// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using FakeItEasy;
using Squidex.Domain.Apps.Entities.Rules.Repositories;
using Squidex.Infrastructure;
using Xunit;

namespace Squidex.Domain.Apps.Entities.Rules.Indexes
{
    public class RulesIndexTests
    {
        private readonly CancellationTokenSource cts = new CancellationTokenSource();
        private readonly CancellationToken ct;
        private readonly IRuleRepository ruleRepository = A.Fake<IRuleRepository>();
        private readonly NamedId<DomainId> appId = NamedId.Of(DomainId.NewGuid(), "my-app");
        private readonly RulesIndex sut;

        public RulesIndexTests()
        {
            ct = cts.Token;

            sut = new RulesIndex(ruleRepository);
        }

        [Fact]
        public async Task Should_resolve_rules_by_id()
        {
            var rule = SetupRule(0);

            A.CallTo(() => ruleRepository.QueryAllAsync(appId.Id, ct))
                .Returns(new List<IRuleEntity> { rule });

            var actual = await sut.GetRulesAsync(appId.Id, ct);

            Assert.Same(actual[0], rule);
        }

        [Fact]
        public async Task Should_return_empty_rules_if_rule_not_created()
        {
            var rule = SetupRule(-1);

            A.CallTo(() => ruleRepository.QueryAllAsync(appId.Id, ct))
                .Returns(new List<IRuleEntity> { rule });

            var actual = await sut.GetRulesAsync(appId.Id, ct);

            Assert.Empty(actual);
        }

        [Fact]
        public async Task Should_return_empty_rules_if_rule_deleted()
        {
            var rule = SetupRule(0, true);

            A.CallTo(() => ruleRepository.QueryAllAsync(appId.Id, ct))
                .Returns(new List<IRuleEntity> { rule });

            var actual = await sut.GetRulesAsync(appId.Id, ct);

            Assert.Empty(actual);
        }

        private IRuleEntity SetupRule(long version, bool isDeleted = false)
        {
            return new RuleEntity { AppId = appId, Version = version, IsDeleted = isDeleted };
        }
    }
}