using System;
using System.Configuration;
using System.Text.RegularExpressions;
using DataModel.Helpers;
using static System.Configuration.ConfigurationManager;

namespace DataModel
{
    /// <summary>
    /// Application configuration
    /// </summary>
    public class Config
    {
        /// <summary>
        /// Default query timeout (in seconds)
        /// </summary>
        public static int QueryTimeout
        {
            get
            {
                if (!_queryTimeout.HasValue)
                {
                    try
                    {
                        string queryTimeoutStr = ConfigurationManager.AppSettings["querytimeout"];
                        _queryTimeout = int.Parse(queryTimeoutStr);
                    }
                    catch (Exception error)
                    {
                        throw new Exception("Failed to parse query timeout", error);
                    }
                }

                return _queryTimeout.Value;
            }
        }
        private static int? _queryTimeout;

        /// <summary>
        /// Lot finder DB
        /// </summary>
        public static string LotFinderDBCS
        {
            get
            {
                if (string.IsNullOrEmpty(_lotFinderDBCS))
                {

                    try
                    {
                        //Extract configured connection string
                        string encryptedCS = ConnectionStrings["LotFinderDB"].ConnectionString;

                        //Extract encrypted password and decrypt it
                        MatchCollection matches = Regex.Matches(encryptedCS, @"Password=([^\;;]+ {0,1})");
                        string encyptedPassword = matches[0].Groups[1].Value;
                        string decryptedPassword = EncryptionHelper.Decrypt(encyptedPassword, "JDESCOPETOOL");

                        //Update connection string with decyrpted password
                        _lotFinderDBCS = encryptedCS.Replace(encyptedPassword, decryptedPassword);
                    }
                    catch (Exception error)
                    {
                        throw new Exception("Failed to parse LotFinderDB connection string", error);
                    }
                }
                return _lotFinderDBCS;
            }
        }
        private static string _lotFinderDBCS;
    }
}