logClass

<?php

namespace app\libs;

/*

log::start("testing");
log::error("device:add:","wrong device ID");
log::stop();

*/
class log
{
    static $dir = "/opt/pulsa/logs/";
    static $suffix = ".log.json";
    static $name = null;
    static $info = [];
    static $logs = null;
    static $times =
        [
            "run_at" => null,
            "benchmark_checkpoint" => [],
            "benchmark_result" => null

        ];
    static $last = null;
    static $pipe = ["state"=>null,"message"=>null,"return"=>[],"debug_backtrace"=>null];


    static function start($logname=null)
    {
        if (self::$times["run_at"]==null) {
            define('FATAL', 'FATAL');
            define('INFO', 'INFO');
            define('ERROR', 'ERROR');
            define('WARN', 'WARN');
            define('TRACE', 'TRACE');
            self::$name = $logname;
            $time = time();
            self::$times["run_at"] = date("Y-m-d H:i:s",$time);
            self::$times["benchmark_checkpoint"]["START"] = self::microtime_float();
            return true;
        }
        else return false;
    }
    static function stop()
    {
        if (self::$times["run_at"]!=null) {
            self::$times["benchmark_checkpoint"]["STOP"] = self::microtime_float();
            self::$times["benchmark_result"] =
                self::$times["benchmark_checkpoint"]["STOP"]-
                self::$times["benchmark_checkpoint"]["START"];
            self::createfile();
            return true;
        }
        else return false;
    }
    static function microtime_float($value='')
    {
        list($usec, $sec) = explode(" ", microtime());
        return ((float)$usec + (float)$sec);
    }
    static function setinfo($info=[])
    {
        self::$info = $info;
    }
    static function set($logname=null,$state=null,$message=null,$return=null,$debug_backtrace=true)
    {
        if ($logname != null) {
            $states = [
                FATAL,
                INFO,
                ERROR,
                WARN,
                TRACE,
            ];
            $ok = false;
            foreach ($states as $value) {
                if ($state == $value) {
                    $ok = true;
                    break;
                }
            }
            if ($ok == false)
                $state = INFO;
            $modal = self::$pipe;
            $modal["state"] = $state;
            $modal["message"] = $message;
            $modal["return"] = $return;
            $modal["debug_backtrace"] = $debug_backtrace==false?false:debug_backtrace();
            self::$logs[$logname][]=$modal;
            self::$times["benchmark_checkpoint"][$logname][]=self::microtime_float();
            self::$last=$logname;
            return true;
        }
        else return false;
    }
    static function getall($logname=null)
    {
        if (isset(self::$logs[$logname]))
            $return = self::$logs[$logname];
        else
            $return[0] = self::$pipe;
        return $return;
    }
    static function get($logname=null)
    {
        $return = self::$pipe;
        if ($logname==null)
            $logname = self::$last;

        if (isset(self::$logs[$logname])) {
            end(self::$logs[$logname]);
            $key = key(self::$logs[$logname]);
            if (isset(self::$logs[$logname][$key]))
                $return = self::$logs[$logname][$key];
        }
        return $return;
    }
    static function createfile()
    {
        $value =
            [
                "name" => self::$name,
                "info" => self::$info,
                "times" => self::$times,
                "logs" => self::$logs
            ];
        $value = json_encode($value,JSON_PRETTY_PRINT);
        $return = false;
        for ($i=0; $i < 100; $i++) {
            $newfile = self::$dir . self::$times["run_at"] .".". $i.".".self::$name. self::$suffix;
            if (!file_exists($newfile)) {
                touch($newfile);
                file_put_contents($newfile, $value);
                $return = true;
                break;
            }
        }
        return $return;
    }

    static function fatal($logname=null,$message=null,$return=null,$debug_backtrace=true)
    {
        return self::set($logname,FATAL,$message,$return,$debug_backtrace);
    }
    static function info($logname=null,$message=null,$return=null,$debug_backtrace=true)
    {
        return self::set($logname,INFO,$message,$return,$debug_backtrace);
    }
    static function error($logname=null,$message=null,$return=null,$debug_backtrace=true)
    {
        return self::set($logname,ERROR,$message,$return,$debug_backtrace);
    }
    static function warn($logname=null,$message=null,$return=null,$debug_backtrace=true)
    {
        return self::set($logname,WARN,$message,$return,$debug_backtrace);
    }
    static function trace($logname=null,$message=null,$return=null,$debug_backtrace=true)
    {
        return self::set($logname,TRACE,$message,$return,$debug_backtrace);
    }
}