/* vim: set ts=4 sts=4 sw=4 noet : */
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
#include "general.h"
#include "vertex.h"
#include "bond.h"
#include "triangle.h"
#include "cell.h"
#include "vesicle.h"
#include "io.h"
#include "initial_distribution.h"
#include "frame.h"
#include "timestep.h"
#include "poly.h"
#include "sh.h"
#include "shcomplex.h"
#include "dumpstate.h"
#include "restore.h"

#include <fcntl.h>
/** Entrance function to the program
  * @param argv is a number of parameters used in program call (including the program name
  * @param argc is a pointer to strings (character arrays) which holds the arguments
  * @returns returns 0 on success, any other number on fail.
*/

int main(int argv, char *argc[]){
	ts_vesicle *vesicle=NULL;
	ts_tape *tape=NULL;
	ts_uint start_iteration=0;
	force_from_tape=0;
	/* Area and volume for constant area and constant volume are initialized to be zero */
	A0=0;
	V0=0;
	/* create lock file */
	createPidFile("ts_trisurf",".lock",0);
	parse_args(argv,argc); // sets global variable command_line_args (defined in io.h)
	ts_fprintf(stdout,"TRISURF-NG v. %s, compiled on: %s %s.\n", TS_VERSION, __DATE__, __TIME__);
	ts_fprintf(stdout,"Programming done by: Samo Penic and Miha Fosnaric\n");
	ts_fprintf(stdout,"Released under terms of GPLv3\n");
	ts_fprintf(stdout,"Starting program...\n\n");
//	vesicle = parseDump("timestep_000000.vtu");
//		run_simulation(vesicle, vesicle->tape->mcsweeps, vesicle->tape->inititer, vesicle->tape->iterations, 1);

    if(command_line_args.dump_from_vtk[0]!=0){
		ts_fprintf(stdout,"************************************************\n");
		ts_fprintf(stdout,"**** Restoring vesicle from VTK points list ****\n");
		ts_fprintf(stdout,"************************************************\n\n");
		vesicle = parseDump(command_line_args.dump_from_vtk);
//		write_vertex_xml_file(vesicle,9999); // here you can test if restoration and rewritting results in the same dump file. Only the date od creation of dump file must differ.
		tape = vesicle->tape;
		int arguments_no;
		FILE *fd=fopen(".status","r");
		if(fd!=NULL){
			arguments_no=fscanf(fd,"%u", &start_iteration);
			if(arguments_no==0){
				ts_fprintf(stdout,"No information of start iteration in .status file\n");
				}
			fclose(fd);
			start_iteration++; 
		}
		else
			ts_fprintf(stdout,"No .status file. The iteration count will start from 0\n");
    }
	else if(command_line_args.force_from_tape){
		ts_fprintf(stdout,"************************************************\n");
		ts_fprintf(stdout,"**** Generating initial geometry from tape *****\n");
		ts_fprintf(stdout,"************************************************\n\n");
		tape=parsetape(command_line_args.tape_fullfilename);
		vesicle=create_vesicle_from_tape(tape);
	} else {

		ts_fprintf(stdout,"**********************************************************************\n");
		ts_fprintf(stdout,"**** Recreating vesicle from dump file and continuing simulation *****\n");
		ts_fprintf(stdout,"**********************************************************************\n\n");
            	ts_fprintf(stderr, "Dump file does not exist or is not a regular file! Did you mean to invoke trisurf with --force-from-tape  or --restore-from-vtk option?\n\n");
		fatal("Recreating vesicle from binary dump file not supported anymore. Sorry.",254);
	}
	run_simulation(vesicle, tape->mcsweeps, tape->inititer, tape->iterations, start_iteration);
	vesicle_free(vesicle);
	tape_free(tape);
	return 0; //program finished perfectly ok. We return 0.
}