Update config.php

config.php

@@ -1,62 +1,65 @@
 <?php
+// ====================================================================
+// 1. ENVIRONMENT CONFIGURATION & GLOBAL SETTINGS
+// ====================================================================
+// Set time zone and ensure clean error reporting for debugging development builds
+date_default_timezone_set('UTC');
+error_reporting(E_ALL);
+ini_set('display_errors', 0); // Keep disabled in production so errors don't corrupt JSON payloads
+
+// ====================================================================
+// 2. DATABASE CONFIGURATION (Aiven Cloud Connection Matrix)
+// ====================================================================
+// Fall back to standard local development values if variables aren't injected by Vercel
+$db_host = getenv('DB_HOST') ?: 'nostolgagram-nostolgagram.i.aivencloud.com';
+$db_port = getenv('DB_PORT') ?: '3306'; // Default MySQL port (Aiven will overwrite this with 23006 via Vercel)
+$db_user = getenv('DB_USER') ?: 'avnadmin';
+$db_pass = getenv('DB_PASS') ?: '';
+$db_name = 'defaultdb'; // Aiven's default workspace name
+
+try {
+    // Open a secure database link using the fast, modern PHP Data Objects (PDO) framework
+    $pdo = new PDO(
+        "mysql:host=$db_host;port=$db_port;dbname=$db_name;charset=utf8mb4", 
+        $db_user, 
+        $db_pass, 
+        [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES   => false,
+        ]
+    );
+} catch (PDOException $e) {
+    // If the database connection drops, immediately return a clean JSON error response 
+    // so the patched Instagram 6.20.2 client app doesn't crash or hang.
+    header('Content-Type: application/json');
+    http_response_code(500);
+    echo json_encode([
+        "error" => "Secure cloud database connection error.",
+        "status" => "fail"
+    ]);
+    exit();
+}
+
+// ====================================================================
+// 3. MEDIA UPLOAD & STORAGE CONFIGURATION (Cloudinary)
+// ====================================================================
+// Pull your raw cloudinary:// URL string directly from Vercel's Environment Variables
+$cloudinary_env = getenv('CLOUDINARY_URL') ?: 'cloudinary://LOCAL_MOCK_KEY_FOR_TESTING';
+
+// Define it as a global constant so your existing media/upload scripts run unchanged
+define('CLOUDINARY_URL', $cloudinary_env);
+
+
+// ====================================================================
+// 4. API UTILITY FUNCTIONS (Optional helper block for your endpoints)
+// ====================================================================
 /**
- * NostolgaGram Configuration Hub v1.0
- * Architecture: InfinityFree Core Matrix + Cloudinary CDN Processing
+ * Standardized function to echo clean JSON responses back to the Instagram app
  */
-
-// 1. Universal Security and Client Handshake Headers
-// Crucial for allowing old Android clients to connect without CORS errors
-header('Content-Type: application/json; charset=utf-8');
-header("Access-Control-Allow-Origin: *");
-header("Access-Control-Allow-Methods: GET, POST, OPTIONS, DELETE");
-header("Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With");
-
-// Handle preflight OPTIONS requests instantly before they reach feature files
-if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
-    http_response_code(200);
-    exit;
-}
-
-// 2. Database Connectivity Profiles
-// Swap these placeholders with your actual keys from your InfinityFree Client Area
-define('DB_HOST', 'sql112.infinityfree.com'); 
-define('DB_USER', 'if0_42261255');            
-define('DB_PASS', '8d1WbfEonq'); 
-define('DB_NAME', 'if0_42261255_nostolgagram');  
-
-// 3. Cloudinary Edge CDN Credentials
-// Swap with your actual cloud account name. The preset matches your unsigned configuration.
-define('CLOUDINARY_CLOUD_NAME', 'dnkm8pijh'); 
-define('CLOUDINARY_UPLOAD_PRESET', 'nostolgagram'); 
-
-// 4. Global Managed Database Connection Gateway (PDO)
-// This function can be safely executed by any file in your directory tree.
-function getDB() {
-    static $dbInstance = null;
-    
-    // Reuse existing connection if already established during the request lifecycle
-    if ($dbInstance !== null) {
-        return $dbInstance;
-    }
-    
-    try {
-        $dbInstance = new PDO(
-            "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4", 
-            DB_USER, 
-            DB_PASS, 
-            [
-                PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
-                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
-                PDO::ATTR_EMULATE_PREPARES   => false,
-            ]
-        );
-        return $dbInstance;
-    } catch (PDOException $e) {
-        // Return structured JSON instead of raw PHP syntax blocks if the database drops
-        http_response_code(500);
-        die(json_encode([
-            "status" => "fail", 
-            "message" => "Database node offline."
-        ]));
-    }
+function sendJsonResponse($data, $status_code = 200) {
+    header('Content-Type: application/json');
+    http_response_code($status_code);
+    echo json_encode($data);
+    exit();
 }