<?php
/**
 * patTemplate modfifier Wxml
 *
 * $Id$
 *
 * @package patTemplate
 * @package Modifiers
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */

WBClass::load('patI18n');

/**
 * patTemplate modifier Wxml
 *
 * Convert Wombat XML format to HTML
 *
 * Parameter:
 * - tmpldir
 * - gettext: use gettext for translation
 * - domain: gettext domain
 * - mode: "html" or "tex"
 *
 * @version 1.0.1
 * @package patTemplate
 * @package Modifiers
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */
class patTemplate_Modifier_Wxml extends patTemplate_Modifier
{
    /**
     * modify the value
     *
     * @param string value
     * @param array list of parameter
     * @return string modified value
     */
    public function modify($value, $params = array())
    {
        $params =   array_merge(array(
                    'domain'    =>  '',
                    'gettext'   =>  '',
                    'tmpldir'   =>  '',
                    'handler'   =>  '', // deprecated
                    'mode'      =>  'html',
                    'tag'       =>  'div', // container: either span or div or __none
                    'class'     =>  '' // class of container
                    ), $params);


        /* @var $scan  WBMarkup_Scanner */
        $scan   =   WBClass::create( 'WBMarkup_Scanner' );

        // accept deprecated parameter "handler"
        if (!empty($params['handler'])) {
            $params['mode'] =   $params['handler'];
        }

        switch (strtolower($params['mode'])) {
            case 'tex':
                /** @var WBMarkup_Handler_Xml2Tex */
                $hdl    =   WBClass::create( 'WBMarkup_Handler_Xml2Tex' );
                break;

            default:
                /** @var WBMarkup_Handler_Xml2Html */
                $hdl    =   WBClass::create( 'WBMarkup_Handler_Xml2Html' );
                break;

        }

        $hdl->setOption($params);
        if (!empty($params['tmpldir'])) {
            $hdl->setTmplDir($params['tmpldir']);
        }

        $value  =   $this->translate($value, $params);

        $scan->setHandler($hdl);
        $scan->scan($value);

        $value  =   $hdl->getParsedContent();
        if ('tex' == strtolower($params['mode'])) {
            return $value;
        }

        $tag    =   'div';
        switch ($params['tag']) {
            case '__none':
                // no container tag at all
                return $value;
                break;

            case 'span':
                $tag    =   'span';
                break;

            default:
            case 'div':
                break;
        }

        $class  =   array();
        if (!empty($params['class'])) {
            $class  =   array_map('trim', explode(' ', trim($params['class'])));
        }
        $class[]    =   'wb-wxml-content';
        $class      =   implode(' ', $class);

        $value  =   sprintf('<%s class="%s">%s</%1$s>', $tag, $class, $value);
        return $value;
    }

    /**
     * Translate the value
     *
     * @param string value
     * @param array list of parameter
     * @return string translated value
     */
    private function translate($value, $params)
    {
        if (empty($params['gettext'])) {
            return $value;
        }

        if (!empty($params['domain'])) {
            return patI18n::dgettext($params['domain'], $value);
        }

        return patI18n::gettext($value);
    }
}