254 lines
8.6 KiB
PHP
254 lines
8.6 KiB
PHP
<?php
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namespace App\Http\Controllers;
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use DateTime;
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use App\Mail\WeeklyDigest;
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use GuzzleHttp\Client;
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use GuzzleHttp\Exception\ConnectException;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\Log;
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use Illuminate\Support\Facades\Mail;
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use Illuminate\Support\Facades\Storage;
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class TrackerController extends Controller
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{
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/**
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* Show the list of past trips.
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* TODO: Get these from the Wayward API rather than hard-coding them.
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*
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* @return \Illuminate\View\View
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*/
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public function show_past_trips_list()
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{
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return view('past-trips');
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}
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/**
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* Show a trip in tracker app.
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*
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* @param Request $request
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* @param string? $tripId
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* @return \Illuminate\View\View
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*/
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public function show_trip(Request $request, string $tripId = null)
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{
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$tripId = $tripId ?? config('app.current_trip_id');
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if (!$tripId) {
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return view('no-trip');
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}
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$viewMode = $request->input('show', null);
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$fromCheckin = $request->input('from', null);
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$toCheckin = $request->input('to', null);
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$forceDownload = $request->input('force', false);
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$cherryPickedCheckins = $request->input('cherrypick', null);
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try {
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$tripData = $this->get_trip_data($tripId, $forceDownload);
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} catch (ConnectException) {
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return view(
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'error',
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[
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'message' => "App timed out whilst downloading trip data" .
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" from Wayward's servers. They may be down currently."
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]
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);
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}
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if ($fromCheckin) {
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$tripData->checkins = array_filter(
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$tripData->checkins,
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function ($checkin) use ($fromCheckin) {
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return $checkin->id >= $fromCheckin;
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}
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);
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}
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if ($toCheckin) {
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$tripData->checkins = array_filter(
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$tripData->checkins,
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function ($checkin) use ($toCheckin) {
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return $checkin->id <= $toCheckin;
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}
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);
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}
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if ($cherryPickedCheckins) {
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$explodedCherryPickedCheckins = explode(',', $cherryPickedCheckins);
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$tripData->checkins = array_filter(
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$tripData->checkins,
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function ($checkin) use ($explodedCherryPickedCheckins) {
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return in_array($checkin->id, $explodedCherryPickedCheckins);
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}
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);
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}
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return view(
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'tracker',
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[
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'trip' => $tripData,
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'showAllCheckins' => ($viewMode === 'all'),
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'fromCheckin' => $fromCheckin,
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'toCheckin' => $toCheckin
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]
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);
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}
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/**
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* Retrieves a trip from the local cache, or from the Wayward API.
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*
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* The retrieval algorithm is as follows:
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* 1. If no local cache exists, download the trip data
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* 2. If a local cache exists:
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* 1. If the trip is inactive (i.e., finished), use the cache
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* 2. If the trip is active:
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* 1. If the trip was actively tracking at last check, use the
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* cache if it's less than an hour old. Otherwise, download
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* the new trip data.
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* 2. If the trip was not actively tracking at lest check, use
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* the cache if it's less than three hours old. Otherwise,
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* download the new trip data.
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* 3. If new trip data is downloaded, overwrite any cached data.
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*
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* @param string $tripId
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* @param bool $forceDownload
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* @return string
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*/
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public function get_trip_data(string $tripId, bool $forceDownload = false)
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{
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$tripFileName = ( $tripId ?? config('app.current_trip_id') ) . '.json';
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// Returns the cached trip data if the trip is inactive (i.e., finished)
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// or less than 1–3 hours old, depending on whether it was tracking
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// at last check or not.
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if (!$forceDownload && Storage::disk('local')->exists($tripFileName)) {
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Log::debug("Cached trip file '{$tripFileName}' found...");
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$cachedData = json_decode(Storage::disk('local')->get($tripFileName))->trip;
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if ($cachedData->is_active) {
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Log::debug("Cached trip file '{$tripFileName}' is for an active trip.");
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$cachedDataUpdatedAt = new DateTime($cachedData->updated_at);
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$now = new DateTime();
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$cachingTimeout = ($cachedData->is_tracking) ? 1 : 3;
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$cachedDataAge = intval(($now->getTimestamp() - $cachedDataUpdatedAt->getTimestamp()) / 3600);
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if ($cachedDataAge <= $cachingTimeout) {
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Log::debug(
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"Cached trip file '" .
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$tripFileName .
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"' is younger than " .
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$cachingTimeout .
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" hours, showing from cache..."
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);
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return $cachedData;
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}
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} else {
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Log::debug(
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"Cached trip file '" .
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$tripFileName .
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"' is for an old trip, showing from cache..."
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);
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return $cachedData;
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}
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}
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// Otherwise, download the trip data from the Wayward API.
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if ($forceDownload) {
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Log::debug("Forcing download for '{$tripFileName}'.");
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Storage::disk('local')->delete($tripFileName);
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} else {
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Log::debug("No cached trip file found for '{$tripFileName}'.");
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}
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$client = new Client([
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'base_uri' => 'https://app.wayward.travel/',
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'timeout' => 20.0
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]);
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$response = $client->get('trip/'.($tripId ?? config('app.current_trip_id')).'/user/zmld8ko6qy7d9j3xvq10/json');
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switch ($response->getStatusCode()) {
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case 200:
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$data = json_decode($response->getBody());
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$data->trip->locations = $this->decode_polyline($data->trip->route);
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// Cache the downloaded file if it does not exist locally.
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if (Storage::disk('local')->missing($tripFileName)) {
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Log::debug("Caching new trip file '{$tripFileName}'.");
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Storage::disk('local')->put($tripFileName, json_encode($data));
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} else {
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$cachedData = json_decode(Storage::disk('local')->get($tripFileName));
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if (end($data->trip->checkins)->date !== end($cachedData->trip->checkins)->date) {
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Log::debug(
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"Cached trip file '" .
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$tripFileName .
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"' has different 'updated_at' time, updating cache..."
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);
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Storage::disk('local')->put($tripFileName, json_encode($data));
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// TODO: Cache photos locally
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} else {
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Log::debug(
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"Cached trip file '" .
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$tripFileName .
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"' has same 'updated_at' time, showing from cache..."
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);
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$data = $cachedData;
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}
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}
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return $data->trip;
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default:
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}
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}
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/*
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* Decode route polyline.
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*
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* Source: https://github.com/dyaaj/polyline-encoder
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*
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* @param object $value
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* @return object
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*/
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public function decode_polyline($value)
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{
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$index = 0;
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$points = array();
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$lat = 0;
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$lng = 0;
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$id = 0;
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while ($index < strlen($value)) {
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$b;
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$shift = 0;
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$result = 0;
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do {
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$b = ord(substr($value, $index++, 1)) - 63;
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$result |= ($b & 0x1f) << $shift;
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$shift += 5;
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} while ($b > 31);
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$dlat = (($result & 1) ? ~($result >> 1) : ($result >> 1));
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$lat += $dlat;
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$shift = 0;
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$result = 0;
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do {
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$b = ord(substr($value, $index++, 1)) - 63;
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$result |= ($b & 0x1f) << $shift;
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$shift += 5;
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} while ($b > 31);
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$dlng = (($result & 1) ? ~($result >> 1) : ($result >> 1));
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$lng += $dlng;
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array_push($points, (object)[
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'id' => $id++,
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'latitude' => $lat/100000,
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'longitude' => $lng/100000
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]);
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}
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return $points;
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}
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}
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