query('SELECT id, name, phone FROM customers ORDER BY name ASC')->fetchAll();
} catch (Throwable $e) {
$customers = [];
}
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$branchCode = trim((string) ($_POST['branch_code'] ?? ''));
$customerId = isset($_POST['customer_id']) && $_POST['customer_id'] !== '' ? (int)$_POST['customer_id'] : null;
$customerName = trim((string) ($_POST['customer_name'] ?? ''));
$paymentMethod = trim((string) ($_POST['payment_method'] ?? 'cash'));
$paymentStatus = ($paymentMethod === 'pay_later') ? 'unpaid' : 'paid';
$saleStatus = trim((string) ($_POST['sale_status'] ?? 'completed'));
$notes = trim((string) ($_POST['notes'] ?? ''));
$cartJson = (string) ($_POST['cart_json'] ?? '[]');
$items = json_decode($cartJson, true);
if (!in_array($branchCode, $allowedBranches, true)) {
$error = tr('اختر فرعاً صالحاً لهذه الصلاحية.', 'Choose a valid branch for this role.');
} elseif (!in_array($paymentMethod, ['cash', 'card', 'transfer', 'pay_later'], true)) {
$error = tr('اختر طريقة دفع صحيحة.', 'Choose a valid payment method.');
} elseif (!is_array($items) || $items === []) {
$error = tr('أضف صنفاً واحداً على الأقل إلى الفاتورة.', 'Add at least one item to the invoice.');
} else {
$normalized = [];
$subtotal = 0.0;
$totalVat = 0.0;
$itemCount = 0;
foreach ($items as $item) {
$sku = (string) ($item['sku'] ?? '');
$qty = (int) ($item['qty'] ?? 0);
if (!isset($catalog[$sku]) || $qty < 1) {
continue;
}
$product = $catalog[$sku];
$price = (float) $product['price'];
$lineTotal = $price * $qty;
$vatPercent = (float) ($product['vat'] ?? 0);
// Assuming price is inclusive of VAT:
$itemVat = $lineTotal * ($vatPercent / 100);
$totalVat += $itemVat;
$normalized[] = [
'sku' => $sku,
'name_ar' => $product['name_ar'],
'name_en' => $product['name_en'],
'qty' => $qty,
'price' => $price,
'line_total' => $lineTotal,
'vat_percent' => $vatPercent,
'vat_amount' => $itemVat
];
$subtotal += $lineTotal;
$itemCount += $qty;
}
if ($normalized === []) {
$error = tr('الفاتورة غير صالحة بعد التحقق من الأصناف.', 'The invoice is invalid after product validation.');
} else {
$cashierName = current_lang() === 'ar' ? $user['name_ar'] : $user['name_en'];
$saleId = create_sale([
'receipt_no' => receipt_code(),
'sale_mode' => $saleMode,
'branch_code' => $branchCode,
'cashier_username' => $user['username'],
'cashier_name' => $cashierName,
'role_name' => $user['role'],
'customer_id' => $customerId,
'customer_name' => $customerName !== '' ? $customerName : null,
'payment_method' => $paymentMethod,
'payment_status' => $paymentStatus,
'items' => $normalized,
'item_count' => $itemCount,
'subtotal' => $subtotal,
'vat_amount' => $totalVat,
'total_amount' => $subtotal + $totalVat,
'status' => $saleStatus,
'notes' => $notes !== '' ? $notes : null,
]);
set_flash('success', $saleMode === 'normal'
? tr('تم حفظ الفاتورة بنجاح.', 'Invoice saved successfully.')
: tr('تم حفظ عملية POS بنجاح.', 'POS sale saved successfully.'));
redirect_to('sale.php', ['id' => $saleId]);
}
}
}
require __DIR__ . '/header.php';
?>