#ifndef REVERSE_HPP_6B0AC0FA_E501_4DDA_A7B1_A4835F93B3B2
#define REVERSE_HPP_6B0AC0FA_E501_4DDA_A7B1_A4835F93B3B2
#pragma once

/*
reverse.hpp
*/
/*
Copyright © 2019 Far Group
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. The name of the authors may not be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "../keep_alive.hpp"

#include <iterator>

//----------------------------------------------------------------------------

template<typename container, typename container_ref>
class reverse
{
public:
	explicit reverse(container_ref Container):
		m_Container(FWD(Container))
	{
	}

	[[nodiscard]] auto begin()        { return std::rbegin(m_Container); }
	[[nodiscard]] auto end()          { return std::rend(m_Container); }
	[[nodiscard]] auto begin()  const { return std::rbegin(m_Container); }
	[[nodiscard]] auto end()    const { return std::rend(m_Container); }
	[[nodiscard]] auto cbegin() const { return std::crbegin(m_Container); }
	[[nodiscard]] auto cend()   const { return std::crend(m_Container); }
	[[nodiscard]] auto rbegin()        { return std::begin(m_Container); }
	[[nodiscard]] auto rend()          { return std::end(m_Container); }
	[[nodiscard]] auto rbegin()  const { return std::begin(m_Container); }
	[[nodiscard]] auto rend()    const { return std::end(m_Container); }
	[[nodiscard]] auto crbegin() const { return std::cbegin(m_Container); }
	[[nodiscard]] auto crend()   const { return std::cend(m_Container); }

private:
	container m_Container;
};

template<typename container>
reverse(container&& Container) ->
	reverse<
		keep_alive_type<decltype(Container)>, decltype(Container)
	>;

#endif // REVERSE_HPP_6B0AC0FA_E501_4DDA_A7B1_A4835F93B3B2
