<?php

namespace App\Services;
use Spatie\Browsershot\Browsershot;
use Illuminate\Http\Response;

class PdfWrapper {

    protected Browsershot $pdfGenerator;

    protected string $html;

    protected string $headerHtml;

    protected string $footerHtml;

    public function __construct() {

        $this->pdfGenerator = new Browsershot();

        $this->headerHtml = view('projectsClients.pdf._header')->render();

        $this->footerHtml = view('projectsClients.pdf._footer')->render();

    }

    //Load views
    public function loadView(string $bladeFile, array $data = []): self {
        
        $this -> html = view($bladeFile, $data)->render();

        return $this;
    }

    //Load HTML
    public function loadHtml(string $html): self {
        
        $this -> html = $html;

        return $this;
    }

    public function loadUrl(string $url): self {
        
        $this -> html = url($url);

        return $this;
    }
 
    //Function to generate PDFs
    public function generate(): Browsershot {
        return $this->pdfGenerator
        ->html($this->html)
        ->format('A4')
        ->margins(10, 20, 10, 20)
        ->showBrowserHeaderAndFooter()
        ->headerHtml($this->headerHtml)
        ->footerHtml($this->footerHtml)
        ->waitUntilNetworkIdle();
    }

    //Function to save to server in public folder
    public function save(string $path): void {
        $this->generate()->savePdf($path);
    }

    //Function to save the PDF to client with specific filename
    public function download(string $filename) {


        $pdf = $this->generate()->pdf();

        return new Response($pdf, 200, [
            'Content-Type' => 'application/pdf',
            'Content-Disposition' => 'attachment; filename="'.$filename.'"',
            'Content-Length' => strlen($pdf)
        ]);
    }

    //Function to view PDF in browser
    public function stream(string $filename) {

        $pdf = $this->generate()->pdf();

        return new Response($pdf, 200, [
            'Content-Type' => 'application/pdf',
            'Content-Disposition' => 'inline; filename="'.$filename.'"'
        ]);
    }
}