<?php

declare(strict_types=1);

namespace App\Services\Mjml;

use Symfony\Component\Process\Exception\ProcessFailedException;
use Symfony\Component\Process\Process;

class MjmlLocalBinaryRenderer implements MjmlRenderer
{
    public function __construct(
        private readonly string $binaryPath
    ) {
        if (empty(mb_trim($binaryPath))) {
            throw new MjmlException('no binary path provided');
        }
    }

    public function toHtml(string $mjml): string
    {
        $process = new Process([$this->binaryPath, '-i', '-s']);
        $process->setInput($mjml);
        $process->setTimeout(30);
        $process->run();

        if (! $process->isSuccessful()) {
            throw new ProcessFailedException($process);
        }

        $output = mb_trim($process->getOutput());

        if (empty($output)) {
            throw new MjmlException('MJML compilation returned empty output.');
        }

        return $output;
    }
}