// Boost.Geometry

// Copyright (c) 2020, Oracle and/or its affiliates.

// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle

// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html

#ifndef BOOST_GEOMETRY_STRATEGIES_ENVELOPE_CARTESIAN_HPP
#define BOOST_GEOMETRY_STRATEGIES_ENVELOPE_CARTESIAN_HPP


#include <type_traits>

#include <b/geometry/strategy/cartesian/envelope.hpp> // Not used, for backward compatibility
#include <b/geometry/strategy/cartesian/envelope_box.hpp>
#include <b/geometry/strategy/cartesian/envelope_boxes.hpp>
#include <b/geometry/strategy/cartesian/envelope_multipoint.hpp>
#include <b/geometry/strategy/cartesian/envelope_point.hpp>
#include <b/geometry/strategy/cartesian/envelope_range.hpp>
#include <b/geometry/strategy/cartesian/envelope_segment.hpp>

#include <b/geometry/strategies/envelope/services.hpp>
#include <b/geometry/strategies/expand/cartesian.hpp>


namespace boost { namespace geometry
{

namespace strategies { namespace envelope
{

template <typename CalculationType = void>
struct cartesian
    : strategies::expand::cartesian<CalculationType>
{
    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         util::enable_if_point_t<Geometry> * = nullptr)
    {
        return strategy::envelope::cartesian_point();
    }

    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         util::enable_if_multi_point_t<Geometry> * = nullptr)
    {
        return strategy::envelope::cartesian_multipoint();
    }

    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         util::enable_if_box_t<Geometry> * = nullptr)
    {
        return strategy::envelope::cartesian_box();
    }

    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         util::enable_if_segment_t<Geometry> * = nullptr)
    {
        return strategy::envelope::cartesian_segment<CalculationType>();
    }

    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         std::enable_if_t
                            <
                                util::is_linestring<Geometry>::value
                             || util::is_ring<Geometry>::value
                             || util::is_polygon<Geometry>::value
                            > * = nullptr)
    {
        return strategy::envelope::cartesian_range();
    }

    template <typename Geometry, typename Box>
    static auto envelope(Geometry const&, Box const&,
                         std::enable_if_t
                            <
                                util::is_multi_linestring<Geometry>::value
                             || util::is_multi_polygon<Geometry>::value
                             || util::is_geometry_collection<Geometry>::value
                            > * = nullptr)
    {
        return strategy::envelope::cartesian_boxes();
    }
};


namespace services
{

template <typename Geometry, typename Box>
struct default_strategy<Geometry, Box, cartesian_tag>
{
    using type = strategies::envelope::cartesian<>;
};


template <>
struct strategy_converter<strategy::envelope::cartesian_point>
{
    static auto get(strategy::envelope::cartesian_point const& )
    {
        return strategies::envelope::cartesian<>();
    }
};

template <>
struct strategy_converter<strategy::envelope::cartesian_multipoint>
{
    static auto get(strategy::envelope::cartesian_multipoint const&)
    {
        return strategies::envelope::cartesian<>();
    }
};

template <>
struct strategy_converter<strategy::envelope::cartesian_box>
{
    static auto get(strategy::envelope::cartesian_box const& )
    {
        return strategies::envelope::cartesian<>();
    }
};

template <typename CT>
struct strategy_converter<strategy::envelope::cartesian_segment<CT> >
{
    static auto get(strategy::envelope::cartesian_segment<CT> const&)
    {
        return strategies::envelope::cartesian<CT>();
    }
};

template <typename CT>
struct strategy_converter<strategy::envelope::cartesian<CT> >
{
    static auto get(strategy::envelope::cartesian<CT> const&)
    {
        return strategies::envelope::cartesian<CT>();
    }
};


} // namespace services

}} // namespace strategies::envelope

}} // namespace boost::geometry

#endif // BOOST_GEOMETRY_STRATEGIES_ENVELOPE_CARTESIAN_HPP
