ob_start();
require "./includes/php/invoice_template.php";
$template = ob_get_contents();
ob_end_clean();
$mpdf = new \mPDF();
$mpdf->WriteHTML($template);
$outputTag = $_GET['page'] === "preview-invoice" ? 'I' : 'D';
$mpdf->Output($fileName, $outputTag);
} elseif ($_GET['page'] === "issue-invoice") {
$result = $model->getInvoice($_POST['id']);
$row = $result[0];
$requestedINV = $model->calculateInvoice($row);
$requestedINV['discount'] = $row['discount'];
$requestedINV['received'] = $row['received'];
$requestedINV['comment'] = $row['comment'];
$model->updateInvoiceDetail($requestedINV, $row['invoice_detail_id']);
$year = date('Y', strtotime($row['event_start_date']));
$month = date('n', strtotime($row['event_start_date']));
$month >= 1 && $month <= 4 ? $year-- : '';
$startyear = $year;
$endyear = $year + 1;
$fileName = "SCS{$startyear}/{$endyear}-{$row['employer_id']}{$row['event_id']}.pdf";
ob_start();
require "./includes/php/invoice_template.php";
$template = ob_get_contents();
ob_end_clean();
$model->issueInvoice($row['id'], $fileName, $template);
$loggers['audit']->info("Invoice {$row['id']} issued");
header('Content-Type: text/plain; charset=utf-8');
echo $row['id'];
exit;