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<?php |
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namespace LeKoala\GeoTools\Services; |
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use Exception; |
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use LeKoala\GeoTools\Models\Address; |
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use LeKoala\GeoTools\Models\Country; |
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use LeKoala\GeoTools\Models\Coordinates; |
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use SilverStripe\i18n\i18n; |
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use SilverStripe\Core\Environment; |
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/** |
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* In mapbox, coordinates are reversed! (longitude, latitude) |
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* |
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* @link https://www.mapbox.com/api-playground |
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* @link https://github.com/mapbox/geocoding-example/tree/master/php |
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*/ |
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class MapBox implements Geocoder |
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{ |
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const API_URL = 'https://api.mapbox.com/geocoding/v5/{mode}/{query}.json'; |
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const MODE_PLACES = 'mapbox.places'; |
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const MODE_PLACES_PERMANENT = 'mapbox.places-permanent'; |
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/** |
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* @link https://www.mapbox.com/api-documentation/#geocoding |
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* @param string $query |
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* @param array<int|string,mixed> $params country, proximity, types, autocomplete, bbox, limit, language |
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* @return Address |
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* @throws Exception when there is a problem with the api, otherwise may return an empty address |
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*/ |
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protected function query($query, $params = []) |
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{ |
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$url = self::API_URL; |
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$url = str_replace('{mode}', self::MODE_PLACES, $url); |
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$url = str_replace('{query}', urlencode($query), $url); |
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$defaultParams = [ |
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// 'language' => $this->getLanguage(i18n::get_locale()), |
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'types' => 'address', |
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'limit' => 1, |
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'access_token' => Environment::getEnv('MAPBOX_API_KEY') |
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]; |
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$params = array_merge($defaultParams, $params); |
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$url .= '?' . http_build_query($params); |
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$result = file_get_contents($url); |
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if (!$result) { |
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throw new Exception("The api returned no result"); |
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} |
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$data = json_decode($result, true); |
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if (!$data) { |
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throw new Exception("Failed to decode api results"); |
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} |
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$location = null; |
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$countryCode = $countryName = null; |
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$lat = $lon = null; |
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if (!empty($data['features'])) { |
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$feature = $data['features'][0]; |
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$location = [ |
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// A string of the house number for the returned address feature |
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'streetNumber' => $feature['address'] ?? null, |
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'streetName' => $feature['text'], |
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]; |
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$lat = $feature['geometry']['coordinates'][1]; |
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$lon = $feature['geometry']['coordinates'][0]; |
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foreach ($feature['context'] as $context) { |
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$parts = explode('.', $context['id']); |
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$contextType = $parts[0]; |
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$contextId = $parts[1]; |
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if ($contextType == 'postcode') { |
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$location['postalCode'] = $context['text']; |
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} |
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if ($contextType == 'place') { |
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$location['locality'] = $context['text']; |
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} |
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if ($contextType == 'country') { |
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$countryCode = $context['short_code']; |
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$countryName = $context['text']; |
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} |
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} |
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} |
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$country = new Country($countryCode, $countryName); |
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$coordinates = new Coordinates($lat, $lon); |
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return new Address($location, $country, $coordinates); |
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} |
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/** |
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* @param string $locale |
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* @return string |
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*/ |
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protected function getLanguage($locale) |
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{ |
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$lang = substr($locale, 0, 2); |
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if (in_array($lang, self::listLanguages())) { |
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return $lang; |
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} |
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return 'en'; |
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} |
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/** |
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* @return array<string> |
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*/ |
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public static function listLanguages() |
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{ |
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return [ |
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'en', |
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'de', |
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'fr', |
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'it', |
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'nl', |
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]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function reverseGeocode($lat, $lon, $params = []) |
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{ |
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return $this->query("$lon,$lat", $params); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function geocode($address, $params = []) |
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{ |
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return $this->query($address, $params); |
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} |
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} |
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lekoala /
silverstripe-geotools
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