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

 // must be run within Dokuwiki
if(!defined('DOKU_INC')) die();
if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');

require_once(DOKU_PLUGIN.'syntax.php');

class syntax_plugin_namespacesearch extends DokuWiki_Syntax_Plugin {

    function getType() { return 'substition'; }
    function getPType() { return 'block'; }
    function getSort() { return 98; }

    function connectTo($mode) {
        $this->Lexer->addSpecialPattern('{{namespacesearch>.*?}}', $mode, 'plugin_namespacesearch');
    }

    function handle($match, $state, $pos, Doku_Handler $handler) {
        global $ID;

        $match = substr($match, 14, -2); // strip markup
        
        $spaces = array();
        foreach( explode(' ', $match) as $ns ) {
            $ns = cleanID($ns);

            if (($ns == '*') || ($ns == ':')) { $ns = ''; }
            elseif ($ns == '.') { $ns = getNS($ID); }
            
            $spaces[] = $ns;
        }

        return array($state, $spaces);

    }            

    function render($mode, Doku_Renderer $renderer, $data) {
        global $conf, $ID, $FANCYDATA;
        
        list($state, $spaces) = $data;

        if ($mode == 'xhtml' && $state = DOKU_LEXER_SPECIAL ) {
        
            $renderer->nocache();
            
            $helper = &plugin_load('helper', 'namespacesearch');

            $form = new Doku_Form('namespacesearchForm', wl($ID));
            $form->addElement(form_makeTextField('namespacesearchField', $FANCYDATA['namespacesearchField'], $this->getLang('keywords') . ':', 'namespacesearchField', null, array('autocomplete'=>'off')));

            /* List of Namespaces for the scope */
            $names = array();
            
            $allScopes = implode(' ', $spaces);
            $names[] = array("$allScopes", $this->getLang('all_scopes'), 'allscopes');

            foreach ( $spaces as $dir ) {
            
                $namespaces = array();
                list($dir, $class) = explode('|', $dir);
                search($namespaces,$conf['datadir'],'search_namespaces',null,$dir);
                
                foreach ($namespaces as $namespace) {
                    list($id, $type, $lvl) = array_values($namespace);
                    $names[] = array($id, ucwords(preg_replace('/[-_:]/', ' ', str_replace("$ID:", '', $id))), $class);
                }
            }

            $renderer->doc .= $helper->tpl_searchform($names, true);
            // $this->namespacesearchSuggestionInserter($renderer);
            
            return true;
        }
        return false;
    }

    function _capture_form_output($form) {

        if ( !$form ) { return ''; }
        ob_start();
        $form->printForm();
        $output = ob_get_contents();
        ob_end_clean();

        return trim($output);
    }
    
    function namespacesearchSuggestionInserter(&$renderer) {
        global $FANCYDATA, $lang, $conf, $ID;

        if ( !empty($FANCYDATA['query']) ) {
            
            //do fulltext search
            $ns = explode('@', $FANCYDATA['query']);
            
            $query = array();
            foreach ( explode(' ', array_shift($ns)) as $part) {
                if (empty($part)) { continue; }
                if ( substr($part, 0, 1) != '"' && substr($part, 0, 1) != '*' ) $part = '*' . $part;
                if ( substr($part, -1) != '"' && substr($part, -1) != '*' ) $part = $part. '*';
                $query[] = $part;
            }
            
            $query = implode(' ', $query);
            array_unshift($ns, $query);
            $query2 = array();
            foreach( $ns as $namespace ) {
                if (empty($namespace)) { continue; }
                $query2[] = trim(cleanID($namespace));
            }

            $query = implode('@', $query2);
            $data = ft_pageSearch($query,$regex);
            $renderer->doc .= '<h2>Search Result</h2>';
            if(count($data)){
                $num = 1;
                foreach($data as $id => $cnt){
                    if ( $id == $ID ) { continue; }
                    $renderer->doc .= '<div class="search_result">';
                    $renderer->doc .= html_wikilink(':'.$id, $conf['useheading']?NULL:$id, $regex);
                    $renderer->doc .= ': <span class="search_cnt">'.$cnt.' '.$lang['hits'].'</span><br />';

                    if($num < 15){ // create snippets for the first number of matches only #FIXME add to conf ?
                        $renderer->doc .= '<div class="search_snippet">'.ft_snippet($id,$regex).'</div>';
                    }
                    $renderer->doc .= '</div>';
                    $num++;
                }
            }else{
                $renderer->doc .= '<div class="nothing">'.$lang['nothingfound'].'</div>';
            }

        }
    }
}
// vim:ts=4:sw=4:et:enc=utf-8: