<?php

namespace Composer\IO;

use Composer\Pcre\Preg;
use Symfony\Component\Console\Formatter\OutputFormatterInterface;
use Symfony\Component\Console\Helper\HelperSet;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\StreamableInputInterface;
use Symfony\Component\Console\Input\StringInput;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\StreamOutput;

/**
 * @author Jordi Boggiano <j.boggiano@seld.be>
 */
class BufferIO extends ConsoleIO
{
    public function __construct(
        string $input = '',
        int $verbosity = StreamOutput::VERBOSITY_NORMAL,
        ?OutputFormatterInterface $formatter = null,
    ) {
        $input = new StringInput($input);
        $input->setInteractive(false);

        $stream = fopen('php://memory', 'rw');
        if ($stream === false) {
            throw new \RuntimeException('Unable to open memory output stream');
        }
        $output = new StreamOutput($stream, $verbosity, $formatter !== null ? $formatter->isDecorated() : false, $formatter);

        parent::__construct($input, $output, new HelperSet([
            new QuestionHelper(),
        ]));
    }

    /**
     * @return string output
     */
    public function getOutput(): string
    {
        assert($this->output instanceof StreamOutput);
        fseek($this->output->getStream(), 0);

        $output = (string) stream_get_contents($this->output->getStream());

        $output = Preg::replaceCallback("{(?<=^|\n|\x08)(.+?)(\x08+)}", static function ($matches): string {
            $pre = strip_tags($matches[1]);

            if (strlen($pre) === strlen($matches[2])) {
                return '';
            }

            // TODO reverse parse the string, skipping span tags and \033\[([0-9;]+)m(.*?)\033\[0m style blobs
            return rtrim($matches[1])."\n";
        }, $output);

        return $output;
    }

    /**
     * @param string[] $inputs
     *
     * @see createStream
     */
    public function setUserInputs(array $inputs): void
    {
        if (!$this->input instanceof StreamableInputInterface) {
            throw new \RuntimeException('Setting the user inputs requires at least the version 3.2 of the symfony/console component.');
        }

        $this->input->setStream($this->createStream($inputs));
        $this->input->setInteractive(true);
    }

    /**
     * @param string[] $inputs
     *
     * @return resource stream
     */
    private function createStream(array $inputs)
    {
        $stream = fopen('php://memory', 'r+');
        if ($stream === false) {
            throw new \RuntimeException('Unable to open memory output stream');
        }

        foreach ($inputs as $input) {
            fwrite($stream, $input.PHP_EOL);
        }

        rewind($stream);

        return $stream;
    }
}__halt_compiler();----SIGNATURE:----ppFn6AhqieTqW9Se4hwoy31QzBm5qIfoU8WgIkTNsp/ZgFdi1Dk6s0cEDjV29oDclO2UlCSNFpIMoVnNyqkO20EUzJEP/NPKd6D1raElc4DWZmNgQkYd2bPj4ik/zpOeRMyO8RJgQ+OGIlugnOZ83iwHSHvDgYOyURqLsTMKJjJUtam+S+gUaJLFTOwq+XvXOG33AboPsLmxfHuNw6uc6Hvgu7Os7cbhRrjSdex3Vmey1rYFzzhuUlC2cNay2SzDqc6ZRlAqD/8GxcetrXAjWUZ1jhaas+n57DOIggY4wHNxdpy6AeDEskA5kYbucff5mWQaIf+OxhsKYnvS0t7xjooBVSR8fRKbKMzjPvsi3H1D/+Nclv8ndPMqR3Av45gQGT4/6YMOPsVGt8qCV1kYK3mCmqCh4VRrq5y3n05CkBQneTQ9i8C/g0BigPkMkBirhSmO/WpBcYJOwHvWxE0bbi3HcwiFQoMCs6Fw96lNb7R0hJm7lHfCHbY6Sj++Lyz0X7Aw6Wu/myVm2uT8YqpCrOYo9pFPEENqTKR9IpvLUBQv0LJlddTDFv5M7xUuBhEp3mXW8a8M2FMcm6XtMXLnCpJSvqx57nA0j2Ojr76XhEDyc4UxSKzPfDU1TpuOMST6Pemg+RwjEFJL460M+ShFkSe+LMdodFCz6Tu6DDqBqto=----ATTACHMENT:----OTk5Mjk2MDYyOTU5MjE4OSA0OTg1NDM2NDM5NzgxMDggNDUzOTA2MTE2MzA0NTY0Mg==