<?php

class MediaListing_Directory extends MediaListing_FileObject {
    
    protected $files;
    protected $parent;
    
    public function __construct($path, $parent, $scan) {
        if ( ! is_dir($path)) {
            throw new MediaListing_Exception_NotADirectory($path);
        }
        
        parent::__construct(parent::TYPE_Directory, $path);
        $this->parent = $parent;
        
        if ($scan) {
            $this->scan();
        }
    }
    
    protected function scan() {
        try {
            $iterator = new MediaListing_Utility_VisibleFilesIterator(new DirectoryIterator($this->path));
            foreach ($iterator as /** @var SplFileInfo */ $source) {
                $filename = $source->getPathname();
                $basename = basename($filename);
                $this->files["{$basename}"] = MediaListing_FileObject::create($filename, $this, false);
            }
        } catch (Exception $e) {
            echo $e->getMessage();
        }

        uasort($this->files, function($a, $b) {
                return ($a->type() == $b->type()) ? strcasecmp($a->basename(), $b->basename()) : ($a->type() < $b->type());
            }
        );
    }
    
    public function parent() {
        return $this->parent;
    }
    
    public function files() {
        return $this->files;
    }
    
    public function file($basename) {
        if ( ! key_exists($basename, $this->files)) {
            throw new MediaListing_Exception_FileNotFound($basename);
        }
        
        $subdir = $this->files["{$basename}"];
        $subdir->scan();
        
        return $subdir;
    }
    
}

?>