/*
* find_3dcell (cell)
*
* Find the a 3dcell in the current mapset
**************************************************************/
#include <string.h>
#include <grass/gis.h>
#include <grass/G3d.h>


int g3_find_dsp_file(char *cell, char *file, char *mset)
{
    char element[100], name[GNAME_MAX], mapset[GMAPSET_MAX], tofind[GNAME_MAX];

    if (file == NULL || *file == 0)
	return 0;
    
    strcpy (tofind, file);

    if(G__name_is_fully_qualified (cell, name, mapset))
	sprintf (element, "grid3/%s/dsp", name);
    else
	sprintf (element, "grid3/%s/dsp", cell);

    return G_find_file (element, tofind, mset) != NULL ;
}


/* return NULL on error: otherwise returns dspout */
char *check_get_any_dspname(char *dspf, char *g3f, char *mset)
{
    char element[200], question[200];
    static char dspout[200];

    if(!G_legal_filename (dspf))
	return(NULL);

    if (!G_find_grid3(g3f, ""))
        G_fatal_error("[%s]: invalid 3dcell file.", g3f);

    if(mset){   /* otherwise must be reading only  */
	if(g3_find_dsp_file (g3f, dspf, mset)){  /* already exists */
	    sprintf(question, "\n** %s exists. ok to overwrite? ", dspf);
	    if (!G_yes (question,0)){
		if(NULL == G_ask_any ("", dspout, element, "display", 1))
		    return(NULL);

		return(dspout);
	    }
	    /* or else just print a warning & use it as is */
	}
    }

    strcpy(dspout,dspf);

    return(dspout);
}