
//                    methods development branch, route eogb           *
//                    division of system engineering                   *
//                    Bonneville Power Administration                  *
//                    P. O. Box 3621                                   *
//                    Portland, Oregon  97208                          *
//                    U.S.A.     phone: (503) 230-4404                 *
//                                                                     *
//    The fortran comment-card text now being read represents a        *
//    summary introduction and explanation which applies to a very     *
//    large program development referred to by the title of            *
//    'electromagnetic transients program'  (abbreviated  'EMTP' ,     *
//    or   't.p.'  in the older notation).                             *
//                                                                     *
//    In general terms, the purpose of this work is to simulate        *
//    transient phenomena in power system networks, taking into        *
//    account traveling waves (electromagnetic transients) on          *
//    transmission lines, saturation of transformers, nonlinearities   *
//    of surge arresters, etc.   While not so restricted in theory,    *
//    the most common program application is for the simulation of     *
//    switching surges which propagate on power network transmission   *
//    lines.   for a more detailed explantion of the modeling          *
//    techniques which are used, the reader is referred to the         *
//    manual for this program (840 pages for the version dated         *
//    march, 1983).  ).    while older issues were titled              *
//    "EMTP user's manual",  beginning in september of 1980            *
//    this work is now called the  "EMTP rule book" .                  *
//                                                                     *
//     The utpf is a large 80-column bcd card-image file, to be used   *
//     as input to e/t programs.   E/t programs machine translate this *
//     utpf code into legal fortran for most computer systems of       *
//     interest (ibm, cdc, univac, honeywell, dec pdp-10, dec vax-11,  *
//     prime, sel, apollo, hitachi, facom, harris, etc.).              *
//                                                                     *
//     In conformity with long-standing bpa policy, as well as the     *
//    more recent (february 19, 1975) federal freedom of information   *
//    act, dissemination of these program materials is freely made     *
//    to any and all interested parties.   a fee to cover reproduction,*
//    handling, and mailing costs may be assessed against the          *
//    organization receiving the material, however.   No claim or      *
//    warranty as to the usefulness, accuracy, fidelity, or            *
//    completeness of these materials is (or ever has been) in any     *
//    way expressed or implied.                                        *
//                                                                     *
//**********************************************************************
//
//    The present module  main00  is always in memory.   It is the
//    highest level module of a program which has two levels of
//    overlaying.   It calls primary level overlays only (directly),
//    based on the value of variable  'nchain' .   The following
//     legitimate values, and the meaning of the associated overlay
//     calls, exist .....
//     1-20.  For overlays 1, 2, ..., 20, which are secondary-level
//            overlays, a call must be first made to the controlling
//            primary-level overlay.   Thus for such  'nchain'  values,
//            control is transfered first to module  main10 .   This
//            is the only case where calls to overlays are not made
//            directly.
//
//     29.  Completion of statistics (Monte Carlo) study, where variable
//          maxima of the different case solutions are read off the
//          disk, and are processed statistically to produce
//          cumulative distribution functions, etc.
//
//     31.  Plot routine, for graphical output of transients.
//          The program also terminates execution here, usually,
//          after writing an end-of-information mark on the
//          plot tape (whether or not the user has plotted anything).
//
//     39.  Supporting routine which generates EMTP branch
//          cards for the frequency-dependent representation of
//          an untransposed transmission line.   this is the
//          "marti setup"  code, named after dr. jose marti of
//          vancouver and caracas (see 1981 ieee pica paper).
//
//     41.  Supporting routine which calculates transformer matrices  (R)
//          and  (L)  from short-circuit and open-circuit data.
//
//     42.  Supporting routine which converts an rms voltage vs. current
//          saturation characteristic into an instantaneous flux vs.
//          current characteristic.
//
//     43.  Supporting routine which calculates weighting functions
//          a1(t)  and  a2(2)  for the zero-sequence mode of a
//          distributed line which has frequency-dependent line
//          constants  r  and  l .
//
//     44.  Supporting routine which calculates line constants for
//          overhead transmission lines by means of carson's formula.
//          this is a modified version of what was originally (until
//          january 1975) the completely-separate bpa line-constants
//          program.
//
//     45.  Supporting routine of  'Semlyen setup'  code.   the output
//          is a group of punched cards, as are required for the EMTP
//          simulation of a transmission circuit using  semlyen
//          recursive convolution modeling.
//
//     47.  Supporting routine of  'cable constants'  code.   the
//          primary function is to calculate  (r),  (l),  %  (c)
//          matrices for a multi-phase system of single-core coaxial
//          cables.
//
//     51.  Printing of introductory paragraph of error-message
//          termination ('you lose, fella, ... '), plus error-message
//          texts for  'kill'  codes numbered  1  through  50 .
//          the exiting linkage is to the last error overlay.
//
//     52.  Error message texts for  'kill'  codes numbered  51
//          the exiting linkage is to the last error overlay.
//
//     53.  Error message texts for  'kill'  codes numbered  91
//          through  150.  the exiting linkage is to the last
//          error overlay.
//
//     54.  Error message texts for  'kill'  codes numbered  151
//          through  200.   the exiting linkage is to the
//          last error overlay.
//
//     55.  Final error overlay.  Messages for  kill = 201
//          onward are contained, as well as summary statistics
//          --- table sizes and timing figures for the run.
//          The exiting linkage is generally to module  over1  (to read
//          a new data case), but may be to module  over31 (for final
//          case termination).
//**********************************************************************

int main(int argc, char *argv[])
{
  char c;
  char optopt;
  int n1;
  long int nReturnValue = EXIT_FAILURE;
  static struct option long_options[] = {
    { "dimensioning-file", optional_argument, nullptr, 'd' },
    { "case-file", optional_argument, nullptr, 'f' },
    { "help", optional_argument, nullptr, 'h' },
    { "output-file", optional_argument, nullptr, 'o' },
    { "verbose", optional_argument, nullptr, 'v' },
    { "version", optional_argument, nullptr, 'V' },
    { nullptr, 0, nullptr, 0 }
  };
  struct winsize sWindow;
  //
  auto a2010 = [&](void)
  {
    if(blkcom::nM4Plot == 1)
      ;//emtspy();
    switch(blkcom::nChain) {
    case 29:
#ifdef WITH_OVER29
      over29();
#else
      emtp::dummy();
#endif
      break;

    case 31:
#ifdef WITH_OVER31
      over31();
#else
      emtp::dummy();
#endif
      break;

    case 39:
#ifdef WITH_OVER39
      over39();
#else
      emtp::dummy();
#endif
      break;

    case 41:
#ifdef WITH_OVER41
      over41();
#else
      emtp::dummy();
#endif
      break;

    case 42:
#ifdef WITH_OVER42
      over42();
#else
      emtp::dummy();
#endif
      break;

    case 44:
#ifdef WITH_OVER44
      over44();
#else
      emtp::dummy();
#endif
      break;

    case 45:
#ifdef WITH_OVER45
      over45();
#else
      emtp::dummy();
#endif
      break;

    case 47:
#ifdef WITH_OVER47
      over47();
#else
      emtp::dummy();
#endif
      break;

    case 51:
#ifdef WITH_OVER51
      over51::over51();
#else
      emtp::dummy();
#endif
      break;

    case 52:
#ifdef WITH_OVER52
      over52();
#else
      emtp::dummy();
#endif
      break;

    case 53:
#ifdef WITH_OVER53
      over53();
#else
      emtp::dummy();
#endif
      break;

    case 54:
#ifdef WITH_OVER54
      over54();
#else
      emtp::dummy();
#endif
      break;

    case 55:
#ifdef WITH_OVER55
      over55();
#else
      emtp::dummy();
#endif
      break;

    default:
      (*reinterpret_cast<std::ostream *> (blkcom::pLFiles[ 5 ])) << std::endl << " Illegal NCHAIN in MAIN00." << blkcom::nChain << std::endl << std::flush;
      break;
    }
  };
  auto a2001 = [&](void)
  {
    //
    n1 = blkcom::nChain;
    if(n1 > 30)
      n1 -= 30;
    if(n1 <= 0)
      n1 = 1;
    if(blkcom::nIprsUp == 0)
      blkcom::nIprsUp = blkcom::pIprsOV[ n1 - 1 ];
    if(blkcom::nChain > 20)
      a2010();
    else {
      if((blkcom::nChain == 12) || (blkcom::nChain == 2))
        emtp::main10();
      else {
        if(blkcom::nChain == -1)
          ;//movecopy::move0(&blkcom::pIprsOv[ 0 ], nLL34);
	emtp::vardim(emtp::sSizesFileName, blkcom::sLStat);
        emtp::erexit();
        blkcom::nChain = 0;
        if (blkcom::nChain <= 20)
          emtp::main10();
      }
    }
  };
  //
  opterr = 0;
  optind = 0;
  blkcom::nLLBuff = -3333;
  blkcom::nChain = -1;
  blkcom::nLastOV = 0;
  blkcom::nKill = 0;
  blkcom::pLFiles[ 0 ] = reinterpret_cast<void *>(&std::cerr);
  blkcom::pLFiles[ 4 ] = reinterpret_cast<void *>(&std::cin);
  blkcom::pLFiles[ 5 ] = reinterpret_cast<void *>(&std::cout);
  sWindow = utilities::getTerminalSize();
  if(sWindow.ws_col >= 132)
    blkcom::nKol132 = 132;
  else if(sWindow.ws_col >= 80)
    blkcom::nKol132 = 80;
  else
    blkcom::nKol132 = sWindow.ws_col;
  while((c = getopt_long(argc, argv, "d:f:ho:vV", long_options, &optind)) != -1) {
    switch(c) {
    case 0:
      // If this option set a flag, do nothing else now.
      if(long_options[ optind ].flag != 0)
	break;
      std::cout << "Option " << long_options[ optind ].name;
      if(optarg)
	std::cout << " with arg " << optarg;
      std::cout << std::endl;
      break;

    case 'd':
      {
	std::stringstream sTemp(optarg);
	if(sTemp.str().empty()) {
	  blkcom::nChain = 51;
	  blkcom::nKill = 100;
	  emtp::sSizesFileName = "";
	} else {
	  emtp::sSizesFileName = sTemp.str();
	}
      }
      break;

    case 'f':
      // To do.
      break;

    case 'h':
      std::cout << "Usage: gemtp++ [-d|--dimensioning-file dimfile] [-f|--case-file infile] [-h|--help] [-o|--output-file outfile] [-v|--verbose] [-V|--Version] [< infile]" << std::endl;
      emtp::stoptp();
      exit(EXIT_SUCCESS);
      break;

    case 'o':
      // To do.
      break;

    case 'v':
      ++blkcom::nIprsUp;
      break;

    case 'V':
      // To do.
      break;
    }
  }
  FOREVER {
    switch(blkcom::nKill) {
    case 0:
    case 9999:
      a2001();
      break;

    case 7733:
      (*reinterpret_cast<std::ostream *>(blkcom::pLFiles[ 5 ])) << " \"main\" intercept of \"begin\" request." << std::endl << std::flush;
      blkcom::nKill = 0;
      blkcom::nNumDCD = 0;
      blkcom::nChain = 1;
      emtp::main10();
      break;

    default:
      if(blkcom::nChain > 51)
        a2001();
      else {
        blkcom::nChain = 51;
        a2001();
      }
      break;
    }
  }
  ;;
  return nReturnValue;
}

// end of file main.cpp