// include SecSign ID Api for node.js
var SecSignIDApi = require('./SecSignIDApi.nodejs.js');

// the later auth session object
var authSession = null;

// call back function for the call of secSignIDApi.requestAuthSession(...)
var receivedAuthSessionCallback = function(authSessionObj){
	if(authSessionObj.error){
		console.log("Error " + authSessionObj.errorcode + " : " + authSessionObj.errormsg);
	} else {
		// create an authentication object. this stores the data about secsign id, request id and auth session id
		authSession = new SecSignIDApi.AuthSession(authSessionObj);
		secSignIDApi.getAuthSessionState({
	    	"secsignid" : authSessionObj.secsignid,
    		"requestid" : authSessionObj.requestid,
    		"authsessionid" : authSessionObj.authsessionid
		}, receivedAuthSessionStateCallback);
	}
};

var authenticationSessionFor = {
    "secsignid" : "zoidberg", // the secsign id itself
    "servicename" : "Node.js test", // a name which will be shown in the push notification
    "serviceaddress" : "localhost" // an address which is shown at top in the app, when user has to pick the correct access pass
};

// start by requesting an authentication session
secSignIDApi.requestAuthSession(authenticationSessionFor, receivedAuthSessionCallback);

// example for authentication session callback function. this is an example how to deal with the authentication state
var receivedAuthSessionStateCallback = function(authSessionObj){
    if(authSessionObj.error){
        console.log("Error " + authSessionObj.errorcode + " : " + authSessionObj.errormsg);
    } else {
   
        // check which state the session has
        // PENDING, EXPIRED, AUTHENTICATED, DENIED, SUSPENDED, CANCELED, FETCHED, INVALID, NOSTATE
   
        if(authSessionObj.authsessionstate == SecSignIDApi.AuthSession.PENDING){
            console.log("the authentication session is pending");
            // check again..
        }
        
        if(authSessionObj.authsessionstate == SecSignIDApi.AuthSession.AUTHENTICATED){
            //release authSession and log user in
            secSignIDApi.releaseAuthSession(authSession, userIsLoggedInCallback);
            
            // now, we can login user here at our backend/system etc
        }
    }
};