using Grpc.Net.Client;
using GrpcShared.DTO.Auth;
using GrpcShared.Interfaces;
using NemAnBlazor.Services.Interfaces;
using ProtoBuf.Grpc.Client;
using GrpcShared;
using GrpcShared.DTO.User;
using GrpcShared.DTO;
using System.Security.Claims;
using Microsoft.AspNetCore.Components.Authorization;
using Blazored.SessionStorage;

namespace NemAnBlazor.Services
{
    public class AuthClientService : AuthenticationStateProvider, IAuthClientService
    {

        private IAuthService _serviceClient;
        private ISessionStorageService _sessionStorage;
        public AuthClientService(GrpcChannel grpcChannel, ISessionStorageService sessionStorage)
        {
            _serviceClient = grpcChannel.CreateGrpcService<IAuthService>();
            _sessionStorage = sessionStorage;
        }
        public async Task<TokenResponse> GetAccessToken(TokenRequest request)
        {
            return await _serviceClient.GetAccessToken(request);
        }

        public async Task<CodeRequest> GetAuthParams()
        {
            return await _serviceClient.GetAuthParams();
        }

        public async Task<UserInfoResponse> GetUserInfo(TokenMessage token)
        {
             return await _serviceClient.GetUserInfo(token);
        }

        public override async Task<AuthenticationState> GetAuthenticationStateAsync()
        {
            await Task.Delay(1500);

            string token = await _sessionStorage.GetItemAsync<string>("token");

            //token = "BQBMgFm6jnFNWWeZEMGIRP_f-ENPid7Kw8JubAyuWAe4JK0S1DPFGlaAdZ_Fey6ePkCnz8-cqC0oyRmrciWUy5ISUTQKDe8PTQn4iBRMYCgM0n4GnS1xAErHJcm4Vpu2TAngk-4vQUOfTQRcedNTfCaHKP4uFJgTlTI7JHGrtB-_EZLnFcZ2OQe31oFQIJ1wM3ZtvwnN";
            if (token == null) return new AuthenticationState(new ClaimsPrincipal(new ClaimsIdentity()));

            var userInfo = await _serviceClient.GetUserInfo(new TokenMessage { Token = token });

            List<Claim> claims = new();

            claims.Add(new Claim("email", userInfo.email!));
            claims.Add(new Claim("id", userInfo.id!));
            claims.Add(new Claim("name", userInfo.display_name!));

            ClaimsIdentity identity = new(claims, "jwt");
            //ClaimsIdentity identity = new();
            ClaimsPrincipal user = new(identity);
            AuthenticationState state = new(user);

            NotifyAuthenticationStateChanged(Task.FromResult(state));

            return state;
        }
    }
}