using System;

namespace SteamWare
{
    /// <summary>
    /// classe gestione auth
    /// </summary>
    public class authProxy
    {
        #region area table adapters

        /// <summary>
        /// The ta anag dev
        /// </summary>
        public DS_devicesTableAdapters.AnagDevicesTableAdapter taAnagDev;

        /// <summary>
        /// init dei table adapters
        /// </summary>
        protected void initTA()
        {
            taAnagDev = new DS_devicesTableAdapters.AnagDevicesTableAdapter();
        }
        /// <summary>
        /// effettua setup dei connection strings da web.config della singola applicazione
        /// </summary>
        protected virtual void setupConnectionStringBase()
        {
            // connections del db
            string connString = memLayer.ML.confReadString("DevicesConnectionString");
            taAnagDev.Connection.ConnectionString = connString;
        }


        #endregion

        /// <summary>
        /// Initializes a new instance of the <see cref="authProxy"/> class.
        /// </summary>
        protected authProxy()
        {
            initTA();
            setupConnectionStringBase();
        }
        /// <summary>
        /// Singleton accesso a authProxy
        /// </summary>
        public static authProxy AP = new authProxy();

        /// <summary>
        /// Tenta autologin con autoriconoscimento Dominio/username by cookie
        /// </summary>
        /// <param name="cookieName"></param>
        /// <returns></returns>
        public static bool tryAuthByCookie(string cookieName)
        {
            logger.lg.scriviLog(String.Format(string.Format("Richiesta login da cookie {0}", cookieName)), tipoLog.INFO);
            string devSecret = memLayer.ML.getCookieVal(cookieName);
            bool answ = false;
            DS_devices.AnagDevicesRow device = null;
            if (devSecret != "" && devSecret != null)
            {
                // cerco il device...ogni dipendente può averne + di 1 registrato a suo nome...
                string Dominio = "";
                string UsrName = "";
                try
                {
                    device = DataWrap.DW.taAnagDev.getByDeviceSecret(devSecret)[0];
                    Dominio = device.Dominio;
                    UsrName = device.User_Name;
                }
                catch (Exception exc)
                {
                    logger.lg.scriviLog(String.Format("Errore recupero dati da devSecret {0}:{1}{2}", devSecret, Environment.NewLine, exc), tipoLog.ERROR);
                }
                if (Dominio != "" && UsrName != "")
                {
                    answ = true;
                    try
                    {
                        // avvio l'utente (in sessione)
                        user_std.UtSn.startUpUtente(Dominio, UsrName);
                        logger.lg.scriviLog(String.Format("Effettuata login da cookie per l'utente {0}/{1}", Dominio, UsrName), tipoLog.INFO);
                    }
                    catch
                    { }
                }
            }
            return answ;
        }
        /// <summary>
        /// formatta il secret code
        /// </summary>
        /// <param name="Dominio"></param>
        /// <param name="UsrName"></param>
        /// <param name="matrOpr"></param>
        /// <param name="DeviceName"></param>
        /// <param name="adesso"></param>
        /// <returns></returns>
        public static string getSecret(string Dominio, string UsrName, int matrOpr, string DeviceName, DateTime adesso)
        {
            return string.Format("{0}|{1}|{2}|{3}|{4}", Dominio, UsrName, DeviceName, matrOpr, adesso);
        }
        /// <summary>
        /// crea un nuovo record device e salva un nuovo cookie su db x il dispositivo e l'utente richiesti
        /// </summary>
        /// <param name="Dominio"></param>
        /// <param name="UsrName"></param>
        /// <param name="matrOpr"></param>
        /// <param name="DeviceName"></param>
        /// <param name="Description"></param>
        /// <param name="IPv4"></param>
        /// <param name="cookieName"></param>
        /// <param name="expDate"></param>
        /// <returns></returns>
        public static bool createNewCookie(string Dominio, string UsrName, int matrOpr, string DeviceName, string Description, string IPv4, string cookieName, DateTime expDate)
        {
            bool answ = false;
            // calcolo il secret...
            DateTime adesso = DateTime.Now;
            string Secret = authProxy.getSecret(Dominio, UsrName, matrOpr, DeviceName, adesso);
            string devSecret = SteamCrypto.EncryptString(Secret, cookieName);
            try
            {
                // genero nuovo record!
                DataWrap.DW.taAnagDev.insertQuery(devSecret, Dominio, UsrName, matrOpr, DeviceName, Description, adesso, IPv4);
                // salvo il cookie nel browser
                memLayer.ML.setCookieVal(cookieName, devSecret, expDate);
                logger.lg.scriviLog(String.Format("Salvato login da cookie per l'utente {0}/{1} - matr {2}", Dominio, UsrName, matrOpr), tipoLog.INFO);
                // indico come fatto
                answ = true;
            }
            catch (Exception exc)
            {
                logger.lg.scriviLog(string.Format("Errore in salvataggio cookie su db/dispositivo:{0}dominio:{1} | userName:{2} |  matr:{6} | deviceName:{3} | ip:{4}{0}{5}", Environment.NewLine, Dominio, UsrName, DeviceName, IPv4, exc, matrOpr));
            }
            return answ;
        }
        /// <summary>
        /// rimuove device da DB e toglie il cookie
        /// </summary>
        /// <param name="DeviceSecret">secret associata al device</param>
        /// <returns></returns>
        public static bool removeDeviceByDevSec(string DeviceSecret)
        {
            bool answ = false;
            try
            {
                DataWrap.DW.taAnagDev.delByDeviceSecret(DeviceSecret);
                answ = true;
            }
            catch
            { }
            return answ;
        }
        /// <summary>
        /// rimuove device da DB e toglie il cookie
        /// </summary>
        /// <param name="DeviceName">Nome Device</param>
        /// <returns></returns>
        public static bool removeDeviceByDevName(string DeviceName)
        {
            bool answ = false;
            try
            {
                DataWrap.DW.taAnagDev.delByDeviceName(DeviceName);
                answ = true;
            }
            catch
            { }
            return answ;
        }
        /// <summary>
        /// imuove device da DB e toglie il cookie
        /// </summary>
        /// <param name="Dominio"></param>
        /// <param name="UsrName"></param>
        /// <returns></returns>
        public static bool removeDeviceByUserDominio(string Dominio, string UsrName)
        {
            bool answ = false;
            try
            {
                DataWrap.DW.taAnagDev.delByDominioUser(Dominio, UsrName);
                answ = true;
            }
            catch
            { }
            return answ;
        }
    }
}