<?php
/**
 * Tag converter
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package wb
 * @subpackage Markup
 */

WBClass::load('WBMarkup_Converter');

/**
 * Tag converter
 *
 * Convert node to node
 *
 * @deprecated Vfsfile ist the successor for this class
 * @version 0.2.1
 * @package wb
 * @subpackage Markup
 */
class WBMarkup_Converter_Wb_Media extends WBMarkup_Converter
{
   /**
    * transform Xinha Tags to XML
    *
    * @todo implement this method
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toXml(&$node)
    {
        $xml    =   array(
                            'ns'            =>  'wb',
                            'tag'           =>  'media',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  true,
                            'cData'         =>  array()
                        );
        $size   =   array(200, 200);
        
        if (isset($node['attributes']['width'])) {
            $width      =   intval($node['attribute']['width']);
            $width      =   max($width, 400);
            $size[0]    =   $width;
        }
        if (isset($node['attributes']['height'])) {
            $height     =   intval($node['attribute']['height']);
            $height     =   max($height, 400);
            $size[0]    =   $height;
        }
        
        $atts   =   array(        
                    'src'       =>  ltrim($node['attributes']['wb:value'], '/'),
                    'size'      =>  implode('x',$size),
                    'title'     =>  $node['attributes']['title']
                    );
        if (isset($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }
        
        return true;
    }

   /**
    * transform Xml to Wxml (html) tags
    *
    * @todo implement this method
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toWxml(&$node)
    {
        $wxml   =   array(
                            'ns'            =>  '',
                            'tag'           =>  'img',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  true,
                            'cData'         =>  array()
                        );

        $size   =   '200x200';
        if (isset($node['attributes']['size'])) {
            $size   =   $node['attributes']['size'];
        }
        
        $src    =   '[[SERVICE_FILE]]'
                .   ltrim($node['attributes']['src'], '/')
                .   '?size=' . $size;
                
        $atts   =   array(
                    'wb:dialog' =>  'media',
                    'wb:value'  =>  $node['attributes']['src'],
                    'src'       =>  $src,
                    'alt'       =>  $node['attributes']['src'],
                    'title'     =>  $node['attributes']['title']
                    );
        $atts   =   array_merge($this->getDefaultAttributes(WBMarkup_Converter::TARGET_WXML), $atts);
                    
        if (isset($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }
                    
        $node               =   $wxml;
        $node['attributes'] =   $atts;
        return true;
    }
    
   /**
    * transform XML to Html
    *
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toHtml(&$node)
    {
        $video  =   false;
        $html   =   array(
                        'ns'            =>  null,
                        'tag'           =>  'img',
                        'attributes'    =>  array(),
                        'isEmpty'       =>  true,
                        'cData'         =>  null
                    );
                                        
        // merge with default attributes
        $attsDef    =   array(
                            'src'   =>  '',
                            'title' =>  '',
                            'class' =>  '',
                            'size'  =>  '',
                        );
        $node['attributes'] =   array_merge($attsDef, $node['attributes']);
        
        // html attributes
        $atts   =   array(
                        'title' =>  $node['attributes']['title'],
                    );
        if (strlen($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }
        
        // extract vfsfile
        $src    =   ltrim( $node['attributes']['src'], '/');
        
        /*
         * valid mime types are either "image" or "video" all other mime
         * type will become "image"
         */
        $mime           =   explode('/', $src);
        $atts['alt']    =   end($mime);
        if (count($mime) > 2) {
            if($mime[2] == 'video') {
                $video  =   true;                        
            } else if($mime[2] != 'image') {
                $mime[2]    =   'image';
                $atts['src']    =   implode('/', $mime);
            }
        }
        
        if ($video) {
            // @todo implament video feature
            
            // pass reference to just created html node
            $html['attributes'] =   $atts;
            $node               =   $html;
            return true;            
        }

        $size   =   array();
        if (strlen($node['attributes']['size'])) {
            $size   =   explode('x', $node['attributes']['size']);
            if (count($size) != 2) {
                $size   =   array();
            }
        }
        
        // finalize src
        /*
        if (!empty($size)) {
            $src           .=  '?' . implode('x', $size);
            $atts['width']  =   $size[0];
            $atts['height'] =   $size[1];
        }
        */
        
        $atts['src']    =   '[[SERVICE_FILE]]' . $src;

        // pass reference to just created html node
        $html['attributes'] =   $atts;
        $node               =   $html;        
        return true;
    }
}