/* Copyright (C) 2006 Imperial College London and others.

Please see the AUTHORS file in the main source directory for a full list

of copyright holders.

Prof. C Pain

Applied Modelling and Computation Group

Department of Earth Science and Engineering

Imperial College London

amcgsoftware@imperial.ac.uk

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation,

version 2.1 of the License.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

USA

*/

#include <iostream>

#include <map>

#include <sstream>

#include <stdlib.h>

#include <stdio.h>

#include <unistd.h>

#include "confdefs.h"

#include "c++debug.h"

#include "flmpi.h"

using namespace std;

extern "C"{

void meshconv(const char* input_basename, size_t input_basename_len, const char* input_mesh_format,

size_t input_mesh_format_len, const char* output_mesh_format, size_t output_mesh_format_len);

}

void Usage(){

cerr << "Usage: meshconv [OPTIONS] ... inputname \n"

<< "with 'inputname' being the basename of the input mesh file\n"

<< "\n"

<< "Options:\n"

<< "\n"

<< "-h\t\tDisplay this help\n"

<< "-i\t\tInput mesh format\n"

<< "-o\t\tOutput mesh format\n"

<< "-l\t\tWrite output to log files\n"

<< "-v\t\tVerbose mode\n"

<< "\n"

<< "With the options 'i' and 'o' being one of the following:\n"

<< " * triangle\n"

<< " * gmsh\n"

<< " * exodusii\n"

<< "whereas 'exodusii' is only allowed as an input-mesh-format." << endl;

}

int main(int argc, char** argv){

#ifdef HAVE_MPI

MPI_Init(&argc, &argv);

// Undo some MPI init shenanigans

int ierr = chdir(getenv("PWD"));

if (ierr == -1) {

cerr << "Unable to switch to directory " << getenv("PWD");

abort();

}

#endif

// Modified version of fldecomp argument parsing

// Get any command line arguments

// Reset optarg so we can detect changes

optarg = NULL;

char c;

map<char, string> args;

while((c = getopt(argc, argv, "i:o:hlv")) != -1){

if (c != '?'){

if(optarg == NULL){

args[c] = "true";

}else{

args[c] = optarg;

}

}else{

if(isprint(optopt)){

cerr << "Unknown option " << optopt << endl;

}else{

cerr << "Unknown option " << hex << optopt << endl;

}

Usage();

exit(-1);

}

}

// Logging

if(args.count('l')){

int rank = 0;

#ifdef HAVE_MPI

int init_flag;

MPI_Initialized(&init_flag);

if(init_flag){

MPI_Comm_rank(MPI_COMM_WORLD, &rank);

}

#endif

ostringstream buffer;

buffer << "meshconv.log-" << rank;

if(freopen(buffer.str().c_str(), "w", stdout) == NULL){

cerr << "Failed to redirect stdout" << endl;

exit(-1);

}

buffer.str("");

buffer << "meshconv.err-" << rank;

if(freopen(buffer.str().c_str(), "w", stderr) == NULL){

cerr << "Failed to redirect stderr" << endl;

exit(-1);

}

buffer.str("");

}

// Help

if(args.count('h')){

Usage();

exit(0);

}

// Verbosity

int verbosity = 0;

if(args.count('v') > 0){

verbosity = 3;

}

set_global_debug_level_fc(&verbosity);

// Input and output base names

string input_basename;

if(argc == optind + 2){

input_basename = argv[optind + 1];

}else if(argc == optind + 1){

input_basename = argv[optind];

}else{

Usage();

exit(-1);

}

// Input and output mesh formats:

string input_mesh_format, output_mesh_format;

if(args.count('i') == 0){

Usage();

exit(-1);

}

input_mesh_format = args['i'].c_str();

if(args.count('o') == 0){

Usage();

exit(-1);

}

output_mesh_format = args['o'].c_str();

// Stop the program if 'exodusii' was given as output format:

if (output_mesh_format.compare("exodusii") == 0){

cerr << "Error: ExodusII is only allowed as an INPUT mesh format." << endl;

exit(-1);

}

size_t input_basename_len = input_basename.size();

size_t input_mesh_format_len = input_mesh_format.size();

size_t output_mesh_format_len = output_mesh_format.size();

meshconv(input_basename.c_str(), input_basename_len, input_mesh_format.c_str(), input_mesh_format_len, output_mesh_format.c_str(), output_mesh_format_len);

#ifdef HAVE_MPI

MPI_Finalize();

#endif

return 0;

}