jkuchar/BigFileTools

<?php

namespace BigFileTools;

use BigFileTools\Driver\ISizeDriver;

class File
{
    /**
     * Full path to file
     * @var string
     */
    private $path;

    /**
     * @var ISizeDriver
     */
    private $sizeDriver;

    /**
     * File constructor.
     * @param string $absoluteFilePath **absolute** path to file
     * @param ISizeDriver $sizeDriver Driver used for determining file size
     */
    public function __construct($absoluteFilePath, ISizeDriver $sizeDriver)
    {
        $this->path = $absoluteFilePath;
        $this->sizeDriver = $sizeDriver;
    }

    /**
     * @return \Brick\Math\BigInteger
     * @throws Driver\Exception
     */
    public function getSize()
    {
        return $this->sizeDriver->getFileSize($this->path);
    }

    /**
     * Absolute path to file
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Returns PHP's file info (some values can be incorrect due to platform limitations)
     * @return \SplFileInfo
     */
    public function getFileInfo()
    {
        return new \SplFileInfo($this->path);
    }

    /**
     * Returns if file exists and is readable
     * @return bool
     */
    public function isReadableFile()
    {
        // Do not use is_file
        // @link https://bugs.php.net/bug.php?id=27792
        // $readable = is_readable($file); // does not always return correct value for directories

        $fp = @fopen($this->path, "r"); // must be file and must be readable
        if($fp) {
            fclose($fp);
            return true;
        }
        return false;
    }

    /**
     * Moves file to new location / rename
     * @param string $destination path
     * @return bool
     * @throws Exception
     */
    function move($destination)
    {
        if (move_uploaded_file($this->path, $destination)) {
            $this->path = $destination;
            return;
        }

        @unlink($destination); // needed in PHP < 5.3 & Windows; intentionally @
        if (rename($this->path, $destination)) {
            $this->path = $destination;
            return;
        }

        if (copy($this->path, $destination)) {
            unlink($this->path); // delete file
            $this->path = $destination;
            return;
        }

        throw new Exception("File cannot be moved. All supported methods failed.");
    }
}