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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\Extension\HR; |
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use SportTrackerConnector\Core\Workout\Track; |
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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 TCX format. |
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*/ |
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class TCX 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 $workout): string |
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{ |
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$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('TrainingCenterDatabase'); |
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$xmlWriter->writeAttributeNS( |
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'xsi', |
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'schemaLocation', |
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null, |
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'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2 http://www.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd' |
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); |
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$xmlWriter->writeAttribute('xmlns', 'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2'); |
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$xmlWriter->writeAttributeNS('xmlns', 'xsi', null, 'http://www.w3.org/2001/XMLSchema-instance'); |
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$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 TCX. |
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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 $workout) |
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{ |
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$xmlWriter->startElement('Activities'); |
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foreach ($workout->tracks() as $track) { |
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$xmlWriter->startElement('Activity'); |
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$xmlWriter->writeAttribute('Sport', ucfirst($track->sport())); |
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// Use the start date time as the ID. This could be anything. |
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$xmlWriter->writeElement('Id', $this->formatDateTime($track->startDateTime())); |
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$xmlWriter->startElement('Lap'); |
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$xmlWriter->writeAttribute('StartTime', $this->formatDateTime($track->startDateTime())); |
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$xmlWriter->writeElement('TotalTimeSeconds', (string)$track->duration()->totalSeconds()); |
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$xmlWriter->writeElement('DistanceMeters', (string)$track->length()); |
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$this->writeLapHeartRateDate($xmlWriter, $track); |
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$xmlWriter->startElement('Track'); |
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$this->writeTrackPoints($xmlWriter, $track->trackPoints()); |
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$xmlWriter->endElement(); |
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$xmlWriter->endElement(); |
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$xmlWriter->endElement(); |
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} |
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$xmlWriter->endElement(); |
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} |
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/** |
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* Write the track points to the TCX. |
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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 $trackPoints) |
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{ |
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$previousTrackPoint = null; |
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foreach ($trackPoints as $trackPoint) { |
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$xmlWriter->startElement('Trackpoint'); |
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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', $this->formatDateTime($dateTime)); |
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// Position. |
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$xmlWriter->startElement('Position'); |
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$xmlWriter->writeElement('LatitudeDegrees', (string)$trackPoint->latitude()); |
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$xmlWriter->writeElement('LongitudeDegrees', (string)$trackPoint->longitude()); |
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$xmlWriter->endElement(); |
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// Elevation. |
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$xmlWriter->writeElement('AltitudeMeters', (string)$trackPoint->elevation()); |
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// Distance. |
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if ($previousTrackPoint !== null) { |
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$xmlWriter->writeElement('DistanceMeters', (string)$trackPoint->distanceFromPoint($previousTrackPoint)); |
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} else { |
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$xmlWriter->writeElement('DistanceMeters', '0'); |
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} |
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// Extensions. |
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$this->writeExtensions($xmlWriter, $trackPoint->extensions()); |
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$xmlWriter->endElement(); |
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$previousTrackPoint = $trackPoint; |
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} |
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} |
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/** |
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* Write the heart rate data for a lap. |
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* |
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* @param \XMLWriter $xmlWriter The XML writer. |
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* @param Track $track The track to write. |
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*/ |
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protected function writeLapHeartRateDate(\XMLWriter $xmlWriter, Track $track) |
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{ |
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$averageHeartRate = array(); |
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$maxHearRate = null; |
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foreach ($track->trackPoints() as $trackPoint) { |
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if ($trackPoint->hasExtension(HR::ID()) === true) { |
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$pointHearRate = $trackPoint->extension(HR::ID())->value(); |
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$maxHearRate = max($maxHearRate, $pointHearRate); |
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$averageHeartRate[] = $pointHearRate; |
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} |
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} |
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if ($averageHeartRate !== array()) { |
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$xmlWriter->startElement('AverageHeartRateBpm'); |
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$xmlWriter->writeAttributeNS('xsi', 'type', null, 'HeartRateInBeatsPerMinute_t'); |
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$hearRateValue = array_sum($averageHeartRate) / count($averageHeartRate); |
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$xmlWriter->writeElement('Value', (string)$hearRateValue); |
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$xmlWriter->endElement(); |
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} |
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if ($maxHearRate !== null) { |
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$xmlWriter->startElement('MaximumHeartRateBpm'); |
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$xmlWriter->writeAttributeNS('xsi', 'type', null, 'HeartRateInBeatsPerMinute_t'); |
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$xmlWriter->writeElement('Value', (string)$maxHearRate); |
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$xmlWriter->endElement(); |
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} |
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} |
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/** |
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* Write the extensions into the TCX. |
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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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*/ |
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protected function writeExtensions(\XMLWriter $xmlWriter, array $extensions) |
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{ |
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foreach ($extensions as $extension) { |
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switch ($extension::ID()) { |
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case HR::ID(): |
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$xmlWriter->startElement('HeartRateBpm'); |
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$xmlWriter->writeElement('Value', (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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} |
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/** |
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* Format a DateTime object for TCX format. |
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* |
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* @param \DateTimeImmutable $dateTime The date time to format. |
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* @return string |
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*/ |
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protected function formatDateTime(\DateTimeImmutable $dateTime): string |
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{ |
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return $dateTime->format('Y-m-d\TH:i:s\Z'); |
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} |
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} |
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dragosprotung /
stc-core
