<?php
require_once 'includes/db_connect.php';
// In a real scenario, you would get paymentID and status from $_GET parameters
// $paymentID = $_GET['paymentID'];
// $status = $_GET['status'];

// Since we are simulating, we are coming from bKash_payment.php
if (!isset($_SESSION['user_id']) || !isset($_GET['amount'])) { die("Invalid access."); }
$amount = (float)$_GET['amount'];
$user_id = $_SESSION['user_id'];

// In a real scenario, you would call the execute payment API here to verify.
// For simulation, we assume it's successful.
$is_successful = true;

if ($is_successful) {
    $conn->begin_transaction();
    try {
        $conn->query("UPDATE users SET balance = balance + $amount WHERE id = $user_id");
        $desc = "Auto balance added via bKash Gateway";
        $conn->query("INSERT INTO transactions (user_id, type, amount, description) VALUES ($user_id, 'Add Balance', $amount, '$desc')");
        $conn->commit();
        header("Location: payment_success.php?amount=" . $amount);
        exit;
    } catch (Exception $e) { $conn->rollback(); die("ব্যালেন্স আপডেট করতে সমস্যা হয়েছে।"); }
} else {
    die("বিকাশ থেকে পেমেন্ট সফল হয়নি।");
}
?>