<?php

if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN', DOKU_INC.'lib/plugins/');
if(!defined('DOKU_LF')) define('DOKU_LF', "\n");

require_once(DOKU_PLUGIN.'action.php');
class action_plugin_usetheme extends DokuWiki_Action_Plugin {

    // register hook
    public function register(Doku_Event_Handler $controller) {
        $controller->register_hook('DOKUWIKI_STARTED', 'BEFORE', $this, '_handleConf');
        //$controller->register_hook('MEDIAMANAGER_STARTED', 'BEFORE', $this, '_handleConf');
        $controller->register_hook('DETAIL_STARTED', 'BEFORE', $this, '_handleConf');
        //$controller->register_hook('TPL_CONTENT_DISPLAY', 'BEFORE', $this, '_handleContent', array());
        // only needed for not yet up-to-date templates:
        $controller->register_hook('DOKUWIKI_STARTED', 'AFTER', $this, '_defineConstants');
        //$controller->register_hook('MEDIAMANAGER_STARTED', 'AFTER', $this, '_defineConstants');
        $controller->register_hook('DETAIL_STARTED', 'AFTER', $this, '_defineConstants');
    }

    public function _defineConstants(Doku_Event $event, $param) {
        global $conf;
        // define Template baseURL
        if(!defined('DOKU_TPL'))
            define('DOKU_TPL', DOKU_BASE.'lib/tpl/'.$conf['template'].'/');

        // define real Template directory
        if(!defined('DOKU_TPLINC'))
            define('DOKU_TPLINC', DOKU_INC.'lib/tpl/'.$conf['template'].'/');
    }

    public function _handleConf(Doku_Event $event, $param) {
        global $ID, $ACT, $conf;
        $dataFile = wikiFN(cleanID($ID));
        $fp = fopen($dataFile,"r");
        $firstLine = fgets($fp,512);
        fclose($fp);
        preg_match('/~~USETHEME:(.*?)~~/', $firstLine, $match);
        $template = trim($match[1]);
        if($template) {
            $conf['template'] = $template;
        }
    }
}

// vim:ts=4:sw=4: