Update codebase

backend/ride/invitor/get_unified_code.php

@@ -1,42 +1,19 @@
 <?php
 require_once __DIR__ . '/../../connect.php';
-
-function generateUnifiedCode($con) {
-    while (true) {
-        $letters = substr(str_shuffle("ABCDEFGHJKLMNPQRSTUVWXYZ"), 0, 2);
-        $numbers = substr(str_shuffle("23456789"), 0, 4);
-        $code = $letters . $numbers;
-
-        $stmt = $con->prepare("SELECT COUNT(*) FROM user_referral_codes WHERE referral_code = ?");
-        $stmt->execute([$code]);
-
-        if ($stmt->fetchColumn() == 0) {
-            return $code;
-        }
-    }
-}
+// ‏منطق التوليد انتقل إلى helper مشترك حتى تولّده نقاط القراءة أيضاً —
+// ‏هذه النقطة لم تكن مُستدعاة من أي شاشة، فبقي الكود بلا توليد.
+require_once __DIR__ . '/referral_code_helper.php';
 
 // Ensure the JWT values exist
 if (!$user_id || !in_array($role, ['driver', 'passenger'])) {
     jsonError("Invalid or missing user information in token");
 }
 
-$stmt = $con->prepare("SELECT referral_code FROM user_referral_codes WHERE user_id = ? AND user_type = ?");
-$stmt->execute([$user_id, $role]);
+$code = ensureReferralCode($con, (string) $user_id, (string) $role);
 
-if ($stmt->rowCount() > 0) {
-    $row = $stmt->fetch(PDO::FETCH_ASSOC);
-    printSuccess(["referral_code" => $row['referral_code']]);
-} else {
-    $newCode = generateUnifiedCode($con);
-    $insertStmt = $con->prepare("INSERT INTO user_referral_codes (user_id, user_type, referral_code) VALUES (?, ?, ?)");
-    
-    try {
-        $insertStmt->execute([$user_id, $role, $newCode]);
-        printSuccess(["referral_code" => $newCode]);
-    } catch (PDOException $e) {
-        error_log("[get_unified_code.php] " . $e->getMessage());
-        jsonError("An internal error occurred. Please try again later.");
-    }
+if ($code === null) {
+    jsonError("An internal error occurred. Please try again later.");
 }
-?>
+
+printSuccess(["referral_code" => $code]);
+