using Microsoft.Extensions.Configuration;
using Microsoft.IdentityModel.Tokens;
using Net.Business.Entities;
using Net.Business.Entities.Authenticate;
using Net.Connection;
using Net.CrossCotting;
using System;
using System.Collections.Generic;
using System.IdentityModel.Tokens.Jwt;
using System.Linq;
using System.Net.Http;
using System.Security.Claims;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace Net.Data.Authenticate
{
    public class AuthenticateRepository : RepositoryBase<object>, IAuthenticateRepository
    {
        #region Variables Globales
        private string _aplicacionName;
        private string _metodoName;
        private readonly Regex regex = new Regex(@"<(\w+)>.*");
        #endregion


        public AuthenticateRepository(IConnectionSQL context, IHttpClientFactory clientFactory, IConfiguration configuration) : base(context)
        {
            _aplicacionName = this.GetType().Name;
        }

        public async Task<BE_ResultadoTransaccion<BE_AuthenticateResponse>> GetToken(BE_AuthenticateRequest value)
        {

            _metodoName = regex.Match(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.Name).Groups[1].Value.ToString();

            ResultadoTransaccion<BE_AuthenticateResponse> resultadoTransaccion = new ResultadoTransaccion<BE_AuthenticateResponse>(_metodoName, _aplicacionName);

            return await Task.Run(() =>
            {
                BE_AuthenticateResponse response = new BE_AuthenticateResponse();
                response.Type = "Bearer";

                //=== OBTENEMOS LISTADO DE CLIENTES
                var ls_entity_client = get_client();

                //=== BUSCAMOS EXISTENCIA DEL CLIENTE
                var result_client = ls_entity_client.FirstOrDefault(x => x.client_id == value.client_id);
                if (result_client != null)
                {
                    string semilla = "c071$@p*$b@.m0dul3";

                    var claims = new[]
                    {
                        new Claim("Usuario", result_client.client_secret)
                    };

                    //firma - header
                    var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(semilla));
                    var signCredentials = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);

                    //generador de JWT
                    var token = new JwtSecurityToken(
                        issuer: "ARDICORD",
                        audience: "CUBICO",
                        claims: claims,
                        expires: DateTime.Now.AddHours(10),
                        signingCredentials: signCredentials
                    );

                    string tokenGenerado = new JwtSecurityTokenHandler().WriteToken(token);
                    response.Token = tokenGenerado;
                    return resultadoTransaccion.GetInformacionResultado(0, "", "", response);
                }
                else
                {
                    return resultadoTransaccion.GetInformacionResultado(-1, -1, "El usuario no tiene permiso");
                }
            });

        }

        public List<ModelCredential> get_client()
        {
            return new List<ModelCredential>()
            {
                new ModelCredential(){ client_secret = "YzBkZjU0ODY0NjY0NDAxN2FkOTdlMzhjMTIwNGRjMjk", client_id ="0HXoLsLmCIz05OjUwbqISz" },
                new ModelCredential(){ client_secret = "YzBkZjU0ODY0NjY0NDAxN2FkOTdlMzhjMTIwNGRjMjk", client_id ="0HXoLsLmCIz05OjUwbqISx" },
                new ModelCredential(){ client_secret = "XmTjrMQPeAOFwA3SoUUTKolohA9HfDVSijY66pOtSsJ", client_id ="rpDDCZBSsJRbQnejvULvn5" },
            };
        }
    }
}