improved reindexing to reindex in background

new button to cleanup gravity

api/src/handlers/Settings.php

@@ -1,5 +1,6 @@
 <?php
 require_once 'RequestBase.php';
+require_once __DIR__ . '/../VideoParser.php';
 
 /**
  * Class Settings
@@ -9,6 +10,7 @@ class Settings extends RequestBase {
     function initHandlers() {
         $this->getFromDB();
         $this->saveToDB();
+        $this->reIndexHandling();
     }
 
     /**
@@ -102,4 +104,57 @@ class Settings extends RequestBase {
             }
         });
     }
+
+    /**
+     * methods for handling reindexing and cleanup of db gravity
+     */
+    private function reIndexHandling() {
+        $this->addActionHandler("startReindex", function () {
+            $indexrunning = false;
+            if (file_exists("/tmp/output.log")) {
+
+                $out = file_get_contents("/tmp/output.log");
+                if (substr($out, -strlen("-42")) == "-42") {
+                    unlink("/tmp/output.log");
+                } else {
+                    $indexrunning = true;
+                }
+            }
+
+            if (!$indexrunning) {
+                // start extraction of video previews in background
+
+                $cmd = 'php extractvideopreviews.php';
+                exec(sprintf("%s > %s 2>&1 & echo $! >> %s", $cmd, '/dev/zero', '/tmp/openmediacenterpid'));
+
+                $this->commitMessage('{"success": true}');
+            } else {
+                $this->commitMessage('{"success": false}');
+            }
+        });
+
+        $this->addActionHandler("cleanupGravity", function () {
+            $vp = new VideoParser();
+            $vp->cleanUpGravity();
+        });
+
+        $this->addActionHandler("getStatusMessage", function () {
+            $return = new stdClass();
+            if (file_exists("/tmp/output.log")) {
+                $out = file_get_contents("/tmp/output.log");
+                // clear log file
+                file_put_contents("/tmp/output.log", "");
+                $return->message = $out;
+                $return->contentAvailable = true;
+
+                if (substr($out, -strlen("-42")) == "-42") {
+                    unlink("/tmp/output.log");
+                }
+            } else {
+                $return->contentAvailable = false;
+            }
+
+            $this->commitMessage(json_encode($return));
+        });
+    }
 }