<?php

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 * Description of menuUtil
 *
 * @author antonio
 */
class RequestHdl
{
    static $me;
    private $request;
 //   private $get;  only for debug
//    private $post;

    static function istanza()
    {
        if (!isset(self::$me)) {
            self::$me = new RequestHdl;
        }
        return self::$me;
    }

    private function __construct()
    {
        $this->request = array();
        foreach($_REQUEST as $key=>$val) {
            $this->request[$key] = $val;
        }
 //       $this->get = array();
 //       foreach($_GET as $key=>$val) {
//            $this->get[$key] = $val;
 //       }
 //       $this->post = array();
//        foreach($_POST as $key=>$val) {
 //           $this->post[$key] = $val;
  //      }
    }

    public function is_set($key)
    {
        return array_key_exists($key, $this->request);
    }

    public function is_valued($key)
    {
        if (!$this->is_set($key)) {
            return false;
        }
        return $this->request[$key];
    }

    public function has_value($key,$value)
    {
        if (!$this->is_set($key)) {
            return false;
        }
        return $this->request[$key] == $value;
    }

    public function clear_set($key)
    {
        unset($this->request[$key]);
    }

    public function select_value($key,$valIfSet,$valIfUnset)
    {
        if ($this->is_set($key)) {
            return $valIfSet;
        } else {
            return $valIfUnset;
        }
    }

    public function get_value($key,$defaltval='none')
    {
        if (!$this->is_set($key)) {
            if ($defaltval !== 'none') {
                return $defaltval;
            }
            throwError("Parameter $key not found in REQUEST");
        }
        return trim($this->request[$key]);
    }

    public function get_validated_class($key,$defaltval='none')
    {
        return Security::checkValidClass($this->get_value($key,$defaltval));
    }

    public function get_validated_id($key,$defaltval='none')
    {
        return SecurityUtil::checkValidId($this->get_value($key,$defaltval));
    }

    public function get_validated_number($key,$defaltval='none')
    {
        return Security::checkValidNumeric($this->get_value($key,$defaltval));
    }

    public function get_validated_alphanumeric($key,$defaltval='none')
    {
        return SecurityUtil::checkValidAlphanumeric($this->get_value($key,$defaltval));
    }

    public function get_validated_datetime($key,$defaltval='none')
    {
        return Security::checkValidDateTime($this->get_value($key,$defaltval));
    }

    public function get_validated_year($key,$defaltval='none')
    {
        return Security::checkValidYear($this->get_value($key,$defaltval));
    }

    public function get_validated_month($key,$defaltval='none')
    {
        return Security::checkValidMonth($this->get_value($key,$defaltval));
    }

    public function set_value($key,$value='none')
    {
        $this->request[$key] =$value;
        $_REQUEST[$key] =$value;
    }

}