<?php
/**
 * Siteexport Plugin
 *
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     i-net software <tools@inetsoftware.de>
 * @author     Gerry Weissbach <gweissbach@inetsoftware.de>
 */

if (!defined('DOKU_INC')) die();
if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN', DOKU_INC . 'lib/plugins/');
require_once(DOKU_PLUGIN . 'syntax.php');

/**
 * All DokuWiki plugins to extend the parser/rendering mechanism
 * need to inherit from this class
 */
class syntax_plugin_siteexport_aggregate extends DokuWiki_Syntax_Plugin {

    private $headers = array();

    public function getType() { return 'substition'; }
    public function getPType() { return 'block'; }
    public function getSort() { return 300; }

    public function connectTo($mode) {
        // $this->Lexer->addSpecialPattern('\{\{(?=siteexport|siteexportAGGREGATOR).*?\}\}', $mode, 'plugin_siteexport_aggregate');
        $this->Lexer->addSpecialPattern('\{\{siteexportAGGREGATOR .*?\}\}', $mode, 'plugin_siteexport_aggregate');
    }

    public function handle($match, $state, $pos, Doku_Handler $handler) {
    
        $options = explode(' ', trim(substr($match, 2, -2)?:""));

        return $options;
    }
    
    private function checkComplete( &$item, $key, $namespaces ) {
        foreach( $namespaces as $namespace ) {
            if ( !(strpos($item[0], getNS($namespace)) > 0 || strpos($item[0], '|:' . getNS($namespace)) > 0) ) {
                $item[0] .= '|:' . $namespace;
            }
        }
    }
    
    public function render($mode, Doku_Renderer $renderer, $data) {
        global $ID, $conf;

        // $isAggregator = (array_shift($data) == 'siteexportAGGREGATOR');
        $isAggregator = true;
        $namespace = array();
        foreach( $data as $option ) {
            
            list($key, $value) = explode('=', $option);
            if ($key == "namespace") {
                $ns = $value;
                if ( substr($value, -1) != ':' ) {
                    $ns .= ':';
                }

                // The following function wants an page but we only have an NS at this moment
                $ns .= 'index';
                $namespace[] = $ns;
            }
        }
        
        if ( empty($namespace) ) {
            $namespace[] = $ID;
        }

        if ($mode == 'xhtml'){
        
            $renderer->info['toc'] = false;
            $renderer->nocache();
            
            $formParams = array( 'id' => sectionID('siteexport_site_aggregator', $this->headers), 'action' => wl($ID), 'class' => 'siteexport aggregator' );
            $form = new Doku_Form($formParams);
            $functions=& plugin_load('helper', 'siteexport');

            $form->addHidden('ns', $ID);
            $form->addHidden('site', $ID);

            if ( $isAggregator ) {
                $form->addHidden('siteexport_aggregate', '1');
            }

            $submitLabel = $this->getLang('AggregateSubmitLabel');
            $introduction = $this->getLang('AggragateExportPages');
            $listAllNamespaces = false;
            foreach( $data as $option ) {
                
                list($key, $value) = explode('=', $option);
                switch ($key) {
                    case "namespace":
                    // Done at the top.
                    break;
                    case "buttonTitle":
                    $submitLabel = urldecode($value);
                    break;
                    case "introduction":
                    $introduction = urldecode($value);
                    break;
                    case "listAllNamespaces":
                    $listAllNamespaces = boolval($value);
                    break;
                    default:
                    $form->addHidden($key, $value);
                    break;
                }
            }
            
            $values = array();
            $allNamespaces = $functions->__getOrderedListOfPagesForID( $listAllNamespaces ? $namespace : $namespace[0] );

            foreach( $allNamespaces as $ns ) {
                if ( !array_key_exists('_'.$ns[2], $values) ) {
                    $values['_'.$ns[2]] = $ns;
                } else if ( !in_array($ns[0], $values['_'.$ns[2]][4]) ) {
                    $values['_'.$ns[2]][0] .= '|' . $ns[0];
                }
                $values['_'.$ns[2]][4][] = $ns[0];
            }

            array_walk( $values, array( $this, 'checkComplete'), $namespace);
            $values = array_values($values);
            
            $renderer->doc .= '<div class="siteaggregator">';

            if ( empty($values) ) {
                $renderer->doc .= '<span style="color: #a00">'.$this->getLang('NoEntriesFoundHint').'</span>';
            } else {
                $form->addElement(form_makeMenuField('baseID', $values, isset($_REQUEST['baseID']) ? $_REQUEST['baseID'] : $values[0], $introduction));
                $form->addElement(form_makeButton('submit', 'siteexport', $submitLabel, array('class' => 'button download')));
    
                ob_start();
                $form->printForm();
                $renderer->doc .= ob_get_contents();
                ob_end_clean();
            }
             
            $renderer->doc .= '</div>';
            return true;
        } else if ($mode == 'metadata') {
            $renderer->meta['siteexport']['hasaggregator'] = $isAggregator;
            $renderer->meta['siteexport']['baseID'] = implode('|', $namespace);
        }

        return false;
    }
}

//Setup VIM: ex: et ts=4 enc=utf-8 :