// CAll use
app.use(callbackFunction);

//This function save decode.role in global variable successToken
function haveTokenInformationRole(decode) {
    successToken = decode;
};

// Callback for use function
function callbackFunction(req,res,next) {
    var cookies = getCookiesMap(req.headers.cookie);
    var token = cookies["tokenName"];
    if (token){
        jwt.verify(token,'secret_code', function (err,decode) {
            haveTokenInformationRole(decode.role);
        })}else{
        res.redirect(localHost+'/html')
    }
    next();
};
//Check adminRequest
function adminRequest(req,res) {
    if(successToken === 'admin'){
        res.sendFile('C:/nodeJS/public/pageForJWT/admin.html')
    }else{
        res.redirect('/html')
    }
}
//Check guestRequest
function guestRequest(req,res) {
    if(successToken === 'guest'){
        res.sendFile('C:/nodeJS/public/pageForJWT/guest.html')
    }else{
        res.redirect('/html')
    }
}
//Check userRequest
function userRequest(req,res) {
    if(successToken === 'user'){
        res.sendFile('C:/nodeJS/public/pageForJWT/user.html')
    }else{
        res.redirect('/html')
    }
}

// Basic page
app.get ('/',function (req,res) {
    res.redirect('/html');
});

// Get methods with callbacks who check role
app.get ('/api/admin',adminRequest);
app.get ('/api/guest',guestRequest);
app.get ('/api/user',userRequest);