<?php

/*
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 * and open the template in the editor.
 */

/**
 * Description of Pid
 *
 * @author Amarildo Pereira.
 */
final class Pid {

    private $fileName;
    private $remove;
    private $options = [];


    public function __construct($date = true) {
        $this->options['pidDate'] = $date;
        $this->remove = true;
        $this->fileName = strstr(basename((debug_backtrace()[0]["file"])), '.', true);
        $this->PidCheck();
    }

    private function PidFile() {
        return sprintf('/tmp/%s%s.pid', $this->fileName, ($this->options['pidDate'] ? ("-" . date('Ymd')): ''));
    }

    private function PidCheck() {
        $this->PidRemoveAuto();
        if (file_exists($this->PidFile())) {
            $this->remove = false;
            exit(0);
        }

        $this->PidCreate();
        return true;
    }

    private function PidCreate() {
        file_put_contents($this->PidFile(), getmypid() . "|" . time());
    }

    public function PidRemove() {
        if ($this->remove && file_exists($this->PidFile())) {
            unlink($this->PidFile());
        }
    }
    
    private function PidRemoveAuto(){
        if(!file_exists($this->PidFile())){
            return false;
        }

        $strFile = file_get_contents($this->PidFile());
        $timeexec = explode("|", $strFile);
        if($timeexec[1] <= strtotime('-2 hour')){
            unlink($this->PidFile());
        }
    }

    /**
     * Connect clone.
     */
    private function __clone() {
        
    }
}