<?php 
include 'includes/header.php';
if (isset($_GET['id'])) {
    require_permission('slider_edit');
} else {
    require_permission('slider_add');
}
include '../includes/db.php'; 

$slide = [
    'id' => '',
    'title' => '',
    'subtitle' => '',
    'image_path' => '',
    'car_id' => '',
    'active' => 1
];
$page_title = "إضافة شريحة جديدة";

if (isset($_GET['id'])) {
    $slide_id = $_GET['id'];
    $stmt = $conn->prepare("SELECT * FROM slider WHERE id = ?");
    $stmt->bind_param("i", $slide_id);
    $stmt->execute();
    $result = $stmt->get_result();
    if ($result->num_rows === 1) {
        $slide = $result->fetch_assoc();
        $page_title = "تعديل الشريحة";
    } else {
        header("Location: slider.php?error=Slide not found");
        exit();
    }
    $stmt->close();
}

// جلب السيارات المتاحة للربط
$cars_result = $conn->query("SELECT id, name, brand, model FROM cars ORDER BY brand ASC, name ASC");
?>

<h3 class="fs-4 mb-3"><?= $page_title ?></h3>

<div class="row">
    <div class="col">
        <div class="glass-card p-4">
            <form action="slider_process.php" method="POST" enctype="multipart/form-data">
                <input type="hidden" name="id" value="<?= htmlspecialchars($slide['id']) ?>">

                <div class="mb-3">
                    <label for="title" class="form-label">العنوان الرئيسي</label>
                    <input type="text" class="form-control" id="title" name="title" value="<?= htmlspecialchars($slide['title']) ?>">
                </div>

                <div class="mb-3">
                    <label for="subtitle" class="form-label">العنوان الفرعي</label>
                    <textarea class="form-control" id="subtitle" name="subtitle" rows="3"><?= htmlspecialchars($slide['subtitle']) ?></textarea>
                </div>

                <div class="mb-3">
                    <label for="car_id" class="form-label">ربط بسيارة (عند النقر على الشريحة يتم الانتقال إليها - اختياري)</label>
                    <select class="form-select" id="car_id" name="car_id">
                        <option value="">-- لا يوجد ربط (شريحة عرض فقط) --</option>
                        <?php if ($cars_result && $cars_result->num_rows > 0): ?>
                            <?php while ($car = $cars_result->fetch_assoc()): ?>
                                <?php 
                                $car_label = trim(($car['brand'] ?? '') . ' ' . $car['name'] . ' ' . ($car['model'] ?? ''));
                                ?>
                                <option value="<?= $car['id'] ?>" <?= ($slide['car_id'] == $car['id']) ? 'selected' : '' ?>>
                                    <?= htmlspecialchars($car_label) ?>
                                </option>
                            <?php endwhile; ?>
                        <?php endif; ?>
                    </select>
                </div>

                <div class="mb-3">
                    <label for="image" class="form-label">صورة الشريحة (يفضل مقاس 1920x1080)</label>
                    <input class="form-control" type="file" id="image" name="image" accept="image/*" <?= empty($slide['id']) ? 'required' : '' ?>>
                    <?php if (!empty($slide['image_path'])): ?>
                        <div class="mt-2">
                            <small>الصورة الحالية:</small>
                            <img src="../uploads/slider/<?= htmlspecialchars($slide['image_path']) ?>" width="200" class="ms-2 rounded">
                            <input type="hidden" name="current_image" value="<?= htmlspecialchars($slide['image_path']) ?>">
                        </div>
                    <?php endif; ?>
                </div>

                <div class="form-check mb-3">
                    <input class="form-check-input" type="checkbox" id="active" name="active" value="1" <?= $slide['active'] ? 'checked' : '' ?>>
                    <label class="form-check-label" for="active">
                        فعال (عرض هذه الشريحة في الصفحة الرئيسية)
                    </label>
                </div>

                <button type="submit" class="btn btn-success mt-3">حفظ</button>
                <a href="slider.php" class="btn btn-secondary mt-3">إلغاء</a>
            </form>
        </div>
    </div>
</div>

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