feat: start of InfluxDB implementation

src/Service/InfluxdbService.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Service;
+
+use App\Entity\Domain;
+use App\Entity\RdapServer;
+use InfluxDB2\Client;
+use InfluxDB2\Model\WritePrecision;
+use InfluxDB2\Point;
+use InfluxDB2\WriteType;
+
+readonly class InfluxdbService
+{
+    private Client $client;
+
+    public function __construct(
+        private string $influxdbUrl = 'http://influxdb:8086',
+        private string $influxdbToken = '',
+        private string $influxdbBucket = 'domainwatchdog',
+        private string $influxdbOrg = 'domainwatchdog',
+    ) {
+        $this->client = new Client([
+            'url' => $this->influxdbUrl,
+            'token' => $this->influxdbToken,
+            'bucket' => $this->influxdbBucket,
+            'org' => $this->influxdbOrg,
+            'precision' => WritePrecision::MS,
+        ]);
+    }
+
+    public function addRdapRequest(RdapServer $rdapServer, Domain $domain, bool $success): void
+    {
+        $this->writePoints(new Point('rdap_request', [
+            'domain' => $domain->getLdhName(),
+            'tld' => $domain->getTld()->getTld(),
+            'rdap_server' => $rdapServer->getUrl(),
+        ], [
+            'success' => $success,
+        ]));
+    }
+
+    public function writePoints(Point ...$points): void
+    {
+        $writeApi = $this->client->createWriteApi(['writeType' => WriteType::BATCHING, 'batchSize' => count($points)]);
+        foreach ($points as $point) {
+            $writeApi->write($point);
+        }
+
+        $writeApi->close();
+    }
+}