using System;

using Jose;

using System.Collections.Generic;

using System.Text;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);

    public static void Main()

    {

        var now = DateTime.UtcNow;

        var secretClear = "NHB1WUxPNzRSTWJXdjNqbzJWanlnU1FDTVdjMDdseE5RM3MzbFdIb0RRUjY1VDFodmt4SjNzNkp6cmNqeGdqSjk5QXhiemFRdThsaVhEWTR3blNmUGs=";

        var encodedSecret = GetSecretKeyAsBytes(SecretAsBase64Encoded(secretClear));

​

        string token=Jose.JWT.Encode(GetPayload(now), encodedSecret, JwsAlgorithm.HS512);

        Console.WriteLine("exp = " + GetExp(now));

        Console.WriteLine("token = " + token);

    }

    private static string GetPayload(DateTime utcNow)

    {

        //var user = "corp\\lee.western";

        var json = "{\"Franquicia\":\"02681\",\"CodigoAbonado\":\"000000\",\"Nombre\":\"integracionpruebas\",\"TipoPlan\":\"000\",\"ReferenciaObligatoria\":false,\"DesgloseObligatorio\":false,\"TipologiaEnvio\":0,\"GestionRecogidasTTMM\":true,\"AsignarMensajeroTTMM\":true,\"ServiciosNacionales\":[],\"Direccion\":{\"CodigoPostal\":\"28522     \",\"Localidad\":\"RIVAS VACIAMADRID\",\"Provincia\":\"0260\",\"Direccion\":\"WRWRWER\",\"TipoVia\":\"EAV\",\"Numero\":11,\"Nombre\":\"RERERERWE\",\"Telefono\":\"3232132321\",\"Contacto\":\"WERERE\",\"Referencia\":\"REF123\",\"Observaciones\":\"OBSERV123\"},\"Departamentos\":[{\"Nombre\":\"0\",\"CodigoDepartamento\":\"0\"}]}";

        return json;

    }

    private static byte[] GetSecretKeyAsBytes(string secret)

        {

            return Encoding.UTF8.GetBytes(secret);

        }

    public static string SecretAsBase64Encoded(string secret)

        {

            return Convert.ToBase64String(GetSecretKeyAsBytes(secret));

        }

    private static long GetNbf(DateTime utcNow) { return GetEpochDateTimeAsInt(utcNow); /* nbf */ }

    private static long GetExp(DateTime utcNow)

    {       

        var tokenValidFor = TimeSpan.FromDays(200);

        var expiry = utcNow.Add(tokenValidFor);

        return GetEpochDateTimeAsInt(expiry); // exp    

    }

    public static long GetEpochDateTimeAsInt(DateTime datetime)

    {

        DateTime dateTime = datetime;

        if (datetime.Kind != DateTimeKind.Utc)

            dateTime = datetime.ToUniversalTime();

        if (dateTime.ToUniversalTime() <= UnixEpoch)

            return 0;

        return (long)(dateTime - UnixEpoch).TotalSeconds;

    }

}