<?php

declare(strict_types=1);

namespace App\Console\Commands;

use App\Models\AppSetting;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\View;
use Illuminate\Support\Facades\Storage;

class ExportHelpPdf extends Command
{
    protected $signature = 'help:export-pdf {--output= : Output path for the PDF file}';
    protected $description = 'Genera il PDF della guida completa';

    public function handle(): int
    {
        $appName = AppSetting::getAppName() ?? 'Glastree';

        $this->components->info('Generazione HTML della guida...');

        $html = View::make('help.pdf', ['appName' => $appName])->render();

        $tmpHtml = tempnam(sys_get_temp_dir(), 'help_') . '.html';
        file_put_contents($tmpHtml, $html);

        $output = $this->option('output');
        if (!$output) {
            $output = storage_path('app/help-guida.pdf');
        }

        $this->components->info('Conversione in PDF via Chromium...');

        $cmd = sprintf(
            '/usr/bin/chromium --headless --no-sandbox --disable-gpu --print-to-pdf=%s %s 2>&1',
            escapeshellarg($output),
            escapeshellarg('file://' . $tmpHtml)
        );

        exec($cmd, $execOutput, $exitCode);

        unlink($tmpHtml);

        if ($exitCode !== 0) {
            $this->components->error('Errore Chromium: ' . implode("\n", $execOutput));
            return Command::FAILURE;
        }

        $size = filesize($output);
        $this->components->success(sprintf(
            'PDF generato: %s (%.2f MB)',
            $output,
            $size / 1024 / 1024
        ));

        return Command::SUCCESS;
    }
}