PhpCfdi\RfcLinc\Util\FileReader

Complexity

Total Complexity

10

Size/Duplication

Total Lines	42
Duplicated Lines	0 %

Test Coverage

Coverage

91.3%

Importance

Changes

0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__destruct()	0	3	1
A	isOpen()	0	3	1
A	close()	0	6	2
A	readLine()	0	10	4
A	open()	0	7	2

<?php

declare(strict_types=1);

namespace PhpCfdi\RfcLinc\Util;

class FileReader implements ReaderInterface
{
    /** @var resource|null */
    private $file;

    public function __destruct()
    {
        $this->close();
    }

    public function open(string $source)
    {
        $file = fopen($source, 'r');
        if (! is_resource($file)) {
            throw new \RuntimeException('Cannot create a reader from the file');
        }
        $this->file = $file;
    }

    public function readLine()
    {
        if (! is_resource($this->file)) {
            throw new \RuntimeException('File is not open');
        }
        if (feof($this->file)) {
            return false;
        }
        $line = fgets($this->file);
        return (false !== $line) ? rtrim($line, PHP_EOL) : false;
    }

    public function close()
    {
        if (is_resource($this->file)) {
            fclose($this->file);
        }
        $this->file = null;
    }

    public function isOpen(): bool
    {
        return is_resource($this->file);
    }
}