input('show', null); $fromCheckin = $request->input('from', null); $toCheckin = $request->input('to', null); $tripData = $this->get_trip_data($tripId); if ($fromCheckin) { $tripData->checkins = array_filter($tripData->checkins, function($key) use ($fromCheckin) { return $key >= $fromCheckin; }, ARRAY_FILTER_USE_KEY); } if ($toCheckin) { $tripData->checkins = array_filter($tripData->checkins, function($key) use ($toCheckin) { return $key <= $toCheckin; }, ARRAY_FILTER_USE_KEY); } return view( 'tracker', [ 'trip' => $tripData, 'showAllCheckins' => ($viewMode === 'all'), 'fromCheckin' => $fromCheckin, 'toCheckin' => $toCheckin ] ); } /** * Retrieves a trip from the local cache, or from the Wayward API. * * The retrieval algorithm is as follows: * 1. If no local cache exists, download the trip data * 2. If a local cache exists: * 1. If the trip is inactive (i.e., finished), use the cache * 2. If the trip is active: * 1. If the trip was actively tracking at last check, use the * cache if it's less than an hour old. Otherwise, download * the new trip data. * 2. If the trip was not actively tracking at lest check, use * the cache if it's less than three hours old. Otherwise, * download the new trip data. * 3. If new trip data is downloaded, overwrite any cached data. * * @param string $tripId * @return string */ public function get_trip_data(string $tripId) { $tripFileName = ( $tripId ?? config('app.current_trip_id') ) . '.json'; // Returns the cached trip data if the trip is inactive (i.e., finished) // or less than 1–3 hours old, depending on whether it was tracking // at last check or not. if (Storage::disk('local')->exists($tripFileName)) { Log::debug("Cached trip file '{$tripFileName}' found..."); $cachedData = json_decode(Storage::disk('local')->get($tripFileName))->trip; if ($cachedData->is_active) { Log::debug("Cached trip file '{$tripFileName}' is for an active trip."); $cachedDataUpdatedAt = new DateTime($cachedData->updated_at); $now = new DateTime(); $cachingTimeout = ($cachedData->is_tracking) ? 1 : 3; $cachedDataAge = intval(($now->getTimestamp() - $cachedDataUpdatedAt->getTimestamp()) / 3600); if ($cachedDataAge <= $cachingTimeout) { Log::debug("Cached trip file '{$tripFileName}' is younger than {$cachingTimeout} hours, showing from cache..."); return $cachedData; } } else { Log::debug("Cached trip file '{$tripFileName}' is for an old trip, showing from cache..."); return $cachedData; } } // Otherwise, download the trip data from the Wayward API. Log::debug("No cached trip file found for '{$tripFileName}'."); $client = new Client([ 'base_uri' => 'https://app.wayward.travel/', 'timeout' => 3.0 ]); $response = $client->get('trip/'.($tripId ?? config('app.current_trip_id')).'/user/zmld8ko6qy7d9j3xvq10/json'); switch ($response->getStatusCode()) { case 200: $data = json_decode($response->getBody()); // Cache the downloaded file if it does not exist locally. if (Storage::disk('local')->missing($tripFileName)) { Log::debug("Caching new trip file '{$tripFileName}'."); Storage::disk('local')->put($tripFileName, json_encode($data)); } else { $cachedData = json_decode(Storage::disk('local')->get($tripFileName)); if ($data->trip->updated_at !== $cachedData->trip->updated_at) { Log::debug("Cached trip file '{$tripFileName}' has different 'updated_at' time, updating cache..."); Storage::disk('local')->put($tripFileName, json_encode($data)); // TODO: Cache photos locally } else { Log::debug("Cached trip file '{$tripFileName}' has same 'updated_at' time, showing from cache..."); $data = $cachedData; } } return $data->trip; default: // TODO: Add proper error handling. return "Something went wrong"; } } }