added superexpert mode

application/User/User.php

@@ -144,6 +144,62 @@ class User extends mfBaseModel {
     return true;
   }
   
+  public function superexpertStart($duration = 1800) {
+    if(!$this->can("Superexpert")) return false;
+    
+    $ts = $this->getFlag("superexpert_lock_date");
+    $ts->value(date("U") + $duration);
+    $ts->save();
+    
+    return true;
+  }
+  
+  public function superexpertStop($duration = 1800) {
+    if(!$this->can("Superexpert")) return false;
+    
+    $ts = $this->getFlag("superexpert_lock_date");
+    $ts->value(0);
+    $ts->save();
+    
+    return true;
+  }
+  
+  public function superexpertExtend($duration = 1800) {
+    if(!$this->can("Superexpert")) return false;
+    
+    $ts = $this->getFlag("superexpert_lock_date");
+    $ts->value(date("U") + $duration);
+    $ts->save();
+    
+    return true;
+  }
+  
+  public function superexpertEnabled() {
+    if(!$this->can("Superexpert")) return false;
+    
+    $tsFlag = $this->getFlag("superexpert_lock_date");
+    $ts = $tsFlag->value();
+    
+    if(!is_numeric($ts) || !$ts) {
+      return false;
+    }
+    
+    $now = date("U");
+    
+    // if superexpert is longer than 60 minutes -> disable
+    if($ts > $now + 3601) {
+      $tsFlag->value(null);
+      $tsFlag->save();
+      return false;
+    }
+    
+    if($ts > $now) {
+      return true;
+    }
+    
+    return false;
+  }
+  
   public function getFlag($name) {
     return new WorkerFlag($this->id, $name);
   }