Deploy: 2026-05-25 00:29:42

backend/app/Services/MetaService.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Services;
+
+/**
+ * Meta Service
+ * Wraps communication with Facebook Graph API for Messenger and Instagram Business.
+ */
+class MetaService
+{
+    /**
+     * Send a text message response to Meta Graph API
+     */
+    public static function sendMessage(string $pageAccessToken, string $recipientPsid, string $messageText): bool
+    {
+        $url = "https://graph.facebook.com/v20.0/me/messages?access_token=" . urlencode($pageAccessToken);
+
+        $payload = json_encode([
+            'recipient' => ['id' => $recipientPsid],
+            'messaging_type' => 'RESPONSE',
+            'message' => ['text' => $messageText]
+        ]);
+
+        $ch = curl_init($url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, [
+            'Content-Type: application/json'
+        ]);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
+
+        $response = curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($httpCode !== 200) {
+            error_log("[MetaService Error] Failed to send message. HTTP Code: " . $httpCode . ", Response: " . $response);
+            return false;
+        }
+
+        return true;
+    }
+}