using Moq;
using Strata.CoreLib.Claims;
using Strata.FeatureFlags.Client;
using System;
using System.Collections.Generic;
using System.Security.Claims;
using System.Threading;
using System.Threading.Tasks;

namespace Strata.ContinuousImprovement.Biz.Test.Unit.Utilities
{
    public static class TestUtilities
    {
        public const string UserGuid = "eb7e4993-c65a-493a-9614-986a55dd0744";
        public const string DbGuid = "54409f55-5ddf-4748-8222-9ccfb04fb4f5";
        public const string ClientDbGuid = "1742934B-C508-402B-B8B5-D18C506474CB";
        public const string Username = "a";
        public const string Key = UserGuid + Username;
        public const string DbVersion = "202133";

        public static IClaimsPrincipalAccessor GetClaimsPrincipalAccessor(string userGuid = null, string userName = null,
            bool isSdtEmployee = true, bool isClientDatabase = false, bool isEmptyDatabase = false, int strataId = 0)
        {
            var dbGuid = DbGuid;
            if (isClientDatabase) { dbGuid = ClientDbGuid; }
            if (isEmptyDatabase) { dbGuid = Guid.Empty.ToString(); }

            var claims = new List<Claim>
            {
                new Claim(ClaimTypes.Name, "Name"),
                new Claim(StrataClaims.UserGuid, userGuid ?? UserGuid),
                new Claim(StrataClaims.Username, userName ?? Username),
                new Claim("given_name", "Firstname"),
                new Claim("family_name", "Lastname"),
                new Claim(StrataClaims.FirstName, "Firstname"),
                new Claim(StrataClaims.LastName, "Lastname"),
                new Claim(StrataClaims.DatabaseVersion, DbVersion),
                new Claim("strata_id", strataId.ToString()),
                new Claim(StrataClaims.DatabaseGuid, dbGuid),
                new Claim(StrataClaims.IsSdtEmployee, isSdtEmployee.ToString())
            };
            var claimIdentity = new ClaimsIdentity(claims, "mock");
            var claimsPrincipal = new ClaimsPrincipal(new[] { claimIdentity });
            var claimsPrincipalAccessorMock = new Mock<IClaimsPrincipalAccessor>();
            claimsPrincipalAccessorMock.Setup(s => s.GetCurrentClaimsPrincipal()).Returns(claimsPrincipal);

            return claimsPrincipalAccessorMock.Object;
        }

        internal static IFeatureFlagServiceClient GetFeatureFlagServiceClient(string featureFlag, bool isOn = true)
        {
            var featureFlagServiceClient = Mock.Of<IFeatureFlagServiceClient>();
            Mock.Get(featureFlagServiceClient)
                .Setup(s => s.IsEnabledAsync(It.IsAny<string>(), It.IsAny<Guid>(), It.IsAny<bool>(), It.IsAny<bool>(), It.IsAny<CancellationToken>()))
                .Returns<string, Guid, bool, bool, CancellationToken>((flag, dbGuid, defaultValue, returnDefaultValue, token) => Task.FromResult(flag == featureFlag && dbGuid.ToString() == DbGuid ? isOn : !isOn));
            return featureFlagServiceClient;
        }
    }
}