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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 DateTime; |
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use DateTimeZone; |
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use InvalidArgumentException; |
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use SportTrackerConnector\Core\Workout\Extension\ExtensionInterface; |
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use SportTrackerConnector\Core\Workout\Extension\HR; |
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use SportTrackerConnector\Core\Workout\TrackPoint; |
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use SportTrackerConnector\Core\Workout\Workout; |
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use XMLWriter; |
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/** |
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* Dump a workout to GPX format. |
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*/ |
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class GPX extends AbstractDumper |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toString(Workout $workout) : string |
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{ |
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$xmlWriter = new XMLWriter(); |
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$xmlWriter->openMemory(); |
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$xmlWriter->setIndent(true); |
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$xmlWriter->startDocument('1.0', 'UTF-8'); |
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$xmlWriter->startElement('gpx'); |
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$xmlWriter->writeAttribute('version', '1.1'); |
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$xmlWriter->writeAttribute('creator', 'SportTrackerConnector'); |
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$xmlWriter->writeAttributeNs( |
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'xsi', |
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'schemaLocation', |
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null, |
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'http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/GpxExtensions/v3 http://www.garmin.com/xmlschemas/GpxExtensionsv3.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v1 http://www.garmin.com/xmlschemas/TrackPointExtensionv1.xsd' |
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); |
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$xmlWriter->writeAttribute('xmlns', 'http://www.topografix.com/GPX/1/1'); |
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$xmlWriter->writeAttributeNs( |
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'xmlns', |
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'gpxtpx', |
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null, |
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'http://www.garmin.com/xmlschemas/TrackPointExtension/v1' |
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); |
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$xmlWriter->writeAttributeNs('xmlns', 'gpxx', null, 'http://www.garmin.com/xmlschemas/GpxExtensions/v3'); |
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$xmlWriter->writeAttributeNs('xmlns', 'xsi', null, 'http://www.w3.org/2001/XMLSchema-instance'); |
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$this->writeMetaData($xmlWriter, $workout); |
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$this->writeTracks($xmlWriter, $workout); |
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$xmlWriter->endElement(); |
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$xmlWriter->endDocument(); |
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return $xmlWriter->outputMemory(true); |
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} |
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/** |
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* Write the tracks to the GPX. |
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* |
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* @param XMLWriter $xmlWriter The XML writer. |
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* @param Workout $workout The workout. |
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*/ |
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private function writeTracks(XMLWriter $xmlWriter, Workout $workout) |
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{ |
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foreach ($workout->tracks() as $track) { |
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$xmlWriter->startElement('trk'); |
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$xmlWriter->writeElement('type', $track->sport()); |
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$xmlWriter->startElement('trkseg'); |
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$this->writeTrackPoints($xmlWriter, $track->trackPoints()); |
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$xmlWriter->endElement(); |
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$xmlWriter->endElement(); |
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} |
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} |
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/** |
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* Write the track points to the GPX. |
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* |
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* @param XMLWriter $xmlWriter The XML writer. |
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* @param TrackPoint[] $trackPoints The track points to write. |
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*/ |
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private function writeTrackPoints(XMLWriter $xmlWriter, array $trackPoints) |
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{ |
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foreach ($trackPoints as $trackPoint) { |
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$xmlWriter->startElement('trkpt'); |
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// Location. |
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$xmlWriter->writeAttribute('lat', (string)$trackPoint->latitude()); |
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$xmlWriter->writeAttribute('lon', (string)$trackPoint->longitude()); |
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// Elevation. |
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$xmlWriter->writeElement('ele', (string)$trackPoint->getElevation()); |
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// Time of position |
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$dateTime = clone $trackPoint->dateTime(); |
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$dateTime->setTimezone(new DateTimeZone('UTC')); |
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$xmlWriter->writeElement('time', $dateTime->format(DateTime::W3C)); |
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// Extensions. |
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$this->writeExtensions($xmlWriter, $trackPoint->extensions()); |
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$xmlWriter->endElement(); |
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} |
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} |
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/** |
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* Write the extensions into the GPX. |
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* |
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* @param XMLWriter $xmlWriter The XMLWriter. |
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* @param ExtensionInterface[] $extensions The extensions to write. |
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* @throws InvalidArgumentException If an extension is not known. |
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*/ |
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protected function writeExtensions(XMLWriter $xmlWriter, array $extensions) |
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{ |
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$xmlWriter->startElement('extensions'); |
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foreach ($extensions as $extension) { |
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switch ($extension::ID()) { |
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case HR::ID(): |
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$xmlWriter->startElementNs('gpxtpx', 'TrackPointExtension', null); |
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$xmlWriter->writeElementNs('gpxtpx', 'hr', null, (string)$extension->value()); |
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$xmlWriter->endElement(); |
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break; |
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} |
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} |
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$xmlWriter->endElement(); |
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} |
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/** |
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* Write the metadata in the GPX. |
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* |
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* @param XMLWriter $xmlWriter The XML writer. |
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* @param Workout $workout The workout. |
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*/ |
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protected function writeMetaData(XMLWriter $xmlWriter, Workout $workout) |
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{ |
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$xmlWriter->startElement('metadata'); |
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if ($workout->author() !== null) { |
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$xmlWriter->startElement('author'); |
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$xmlWriter->writeElement('name', $workout->author()->name()); |
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$xmlWriter->endElement(); |
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} |
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$xmlWriter->endElement(); |
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} |
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} |
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dragosprotung /
stc-core
