#add git monitor

app/Services/DingTalkService.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Services;
+
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class DingTalkService
+{
+    private ?string $webhook;
+    private ?string $secret;
+
+    public function __construct()
+    {
+        $config = config('services.dingtalk', []);
+        $this->webhook = $config['webhook'] ?? null;
+        $this->secret = $config['secret'] ?? null;
+    }
+
+    public function sendText(string $message, array $atMobiles = [], bool $atAll = false): void
+    {
+        if (empty($this->webhook)) {
+            Log::warning('DingTalk webhook is not configured, skip sending alert.');
+            return;
+        }
+
+        $payload = [
+            'msgtype' => 'text',
+            'text' => [
+                'content' => $message,
+            ],
+            'at' => [
+                'atMobiles' => $atMobiles,
+                'isAtAll' => $atAll,
+            ],
+        ];
+
+        $url = $this->webhook;
+        if (!empty($this->secret)) {
+            $timestamp = (int) round(microtime(true) * 1000);
+            $stringToSign = $timestamp . "\n" . $this->secret;
+            $sign = base64_encode(hash_hmac('sha256', $stringToSign, $this->secret, true));
+            $encodedSign = urlencode($sign);
+            $separator = str_contains($url, '?') ? '&' : '?';
+            $url .= "{$separator}timestamp={$timestamp}&sign={$encodedSign}";
+        }
+
+        try {
+            Http::timeout(10)->asJson()->post($url, $payload);
+        } catch (\Throwable $e) {
+            Log::error('Failed to send DingTalk alert', [
+                'message' => $e->getMessage(),
+            ]);
+        }
+    }
+}