/**
 * Copyright (C) 1999-2007  Free Software Foundation, Inc.
 *
 * This file is part of GNU gengetopt
 *
 * GNU gengetopt is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * GNU gengetopt 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 General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with gengetopt; see the file COPYING. If not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _GM_H
#define _GM_H

#include "skels/header.h"
#include "skels/c_source.h"

#include <list>
#include <string>

#define TAB_LEN 2

struct gengetopt_option;

typedef std::list<std::string> OptionHelpList;

class CmdlineParserCreator : public header_gen_class, public c_source_gen_class
{
 protected:
  char *parser_function_name;
  char *filename;
  char *args_info_name;
  char *header_filename;
  char *c_filename;
  string output_dir;
  string header_output_dir;
  string src_output_dir;
  string comment;
  char *unamed_options;
  string show_required_string;

  bool long_help;
  bool no_handle_help;
  bool no_help;
  bool no_handle_version;
  bool no_version;
  bool no_handle_error;
  bool conf_parser;
  bool string_parser;
  bool gen_gengetopt_version;
  bool gen_strdup;

  unsigned int tab_indentation ; /* tab indentation level */

  void inc_indent()
    {
      tab_indentation += TAB_LEN ;
    }

  void dec_indent()
    {
      tab_indentation -= TAB_LEN ;
    }

  void indent()
    {
      unsigned int i ;

      for ( i = 1 ; i <= tab_indentation ; ++i )
        printf (" ");
    }

  void free_option(struct gengetopt_option *opt,
                   ostream &stream, unsigned int indent);

  int generate_header_file();
  int generate_source();

  string generate_getopt_string();

  // to be implemented in header_gen_class
  virtual void generate_enum_types(ostream &stream, unsigned int indent);
  virtual void generate_option_arg(ostream &stream, unsigned int indent);
  virtual void generate_option_given(ostream &stream, unsigned int indent);
  virtual void generate_option_values_decl(ostream &stream, unsigned int indent);

  // to be implemented in c_source_gen_class
  virtual void generate_clear_arg(ostream &stream, unsigned int indent);
  virtual void generate_given_init(ostream &stream, unsigned int indent);
  virtual void generate_option_values(ostream &stream, unsigned int indent);

  virtual void generate_handle_no_short_option(ostream &stream,
                                               unsigned int indent);
  virtual void generate_handle_option(ostream &stream, unsigned int indent);
  virtual void generate_handle_required(ostream &stream, unsigned int indent);
  virtual void generate_handle_dependencies(ostream &stream, unsigned int indent);
  virtual void generate_handle_group(ostream &stream, unsigned int indent);
  virtual void generate_group_counters(ostream &stream, unsigned int indent);
  virtual void generate_mode_counters(ostream &stream, unsigned int indent);
  virtual void generate_help_option_print(ostream &stream,
                                          unsigned int indent);
  virtual void generate_full_help_option_print(ostream &stream,
                                          unsigned int indent);
  virtual void generate_detailed_help_option_print(ostream &stream,
                                          unsigned int indent);
  virtual void generate_long_option_struct(ostream &stream,
                                           unsigned int indent);
  virtual void generate_reset_groups(ostream &stream, unsigned int indent);

  virtual void generate_free(ostream &stream, unsigned int indent);
  virtual void generate_list_free(ostream &stream, unsigned int indent);

  virtual void generate_file_save_loop(ostream &stream, unsigned int indent);
  virtual void generate_init_args_info(ostream &stream, unsigned int indent);

  virtual void generate_custom_getopt(ostream &stream, unsigned int indent);

  void generateBreak(ostream &stream, unsigned int indent = 0);

  void handle_options(ostream &, unsigned int, bool has_short);

 public:

  CmdlineParserCreator (char *function_name, char *struct_name,
                        char *unamed_options,
                        char *filename, char *header_ext, char *c_ext,
                        bool long_help,
                        bool no_handle_help, bool no_help,
                        bool no_handle_version, bool no_version,
                        bool no_handle_error, bool conf_parser, bool string_parser,
                        bool gen_version, bool gen_getopt, bool no_options,
                        const string &comment,
                        const string &outdir,
                        const string &header_outdir,
                        const string &src_outdir,
                        const string &show_required);

  int generate();

  virtual void generate_list_def(ostream &stream, unsigned int indent);
  virtual void generate_multiple_fill_array(ostream &stream, unsigned int indent);
  virtual void generate_update_multiple_given(ostream &stream, unsigned int indent);
  virtual void generate_check_modes(ostream &stream, unsigned int indent);

  const string generate_purpose();
  const string generate_description();
  const string generate_usage_string(bool use_config_package = true);

  /**
   * generate a list of option descriptions that will be printed in the
   * help output
   * 
   * @param generate_hidden if true, include also the hidden options
   * @param generate_details if true, include also the hidden options and
   * details for options that have them.
   */
  OptionHelpList *generate_help_option_list(bool generate_hidden = false,
          bool generate_details = false);
  
  /**
   * generate the sharing between a list of help string, using the
   * complete_list as the list with all the strings (both for hidden
   * options and details, e.g.) and the smaller_list as the list
   * with less strings
   * 
   * @param target_array the name of the array to copy to
   * @param source_array the name of the array to copy from
   */
  void generate_help_option_print_from_lists(ostream &stream,
          unsigned int indent, OptionHelpList *complete_list,
          OptionHelpList *smaller_list, const std::string &target_array,
          const std::string &source_array);
  
  /**
   * Sets the has_arg_XXX by inspecting all the options types
   */
  void set_has_arg_types();
};

#endif /* _GM_H */