<?php

include_once( dirname( __FILE__ ) . "/../models/image.php" );
include_once( dirname( __FILE__ ) . "/phPersistentObjectSession.php" );

class phScanner
{

    private $basedir;
    function __construct( $basedir )
    {
        $this->basedir = $basedir;
    }

    function scan_dir( $path, $scanning )
    {
        $contents = array('dir' => array(), 'file' => array(), 'scanned' => 0, 'count' => 0);

        $d = opendir($this->basedir . $path);
        while (($file = readdir($d)) !== false) {
            if (in_array($file, array('.'))) {
                continue;
            }
//echo "file: $file";
            $type = filetype($this->basedir . $path . $file);
            switch ($type) {
                case 'dir':
                case 'link':
                    $contents['dir'][] = array($file);
                    break;
                default:
                    if (!preg_match("@\.(\.|jpg|png|cr2)$@i", $file)) {
                        continue;
                    }
                    $ffile = "{$this->basedir}{$path}{$file}";
                    $fingerprint = Image::calculateFingerprintForFile( $ffile );
                    $scanned = Image::fetchImageFromFingerprint( $fingerprint );
//var_dump($scanned);
                    if ( $scanning && ( $scanned == false ) )
                    {
                        $session = phPersistentObjectSession::instance();

                        echo "scanning $file<br />";
                        $scanned = new Image();
                        $scanned->fingerprint = $fingerprint;
                        $scanned->title = "";
                        $scanned->rating = 1;
                        $scanned->aperture = (float)1/4;
                        $scanned->iso = 100;
                        $scanned->shutterspeed=30;
                        $scanned->focal_length=300;
                        $scanned->flash_used=1;
                        $scanned->time= filemtime( $ffile );
                        $scanned->record_modification_time = time();
                        $scanned->geolocation_id = 5;
                        $scanned->photographer_id = "kake";
                        $session->save( $scanned );

                        $tmb = $this->createThumbnail( $ffile );
                        file_put_contents( dirname( __FILE__ ) . "/../../cache/" . $fingerprint . ".tmb.jpg", $tmb );
                    }
                    $contents['file'][] = array( 'name' => $file, 
                                'fingerprint' => $fingerprint,
                                'image' => $scanned,
                                'tmb' => $fingerprint . '.tmb.jpg' );
//array($file, $sha1, $scanned, $mime, date(DATE_RFC822, $image['date']), $image['width'], $image['height'], $image['ranking'], $kwl, $image['description']);
                    $contents['scanned'] += $scanned;
                    $contents['count']++;
                    break;
            }   
        }
        closedir($d);
        return $contents;
    }

    function update_dir( $path, $vars )
    {
        //var_dump ( $vars );

        foreach ( $vars['keywords'] as $fingerprint => $keywords )
        {
            if ( $keywords )
            {
                $keyword_array = explode( ',', $keywords );
                foreach ( $keyword_array as $index => $keyword )
                {
                    echo "checking $keyword for $fingerprint <br />";
                    
                }
            }
        }
    }

    function createThumbnail( $file )
    {
		//$type = mime_content_type($path);
		$type = 'kake';  // don't worry about mimetype for now

		$extension = strtolower( substr( $file, -4, 4 ) );
		$raw_formats = array( '.cr2', '.nef', '.crw' );
		if ( in_array( $extension, $raw_formats ) )
		{
			$type = "image/raw";
		}

		$rotate = '';
/*
		$orientation = $this->get_orientation( $file );
		if ($orientation != 0) {
			$rotate = "-rotate $orientation ";
		}
*/
                $path = $file;
		switch ($type) {
			case 'image/raw':
				$command = "dcraw -c -h $path > /tmp/photon.ppm";
//echo "running $command";
				shell_exec( $command );
                                $path = "/tmp/photon.ppm";
			case 'image/png':
			case 'image/jpeg':
			default:
				`convert -resize x96 $rotate-quality 75 '$path' '/tmp/photon.tmb.jpg'`;
				break;
		}
		$tmb = file_get_contents('/tmp/photon.tmb.jpg');

		return $tmb;
    }

}
?>