<?php

/**

 * Smarty Internal Plugin Debug

 *

 * Class to collect data for the Smarty Debugging Consol

 *

 * @package Smarty

 * @subpackage Debug

 * @author Uwe Tews

 */

/**

 * Smarty Internal Plugin Debug Class

 *

 * @package Smarty

 * @subpackage Debug

 */

class Smarty_Internal_Debug extends Smarty_Internal_Data {

    /**

     * template data

     *

     * @var array

     */

    public static $template_data = array();

    /**

     * Start logging of compile time

     *

     * @param object $template

     */

    public static function start_compile($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['start_time'] = microtime(true);

    }

    /**

     * End logging of compile time

     *

     * @param object $template

     */

    public static function end_compile($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['compile_time'] += microtime(true) - self::$template_data[$key]['start_time'];

    }

    /**

     * Start logging of render time

     *

     * @param object $template

     */

    public static function start_render($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['start_time'] = microtime(true);

    }

    /**

     * End logging of compile time

     *

     * @param object $template

     */

    public static function end_render($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['render_time'] += microtime(true) - self::$template_data[$key]['start_time'];

    }

    /**

     * Start logging of cache time

     *

     * @param object $template cached template

     */

    public static function start_cache($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['start_time'] = microtime(true);

    }

    /**

     * End logging of cache time

     *

     * @param object $template cached template

     */

    public static function end_cache($template)

    {

        $key = self::get_key($template);

        self::$template_data[$key]['cache_time'] += microtime(true) - self::$template_data[$key]['start_time'];

    }

    /**

     * Opens a window for the Smarty Debugging Consol and display the data

     *

     * @param Smarty_Internal_Template|Smarty $obj object to debug

     */

    public static function display_debug($obj)

    {

        // prepare information of assigned variables

        $ptr = self::get_debug_vars($obj);

        if ($obj instanceof Smarty) {

            $smarty = clone $obj;

        } else {

            $smarty = clone $obj->smarty;

        }

        $_assigned_vars = $ptr->tpl_vars;

        ksort($_assigned_vars);

        $_config_vars = $ptr->config_vars;

        ksort($_config_vars);

        $smarty->registered_filters = array();

        $smarty->autoload_filters = array();

        $smarty->default_modifiers = array();

        $smarty->force_compile = false;

        $smarty->left_delimiter = '{';

        $smarty->right_delimiter = '}';

        $smarty->debugging = false;

        $smarty->force_compile = false;

        $_template = new Smarty_Internal_Template($smarty->debug_tpl, $smarty);

        $_template->caching = false;

        $_template->disableSecurity();

        $_template->cache_id = null;

        $_template->compile_id = null;

        if ($obj instanceof Smarty_Internal_Template) {

            $_template->assign('template_name', $obj->source->type . ':' . $obj->source->name);

        }

        if ($obj instanceof Smarty) {

            $_template->assign('template_data', self::$template_data);

        } else {

            $_template->assign('template_data', null);

        }

        $_template->assign('assigned_vars', $_assigned_vars);

        $_template->assign('config_vars', $_config_vars);

        $_template->assign('execution_time', microtime(true) - $smarty->start_time);

        echo $_template->fetch();

    }

    /**

     * Recursively gets variables from all template/data scopes

     *

     * @param Smarty_Internal_Template|Smarty_Data $obj object to debug

     * @return StdClass

     */

    public static function get_debug_vars($obj)

    {

        $config_vars = $obj->config_vars;

        $tpl_vars = array();

        foreach ($obj->tpl_vars as $key => $var) {

            $tpl_vars[$key] = clone $var;

            if ($obj instanceof Smarty_Internal_Template) {

                $tpl_vars[$key]->scope = $obj->source->type . ':' . $obj->source->name;

            } elseif ($obj instanceof Smarty_Data) {

                $tpl_vars[$key]->scope = 'Data object';

            } else {

                $tpl_vars[$key]->scope = 'Smarty root';

            }

        }

        if (isset($obj->parent)) {

            $parent = self::get_debug_vars($obj->parent);

            $tpl_vars = array_merge($parent->tpl_vars, $tpl_vars);

            $config_vars = array_merge($parent->config_vars, $config_vars);

        } else {

            foreach (Smarty::$global_tpl_vars as $name => $var) {

                if (!array_key_exists($name, $tpl_vars)) {

                    $clone = clone $var;

                    $clone->scope = 'Global';

                    $tpl_vars[$name] = $clone;

                }

            }

        }

        return (object) array('tpl_vars' => $tpl_vars, 'config_vars' => $config_vars);

    }

    /**

     * Return key into $template_data for template

     *

     * @param object $template  template object

     * @return string   key into $template_data

     */

    private static function get_key($template)

    {

        static $_is_stringy = array('string' => true, 'eval' => true);

        // calculate Uid if not already done

        if ($template->source->uid == '') {

            $template->source->filepath;

        }

        $key = $template->source->uid;

        if (isset(self::$template_data[$key])) {

            return $key;

        } else {

            if (isset($_is_stringy[$template->source->type])) {

                self::$template_data[$key]['name'] = '\''.substr($template->source->name,0,25).'...\'';

            } else {

                self::$template_data[$key]['name'] = $template->source->filepath;

            }

            self::$template_data[$key]['compile_time'] = 0;

            self::$template_data[$key]['render_time'] = 0;

            self::$template_data[$key]['cache_time'] = 0;

            return $key;

        }

    }

}

?>