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<?php |
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declare(strict_types = 1); |
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namespace SportTrackerConnector\Core\Workout\Dumper; |
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use SportTrackerConnector\Core\Workout\Extension\ExtensionInterface; |
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use SportTrackerConnector\Core\Workout\TrackPoint; |
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use SportTrackerConnector\Core\Workout\Workout; |
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/** |
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* Dump a workout to JSON. |
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*/ |
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class JSON implements DumperInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dump(Workout $workout): string |
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{ |
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$data = array(); |
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$tracks = $workout->tracks(); |
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foreach ($tracks as $track) { |
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$data[] = array( |
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'workout' => array( |
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'points' => $this->writeTrackPoints($track->trackPoints()) |
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) |
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); |
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} |
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return json_encode($data, JSON_PRETTY_PRINT); |
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} |
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/** |
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* Write the track points into an array. |
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* |
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* @param TrackPoint[] $trackPoints The track points to write. |
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* @return array |
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*/ |
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private function writeTrackPoints(array $trackPoints) |
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{ |
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$points = array(); |
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$previousPoint = null; |
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foreach ($trackPoints as $trackPoint) { |
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$dateTime = clone $trackPoint->dateTime(); |
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$dateTime->setTimezone(new \DateTimeZone('UTC')); |
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$distance = 0; |
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if ($previousPoint !== null) { |
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$distance = $trackPoint->distanceFromPoint($previousPoint); |
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} |
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$point = array( |
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'time' => $dateTime->format(\DateTime::W3C), |
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'latitude' => $trackPoint->latitude(), |
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'longitude' => $trackPoint->longitude(), |
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'elevation' => $trackPoint->elevation(), |
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'distance' => $distance, |
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'extensions' => $this->writeExtensions($trackPoint->extensions()) |
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); |
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$previousPoint = $trackPoint; |
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$points[] = $point; |
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} |
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return $points; |
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} |
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/** |
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* Write the extensions into an array. |
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* |
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* @param ExtensionInterface[] $extensions The extensions to write. |
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* @return array |
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*/ |
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protected function writeExtensions(array $extensions) |
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{ |
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$return = array(); |
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foreach ($extensions as $extension) { |
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$return[$extension::ID()] = $extension->value(); |
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} |
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return $return; |
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} |
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} |
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dragosprotung /
stc-core
