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<?php
require_once APPPATH . 'third_party/dompdf/autoload.inc.php';

use Dompdf\Dompdf;
use Dompdf\Options;

class Dompdf_lib {
    protected $dompdf;

public function __construct() {
        $options = new Options();
        $options->set('defaultFont', 'NotoSansBengali'); // Or 'NotoSansBengali'
        $options->set('isRemoteEnabled', true);
        $options->set('isHtml5ParserEnabled', true);
        $options->set('isFontSubsettingEnabled', true);
        $options->set('isPhpEnabled', true);
        $this->dompdf = new Dompdf($options);
        
        
    }

public function generate_pdf($html, $filename = 'document.pdf', $stream = true) {
        $this->dompdf->loadHtml($html);
        $this->dompdf->setPaper('A4', 'portrait');
        $this->dompdf->render();
        
        // Apply page number using page_script (this will be applied on each page)
        $canvas =  $this->dompdf->getCanvas();
        $canvas->page_script('
            if ($PAGE_COUNT > 0) {
                
                $pdf->line(50, 790, 550, 790, array(0, 0, 0), 0.5);
                
            }
        ');
        $canvas->page_text(50, 800, "Powered by IT Cell, HSTU", "Times-Italic", 7, array(0, 0, 255)); //
        $canvas->page_text(500, 800, "Page {PAGE_NUM} of {PAGE_COUNT}", null, 7, array(0, 0, 0)); // Customize position

if ($stream) {
            $this->dompdf->stream($filename, ["Attachment" => true]);
        } else {
            return $this->dompdf->output();
        }
    }
}
?>