search.hpp

/*  This file is part of remwharead.
 *  Copyright © 2019 tastytea <tastytea@tastytea.de>
 *
 *  This program 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, 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef REMWHAREAD_SEARCH_HPP
#define REMWHAREAD_SEARCH_HPP

#include "sqlite.hpp"
#include <list>
#include <string>
#include <vector>

namespace remwharead
{
using std::list;
using std::string;
using std::vector;

class Search
{
public:
    explicit Search(list<Database::entry> entries);

    [[nodiscard]]
    list<Database::entry> search_tags(const string &expression, bool is_re)
        const;

    [[nodiscard]]
    list<Database::entry> search_all(const string &expression, bool is_re)
        const;

    // TODO(tastytea): Think of something more elegant.
    [[nodiscard]]
    list<Database::entry> search_all_threaded(const string &expression,
                                              bool is_re) const;

private:
    const list<Database::entry> _entries;

    [[nodiscard]]
    vector<vector<string>> parse_expression(const string &expression) const;

    [[nodiscard]]
    inline string to_lowercase(const string &str) const;
};
} // namespace remwharead

#endif  // REMWHAREAD_SEARCH_HPP