using System.Collections.Generic;
using NUnit.Framework;
using NzbDrone.Common;
using NzbDrone.Common.EnvironmentInfo;
using NzbDrone.Core.Download;
using NzbDrone.Core.Indexers;
using NzbDrone.Core.Jobs;
using NzbDrone.Core.Lifecycle;
using NzbDrone.Core.Messaging.Commands;
using NzbDrone.Core.Messaging.Events;
using NzbDrone.Host;
using NzbDrone.Test.Common;
using FluentAssertions;
using System.Linq;

namespace NzbDrone.App.Test
{
    [TestFixture]
    public class ContainerFixture : TestBase
    {
        StartupContext args = new StartupContext("first", "second");

        [Test]
        public void should_be_able_to_resolve_indexers()
        {
            MainAppContainerBuilder.BuildContainer(args).Resolve<IEnumerable<IIndexer>>().Should().NotBeEmpty();
        }

        [Test]
        public void should_be_able_to_resolve_downloadclients()
        {
            MainAppContainerBuilder.BuildContainer(args).Resolve<IEnumerable<IDownloadClient>>().Should().NotBeEmpty();
        }

        [Test]
        public void container_should_inject_itself()
        {
            var factory = MainAppContainerBuilder.BuildContainer(args).Resolve<IServiceFactory>();

            factory.Build<IIndexerFactory>().Should().NotBeNull();
        }

        [Test]
        public void should_resolve_command_executor_by_name()
        {
            var genericExecutor = typeof(IExecute<>).MakeGenericType(typeof(RssSyncCommand));
            var container = MainAppContainerBuilder.BuildContainer(args);

            var executor = container.Resolve(genericExecutor);

            executor.Should().NotBeNull();
            executor.Should().BeAssignableTo<IExecute<RssSyncCommand>>();
        }

        [Test]
        [Ignore("need to fix this at some point")]
        public void should_return_same_instance_of_singletons()
        {
            var container = MainAppContainerBuilder.BuildContainer(args);

            var first = container.ResolveAll<IHandle<ApplicationShutdownRequested>>().OfType<Scheduler>().Single();
            var second = container.ResolveAll<IHandle<ApplicationShutdownRequested>>().OfType<Scheduler>().Single();

            first.Should().BeSameAs(second);
        }
    }
}