/******************************************************************************\
* Copyright (c) 2019, Robert van Engelen, Genivia Inc. All rights reserved.    *
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*       derived from this software without specific prior written permission.  *
*                                                                              *
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED *
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,       *
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;  *
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\******************************************************************************/

/**
@file      flag.hpp
@brief     Tri-state Flag class and global flags set by options
@author    Robert van Engelen - engelen@genivia.com
@copyright (c) 2019-2020, Robert van Engelen, Genivia Inc. All rights reserved.
@copyright (c) BSD-3 License - see LICENSE.txt
*/

#ifndef FLAG_HPP
#define FLAG_HPP

#include <reflex/input.h>
#include <set>
#include <string>
#include <vector>

// three-valued logic flags that behave as bool; this allows us to check if a flag was undefined (default) and explicitly enabled/disabled
class Flag {

 public:

  Flag()                     : value(UNDEFINED)  { }
  Flag(bool flag)            : value(flag ? T : F)  { }
  Flag& operator=(bool flag) { value = flag ? T : F; return *this; }
       operator bool() const { return is_true(); }
  bool is_undefined()  const { return value == UNDEFINED; }
  bool is_defined()    const { return value != UNDEFINED; }
  bool is_false()      const { return value == F; }
  bool is_true()       const { return value == T; }

 private:

  enum { UNDEFINED = -1, F = 0, T = 1 } value;

};

// --sort=KEY is n/a or by name, score, size, used time, changed time, created time
enum class Sort { NA, NAME, BEST, SIZE, USED, CHANGED, CREATED };

// -D, --devices and -d, --directories
enum class Action { SKIP, READ, RECURSE };

// ugrep command-line options
extern bool flag_all_threads;
extern bool flag_any_line;
extern bool flag_basic_regexp;
extern bool flag_bool;
extern bool flag_confirm;
extern bool flag_count;
extern bool flag_cpp;
extern bool flag_csv;
extern bool flag_decompress;
extern bool flag_dereference;
extern bool flag_files_with_matches;
extern bool flag_files_without_match;
extern bool flag_fixed_strings;
extern bool flag_hex_cbr;
extern bool flag_hex_chr;
extern bool flag_hex_hbr;
extern bool flag_hidden;
extern bool flag_invert_match;
extern bool flag_json;
extern bool flag_line_buffered;
extern bool flag_line_regexp;
extern bool flag_match;
extern bool flag_no_dereference;
extern bool flag_no_header;
extern bool flag_no_messages;
extern bool flag_not;
extern bool flag_null;
extern bool flag_only_line_number;
extern bool flag_only_matching;
extern bool flag_perl_regexp;
extern bool flag_pretty;
extern bool flag_quiet;
extern bool flag_sort_rev;
extern bool flag_stdin;
extern bool flag_usage_warnings;
extern bool flag_word_regexp;
extern bool flag_xml;
extern Flag flag_binary;
extern Flag flag_binary_without_match;
extern Flag flag_break;
extern Flag flag_byte_offset;
extern Flag flag_column_number;
extern Flag flag_empty;
extern Flag flag_dotall;
extern Flag flag_free_space;
extern Flag flag_heading;
extern Flag flag_hex;
extern Flag flag_ignore_case;
extern Flag flag_initial_tab;
extern Flag flag_line_number;
extern Flag flag_no_filename;
extern Flag flag_smart_case;
extern Flag flag_text;
extern Flag flag_ungroup;
extern Flag flag_with_filename;
extern Flag flag_with_hex;
extern Sort flag_sort_key;
extern Action flag_devices_action;
extern Action flag_directories_action;
extern size_t flag_after_context;
extern size_t flag_before_context;
extern size_t flag_fuzzy;
extern size_t flag_hex_columns;
extern size_t flag_jobs;
extern size_t flag_max_count;
extern size_t flag_max_depth;
extern size_t flag_max_files;
extern size_t flag_max_line;
extern size_t flag_max_mmap;
extern size_t flag_min_depth;
extern size_t flag_min_line;
extern size_t flag_min_magic;
extern size_t flag_min_steal;
extern size_t flag_not_magic;
extern size_t flag_query;
extern size_t flag_tabs;
extern const char *flag_apply_color;
extern const char *flag_binary_files;
extern const char *flag_color;
extern const char *flag_colors;
extern const char *flag_config;
extern const char *flag_devices;
extern const char *flag_directories;
extern const char *flag_encoding;
extern const char *flag_filter;
extern const char *flag_format;
extern const char *flag_format_begin;
extern const char *flag_format_close;
extern const char *flag_format_end;
extern const char *flag_format_open;
extern const char *flag_group_separator;
extern const char *flag_hexdump;
extern const char *flag_label;
extern const char *flag_pager;
extern const char *flag_save_config;
extern const char *flag_separator;
extern const char *flag_sort;
extern const char *flag_stats;
extern const char *flag_tag;
extern std::string flag_config_file;
extern std::set<std::string> flag_config_options;
extern std::vector<std::string> flag_regexp;
extern std::vector<std::string> flag_file;
extern std::vector<std::string> flag_file_type;
extern std::vector<std::string> flag_file_extension;
extern std::vector<std::string> flag_file_magic;
extern std::vector<std::string> flag_filter_magic_label;
extern std::vector<std::string> flag_glob;
extern std::vector<std::string> flag_ignore_files;
extern std::vector<std::string> flag_include;
extern std::vector<std::string> flag_include_dir;
extern std::vector<std::string> flag_include_from;
extern std::vector<std::string> flag_include_fs;
extern std::vector<std::string> flag_exclude;
extern std::vector<std::string> flag_exclude_dir;
extern std::vector<std::string> flag_exclude_from;
extern std::vector<std::string> flag_exclude_fs;
extern std::vector<std::string> flag_all_include;
extern std::vector<std::string> flag_all_include_dir;
extern std::vector<std::string> flag_all_exclude;
extern std::vector<std::string> flag_all_exclude_dir;
extern reflex::Input::file_encoding_type flag_encoding_type;

#endif
