#pragma once

#include "geometry/point2d.hpp"

#include "std/string.hpp"

namespace measurement_utils
{
enum class Units
{
  Metric = 0,
  Imperial = 1
};

inline string DebugPrint(Units units)
{
  switch (units)
  {
  case Units::Imperial: return "Units::Imperial";
  case Units::Metric: return "Units::Metric";
  }
}

inline double MetersToMiles(double m) { return m * 0.000621371192; }
inline double MilesToMeters(double mi) { return mi * 1609.344; }
inline double MetersToFeet(double m) { return m * 3.2808399; }
inline double FeetToMeters(double ft) { return ft * 0.3048; }
inline double FeetToMiles(double ft) { return ft * 5280; }
inline double InchesToMeters(double in) { return in / 39.370; }
inline double NauticalMilesToMeters(double nmi) { return nmi * 1852; }

/// Takes into an account user settings [metric, imperial]
/// @param[in] m meters
/// @param[out] res formatted string for search
/// @return should be direction arrow drawed? false if distance is to small (< 1.0)
bool FormatDistance(double m, string & res);

/// We always use meters and feet/yards for altitude
string FormatAltitude(double altitudeInMeters);
// Return value is measured in km/h for Metric and in mph for Imperial.
string FormatSpeedWithDeviceUnits(double metersPerSecond);
string FormatSpeedWithUnits(double metersPerSecond, Units units);
string FormatSpeed(double metersPerSecond, Units units);
string FormatSpeedUnits(Units units);

/// @param[in] dac  Digits after comma in seconds.
/// Use dac == 3 for our common conversions to DMS.
string FormatLatLonAsDMS(double lat, double lon, int dac = 3);
void FormatLatLonAsDMS(double lat, double lon, string & latText, string & lonText, int dac = 3);
string FormatMercatorAsDMS(m2::PointD const & mercator, int dac = 3);
void FormatMercatorAsDMS(m2::PointD const & mercator, string & lat, string & lon, int dac = 3);

/// Default dac == 6 for the simple decimal formatting.
string FormatLatLon(double lat, double lon, int dac = 6);
string FormatLatLon(double lat, double lon, bool withSemicolon, int dac = 6);
void FormatLatLon(double lat, double lon, string & latText, string & lonText, int dac = 6);
string FormatMercator(m2::PointD const & mercator, int dac = 6);
void FormatMercator(m2::PointD const & mercator, string & lat, string & lon, int dac = 6);

/// Converts OSM distance (height, ele etc.) to meters.
/// @returns false if fails.
bool OSMDistanceToMeters(string const & osmRawValue, double & outMeters);
/// Converts OSM distance (height, ele etc.) to meters string.
/// @returns empty string on failure.
string OSMDistanceToMetersString(string const & osmRawValue,
                                 bool supportZeroAndNegativeValues = true,
                                 int digitsAfterComma = 2);
}  // namespace measurement_utils