Merge branch '1286-add-key-related-anonymous-statistics' into 'development'

Resolve "Add Key related (anonymous) statistics"

Closes #1286

See merge request !2143

metager/app/Models/Authorization/KeyAuthorization.php

@@ -2,6 +2,7 @@
 
 namespace App\Models\Authorization;
 
+use App\PrometheusExporter;
 use Illuminate\Support\Facades\Redis;
 
 class KeyAuthorization extends Authorization
@@ -87,6 +88,10 @@ class KeyAuthorization extends Authorization
         $mission = json_encode($mission);
         Redis::rpush(\App\MetaGer::FETCHQUEUE_KEY, $mission);
 
+        if (config('metager.metager.keys.uni_mainz') === $this->key) {
+            PrometheusExporter::UpdateMainzKeyStatus($this->availableTokens);
+        }
+
         return true;
     }
     /**

metager/app/Models/Searchengine.php

@@ -6,6 +6,7 @@ use App\Localization;
 use App\MetaGer;
 use App\Models\Authorization\Authorization;
 use app\Models\parserSkripte\Overture;
+use App\PrometheusExporter;
 use App\SearchSettings;
 use Illuminate\Support\Facades\Redis;
 use LaravelLocalization;
@@ -199,8 +200,12 @@ abstract class Searchengine
             }
             $this->getNext($metager, $body);
             // Pay for the searchengine if cost > 0 and returned results
-            if (!$this->cached && $this->configuration->cost > 0 && sizeof($this->results) > 0) {
-                app(Authorization::class)->makePayment($this->configuration->cost);
+            if ($this->configuration->cost > 0 && sizeof($this->results) > 0) {
+                // Remove namespace before passing engine to exporter
+                PrometheusExporter::KeyUsed(preg_replace("/^.*\\\/", "", get_class($this)), $this->cached);
+                if (!$this->cached) {
+                    app(Authorization::class)->makePayment($this->configuration->cost);
+                }
             }
             $this->markNew();
             $this->loaded = true;

metager/app/PrometheusExporter.php

@@ -66,4 +66,17 @@ class PrometheusExporter
         $counter = $registry->getOrRegisterCounter("metager", "overture_failed", "counts how often overture failed a response");
         $counter->inc();
     }
+
+    public static function KeyUsed(string $engine, bool $cached)
+    {
+        $registry = CollectorRegistry::getDefault();
+        $counter = $registry->getOrRegisterCounter("metager", "key_used", "Counts MetaGer Key Usage", ["searchengine", "cached"]);
+        $counter->inc([$engine, json_encode($cached)]);
+    }
+    public static function UpdateMainzKeyStatus($tokens)
+    {
+        $registry = CollectorRegistry::getDefault();
+        $gauge = $registry->getOrRegisterGauge("metager", "key", "Tracks status of the Mainz Key", ["owner"]);
+        $gauge->set($tokens, ["mainz"]);
+    }
 }
\ No newline at end of file