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<?php
namespace App\Http\Controllers;
use Laravel\Lumen\Routing\Controller as BaseController;
use Illuminate\Http\Request;
use DB, Log, Cache;
use Quartz;
use DateTime, DateTimeZone, DateInterval;
use App\Jobs\TripComplete;
use App\Jobs\NotifyOfNewLocations;
class Api extends BaseController
{
public function account(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('write_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
return response(json_encode(['name' => $db->name]))->header('Content-Type', 'application/json');
}
public function query(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('read_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
$qz = new Quartz\DB(env('STORAGE_DIR').$db->name, 'r');
if($request->input('tz')) {
$tz = $request->input('tz');
} else {
$tz = 'UTC';
}
if($date=$request->input('date')) {
$start = DateTime::createFromFormat('Y-m-d H:i:s', $date.' 00:00:00', new DateTimeZone($tz));
$end = DateTime::createFromFormat('Y-m-d H:i:s', $date.' 23:59:59', new DateTimeZone($tz));
} elseif(($start=$request->input('start')) && ($end=$request->input('end'))) {
$start = new DateTime($start, new DateTimeZone($tz));
$end = new DateTime($end, new DateTimeZone($tz));
} else {
return response(json_encode(['error' => 'no date provided']))->header('Content-Type', 'application/json');
}
$results = $qz->queryRange($start, $end);
$locations = [];
$properties = [];
$events = [];
if($request->input('format') == 'linestring') {
foreach($results as $id=>$record) {
// When returning a linestring, separate out the "event" records from the "location" records
if($record->data) {
if(property_exists($record->data->properties, 'action')) {
$rec = $record->data;
# add a unixtime property
$rec->properties->unixtime = (int)$record->date->format('U');
$events[] = $rec;
} else {
#$record->date->format('U.u');
// Ignore super inaccurate locations
if(!property_exists($record->data->properties, 'horizontal_accuracy')
|| $record->data->properties->horizontal_accuracy <= 5000) {
$locations[] = $record->data;
$props = $record->data->properties;
$date = $record->date;
$date->setTimeZone(new DateTimeZone($tz));
$props->timestamp = $date->format('c');
$props->unixtime = (int)$date->format('U');
$properties[] = $props;
}
}
}
}
$linestring = array(
'type' => 'LineString',
'coordinates' => [],
'properties' => $properties
);
foreach($locations as $loc) {
if(property_exists($loc, 'geometry'))
$linestring['coordinates'][] = $loc->geometry->coordinates;
else
$linestring['coordinates'][] = null;
}
$response = array(
'linestring' => $linestring,
'events' => $events
);
} else {
foreach($results as $id=>$record) {
if($record->data) {
$locations[] = $record->data;
}
}
$response = [
'locations' => $locations
];
}
return response(json_encode($response))->header('Content-Type', 'application/json');
}
public function last(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('read_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
if($request->input('tz')) {
$tz = $request->input('tz');
} else {
$tz = 'UTC';
}
if($input=$request->input('before')) {
// If a specific time was requested, look up the data in the filesystem
$qz = new Quartz\DB(env('STORAGE_DIR').$db->name, 'r');
if(preg_match('/^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}$/', $input)) {
// If the input date is given in YYYY-mm-dd HH:mm:ss format, interpret it in the timezone given
$date = DateTime::createFromFormat('Y-m-d H:i:s', $input, new DateTimeZone($tz));
} else {
// Otherwise, parse the string and use the timezone in the input
$date = new DateTime($input);
$date->setTimeZone(new DateTimeZone($tz));
}
if(!$date) {
return response(json_encode(['error' => 'invalid date provided']))->header('Content-Type', 'application/json');
}
/* ********************************************** */
// TODO: move this logic into QuartzDB
// Load the shard for the given date
$shard = $qz->shardForDate($date);
// If the shard doesn't exist, check one day before
if(!$shard->exists()) {
$date = $date->sub(new DateInterval('PT86400S'));
$shard = $qz->shardForDate($date);
}
// Now if the shard doesn't exist, return an empty result
if(!$shard->exists()) {
return response(json_encode([
'data'=>null
]));
}
// Start iterating through the shard and look for the last line that is before the given date
$shard->init();
$record = false;
foreach($shard as $r) {
if($r->date > $date)
break;
$record = $r;
}
/* ********************************************** */
if(!$record) {
return response(json_encode([
'data'=>null
]));
}
$response = [
'data' => $record->data,
];
} else {
// If no specific time was requested, use the cached location from the database
$response = [
'data' => json_decode($db->last_location),
];
}
if($request->input('geocode') && property_exists($response['data'], 'geometry') && property_exists($response['data']->geometry, 'coordinates')) {
$coords = $response['data']->geometry->coordinates;
$params = [
'latitude' => $coords[1],
'longitude' => $coords[0],
'date' => $response['data']->properties->timestamp
];
$geocode = self::geocode($params);
if($geocode) {
$response['geocode'] = $geocode;
} else {
$response['geocode'] = null;
}
}
return response(json_encode($response))->header('Content-Type', 'application/json');
}
public function trip(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('read_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
if($db->current_trip) {
$response = [
'trip' => json_decode($db->current_trip)
];
} else {
$response = [
'trip' => null
];
}
return response(json_encode($response))->header('Content-Type', 'application/json');
}
public function input(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('write_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
if(!is_array($request->input('locations')))
return response(json_encode(['error' => 'invalid input', 'error_description' => 'parameter "locations" must be an array of GeoJSON data with a "timestamp" property']))->header('Content-Type', 'application/json');
$qz = new Quartz\DB(env('STORAGE_DIR').$db->name, 'w');
$num = 0;
$trips = 0;
$last_location = false;
foreach($request->input('locations') as $loc) {
if(array_key_exists('properties', $loc)) {
if(array_key_exists('timestamp', $loc['properties'])) {
try {
if(preg_match('/^\d+\.\d+$/', $loc['properties']['timestamp']))
$date = DateTime::createFromFormat('U.u', $loc['properties']['timestamp']);
elseif(preg_match('/^\d+$/', $loc['properties']['timestamp']))
$date = DateTime::createFromFormat('U', $loc['properties']['timestamp']);
else
$date = new DateTime($loc['properties']['timestamp']);
if($date) {
$cacheKey = 'compass::'.$db->name.'::'.$date->format('U');
// Skip adding if the timestamp is already in the cache.
// Helps prevent writing duplicate data when the HTTP request is interrupted.
if(!env('CACHE_DRIVER') || !Cache::has($cacheKey)) {
$num++;
$qz->add($date, $loc);
if(env('CACHE_DRIVER'))
Cache::put($cacheKey, 1, 360); // cache this for 6 hours
$last_location = $loc;
}
if(array_key_exists('type', $loc['properties']) && $loc['properties']['type'] == 'trip') {
try {
$job = (new TripComplete($db->id, $loc))->onQueue('compass');
$this->dispatch($job);
$trips++;
Log::info('Got a trip record');
} catch(Exception $e) {
Log::warning('Received invalid trip');
}
}
} else {
Log::warning('Received invalid date: ' . $loc['properties']['timestamp']);
}
} catch(Exception $e) {
Log::warning('Received invalid date: ' . $loc['properties']['timestamp']);
}
}
}
}
if($request->input('current')) {
$last_location = $request->input('current');
Log::info('Device sent current location');
}
$response = [
'result' => 'ok',
'saved' => $num,
'trips' => $trips
];
if($last_location) {
/*
// 2017-08-22 Don't geocode cause it takes too long. Maybe make a separate route for this later.
$geocode = self::geocode(['latitude'=>$last_location['geometry']['coordinates'][1], 'longitude'=>$last_location['geometry']['coordinates'][0]]);
$response['geocode'] = [
'full_name' => $geocode->full_name,
'locality' => $geocode->locality,
'country' => $geocode->country
];
*/
$response['geocode'] = null;
// Cache the last location in the database
if(isset($last_location['properties']['timestamp'])) {
if(preg_match('/^\d+\.\d+$/', $last_location['properties']['timestamp']))
$date = DateTime::createFromFormat('U.u', $last_location['properties']['timestamp']);
elseif(preg_match('/^\d+$/', $last_location['properties']['timestamp']))
$date = DateTime::createFromFormat('U', $last_location['properties']['timestamp']);
else
$date = new DateTime($last_location['properties']['timestamp']);
$date->setTimeZone(new DateTimeZone('UTC'));
$date = $date->format('Y-m-d H:i:s');
} else {
$date = null;
}
DB::table('databases')->where('id', $db->id)
->update([
'last_location' => json_encode($last_location, JSON_UNESCAPED_SLASHES+JSON_PRETTY_PRINT),
'last_location_date' => $date,
]);
// Notify subscribers that new data is available
if($db->ping_urls) {
$job = (new NotifyOfNewLocations($db->id, $last_location))->onQueue('compass');
$this->dispatch($job);
}
}
if($request->input('trip')) {
DB::table('databases')->where('id', $db->id)
->update([
'current_trip' => json_encode($request->input('trip'), JSON_UNESCAPED_SLASHES+JSON_PRETTY_PRINT)
]);
} else {
DB::table('databases')->where('id', $db->id)->update(['current_trip' => null]);
}
return response(json_encode($response))->header('Content-Type', 'application/json');
}
public function trip_complete(Request $request) {
$token = $request->input('token');
if(!$token)
return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
$db = DB::table('databases')->where('write_token','=',$token)->first();
if(!$db)
return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
if($request->input('tz')) {
$tz = new DateTimeZone($request->input('tz'));
} else {
$tz = new DateTimeZone('UTC');
}
$start = new DateTime($request->input('start'), $tz);
$end = new DateTime($request->input('end'), $tz);
$loc = [
'properties' => [
'mode' => $request->input('mode'),
'start' => $start->format('c'),
'end' => $end->format('c'),
]
];
try {
$job = (new TripComplete($db->id, $loc))->onQueue('compass');
$this->dispatch($job);
Log::info('Got a manual trip record: '.$start->format('c').' '.$end->format('c'));
} catch(Exception $e) {
Log::warning('Received invalid trip');
}
return response(json_encode(['result' => 'ok']))->header('Content-Type', 'application/json');
}
public static function geocode($params) {
$ch = curl_init(env('ATLAS_BASE').'api/geocode?'.http_build_query($params));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 8);
$response = curl_exec($ch);
if($response) {
return json_decode($response);
}
}
}