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/*
Copyright (C) 2011-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dkwt-gr.ctr
*/

/**	@file dkwt-gr.c The dkwt-gr module.
*/


#line 10 "dkwt-gr.ctr"

#include "dk3all.h"
#include "dkt.h"
#include "dkwt.h"





#line 18 "dkwt-gr.ctr"



/**	Job structure for dkwt groups.
*/
typedef struct {
  dk3_app_t		*app;		/**< Application structure. */
  dkChar const * const	*msg;		/**< Localized message texts. */
  dkChar const * const	*kwnl;		/**< Keywords, not localized. */
  dk3_option_set_t	*opt;		/**< Options set. */
  int			 f_long;	/**< Flag: Long user listing. */
  int			 exval;		/**< Exit status code. */
} DKWT_GRP_J;



/**	Data for the option set.
*/
static dk3_option_t const dkwt_groups_options[] = {
  { dkT('l'), dkT("long"), 0 },
  { dkT('s'), dkT("short"), 0 }
};

/**	Number of options in the dkt_sort_options array.
*/
static size_t const dkwt_groups_szoptions =
sizeof(dkwt_groups_options)/sizeof(dk3_option_t);



/**	Initialize job structure.
	@param	j	Job structure.
*/
static
void
dkwt_groups_job_init(DKWT_GRP_J *j)
{
  j->app = NULL; j->msg = NULL; j->kwnl = NULL; j->opt = NULL;
  j->f_long = 1; j->exval = DKT_RESULT_ERR_UNSPECIFIC;
}




/**	Clean up job structure after use.
	@param	j	Job structure.
*/
static
void
dkwt_groups_job_cleanup(DKWT_GRP_J *j)
{
  if(j->opt) {
    dk3opt_close(j->opt);
  } j->opt = NULL;
}



/**	Process command line arguments.
	@param	j	Job structure.
	@return	1 on success (can continue), 0 on error.
*/
static
int
dkwt_groups_process_argv(DKWT_GRP_J *j)
{
  int back = 0;
  int			 xargc;
  dkChar const * const	*xargv;

  xargc = dk3app_get_argc(j->app);
  xargv = dk3app_get_argv(j->app);
  xargv++; xargv++; xargc--; xargc--;
  j->opt = dk3opt_open_app(
    dkwt_groups_options,
    dkwt_groups_szoptions,
    dkT('\0'),
    NULL,
    xargc,
    xargv,
    j->app
  );
  if(j->opt) {
    if(0 == dk3opt_get_error_code(j->opt)) {
      back = 1;
      if(dk3opt_is_set(j->opt, dkT('l'))) {
        j->f_long = 2;
	if(dk3opt_is_set(j->opt, dkT('s'))) {
	  back = 0;
	  /* ERROR: -l and -s are exclusive */
	  dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 76);
	}
      } else {
        if(dk3opt_is_set(j->opt, dkT('s'))) {
	  j->f_long = 0;
	}
      }
      if(dk3opt_get_num_args(j->opt) > 0) {
        /* Warning: Arguments ignored. */
	dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 76);
      }
    }
  }
  return back;
}



/**	Run the "list groups" operation.
	@param	j	Job structure.
*/
static
void
dkwt_groups_run(DKWT_GRP_J *j)
{
  dkwt_group_list_t	*gl;
  dkwt_group_t		*gp;
  int			 is_first = 1;
  dkChar const		*ptr;

  gl = dkwt_tool_open_group_list(j->app, j->f_long);
  if(gl) {
    dkwt_tool_reset_group_list(gl);
    dk3sf_initialize_stdout();
    while((gp = (dkwt_group_t *)dk3sto_it_next(gl->i_grp)) != NULL) {
      if(gp->groupname) {
        if((j->f_long) && (!(is_first))) {
	  dk3sf_fputc(dkT('\n'), stdout);
	} is_first = 0;
        dk3sf_fputs(gp->groupname, stdout);
	dk3sf_fputc(dkT('\n'), stdout);
	if(j->f_long) {
	  ptr = gp->groupname;
	  while(*(ptr++)) { dk3sf_fputc(dkT('-'), stdout); }
	  dk3sf_fputc(dkT('\n'), stdout);
	  dk3sf_fputs((j->msg)[39], stdout);
	  dk3sf_fputs((j->msg)[(gp->gtype) ? 42 : 41], stdout);
	  dk3sf_fputc(dkT('\n'), stdout);
	  if(gp->comment) {
	    dk3sf_fputs((j->msg)[40], stdout);
	    dk3sf_fputs(gp->comment, stdout);
	    dk3sf_fputc(dkT('\n'), stdout);
	  }
	  if(gp->textsid) {
	    dk3sf_fputs((j->msg)[43], stdout);
	    dk3sf_fputs(gp->textsid, stdout);
	    dk3sf_fputc(dkT('\n'), stdout);
	  }
	}
      }
    }
    dkwt_tool_close_group_list(gl);
  }
}



int
dkwt_groups(
  dk3_app_t		*app,
  dkChar const * const	*msg,
  dkChar const * const	*kwnl
)
{
  int back = DKT_RESULT_ERR_UNSPECIFIC;
  DKWT_GRP_J j;
  dkwt_groups_job_init(&j);
  j.app = app; j.msg = msg; j.kwnl = kwnl;
  if(dkwt_groups_process_argv(&j)) {
    back = j.exval = DKT_RESULT_OK;
    dkwt_groups_run(&j);
  }
  dkwt_groups_job_cleanup(&j);
  return back;
}