rostenkowski/imagestore

<?php

namespace Rostenkowski\Resize\Directory;


use Rostenkowski\Resize\Exceptions\DirectoryException;

/**
 * Directory wrapper
 */
class Directory
{

    /**
     * @var string
     */
    private $name;


    /**
     * @param string  $name
     * @param boolean $tryCreateDirectories
     */
    public function __construct($name, $tryCreateDirectories = true)
    {
        $this->name = $this->check($name, $tryCreateDirectories);
    }


    /**
     * Checks a directory to be existing and writable.
     * Tries to create it if it does not exist.
     *
     * @param string  $name Directory name
     * @param boolean $tryCreateDirectories
     * @return string Existing and writable directory name
     */
    private function check($name, $tryCreateDirectories = true)
    {
        $exists = true;
        $isWritable = true;

        if (!file_exists($name)) {
            $exists = false;
            if ($tryCreateDirectories) {
                umask(0002);
                $exists = @mkdir($name, 0775, true); // @: will be escalated to exception on failure
            }
        }
        if (!is_writable($name)) {
            $isWritable = false;
        }

        if (!$exists || !$isWritable) {
            throw new DirectoryException($name);
        }

        return $name;
    }


    /**
     * @return string
     */
    public function __toString()
    {
        return (string) $this->name;
    }


    /**
     * Returns TRUE if the compared directory is the same as this, FALSE otherwise.
     *
     * @param Directory $to
     * @return boolean
     */
    public function is(Directory $to)
    {
        return realpath($this->name) === realpath($to->name);
    }


}