Settings > Invoice says), ready to
* change, and goes on as a line at the rate - or, with Bill their time off,
* goes on without a line, for work already on the invoice. ?invoice_id=
*/
require_once '../../../includes/modal_header.php';
enforceUserPermission('module_sales', 2);
$invoice_id = intval($_GET['invoice_id'] ?? 0);
$invoice = billingRow('invoice', $invoice_id);
if (!$invoice) {
exit(json_encode(['error' => 'That invoice no longer exists.']));
}
$client_id = intval($invoice['client_id']);
enforceClientAccess();
if (!billingCanEditItems('invoice', $invoice)) {
exit(json_encode(['error' => billingNumber('invoice', $invoice) . " can't take more lines - it is paid, cancelled or non-billable."]));
}
$tickets = billingUnbilledTickets($client_id);
$rules = billingTimeRules();
// One rate for them all, or each its own - a contract's after-hours rate, or a change of contract, makes more than one
$rates = array_unique(array_map(function ($t) { return sprintf('%.2f', $t['rate']); }, $tickets));
$rate = count($rates) === 1 ? floatval(reset($rates)) : ($tickets ? null : contractClientRate($client_id)['rate']);
$currency = (string) $invoice['invoice_currency_code'];
$taxes = billingTaxes();
ob_start();
?>