<?php
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								namespace App\Jobs;
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								use DB;
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								use Log;
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								use Quartz;
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								use p3k\Multipart;
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								use App\Jobs\Job;
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								use Illuminate\Contracts\Bus\SelfHandling;
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								use Illuminate\Contracts\Queue\ShouldQueue;
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								use DateTime, DateTimeZone;
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								class TripComplete extends Job implements SelfHandling, ShouldQueue
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								{
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								  private $_dbid;
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								  private $_data;
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								  public function __construct($dbid, $data) {
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								    $this->_dbid = $dbid;
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								    $this->_data = $data;
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								  }
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								  public function handle() {
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								    // echo "Job Data\n";
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								    // echo json_encode($this->_data)."\n";
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								    if(!is_array($this->_data)) return;
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								    $db = DB::table('databases')->where('id','=',$this->_dbid)->first();
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								    Log::info("Starting job for ".$db->name);
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								    Log::debug(json_encode($this->_data));
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								    if(!$db->micropub_endpoint) {
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								      Log::info('No micropub endpoint configured for database ' . $db->name);
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								      return;
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								    }
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								    $qz = new Quartz\DB(env('STORAGE_DIR').$db->name, 'r');
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								    // Load the data from the start and end times
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								    $start = new DateTime($this->_data['properties']['start']);
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								    $end = new DateTime($this->_data['properties']['end']);
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								    $results = $qz->queryRange($start, $end);
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								    $features = [];
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								    foreach($results as $id=>$record) {
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								      // Don't include app action tracking data
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								      if(!property_exists($record->data->properties, 'action')) {
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									    // Ignore locations with accuracy worse than 5000m
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									    if(property_exists($record->data->properties, 'horizontal_accuracy') && $record->data->properties->horizontal_accuracy <= 5000) {
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									      $record->data->properties = array_filter((array)$record->data->properties, function($k){
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									        // Remove some of the app-specific tracking keys from each record
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									        return !in_array($k, ['locations_in_payload','desired_accuracy','significant_change','pauses','deferred']);
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									      }, ARRAY_FILTER_USE_KEY);
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									      $features[] = $record->data;
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									    }
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								      }
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								    }
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								    // Build the GeoJSON for this trip
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								    $geojson = [
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								      'type' => 'FeatureCollection',
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								      'features' => $features
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								    ];
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								    $file_path = tempnam(sys_get_temp_dir(), 'compass');
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								    file_put_contents($file_path, json_encode($geojson));
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								    // If there are no start/end coordinates in the request, use the first and last coordinates
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								    if(count($features)) {
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								      if(!array_key_exists('start-coordinates', $this->_data['properties'])) {
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								        $this->_data['properties']['start-coordinates'] = $features[0]->geometry->coordinates;
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								      }
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								      if(!array_key_exists('end-coordinates', $this->_data['properties'])) {
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								        $this->_data['properties']['end-coordinates'] = $features[count($features)-1]->geometry->coordinates;
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								      }
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								    }
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								    $startAdr = false;
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								    if(array_key_exists('start-coordinates', $this->_data['properties'])) {
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								      // Reverse geocode the start and end location to get an h-adr
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								      $startAdr = [
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								        'type' => 'h-adr',
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								        'properties' => [
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								          'latitude' => $this->_data['properties']['start-coordinates'][1],
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								          'longitude' => $this->_data['properties']['start-coordinates'][0],
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								        ]
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								      ];
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								      Log::info('Looking up start location');
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								      $start = self::geocode($this->_data['properties']['start-coordinates'][1], $this->_data['properties']['start-coordinates'][0]);
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								      if($start) {
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								        $startAdr['properties']['locality'] = $start->locality;
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								        $startAdr['properties']['region'] = $start->region;
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								        $startAdr['properties']['country'] = $start->country;
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								        Log::info('Found start: '.$start->full_name.' '.$start->timezone);
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								      }
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								    } else {
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								      $start = false;
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								    }
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								    $endAdr = false;
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								    if(array_key_exists('end-coordinates', $this->_data['properties'])) {
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								      $endAdr = [
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								        'type' => 'h-adr',
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								        'properties' => [
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								          'latitude' => $this->_data['properties']['end-coordinates'][1],
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								          'longitude' => $this->_data['properties']['end-coordinates'][0],
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								        ]
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								      ];
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								      Log::info('Looking up end location');
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								      $end = self::geocode($this->_data['properties']['end-coordinates'][1], $this->_data['properties']['end-coordinates'][0]);
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								      if($end) {
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								        $endAdr['properties']['locality'] = $end->locality;
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								        $endAdr['properties']['region'] = $end->region;
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								        $endAdr['properties']['country'] = $end->country;
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								        Log::info('Found end: '.$end->full_name.' '.$end->timezone);
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								      }
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								    } else {
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								      $end = false;
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								    }
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								    // Set the timezone of the dates based on the location
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								    $startDate = new DateTime($this->_data['properties']['start']);
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								    if($start && $start->timezone) {
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								      $startDate->setTimeZone(new DateTimeZone($start->timezone));
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								    }
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								    $endDate = new DateTime($this->_data['properties']['end']);
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								    if($end && $end->timezone) {
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								      $endDate->setTimeZone(new DateTimeZone($end->timezone));
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								    }
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								    if($endDate->format('U') - $startDate->format('U') < 15) {
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								      Log::info("Skipping trip since it was too short");
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								      return;
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								    }
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								    $params = [
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								      'h' => 'entry',
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								      'published' => $endDate->format('c'),
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								      'trip' => [
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								        'type' => 'h-trip',
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								        'properties' => [
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								          'mode-of-transport' => $this->_data['properties']['mode'],
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								          'start' => $startDate->format('c'),
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								          'end' => $endDate->format('c'),
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								          'route' => 'route.json'
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								          // TODO: avgpace for runs
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								          // TODO: avgspeed for bike rides
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								          // TODO: avg heart rate if available
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								        ]
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								      ]
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								    ];
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								    if($startAdr) {
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								      $params['trip']['properties']['start-location'] = $startAdr;
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								    }
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								    if($endAdr) {
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								      $params['trip']['properties']['end-location'] = $endAdr;
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								    }
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								    if(array_key_exists('distance', $this->_data['properties'])) {
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								      $params['trip']['properties']['distance'] = [
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								        'type' => 'h-measure',
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								        'properties' => [
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								          'num' => round($this->_data['properties']['distance']),
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								          'unit' => 'meter'
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								        ]
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								      ];
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								    }
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								    if(array_key_exists('duration', $this->_data['properties'])) {
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								      $params['trip']['properties']['duration'] = [
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								        'type' => 'h-measure',
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								        'properties' => [
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								          'num' => round($this->_data['properties']['duration']),
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								          'unit' => 'second'
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								        ]
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								      ];
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								    }
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								    if(array_key_exists('cost', $this->_data['properties'])) {
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								      $params['trip']['properties']['cost'] = [
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								        'type' => 'h-measure',
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								        'properties' => [
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								          'num' => round($this->_data['properties']['cost'], 2),
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								          'unit' => 'USD'
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								        ]
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								      ];
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								    }
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								    // If there is trip data, recalculate the distance and duration based on the actual data
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								    if(count($features)) {
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								      $startTime = strtotime($features[0]->properties['timestamp']);
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								      $endTime = strtotime($features[count($features)-1]->properties['timestamp']);
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								      $duration = $endTime - $startTime;
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								      $params['trip']['properties']['duration']['type'] = 'h-measure';
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								      $params['trip']['properties']['duration']['properties']['num'] = $duration;
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								      $params['trip']['properties']['duration']['properties']['unit'] = 'second';
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								      Log::debug("Overriding duration to $duration");
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								      $points = array_map(function($f){
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								        return $f->geometry->coordinates;
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								      }, $features);
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								      $simple = $this->_ramerDouglasPeucker($points, 0.0001);
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								      $last = false;
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								      $distance = 0;
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								      foreach($simple as $p) {
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								        if($last) {
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								          $distance += $this->_gc_distance($p[1], $p[0], $last[1], $last[0]);
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								        }
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								        $last = $p;
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								      }
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								      if($distance) {
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								        $params['trip']['properties']['distance']['type'] = 'h-measure';
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								        $params['trip']['properties']['distance']['properties']['num'] = $distance;
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								        $params['trip']['properties']['distance']['properties']['unit'] = 'meter';
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								        Log::debug("Overriding distance to $distance");
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								      }
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								    }
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								    // echo "Micropub Params\n";
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								    // print_r($params);
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								    $multipart = new Multipart();
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								    $multipart->addArray($params);
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								    $multipart->addFile('route.json', $file_path, 'application/json');
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								    $httpheaders = [
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								      'Authorization: Bearer ' . $db->micropub_token,
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								      'Content-type: ' . $multipart->contentType()
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								    ];
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								    Log::info('Sending to the Micropub endpoint: '.$db->micropub_endpoint);
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								    // Post to the Micropub endpoint
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								    $ch = curl_init($db->micropub_endpoint);
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								    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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								    curl_setopt($ch, CURLOPT_POST, true);
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								    curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheaders);
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								    curl_setopt($ch, CURLOPT_POSTFIELDS, $multipart->data());
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								    curl_setopt($ch, CURLOPT_HEADER, true);
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								    $response = curl_exec($ch);
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								    Log::info("Done!");
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								    Log::info($response);
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								    // echo "========\n";
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								    // echo $response."\n========\n";
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								    //
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								    // echo "\n";
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								  }
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								  public static function geocode($lat, $lng) {
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								    $ch = curl_init(env('ATLAS_BASE').'api/geocode?latitude='.$lat.'&longitude='.$lng);
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								    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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								    curl_setopt($ch, CURLOPT_TIMEOUT, 8);
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								    $response = curl_exec($ch);
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								    if($response) {
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								      return json_decode($response);
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								    }
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								  }
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								  // TODO: move this to a library p3k/Geo
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								  // http://www.loughrigg.org/rdp/
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								  //The author has placed this work in the Public Domain, thereby relinquishing all copyrights.
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								  //You may use, modify, republish, sell or give away this work without prior consent.
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								  //This implementation comes with no warranty or guarantee of fitness for any purpose.
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								  //=========================================================================
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								  //An implementation of the Ramer-Douglas-Peucker algorithm for reducing
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								  //the number of points on a polyline
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								  //see http://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm
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								  //=========================================================================
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								  //Finds the perpendicular distance from a point to a straight line.
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								  //The coordinates of the point are specified as $ptX and $ptY.
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								  //The line passes through points l1 and l2, specified respectively with their
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								  //coordinates $l1x and $l1y, and $l2x and $l2y
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								  public function _perpendicularDistance($ptX, $ptY, $l1x, $l1y, $l2x, $l2y)
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								  {
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								      $result = 0;
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								      if ($l2x == $l1x)
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								      {
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								          //vertical lines - treat this case specially to avoid divide by zero
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								          $result = abs($ptX - $l2x);
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								      }
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								      else
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								      {
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								          $slope = (($l2y-$l1y) / ($l2x-$l1x));
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								          $passThroughY = (0-$l1x)*$slope + $l1y;
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								          $result = (abs(($slope * $ptX) - $ptY + $passThroughY)) / (sqrt($slope*$slope + 1));
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								      }
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								      return $result;
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								  }
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						|
								
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								  //RamerDouglasPeucker
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								  //Reduces the number of points on a polyline by removing those that are closer to the line
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								  //than the distance $epsilon.
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								  //The polyline is provided as an array of arrays, where each internal array is one point on the polyline,
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								  //specified by easting (x-coordinate) with key "0" and northing (y-coordinate) with key "1".
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								  //It is assumed that the coordinates and distance $epsilon are given in the same units.
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						|
								  //The result is returned as an array in a similar format.
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						|
								  //Each point returned in the result array will retain all its original data, including its E and N
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								  //values along with any others.
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								  public function _ramerDouglasPeucker($pointList, $epsilon)
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								  {
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								      if(count($pointList) == 0)
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								        return array();
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						|
								
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								      // Find the point with the maximum distance
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								      $dmax = 0;
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								      $index = 0;
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								      $totalPoints = count($pointList);
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								      for ($i = 1; $i < ($totalPoints - 1); $i++)
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								      {
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								          $d = $this->_perpendicularDistance($pointList[$i][0], $pointList[$i][1],
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								                                     $pointList[0][0], $pointList[0][1],
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								                                     $pointList[$totalPoints-1][0], $pointList[$totalPoints-1][1]);
							 | 
						|
								
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								          if ($d > $dmax)
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								          {
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								              $index = $i;
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						|
								              $dmax = $d;
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						|
								          }
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						|
								      }
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						|
								
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								      $resultList = array();
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						|
								
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								      // If max distance is greater than epsilon, recursively simplify
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								      if ($dmax >= $epsilon)
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								      {
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								          // Recursive call
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								          $recResults1 = $this->_ramerDouglasPeucker(array_slice($pointList, 0, $index + 1), $epsilon);
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								          $recResults2 = $this->_ramerDouglasPeucker(array_slice($pointList, $index, $totalPoints - $index), $epsilon);
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						|
								
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								          // Build the result list
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								          $resultList = array_merge(array_slice($recResults1, 0, count($recResults1) - 1),
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								                                    array_slice($recResults2, 0, count($recResults2)));
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								      }
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								      else
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								      {
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								          $resultList = array($pointList[0], $pointList[$totalPoints-1]);
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						|
								      }
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								      // Return the result
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								      return $resultList;
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								  }
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						|
								
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								  function _gc_distance($lat1, $lng1, $lat2, $lng2) {
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								    return ( 6378100 * acos( cos( deg2rad($lat1) ) * cos( deg2rad($lat2) ) * cos( deg2rad($lng2) - deg2rad($lng1) ) + sin( deg2rad($lat1) ) * sin( deg2rad($lat2) ) ) );
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								  }
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						|
								
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						|
								
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						|
								}
							 |