Subversion-Projekte lars-tiefland.laravel_shop

<?php

/*

 * This file is part of Psy Shell.

 *

 * (c) 2012-2022 Justin Hileman

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Psy\Output;

use Symfony\Component\Console\Formatter\OutputFormatter;

use Symfony\Component\Console\Formatter\OutputFormatterInterface;

use Symfony\Component\Console\Output\ConsoleOutput;

/**

 * A ConsoleOutput subclass specifically for Psy Shell output.

 */

class ShellOutput extends ConsoleOutput

{

    const NUMBER_LINES = 128;

    private $paging = 0;

    /** @var OutputPager */

    private $pager;

    /** @var Theme */

    private $theme;

    /**

     * Construct a ShellOutput instance.

     *

     * @param mixed                         $verbosity (default: self::VERBOSITY_NORMAL)

     * @param bool|null                     $decorated (default: null)

     * @param OutputFormatterInterface|null $formatter (default: null)

     * @param string|OutputPager|null       $pager     (default: null)

     */

    public function __construct($verbosity = self::VERBOSITY_NORMAL, $decorated = null, OutputFormatterInterface $formatter = null, $pager = null, $theme = null)

    {

        parent::__construct($verbosity, $decorated, $formatter);

        $this->theme = $theme ?? new Theme('modern');

        $this->initFormatters();

        if ($pager === null) {

            $this->pager = new PassthruPager($this);

        } elseif (\is_string($pager)) {

            $this->pager = new ProcOutputPager($this, $pager);

        } elseif ($pager instanceof OutputPager) {

            $this->pager = $pager;

        } else {

            throw new \InvalidArgumentException('Unexpected pager parameter: '.$pager);

        }

    }

    /**

     * Page multiple lines of output.

     *

     * The output pager is started

     *

     * If $messages is callable, it will be called, passing this output instance

     * for rendering. Otherwise, all passed $messages are paged to output.

     *

     * Upon completion, the output pager is flushed.

     *

     * @param string|array|\Closure $messages A string, array of strings or a callback

     * @param int                   $type     (default: 0)

     */

    public function page($messages, int $type = 0)

    {

        if (\is_string($messages)) {

            $messages = (array) $messages;

        }

        if (!\is_array($messages) && !\is_callable($messages)) {

            throw new \InvalidArgumentException('Paged output requires a string, array or callback');

        }

        $this->startPaging();

        if (\is_callable($messages)) {

            $messages($this);

        } else {

            $this->write($messages, true, $type);

        }

        $this->stopPaging();

    }

    /**

     * Start sending output to the output pager.

     */

    public function startPaging()

    {

        $this->paging++;

    }

    /**

     * Stop paging output and flush the output pager.

     */

    public function stopPaging()

    {

        $this->paging--;

        $this->closePager();

    }

    /**

     * Writes a message to the output.

     *

     * Optionally, pass `$type | self::NUMBER_LINES` as the $type parameter to

     * number the lines of output.

     *

     * @throws \InvalidArgumentException When unknown output type is given

     *

     * @param string|array $messages The message as an array of lines or a single string

     * @param bool         $newline  Whether to add a newline or not

     * @param int          $type     The type of output

     */

    public function write($messages, $newline = false, $type = 0)

    {

        if ($this->getVerbosity() === self::VERBOSITY_QUIET) {

            return;

        }

        $messages = (array) $messages;

        if ($type & self::NUMBER_LINES) {

            $pad = \strlen((string) \count($messages));

            $template = $this->isDecorated() ? "<aside>%{$pad}s</aside>: %s" : "%{$pad}s: %s";

            if ($type & self::OUTPUT_RAW) {

                $messages = \array_map([OutputFormatter::class, 'escape'], $messages);

            }

            foreach ($messages as $i => $line) {

                $messages[$i] = \sprintf($template, $i, $line);

            }

            // clean this up for super.

            $type = $type & ~self::NUMBER_LINES & ~self::OUTPUT_RAW;

        }

        parent::write($messages, $newline, $type);

    }

    /**

     * Writes a message to the output.

     *

     * Handles paged output, or writes directly to the output stream.

     *

     * @param string $message A message to write to the output

     * @param bool   $newline Whether to add a newline or not

     */

    public function doWrite($message, $newline)

    {

        if ($this->paging > 0) {

            $this->pager->doWrite($message, $newline);

        } else {

            parent::doWrite($message, $newline);

        }

    }

    /**

     * Set the output Theme.

     */

    public function setTheme(Theme $theme)

    {

        $this->theme = $theme;

        $this->initFormatters();

    }

    /**

     * Flush and close the output pager.

     */

    private function closePager()

    {

        if ($this->paging <= 0) {

            $this->pager->close();

        }

    }

    /**

     * Initialize output formatter styles.

     */

    private function initFormatters()

    {

        $useGrayFallback = !$this->grayExists();

        $this->theme->applyStyles($this->getFormatter(), $useGrayFallback);

        $this->theme->applyErrorStyles($this->getErrorOutput()->getFormatter(), $useGrayFallback);

    }

    /**

     * Checks if the "gray" color exists on the output.

     *

     * @return bool

     */

    private function grayExists(): bool

    {

        try {

            $this->write('<fg=gray></>');

        } catch (\InvalidArgumentException $e) {

            return false;

        }

        return true;

    }

}