using IdentityServer.Models;
using IdentityServer3.Core.Extensions;
using IdentityServer3.Core.Models;
using IdentityServer3.Core.Services.Default;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;

namespace IdentityServer.Extensions
{
    public class TaloyhtioUserService : UserServiceBase
    {

        private static readonly List<TaloyhtioUser> Users = new List<TaloyhtioUser>();

        public static Task AddUserAsync(TaloyhtioUser data)
        {
            var user = Users.SingleOrDefault(x => x.Username == data.Username);
            if (user == null)
            {
                Users.Add(data);
            }
            else
            {
                user.Claims = data.Claims;
            }
            return Task.FromResult(0);
        }

        public override Task AuthenticateLocalAsync(LocalAuthenticationContext context)
        {
            var user = Users.SingleOrDefault(x => x.Username == context.UserName /*&& x.Password == context.Password*/);
            if (user != null)
            {
                context.AuthenticateResult = new AuthenticateResult(user.Subject, user.Username);
            }
            return Task.FromResult(0);
        }

        public override Task GetProfileDataAsync(ProfileDataRequestContext context)
        {
            var user = Users.SingleOrDefault(x => x.Subject == context.Subject.GetSubjectId());
            if (user != null)
            {
                context.IssuedClaims = user.Claims.Where(x => context.RequestedClaimTypes.Contains(x.Type));
            }
            return Task.FromResult(0);
        }
    }
}