Subversion-Projekte lars-tiefland.laravel_shop

<?php

namespace Spatie\Backtrace;

use RuntimeException;

class CodeSnippet

{

    /** @var int */

    protected $surroundingLine = 1;

    /** @var int */

    protected $snippetLineCount = 9;

    public function surroundingLine(int $surroundingLine): self

    {

        $this->surroundingLine = $surroundingLine;

        return $this;

    }

    public function snippetLineCount(int $snippetLineCount): self

    {

        $this->snippetLineCount = $snippetLineCount;

        return $this;

    }

    public function get(string $fileName): array

    {

        if (! file_exists($fileName)) {

            return [];

        }

        try {

            $file = new File($fileName);

            [$startLineNumber, $endLineNumber] = $this->getBounds($file->numberOfLines());

            $code = [];

            $line = $file->getLine($startLineNumber);

            $currentLineNumber = $startLineNumber;

            while ($currentLineNumber <= $endLineNumber) {

                $code[$currentLineNumber] = rtrim(substr($line, 0, 250));

                $line = $file->getNextLine();

                $currentLineNumber++;

            }

            return $code;

        } catch (RuntimeException $exception) {

            return [];

        }

    }

    protected function getBounds(int $totalNumberOfLineInFile): array

    {

        $startLine = max($this->surroundingLine - floor($this->snippetLineCount / 2), 1);

        $endLine = $startLine + ($this->snippetLineCount - 1);

        if ($endLine > $totalNumberOfLineInFile) {

            $endLine = $totalNumberOfLineInFile;

            $startLine = max($endLine - ($this->snippetLineCount - 1), 1);

        }

        return [$startLine, $endLine];

    }

}