Sort of working beta

app/Services/BrowserJobsInstances.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace App\Services;
+
+use App\Browser\BrowserJob;
+use Cache;
+use Exception;
+
+class BrowserJobsInstances {
+
+    /**
+     * A dictionnary of all job instances by their jobId
+     * @var array Dictionnary of BrowserJob by their jobId
+     */
+    private $jobInstancesByJobId = [];
+
+    /**
+     * Index all jobs in the app/Browser/Jobs directory
+     * and store them in the cache
+     * @return void
+     */
+    private function indexJobsClassesById(): void
+    {
+        // Read all directories in app/Browser/jobs,
+        // foreach directory, get the file named {directoryName}Job.php if it exists
+        $folders = scandir(app_path('Browser/Jobs'));
+        $files = [];
+        foreach ($folders as $folder) {
+            if ($folder == '.' || $folder == '..') {
+                continue;
+            }
+            if (is_dir(app_path('Browser/Jobs/' . $folder))) {
+                $potentialFileName = $folder . '/' . $folder . 'Job.php';
+                if (file_exists(app_path('Browser/Jobs/' . $potentialFileName))) {
+                    $files[] = $potentialFileName;
+                }
+            }
+        }
+
+        // Make a dictionnary of the id of the job as the key and the job class instance as value
+        foreach ($files as $file) {
+            $className = str_replace('.php', '', $file);
+            $className = str_replace('/', '\\', $className);
+            $fullClassName = 'App\Browser\Jobs\\' . $className;
+            $jobInstance = new $fullClassName();
+            $jobId = $jobInstance->jobId;
+            Cache::put('jobClass' . $jobId, $fullClassName); // Met le nom de la classe en cache
+            $this->jobInstancesByJobId[$jobId] = $jobInstance;
+        }
+    }
+
+    /**
+     * Get an instance of a job by it's jobId
+     * @param mixed $jobId The ID of the job in the database
+     * @return BrowserJob
+     */
+    public function getJobInstance($jobId): BrowserJob
+    {
+        try {
+            return $this->jobInstancesByJobId[$jobId];
+        } catch (Exception $e) {
+            return $this->getNewJobInstance($jobId);
+        }
+    }
+
+    /**
+     * Create a new instance of a job class
+     * @param int $jobId
+     * @return object
+     */
+    private function getNewJobInstance(int $jobId): BrowserJob {
+        $jobClass = Cache::get('jobClass' . $jobId);
+        if ($jobClass == null) { // If we don't have the class in cache, we put all of the job in cache
+            $this->indexJobsClassesById();
+            return $this->jobInstancesByJobId[$jobId]; // indexJobsClassesById() already created an instance of the job
+        }
+        // If we have the class in cache, we create a new instance of it
+        $instance = new $jobClass();
+        $this->jobInstancesByJobId[$jobId] = $instance;
+        return $instance;
+    }
+
+    /**
+     * Terminate all jobs
+     * @return void
+     */
+    public function terminateAll() {
+        foreach ($this->jobInstancesByJobId as $jobInstance) {
+            $jobInstance->terminate();
+        }
+    }
+}