/*****************************************************************************
The Dark Mod GPL Source Code

This file is part of the The Dark Mod Source Code, originally based
on the Doom 3 GPL Source Code as published in 2011.

The Dark Mod Source Code 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 of the License,
or (at your option) any later version. For details, see LICENSE.TXT.

Project: The Dark Mod (http://www.thedarkmod.com/)

******************************************************************************/

#ifndef STD_FILESYSTEM_H_
#define STD_FILESYSTEM_H_

#include <stdint.h>
#include <string>
#include <memory>
#include <vector>
#include <system_error>

namespace stdext {
	//all of these types and functions are equivalents to boost::filesystem namespace contents
	//also, they neatly wrap std::filesystem code

	struct path_impl;

	class path {
	public:
		~path();
		path();
		path(const path& path);
		path& operator= (const path &path);
		path(path&& path);
		path& operator= (path &&path);

		path(const path_impl& impl);
		path(const char *source);
		path(const std::string &source);
		std::string string() const;
		path parent_path() const;
		path filename() const;
		path extension() const;
		path stem() const;
		path& remove_filename();

	private:
		std::unique_ptr<path_impl> d;
		friend path_impl &get(path &path);
		friend const path_impl &get(const path &path);
	};

	path operator/(const path& lhs, const path& rhs);
	path& operator/=(path& lhs, const path& rhs);
	bool operator==(const path& lhs, const path& rhs);
	bool operator<(const path& lhs, const path& rhs);

	bool is_directory(const path &path);
	bool create_directory(const path &path);
	bool exists(const path &path);
	bool create_directories(const path &path);
	bool remove(const path &path);
	uint64_t file_size(const path &path);
	uint64_t remove_all(const path& path);
	void copy_file(const path &from, const path &to);
	void rename(const path &from, const path &to);

	//below is some replacement for C++ iterator mess
	//(cost of memory allocation should be negligible compare to cost of filesystem access)

	//replacement for directory_iterator
	std::vector<path> directory_enumerate(const path &path);
	//replacement for recursive_directory_iterator
	std::vector<path> recursive_directory_enumerate(const path &path);

	class filesystem_error : public std::system_error {
	public:
		filesystem_error(const char *what_arg, std::error_code ec);
	};
}

#endif