/**
* Flatten a track point to be posted on endomondo.
*
* @param TrackPoint $trackPoint The track point to flatten.
* @param float $distance The total distance the point in meters.
* @param float $speed The speed the point in km/h from the previous point.
* @return string
*/
private function flattenTrackPoint(TrackPoint $trackPoint, $distance, $speed)
{
$dateTime = clone $trackPoint->getDateTime();
$dateTime->setTimezone(new \DateTimeZone('UTC'));
return $this->formatEndomondoTrackPoint($dateTime, self::INSTRUCTION_START, $trackPoint->getLatitude(), $trackPoint->getLongitude(), $distance, $speed, $trackPoint->getElevation(), $trackPoint->hasExtension(HR::ID) ? $trackPoint->getExtension(HR::ID)->getValue() : '');
}
