#ifndef EDGE_BASED_NODE_HPP
#define EDGE_BASED_NODE_HPP

#include "extractor/travel_mode.hpp"
#include "util/typedefs.hpp"

#include <boost/assert.hpp>

#include "osrm/coordinate.hpp"

#include <limits>

namespace osrm
{
namespace extractor
{

/// This is what util::StaticRTree serialized and stores on disk
/// It is generated in EdgeBasedGraphFactory.
struct EdgeBasedNode
{
    EdgeBasedNode()
        : forward_edge_based_node_id(SPECIAL_NODEID), reverse_edge_based_node_id(SPECIAL_NODEID),
          u(SPECIAL_NODEID), v(SPECIAL_NODEID), name_id(0),
          forward_packed_geometry_id(SPECIAL_EDGEID),
          reverse_packed_geometry_id(SPECIAL_EDGEID),
          component{INVALID_COMPONENTID, false},
          fwd_segment_position(std::numeric_limits<unsigned short>::max()),
          forward_travel_mode(TRAVEL_MODE_INACCESSIBLE),
          backward_travel_mode(TRAVEL_MODE_INACCESSIBLE)
    {
    }

    explicit EdgeBasedNode(NodeID forward_edge_based_node_id,
                           NodeID reverse_edge_based_node_id,
                           NodeID u,
                           NodeID v,
                           unsigned name_id,
                           unsigned forward_weight_or_packed_geometry_id_,
                           unsigned reverse_weight_or_packed_geometry_id_,
                           bool is_tiny_component,
                           unsigned component_id,
                           unsigned short fwd_segment_position,
                           TravelMode forward_travel_mode,
                           TravelMode backward_travel_mode)
        : forward_edge_based_node_id(forward_edge_based_node_id),
          reverse_edge_based_node_id(reverse_edge_based_node_id), u(u), v(v), name_id(name_id),
          forward_packed_geometry_id(forward_weight_or_packed_geometry_id_),
          reverse_packed_geometry_id(reverse_weight_or_packed_geometry_id_),
          component{component_id, is_tiny_component},
          fwd_segment_position(fwd_segment_position), forward_travel_mode(forward_travel_mode),
          backward_travel_mode(backward_travel_mode)
    {
        BOOST_ASSERT((forward_edge_based_node_id != SPECIAL_NODEID) ||
                     (reverse_edge_based_node_id != SPECIAL_NODEID));
    }

    static inline util::FixedPointCoordinate Centroid(const util::FixedPointCoordinate a,
                                                      const util::FixedPointCoordinate b)
    {
        util::FixedPointCoordinate centroid;
        // The coordinates of the midpoint are given by:
        centroid.lat = (a.lat + b.lat) / 2;
        centroid.lon = (a.lon + b.lon) / 2;
        return centroid;
    }

    NodeID forward_edge_based_node_id; // needed for edge-expanded graph
    NodeID reverse_edge_based_node_id; // needed for edge-expanded graph
    NodeID u;                          // indices into the coordinates array
    NodeID v;                          // indices into the coordinates array
    unsigned name_id;                  // id of the edge name

    unsigned forward_packed_geometry_id;
    unsigned reverse_packed_geometry_id;
    struct
    {
        unsigned id : 31;
        bool is_tiny : 1;
    } component;
    unsigned short fwd_segment_position; // segment id in a compressed geometry
    TravelMode forward_travel_mode : 4;
    TravelMode backward_travel_mode : 4;
};
}
}

#endif // EDGE_BASED_NODE_HPP