/*  This file is part of epubgrep.
 *  Copyright © 2021 tastytea <tastytea@tastytea.de>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, version 3.
 *
 *  This program 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef EPUBGREP_OPTIONS_HPP
#define EPUBGREP_OPTIONS_HPP

#include "fs-compat.hpp"

#include <boost/program_options/variables_map.hpp>

#include <cstddef>
#include <cstdint>
#include <ostream>
#include <string>
#include <vector>

namespace epubgrep::options
{

namespace po = boost::program_options;

enum class regex_kind
{
    basic,
    extended,
    perl
};

struct options
{
    bool help{false};
    bool version{false};
    regex_kind regex{regex_kind::basic};
    bool grep{false};
    bool ignore_case{false};
    std::vector<std::string> regexp;
    bool raw{false};
    std::uint64_t context{0};
    bool nocolor{false};
    bool no_fn_fs{false};
    bool no_fn_epub{false};
    bool recursive{false};
    bool dereference_recursive{false};
    std::vector<std::string> input_file;
    bool ignore_archive_errors{false};
    bool debug{false};
    bool json{false};
    bool html{false};

    //! For the debug output.
    friend std::ostream &operator<<(std::ostream &out, const options &opts);
};

//! Parse options and return them.
[[nodiscard]] options parse_options(int argc, char *argv[]);

/*!
 *  @brief Returns the path of the config file.
 *
 *  If XDG_CONFIG_HOME is set: ${XDG_CONFIG_HOME}/epubgrep.conf
 *  If HOME is set:            ${HOME}/.config/epubgrep.conf
 *  Otherwise:                 epubgrep.conf
 */
[[nodiscard]] fs::path get_config_path();

//! Parse variables map and return nice options struct.
[[nodiscard]] options parse_again(const po::variables_map &vm);

} // namespace epubgrep::options

#endif // EPUBGREP_OPTIONS_HPP