Added some basic task runner functionality using beanstalkd and the pheanstalk library

src/Controllers/HomeController.php

@@ -2,6 +2,7 @@
 
 namespace BitGoblin\MCST\Controllers;
 
+use Pheanstalk\Pheanstalk;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
 use Slim\Views\Twig;
@@ -21,6 +22,12 @@ class HomeController extends Controller {
       array_push($minecraftServers, new Server($m));
     }
 
+    // create pheanstalk object and create a job
+    $pheanstalk = Pheanstalk::create($config->get('beanstalkd.host'), $config->get('beanstalkd.port'));
+    $pheanstalk
+      ->useTube('mcst')
+      ->put("refresh-server-downloads", Pheanstalk::DEFAULT_PRIORITY);
+
     $view = Twig::fromRequest($request);
     return $view->render($response, 'index.twig', [
       'servers' => $minecraftServers,

src/Runners/RefreshServerDownloads.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace BitGoblin\MCST\Runners;
+
+class RefreshServerDownloads {
+
+  protected $config;
+
+  public function __construct($config) {
+    $this->config = $config;
+  }
+
+  public function start() {
+    echo "Refreshing server download URLs...\n";
+  }
+
+}

src/runner.php

@@ -0,0 +1,45 @@
+<?php
+
+use Noodlehaus\Config;
+use Noodlehaus\Parser\Json;
+use Pheanstalk\Pheanstalk;
+
+use BitGoblin\MCST\Runners\RefreshServerDownloads;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+// Load app configuration
+$config = Config::load(__DIR__ . '/../conf/defaults.json');
+
+// create pheanstalk object
+$pheanstalk = Pheanstalk::create($config->get('beanstalkd.host'), $config->get('beanstalkd.port'));
+// we want jobs from 'mcst' tube only.
+$pheanstalk->watch('mcst');
+
+while (true) {
+  echo "Waiting for a new job...\n";
+
+  // try to reserve a job
+  $job = $pheanstalk->reserve();
+
+  // check if we actually got a job before trying to do work
+  if (isset($job)) {
+    $jobPayload = $job->getData();
+    
+    switch ($jobPayload) {
+      case 'refresh-server-downloads':
+        $rsd = new RefreshServerDownloads($config);
+        $rsd->start();
+        break;
+      
+      default:
+        echo "Runner command " . $jobPayload . " isn't supported.\n";
+        break;
+    }
+
+    // remove job
+    $pheanstalk->delete($job);
+  }
+
+  sleep(60);
+}