<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think\behavior;
use think\Config;
use think\Log;
use think\Debug;

/**
 * 系统行为扩展：页面Trace显示输出
 * @category   Think
 * @package  Think
 * @subpackage  Behavior
 * @author   liu21st <liu21st@gmail.com>
 */
class ShowPageTrace {

    // 行为扩展的执行入口必须是run
    public function run(&$params){
        if(!IS_AJAX && Config::get('show_page_trace')) {
            echo $this->showTrace();
        }
    }

    /**
     * 显示页面Trace信息
     * @access private
     */
    private function showTrace() {
         // 系统默认显示信息
        $files  =  get_included_files();
        $info   =   [];
        foreach ($files as $key=>$file){
            $info[] = $file.' ( '.number_format(filesize($file)/1024,2).' KB )';
        }
        $trace  =   [];
        Debug::remark('START',NOW_TIME);
        $base   =   [
            '请求信息'  =>  date('Y-m-d H:i:s',$_SERVER['REQUEST_TIME']).' '.$_SERVER['SERVER_PROTOCOL'].' '.$_SERVER['REQUEST_METHOD'].' : '.$_SERVER['PHP_SELF'],
            '运行时间'  =>  Debug::getUseTime('START','END',6).'s',
            '内存开销'  =>  MEMORY_LIMIT_ON?G('START','END','m').'b':'不支持',
            '查询信息'  =>  N('db_query').' queries '.N('db_write').' writes ',
            '文件加载'  =>  count($files),
            '缓存信息'  =>  N('cache_read').' gets '.N('cache_write').' writes ',
            '配置加载'  =>  count(Config::get()),
            ];
        // 读取项目定义的Trace文件
        $traceFile  =   MODULE_PATH.'trace.php';
        if(is_file($traceFile)) {
            $base   =   array_merge($base,include $traceFile);
        }
        $debug  =   Log::getLog();
        $tabs   =   Config::get('trace_page_tabs');
        foreach ($tabs as $name=>$title){
            switch(strtoupper($name)) {
                case 'BASE':// 基本信息
                    $trace[$title]  =   $base;
                    break;
                case 'FILE': // 文件信息
                    $trace[$title]  =   $info;
                    break;
                default:// 调试信息
                    $name       =   strtoupper($name);
                    if(strpos($name,'|')) {// 多组信息
                        $array  =   explode('|',$name);
                        $result =   [];
                        foreach($array as $name){
                            $result   +=   isset($debug[$name])?$debug[$name]:[];
                        }
                        $trace[$title]  =   $result;
                    }else{
                        $trace[$title]  =   isset($debug[$name])?$debug[$name]:'';
                    }
            }
        }
        unset($files,$info,$base,$debug);
        // 调用Trace页面模板
        ob_start();
        include Config::has('tmpl_trace_file') ? Config::get('tmpl_trace_file') : THINK_PATH.'tpl/page_trace.tpl';
        return ob_get_clean();
    }
}