<?php

namespace Symfony\Component\Console\Output;

use Symfony\Component\Console\Formatter\OutputFormatterInterface;
use Symfony\Component\Console\Helper\Helper;
use Symfony\Component\Console\Terminal;

/**
 * @author Pierre du Plessis <pdples@gmail.com>
 * @author Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com>
 */
class ConsoleSectionOutput extends StreamOutput
{
    private $content = [];
    private $lines = 0;
    private $sections;
    private $terminal;

    /**
     * @param resource               $stream
     * @param ConsoleSectionOutput[] $sections
     */
    public function __construct(
        $stream,
        array &$sections,
        int $verbosity,
        bool $decorated,
        OutputFormatterInterface $formatter,
    ) {
        parent::__construct($stream, $verbosity, $decorated, $formatter);
        array_unshift($sections, $this);
        $this->sections = &$sections;
        $this->terminal = new Terminal();
    }

    /**
     * Clears previous output for this section.
     *
     * @param int $lines Number of lines to clear. If null, then the entire output of this section is cleared
     */
    public function clear(int $lines = null)
    {
        if (empty($this->content) || !$this->isDecorated()) {
            return;
        }

        if ($lines) {
            array_splice($this->content, -($lines * 2)); // Multiply lines by 2 to cater for each new line added between content
        } else {
            $lines = $this->lines;
            $this->content = [];
        }

        $this->lines -= $lines;

        parent::doWrite($this->popStreamContentUntilCurrentSection($lines), false);
    }

    /**
     * Overwrites the previous output with a new message.
     *
     * @param array|string $message
     */
    public function overwrite($message)
    {
        $this->clear();
        $this->writeln($message);
    }

    public function getContent(): string
    {
        return implode('', $this->content);
    }

    /**
     * @internal
     */
    public function addContent(string $input)
    {
        foreach (explode(\PHP_EOL, $input) as $lineContent) {
            $this->lines += ceil($this->getDisplayLength($lineContent) / $this->terminal->getWidth()) ?: 1;
            $this->content[] = $lineContent;
            $this->content[] = \PHP_EOL;
        }
    }

    /**
     * {@inheritdoc}
     */
    protected function doWrite(string $message, bool $newline)
    {
        if (!$this->isDecorated()) {
            parent::doWrite($message, $newline);

            return;
        }

        $erasedContent = $this->popStreamContentUntilCurrentSection();

        $this->addContent($message);

        parent::doWrite($message, true);
        parent::doWrite($erasedContent, false);
    }

    /**
     * At initial stage, cursor is at the end of stream output. This method makes cursor crawl upwards until it hits
     * current section. Then it erases content it crawled through. Optionally, it erases part of current section too.
     */
    private function popStreamContentUntilCurrentSection(int $numberOfLinesToClearFromCurrentSection = 0): string
    {
        $numberOfLinesToClear = $numberOfLinesToClearFromCurrentSection;
        $erasedContent = [];

        foreach ($this->sections as $section) {
            if ($section === $this) {
                break;
            }

            $numberOfLinesToClear += $section->lines;
            $erasedContent[] = $section->getContent();
        }

        if ($numberOfLinesToClear > 0) {
            // move cursor up n lines
            parent::doWrite(sprintf("\x1b[%dA", $numberOfLinesToClear), false);
            // erase to end of screen
            parent::doWrite("\x1b[0J", false);
        }

        return implode('', array_reverse($erasedContent));
    }

    private function getDisplayLength(string $text): int
    {
        return Helper::width(Helper::removeDecoration($this->getFormatter(), str_replace("\t", '        ', $text)));
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTczMDI3ODkxNTA0MTAwMCA4Mzg3NTEwNTY0MDY0MzMxIDk1NDY2MzcyOTM5NzM5MTI=