<?php

namespace App\Http\Controllers\Api;


use App\Http\Controllers\Controller;
use Input;
use Session;
use \SoapClient;

class KasController extends Controller
{


    // Logindaten
    private $kas_user = 'w017f6e4';  // KAS-Logon
    private $kas_pass = '7mMJUF4YSVWNpp39';  // KAS-Passwort
    private $session_lifetime = 600;  // Gültigkeit des Tokens in Sek. bis zur neuen Authentifizierung
    private $session_update_lifetime = 'Y'; // bei N läuft die Session nach <$session_lifetime> Sekunden ab, bei Y verlängert sich die Session mit jeder Benutzung
    private $CredentialToken = false;
    private $kas_flood_delay = 2;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->login();
    }


    public function action($func, $para = array()){

        $this->checkSession($func);
        try
        {
            $Params = array(); // Parameter für die API-Funktion
            $SoapRequest = new SoapClient('https://kasapi.kasserver.com/soap/wsdl/KasApi.wsdl');
            $req = $SoapRequest->KasApi(json_encode(array(
                'KasUser' => $this->kas_user,           // KAS-User
                'KasAuthType' => 'session',             // Auth per Sessiontoken
                'KasAuthData' => $this->CredentialToken,      // Auth-Token
                'KasRequestType' => $func,              // API-Funktion
                'KasRequestParams' => $para             // Parameter an die API-Funktion
            )));
            Session::put('flood_protection.'.$func, time() + $this->kas_flood_delay + 0.2);

            if(isset($req['Response']['ReturnString']) && $req['Response']['ReturnString'] == "TRUE"){
                return $req['Response']['ReturnInfo'];
            }
            return $req;
        }

        // Fehler abfangen und ausgeben
        catch (SoapFault $fault)
        {
            trigger_error(" Fehlernummer: {$fault->faultcode},
                    Fehlermeldung: {$fault->faultstring},
                    Verursacher: {$fault->faultactor},
                    Details: {$fault->detail}", E_USER_ERROR);
        }
    }


    private function login(){

        $this->checkSession('auth');
        try
        {

            $SoapLogon = new SoapClient('https://kasapi.kasserver.com/soap/wsdl/KasAuth.wsdl');
            $this->CredentialToken = $SoapLogon->KasAuth(json_encode(array(
                'KasUser' => $this->kas_user,
                'KasAuthType' => 'sha1',
                'KasPassword' => sha1($this->kas_pass),
                'SessionLifeTime' => $this->session_lifetime,
                'SessionUpdateLifeTime' => $this->session_update_lifetime
            )));
            Session::put('flood_protection.auth', time() + $this->kas_flood_delay + 0.2);

        }

        // Fehler abfangen und ausgeben
        catch (SoapFault $fault)
        {
            trigger_error("Fehlernummer: {$fault->faultcode},
                    Fehlermeldung: {$fault->faultstring},
                    Verursacher: {$fault->faultactor},
                    Details: {$fault->detail}", E_USER_ERROR);
        }

    }

    private function checkSession($func)
    {
        $name = 'flood_protection.'.$func;

        if(Session::exists($name)){
            $time_to_wait = (float)Session::get($name) - time();
            Session::forget($name);
        }else {
            $time_to_wait = 0;
        }
        if ( $time_to_wait >= 0 ) {
           usleep( intval( $time_to_wait*1000000 ) );
        }

    }
}