<?php

class mfRequest {
  protected static $instance;
  protected $original_request = [];
  protected $request = [];
  
  public function __construct(Array $request = []) {
    $_request = [];
    if(count($request)) {
      // get request from argument
      $_request = $request;
    } else {
      // get request from POST/GET
      if(isset($_GET)) {
        $_request = array_merge($_request, $_GET);
      }
      if(isset($_POST)) {
        $_request = array_merge($_request, $_POST);
      }
      if(!count($_request)) {
        return true;
      }
    }
    //var_dump($_request);exit;
    foreach($_request as $key => $val) {
      $this->original_request[$key] = $val;
      if(is_array($val)) {
        $this->request[$key] = $val;
      } else {
        $this->request[$key] = trim($val);
      }
      
    }
  }
  
  public static function singleton($request = false) {
		if(!isset(self::$instance)) {
			$c=__CLASS__;
			self::$instance=new $c($request);
		}
		return self::$instance;
	}
  
  public function set($name, $value) {
    if($name) {
      $this->request[$name] = $value;
    }
  }
  
  public function get($name = null) {
    if($name) {
      if(array_key_exists($name, $this->request)) {
        return $this->request[$name];
      } else {
        return null;
      }
    }
    return $this->request;
  }
  
  public function getUnmodified($name = null) {
    if($name) {
      if(array_key_exists($name, $this->original_request)) {
        return $this->original_request[$name];
      } else {
        return null;
      }
    }
    return $this->request;
  }
  
  public function isset($name) {
    if(!$name) return false;
    return array_key_exists($name, $this->request);
  }
  
  public function __get($name) {
    return $this->get($name);
  }
}