// 9001 : Tüm alanlar doldurulmalı mesjaı verir.
// 9002 : Bu mail adresine ait bir kullanıcı zaten var.
// 9003 : Kayıt yapıldı ve değerler geri dönüldü.
var userName, mailAddress, password;

module.exports = {
    post : function(request, response, next) {

        userName = request.body.userName;
        mailAddress = request.body.mailAddress;
        password = request.body.password;

        if( userName === undefined || mailAddress === undefined || password === undefined ){
            sendResult( response, 9001, "Please fill the neccessary fields!" );

        } else {
            request.azureMobile.tables('Users') // Büyük küçük har uyumuna dikkat
            .where({  userMailAddress: mailAddress  })
            .read()
            .then( results => onResult( response, request, next, results  ) )
            .catch( next ); // it is important to catch any errors and log them

        }

    }

};

function onResult(response, request, next, results) {

    if( results.length == 0 ){

         var item = {
            userMailAddress: mailAddress,
            userNameSurname: userName,
            userPassword: password,
            authToken : token(),
            refreshToken : token(),
            tokenExpire : 1440 * 2
        };

        request.azureMobile.tables( 'Users' )
            .insert(item)
            .then( insertResults => sendResult( response, 9003, JSON.stringify( insertResults )  ) )
            .catch(next);

    } else {
        sendResult( response, 9002, "There is exist!" );

    }

}

function sendResult( response, status, value ) {

    var result = "{ " +
        "status: " + status +
        ", result: " + value +
        " }";

    response.send( 200, result );

}

function token() {
    return "Basic " + rand() + rand(); // to make it longer
};

function rand() {
    return Math.random().toString(36).substr(2); // remove `0.`
};