<?php

/**
 * Description of BaseController
 *
 * @author Mike Howard
 */
class BaseController {
    public $basename;
    public $requestMethod;
    public $arrQueryStringParams;
    public $strErrorDesc;
    public $strErrorHeader;
    
    public function __construct() {
        $this->basename = 'BaseController';
    }
    
    public static function create() { return new self(); }
    
/** 
* The __call() method is invoked automatically when a non-existing method or inaccessible method is called. 
*/
    public function __call($name, $arguments)
    {
        $this->sendOutput('', array('HTTP/1.1 404 Non-Existant method or inaccessible method called'));
    }
    
    public function checkRequestType($request)
    {
        $response = 'false';
        if (strtoupper($this->requestMethod) == $request) {
            $response = 'true';
        }
        return $response;
    }
    
    public function unprocessableEntityResponse()
    {
        $response['status_code_header'] = 'HTTP/1.1 422 Unprocessable Payload';
        $response['body'] = json_encode([
            'error' => 'Invalid input'
        ]);
        $this->strErrorDesc = 'Unprocessable Payload';
        $this->strErrorHeader = 'HTTP/1.1 422 Unprocessable Payload';
        return $response;
    }

    public function notFoundResponse()
    {
        $response['status_code_header'] = 'HTTP/1.1 404 Entity Not Found';
        $response['body'] = null;
        $this->strErrorDesc = 'Request Entity Not Found';
        $this->strErrorHeader = 'HTTP/1.1 422 Entity Not Found';
        return $response;
    }
    
    /** 
* Get URI elements. 
* 
* @return array 
*/
    protected function getUriSegments()
    {
        $requestUri = filter_input(INPUT_SERVER, 'REQUEST_URI', FILTER_SANITIZE_STRING); /*htmlspecialchars()*/
        $parsedUri = parse_url($requestUri, PHP_URL_PATH);
        $uri = explode( '/', $parsedUri );
        return $uri;
    }
    /** 
* Get querystring params. 
* 
* @return array 
*/
    protected function getQueryStringParams()
    {
        $query = array();
        $queryString = filter_input(INPUT_SERVER, 'QUERY_STRING', FILTER_SANITIZE_STRING); /*htmlspecialchars()*/
        parse_str($queryString, $query);
        return $query;
    }
    
    protected function getServerRequestMethod()
    {
        $requestMethod = filter_input(INPUT_SERVER, 'REQUEST_METHOD', FILTER_SANITIZE_STRING); /*htmlspecialchars()*/
        return $requestMethod;
    }
    /** 
* Send API output. 
* 
* @param mixed $data 
* @param string $httpHeader 
*/
    protected function sendOutput($data, $httpHeaders=array())
    {
        header_remove('Set-Cookie');
        if (is_array($httpHeaders) && count($httpHeaders)) {
            foreach ($httpHeaders as $httpHeader) {
                header($httpHeader);
            }
        }
        echo $data;
        exit;
    }
}