<?php

$v=new note2svg($argv);
$v->load();
$v->parse();

class note2svg {

    var $filename='.penNotes.strokes_data';
    var $outfilename='penNote';
    var $filedata=null;
    
    var $colors=array("#0000FF","#FF0000","#00FF00","#FFFF00","#FFFFFF","#000000");
    
    var $bgColor=5;
    
    function __construct($argv) {
        if (isset($argv[1]) && $argv[1]!='') {
            $this->filename=$argv[1];
        }
        
        if (isset($argv[2]) && $argv[2]!='') {
            $this->outfilename=$argv[2];
        }
    }
    
    function load() {
        if (!file_exists($this->filename)) {
            echo "No such file: ".$this->filename.".\n";
            exit(1);
        }
        $this->filedata=file($this->filename);
        if (!is_array($this->filedata) || count($this->filedata)<1) {
            echo "Error reading file, or file is empty.\n";
            exit(1);
        }
    }
    
    function parse() {
        $count=0;
        $note=array();
        foreach($this->filedata as $line) {
            $fields=explode(',',$line);
            if (count($fields)>2) {
                $fgColor=trim($fields[0]);
                $this->bgColor=trim($fields[1]);
                $size=explode(';',$fields[2]);
                $size=trim($size[0]);
                $fields=explode(';',$line);
                if (count($fields)>1) {
                    $coords=trim($fields[1]);
                    if ($coords!='') {
                        $coords=explode(' ',$coords);
                        $note[]=array(
                            'size'=>$size,
                            'fgColor'=>$fgColor,
                            'bgColor'=>$this->bgColor,
                            'coords'=>$coords,
                        );
                    }
                }
            } else {
                if (count($note)>0) {
                    $this->save_as_svg($note,$count);
                }
                $note=array();
                $count++;
            }
        }
    }
    
    function save_as_svg($note,$notenum) {
        $doc=new DOMDocument('1.0','UTF-8');
        $svg=$doc->createElement('svg');
        $doc->appendChild($svg);
        $svg->setAttribute('xmlns','http://www.w3.org/2000/svg');
        $ns='http://www.inkscape.org/namespaces/inkscape';
        $svg->setAttributeNS('http://www.w3.org/2000/svg','xmlns:inkscape',$ns);
        
        $notenumstr=str_pad($notenum,4,'0',STR_PAD_LEFT);
        
        $mx=10;$my=10;
        foreach($note as $stroke) {
            foreach($stroke['coords'] as $coord) {
                $c=explode(',',$coord);
                $mx=max($mx,$c[0]);
                $my=max($my,$c[1]);
            }
        }
        if ($mx<=480 && $my<=640) {
            $mx=480;
            $my=640;
        } elseif ($mx<=640 && $my<=480) {
            $mx=640;
            $my=480;
        } else {
            $mx+=10;
            $my+=10;
        }
        
        $svg->setAttribute('width',$mx);
        $svg->setAttribute('height',$my);
        
        $svg->appendChild($layer=$doc->createElement('g'));
        $layer->setAttributeNS($ns,'inkscape:label','Note '.$notenumstr);
        $layer->setAttributeNS($ns,'inkscape:groupmode','layer');
        $layer->setAttribute('id','layer1');
        
        $layer->appendChild($group=$doc->createElement('g'));
        $group->setAttribute('id','note'.$notenumstr);
        $group->setAttribute('style','fill:none');
        
        $group->appendChild($bg=$doc->createElement('rect'));
        $bg->setAttribute('style','fill:'.$this->colors[$this->bgColor]);
        $bg->setAttribute('id','background-color');
        $bg->setAttribute('x','0');
        $bg->setAttribute('y','0');
        $bg->setAttribute('width',$mx);
        $bg->setAttribute('height',$my);
        
        foreach($note as $stroke) {
            $group->appendChild($path=$doc->createElement('path'));
            $path->setAttribute('d','M '.implode(' L ',$stroke['coords']));
            $path->setAttribute('style',
                'stroke:'.$this->colors[$stroke['fgColor']]
                .';stroke-width:'.$stroke['size'].'px'
            );
        }
        
        $xml=$doc->saveXML();
        file_put_contents($this->outfilename.$notenumstr.'.svg',$xml);
        echo "Saved note ".$notenum."\n";
    }
    
}

?>