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debit_card_details.php
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<?php
session_start();
include 'db_user_connection.php';
if (!isset($_SESSION['username'])) {
header("Location: index.html"); // If not logged in, redirect to login page.
exit();
}
$current_username = $_SESSION['username']; // Currently logged-in username
// Handle POST request to freeze or unlock the card
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action'], $_POST['card_number'])) {
$action = $_POST['action'];
$card_number = $_POST['card_number'];
// Validate action
if (!in_array($action, ['freeze', 'unlock'])) {
$error_message = "Invalid action.";
} else {
// Check if the card belongs to the logged-in user
$stmt = $conn->prepare("
SELECT cards.id, cards.blocked
FROM cards
INNER JOIN users ON cards.cardholder_id = users.id
WHERE cards.card_number = ? AND users.username = ?
");
$stmt->bind_param("ss", $card_number, $current_username);
$stmt->execute();
$result = $stmt->get_result();
$card_data = $result->fetch_assoc();
$stmt->close();
if (!$card_data) {
$error_message = "Card not found or access denied.";
} else {
// Update card's blocked status
$new_blocked_status = ($action === 'freeze') ? 1 : 0;
$stmt = $conn->prepare("UPDATE cards SET blocked = ? WHERE card_number = ?");
$stmt->bind_param("is", $new_blocked_status, $card_number);
if ($stmt->execute()) {
$success_message = "Card status updated successfully.";
} else {
$error_message = "Failed to update card status.";
}
$stmt->close();
}
}
}
// Get the card number from the query string
$card_number = isset($_GET['card']) ? $_GET['card'] : null;
if (!$card_number) {
header("Location: 404.php"); // If no card number is provided, redirect to 404 page.
exit();
}
// Start timing
$start_time = microtime(true);
// Query to check if the debit card exists and belongs to the current user
$stmt = $conn->prepare("
SELECT debitcards.*, cards.card_number, cards.blocked, users.username
FROM debitcards
INNER JOIN cards ON debitcards.id = cards.id
INNER JOIN users ON cards.cardholder_id = users.id
WHERE cards.card_number = ? AND users.username = ?
");
$stmt->bind_param("ss", $card_number, $current_username);
$stmt->execute();
$result = $stmt->get_result();
// Fetch card details
$card_data = $result->fetch_assoc();
$stmt->close();
// If no card is found or it does not belong to the current user, redirect to 404
if (!$card_data) {
header("Location: 404.php");
exit();
}
// End timing
$end_time = microtime(true);
$execution_time = round(($end_time - $start_time) * 1000, 2); // Convert to milliseconds
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./css/dashboard.css" />
<link rel="icon" href="assets/logo.png" type="image/png">
<title>Debit Card Details | GBC Internet Banking</title>
</head>
<body>
<!-- Header -->
<header class="header">
<div class="header__content">
<div class="header__logo">
<a href="./dashboard.php"><img src="./assets/logo.png" alt="Bank Logo"></a>
</div>
<h1>Debit Card Details</h1>
<div class="header__right">
Current User: <?php echo htmlspecialchars($_SESSION['username']); ?>
<button class="logout-button" style="margin-left: 10px;" onclick="window.location.href='logout.php'">Logout</button>
</div>
</div>
</header>
<div class="container">
<h1>Debit Card Details</h1>
<div class="details">
<p><strong>Card Number:</strong> <?php echo htmlspecialchars($card_data['card_number']); ?></p>
<p><strong>Spending Limit:</strong> <?php echo number_format($card_data['spending_limit'] ?? 0, 2); ?> HKD</p>
<p><strong>Available Balance:</strong> <?php echo number_format($card_data['balance'], 2); ?> HKD</p>
<p><strong>Card Status:</strong> <?php echo $card_data['blocked'] == 0 ? 'Active' : 'Frozen'; ?></p>
</div>
<!-- Display messages -->
<?php if (isset($success_message)): ?>
<p style="color: green;"><?php echo $success_message; ?></p>
<?php elseif (isset($error_message)): ?>
<p style="color: red;"><?php echo $error_message; ?></p>
<?php endif; ?>
<div class="button-group">
<!-- Freeze button -->
<form method="POST" style="display: inline;">
<input type="hidden" name="card_number" value="<?php echo htmlspecialchars($card_data['card_number']); ?>">
<input type="hidden" name="action" value="freeze">
<button
class="freeze-button"
<?php echo $card_data['blocked'] == 1 ? 'disabled' : ''; ?>
onmouseover="handleMouseOver(this, <?php echo $card_data['blocked'] == 1 ? 'true' : 'false'; ?>)"
onmouseout="handleMouseOut(this)"
>
Freeze Card
</button>
</form>
<!-- Unlock button -->
<form method="POST" style="display: inline;">
<input type="hidden" name="card_number" value="<?php echo htmlspecialchars($card_data['card_number']); ?>">
<input type="hidden" name="action" value="unlock">
<button
class="unlock-button"
<?php echo $card_data['blocked'] == 0 ? 'disabled' : ''; ?>
onmouseover="handleMouseOver(this, <?php echo $card_data['blocked'] == 0 ? 'true' : 'false'; ?>)"
onmouseout="handleMouseOut(this)"
>
Unlock Card
</button>
</form>
</div>
<div style="text-align: center;">
<a href="./user_card_management.php" style="text-decoration: none; color: #007BFF;">Back to Card Management</a>
</div>
</div>
<footer class="footer">
<?php if ($execution_time): ?>
It took <?php echo $execution_time; ?> milliseconds to get data from the server.</p>
<?php endif; ?>
©2024 Global Banking Corporation Limited. All rights reserved.
</footer>
<script>
function handleCardAction(action) {
const cardNumber = "<?php echo htmlspecialchars($card_data['card_number']); ?>";
// Send the action directly to the server
fetch('card_action.php', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ card_number: cardNumber, action: action }),
})
.then(response => response.json())
.then(data => {
if (data.blocked !== undefined) {
alert(data.message); // Display server response
location.reload(); // Reload the page to reflect changes
} else {
alert('Failed to update card status. Please try again.');
}
})
.catch(error => {
console.error('Error:', error);
alert('An error occurred. Please try again.');
});
}
function handleMouseOver(button, isDisabled) {
if (isDisabled) {
button.classList.add('hover-disabled');
button.title = "This action is currently disabled";
}
}
function handleMouseOut(button) {
button.classList.remove('hover-disabled');
button.title = "";
}
</script>
<style>
.container {
max-width: 600px;
margin: 50px auto;
background-color: #fff;
padding: 20px;
border-radius: 8px;
box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}
.details {
margin: 20px 0;
}
.details p {
font-size: 16px;
margin-bottom: 10px;
}
.button-group {
text-align: center;
margin-top: 20px;
}
.button-group button {
padding: 10px 20px;
margin: 10px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
}
.freeze-button {
background-color: #FF4C4C;
color: white;
}
.freeze-button:hover {
background-color: #E53935;
}
.unlock-button {
background-color: #4CAF50;
color: white;
}
.unlock-button:hover {
background-color: #388E3C;
}
.freeze-button.hover-disabled,
.unlock-button.hover-disabled {
background-color: #cccccc !important;
cursor: not-allowed !important;
color: #666666 !important;
}
.freeze-button:hover:not(.hover-disabled) {
background-color: #E53935;
}
.unlock-button:hover:not(.hover-disabled) {
background-color: #388E3C;
}
</style>
</body>
</html>