#ifndef COORDINATE_CALCULATION
#define COORDINATE_CALCULATION

struct FixedPointCoordinate;

#include <string>
#include <utility>

namespace coordinate_calculation
{
double haversine_distance(const int lat1, const int lon1, const int lat2, const int lon2);

double haversine_distance(const FixedPointCoordinate &first_coordinate,
                          const FixedPointCoordinate &second_coordinate);

double great_circle_distance(const FixedPointCoordinate &first_coordinate,
                             const FixedPointCoordinate &second_coordinate);

double great_circle_distance(const int lat1, const int lon1, const int lat2, const int lon2);

void lat_or_lon_to_string(const int value, std::string &output);

double perpendicular_distance(const FixedPointCoordinate &segment_source,
                              const FixedPointCoordinate &segment_target,
                              const FixedPointCoordinate &query_location);

double perpendicular_distance(const FixedPointCoordinate &segment_source,
                              const FixedPointCoordinate &segment_target,
                              const FixedPointCoordinate &query_location,
                              FixedPointCoordinate &nearest_location,
                              double &ratio);

double perpendicular_distance_from_projected_coordinate(
    const FixedPointCoordinate &segment_source,
    const FixedPointCoordinate &segment_target,
    const FixedPointCoordinate &query_location,
    const std::pair<double, double> &projected_coordinate);

double perpendicular_distance_from_projected_coordinate(
    const FixedPointCoordinate &segment_source,
    const FixedPointCoordinate &segment_target,
    const FixedPointCoordinate &query_location,
    const std::pair<double, double> &projected_coordinate,
    FixedPointCoordinate &nearest_location,
    double &ratio);

double deg_to_rad(const double degree);
double rad_to_deg(const double radian);

double bearing(const FixedPointCoordinate &first_coordinate,
               const FixedPointCoordinate &second_coordinate);
}

#endif // COORDINATE_CALCULATION