<?php
/**
 * Created by PhpStorm.
 * User: stanley-king
 * Date: 2018/5/7
 * Time: 下午9:28
 */

namespace statistics;

use string_helper;

class request
{
    const unknown_type = 0;
    const content_type = 1;
    const time_type = 2;
    const session_type = 3;
    const end_type = 4;

    private $mRecord;
    private $mEnded;

    public function __construct()
    {
        $this->mEnded = false;
    }

    public function add($time,$content)
    {
        $ret = $this->reqtype($time,$content);

        if($ret['type'] == request::content_type)
        {
            if($this->mEnded == false) {
                $this->mEnded = true;
            }
            else {
                $stay_time = $time - $this->mRecord['start_time'];
                $this->mRecord['stay_time'] = $stay_time;
                $this->record();

                $this->mRecord = [];
                $this->mEnded = false;
            }

            $parmas = $ret['data'];
            $this->mRecord['start_time'] = $parmas['start_time'];
            $this->mRecord['act'] = $parmas['act'];
            $this->mRecord['op'] = $parmas['op'];
            $this->mRecord['op'] = $parmas['op'];

//            $this->mRecord['from_act'] = $parmas['from_act'];
//            $this->mRecord['from_op'] = $parmas['from_op'];
        }
        elseif($ret['type'] == request::session_type)
        {
            $this->mRecord['session'] = $ret['data'];
        }
        elseif($ret['type'] == request::time_type)
        {
            $this->mRecord['reqtime'] = $ret['data'];
        }
        else {

        }
    }

    private function record()
    {
        $x = 0;

    }

    private function reqtype($time,$content)
    {
        $content = trim($content);
        if(string_helper::starts_with($content,'content='))
        {
            $content = substr($content,strlen('content='));
            $input = preg_split('/&|=/', $content);

            $params = [];
            for ($i = 0; $i < count($input); ++$i) {
                $key = $input[$i];
                $val = $input[++$i];
                $params[$key] = $val;
            }
            $params['start_time'] = $time;
            return ['type' => request::content_type,'data' => $params];
        }
        elseif(string_helper::starts_with($content,'APP MPHPSESSID ='))
        {
            $content = substr($content,strlen('APP MPHPSESSID ='));
            $content = trim($content);
            return ['type' => request::session_type,'data' => $content];
        }
        elseif(string_helper::starts_with($content,'request time=')) {
            $content = substr($content,strlen('request time='));
            $content = trim($content);
            return ['type' => request::time_type,'data' => $content];
        }
        else {
            return request::unknown_type;
        }
    }
}

class stlog
{
    private $mPath;
    private $mRequestes;

    public function __construct($path)
    {
        $this->mPath = $path;
        $this->mRequestes = [];
    }

    public function daily()
    {
        $file = fopen($this->mPath,'r+');
        while (!feof($file)) {
            $line = fgets($file);
            $this->parse($line);
        }
        fclose($file);
    }

    private function parse($line)
    {
        $command = '/\[(\d*)\s+(.*)\]\s+DEBUG:\s+(.*)/ui';
        $val = preg_match_all($command,$line,$match);
        if($val > 0) {
            $trdid   = intval($match[1][0]);
            $time = strtotime($match[2][0]);
            $content = $match[3][0];

            if(!array_key_exists($trdid,$this->mRequestes)) {
                $this->mRequestes[$trdid] = new request();
            }

            $this->mRequestes[$trdid]->add($time,$content);
        }
    }
}