feuerwehr-vereinsshop/checkout.php

<?php
require_once __DIR__ . '/config.php';
require_once __DIR__ . '/includes/functions.php';

$pageTitle = 'Reservierung';

$cart = $_SESSION['cart'] ?? [];
if (empty($cart)) {
    header('Location: cart.php');
    exit;
}

// Validate cart items and stock
$cartItems = [];
$regularItems = [];
$backorderItems = [];
$errors = [];
$total = 0;
$regularTotal = 0;
$backorderTotal = 0;

foreach ($cart as $item) {
    $product = getProductById($item['product_id']);
    if (!$product) {
        $errors[] = 'Ein Produkt wurde nicht gefunden.';
        continue;
    }
    
    $size = isset($item['size']) ? $item['size'] : null;
    $itemTotal = $product['price'] * $item['quantity'];
    $total += $itemTotal;
    $isInStock = checkStock($item['product_id'], $item['quantity'], $size);
    if ($isInStock) {
        $regularTotal += $itemTotal;
    } else {
        $backorderTotal += $itemTotal;
    }
    $cartItems[] = [
        'product' => $product,
        'quantity' => $item['quantity'],
        'total' => $itemTotal,
        'size' => isset($item['size']) ? $item['size'] : null,
        'in_stock' => $isInStock
    ];
}

// Handle form submission
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['create_reservation'])) {
    $customerName = sanitize($_POST['customer_name'] ?? '');
    $customerEmail = sanitize($_POST['customer_email'] ?? '');
    
    if (empty($customerName)) {
        $errors[] = 'Bitte geben Sie Ihren Namen ein.';
    }
    
    if (empty($customerEmail) || !filter_var($customerEmail, FILTER_VALIDATE_EMAIL)) {
        $errors[] = 'Bitte geben Sie eine gültige E-Mail-Adresse ein.';
    }
    
    if (empty($errors)) {
        // Create reservation
        $regularItems = [];
        $backorderItems = [];
        foreach ($cart as $cartItem) {
            $item = [
                'product_id' => $cartItem['product_id'],
                'quantity' => $cartItem['quantity']
            ];
            if (isset($cartItem['size']) && !empty($cartItem['size'])) {
                $item['size'] = $cartItem['size'];
            }
            
            $size = isset($cartItem['size']) ? $cartItem['size'] : null;
            if (checkStock($cartItem['product_id'], $cartItem['quantity'], $size)) {
                $regularItems[] = $item;
            } else {
                $backorderItems[] = $item;
            }
        }
        
        $regularResult = null;
        $backorderResult = null;
        
        if (!empty($regularItems)) {
            $regularResult = createReservation($customerName, $customerEmail, $regularItems);
            if (!$regularResult['success']) {
                $errors[] = $regularResult['message'];
            }
        }
        
        if (empty($errors) && !empty($backorderItems)) {
            $backorderResult = createBackorderReservation($customerName, $customerEmail, $backorderItems);
        }
        
        if (empty($errors)) {
            $_SESSION['cart'] = [];
            $query = [];
            if ($regularResult && $regularResult['success']) {
                $query[] = 'order_number=' . urlencode($regularResult['reservation']['id']);
            }
            if ($backorderResult && $backorderResult['success']) {
                $query[] = 'backorder_number=' . urlencode($backorderResult['reservation']['id']);
            }
            header('Location: reservation.php?' . implode('&', $query));
            exit;
        }
    }
}

include __DIR__ . '/includes/header.php';
?>

<h2>Reservierung abschließen</h2>

<?php if (!empty($errors)): ?>
    <div class="alert alert-error">
        <ul style="margin-left: 1.5rem;">
            <?php foreach ($errors as $error): ?>
                <li><?php echo htmlspecialchars($error); ?></li>
            <?php endforeach; ?>
        </ul>
    </div>
<?php endif; ?>

<div style="display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 2rem;">
    <div>
        <h3>Ihre Bestellung</h3>
        
        <?php if ($regularTotal > 0): ?>
            <h4 style="margin-top: 1rem;">Sofort verfügbar</h4>
            <?php foreach ($cartItems as $cartItem): ?>
                <?php if ($cartItem['in_stock']): ?>
                <div class="panel" style="padding: 1rem; margin-bottom: 1rem;">
                    <strong><?php echo htmlspecialchars($cartItem['product']['name']); ?></strong><br>
                    <?php if (isset($cartItem['size']) && !empty($cartItem['size'])): ?>
                        Größe: <?php echo htmlspecialchars($cartItem['size']); ?><br>
                    <?php endif; ?>
                    Menge: <?php echo $cartItem['quantity']; ?><br>
                    Preis: <?php echo formatPrice($cartItem['total']); ?>
                </div>
                <?php endif; ?>
            <?php endforeach; ?>
        <?php endif; ?>
        
        <?php if ($backorderTotal > 0): ?>
            <h4 style="margin-top: 1.5rem;">Nachbestellung</h4>
            <div class="alert alert-warning" style="margin-bottom: 1rem;">
                <strong>Hinweis:</strong> Lieferzeiten sind nicht bekannt, da die Bestellung in Chargen erfolgt.
            </div>
            <?php foreach ($cartItems as $cartItem): ?>
                <?php if (!$cartItem['in_stock']): ?>
                <div class="panel" style="padding: 1rem; margin-bottom: 1rem;">
                    <strong><?php echo htmlspecialchars($cartItem['product']['name']); ?></strong><br>
                    <?php if (isset($cartItem['size']) && !empty($cartItem['size'])): ?>
                        Größe: <?php echo htmlspecialchars($cartItem['size']); ?><br>
                    <?php endif; ?>
                    Menge: <?php echo $cartItem['quantity']; ?><br>
                    Preis: <?php echo formatPrice($cartItem['total']); ?>
                </div>
                <?php endif; ?>
            <?php endforeach; ?>
        <?php endif; ?>
        
        <div class="panel" style="padding: 1rem; margin-top: 1rem;">
            <?php if ($regularTotal > 0): ?>
                <div>Summe sofort verfügbar: <strong><?php echo formatPrice($regularTotal); ?></strong></div>
            <?php endif; ?>
            <?php if ($backorderTotal > 0): ?>
                <div>Summe Nachbestellung: <strong><?php echo formatPrice($backorderTotal); ?></strong></div>
            <?php endif; ?>
            <strong style="font-size: 1.2rem;">Gesamtsumme: <?php echo formatPrice($total); ?></strong>
        </div>
    </div>
    
    <div>
        <h3>Ihre Daten</h3>
        <form method="POST">
            <div class="form-group">
                <label for="customer_name">Name *</label>
                <input type="text" id="customer_name" name="customer_name" required 
                       value="<?php echo isset($_POST['customer_name']) ? htmlspecialchars($_POST['customer_name']) : ''; ?>">
            </div>
            
            <div class="form-group">
                <label for="customer_email">E-Mail-Adresse *</label>
                <input type="email" id="customer_email" name="customer_email" required 
                       value="<?php echo isset($_POST['customer_email']) ? htmlspecialchars($_POST['customer_email']) : ''; ?>">
            </div>
            
            <div class="alert alert-info">
                <strong>Hinweis:</strong> Nach der Reservierung erhalten Sie eine Bestellnummer. Für Nachbestellungen informieren wir Sie, sobald die komplette Bestellung zur Abholung bereit ist.
            </div>
            
            <button type="submit" name="create_reservation" class="btn" style="width: 100%;">Reservierung abschließen</button>
        </form>
        
        <div style="margin-top: 1rem;">
            <a href="cart.php" class="btn btn-secondary">Zurück zum Warenkorb</a>
        </div>
    </div>
</div>

<?php include __DIR__ . '/includes/footer.php'; ?>