using System;
using System.Linq;
using System.Collections.ObjectModel;
using System.Web.Routing;
using Moq;
using NUnit.Framework;
using Umbraco.Core.Models.PublishedContent;
using Umbraco.Web;
using Umbraco.Web.PublishedCache;
using Umbraco.Web.Routing;
using Umbraco.Web.Security;
using Umbraco.Core.Composing;
using Current = Umbraco.Core.Composing.Current;
using LightInject;
using Umbraco.Core.Logging;
using Umbraco.Core.Models;
using Umbraco.Core.PropertyEditors;
using Umbraco.Core.Services;
using Umbraco.Tests.TestHelpers;
using Umbraco.Tests.Testing;
using Umbraco.Tests.Testing.Objects.Accessors;

namespace Umbraco.Tests.PublishedContent
{
    [TestFixture]
    [UmbracoTest(PluginManager = UmbracoTestOptions.PluginManager.PerFixture)]
    public class PublishedContentMoreTests : PublishedContentTestBase
    {
        // read http://stackoverflow.com/questions/7713326/extension-method-that-works-on-ienumerablet-and-iqueryablet
        // and http://msmvps.com/blogs/jon_skeet/archive/2010/10/28/overloading-and-generic-constraints.aspx
        // and http://blogs.msdn.com/b/ericlippert/archive/2009/12/10/constraints-are-not-part-of-the-signature.aspx

        public override void SetUp()
        {
            base.SetUp();

            var umbracoContext = GetUmbracoContext();
            Umbraco.Web.Composing.Current.UmbracoContextAccessor.UmbracoContext = umbracoContext;
        }

        protected override void Compose()
        {
            base.Compose();

            Container.RegisterSingleton<IPublishedModelFactory>(f => new PublishedModelFactory(f.GetInstance<TypeLoader>().GetTypes<PublishedContentModel>()));
        }

        protected override TypeLoader CreatePluginManager(IServiceFactory f)
        {
            var pluginManager = base.CreatePluginManager(f);

            // this is so the model factory looks into the test assembly
            pluginManager.AssembliesToScan = pluginManager.AssembliesToScan
                .Union(new[] { typeof (PublishedContentMoreTests).Assembly })
                .ToList();

            return pluginManager;
        }

        private UmbracoContext GetUmbracoContext()
        {
            RouteData routeData = null;

            var publishedSnapshot = CreatePublishedSnapshot();

            var publishedSnapshotService = new Mock<IPublishedSnapshotService>();
            publishedSnapshotService.Setup(x => x.CreatePublishedSnapshot(It.IsAny<string>())).Returns(publishedSnapshot);

            var globalSettings = TestObjects.GetGlobalSettings();

            var httpContext = GetHttpContextFactory("http://umbraco.local/", routeData).HttpContext;
            var umbracoContext = new UmbracoContext(
                httpContext,
                publishedSnapshotService.Object,
                new WebSecurity(httpContext, Current.Services.UserService, globalSettings),
                TestObjects.GetUmbracoSettings(),
                Enumerable.Empty<IUrlProvider>(),
                globalSettings,
                new TestVariationContextAccessor());

            return umbracoContext;
        }

        public override void TearDown()
        {
            base.TearDown();

            Current.Reset();
        }

        [Test]
        public void First()
        {
            var content = UmbracoContext.Current.ContentCache.GetAtRoot().First();
            Assert.AreEqual("Content 1", content.Name);
        }

        [Test]
        public void Distinct()
        {
            var items = UmbracoContext.Current.ContentCache.GetAtRoot()
                .Distinct()
                .Distinct()
                .ToIndexedArray();

            var item = items[0];
            Assert.AreEqual("Content 1", item.Content.Name);
            Assert.IsTrue(item.IsFirst());
            Assert.IsFalse(item.IsLast());

            item = items[1];
            Assert.AreEqual("Content 2", item.Content.Name);
            Assert.IsFalse(item.IsFirst());
            Assert.IsFalse(item.IsLast());

            item = items[2];
            Assert.AreEqual("Content 2Sub", item.Content.Name);
            Assert.IsFalse(item.IsFirst());
            Assert.IsTrue(item.IsLast());
        }

        [Test]
        public void OfType1()
        {
            var items = UmbracoContext.Current.ContentCache.GetAtRoot()
                .OfType<ContentType2>()
                .Distinct()
                .ToIndexedArray();
            Assert.AreEqual(2, items.Length);
            Assert.IsInstanceOf<ContentType2>(items.First().Content);
        }

        [Test]
        public void OfType2()
        {
            var content = UmbracoContext.Current.ContentCache.GetAtRoot()
                .OfType<ContentType2Sub>()
                .Distinct()
                .ToIndexedArray();
            Assert.AreEqual(1, content.Length);
            Assert.IsInstanceOf<ContentType2Sub>(content.First().Content);
        }

        [Test]
        public void OfType()
        {
            var content = UmbracoContext.Current.ContentCache.GetAtRoot()
                .OfType<ContentType2>()
                .First(x => x.Prop1 == 1234);
            Assert.AreEqual("Content 2", content.Name);
            Assert.AreEqual(1234, content.Prop1);
        }

        [Test]
        public void Position()
        {
            var items = UmbracoContext.Current.ContentCache.GetAtRoot()
                .Where(x => x.Value<int>("prop1") == 1234)
                .ToIndexedArray();

            Assert.IsTrue(items.First().IsFirst());
            Assert.IsFalse(items.First().IsLast());
            Assert.IsFalse(items.Skip(1).First().IsFirst());
            Assert.IsFalse(items.Skip(1).First().IsLast());
            Assert.IsFalse(items.Skip(2).First().IsFirst());
            Assert.IsTrue(items.Skip(2).First().IsLast());
        }

        [Test]
        public void Issue()
        {
            var content = UmbracoContext.Current.ContentCache.GetAtRoot()
                .Distinct()
                .OfType<ContentType2>();

            var where = content.Where(x => x.Prop1 == 1234);
            var first = where.First();
            Assert.AreEqual(1234, first.Prop1);

            var content2 = UmbracoContext.Current.ContentCache.GetAtRoot()
                .OfType<ContentType2>()
                .First(x => x.Prop1 == 1234);
            Assert.AreEqual(1234, content2.Prop1);

            var content3 = UmbracoContext.Current.ContentCache.GetAtRoot()
                .OfType<ContentType2>()
                .First();
            Assert.AreEqual(1234, content3.Prop1);
        }

        [Test]
        public void PublishedContentQueryTypedContentList()
        {
            var query = new PublishedContentQuery(UmbracoContext.Current.ContentCache, UmbracoContext.Current.MediaCache);
            var result = query.Content(new[] { 1, 2, 4 }).ToArray();
            Assert.AreEqual(2, result.Length);
            Assert.AreEqual(1, result[0].Id);
            Assert.AreEqual(2, result[1].Id);
        }

        private static SolidPublishedSnapshot CreatePublishedSnapshot()
        {
            var dataTypeService = new TestObjects.TestDataTypeService(
                new DataType(new VoidEditor(Mock.Of<ILogger>())) { Id = 1 });

            var factory = new PublishedContentTypeFactory(Mock.Of<IPublishedModelFactory>(), new PropertyValueConverterCollection(Array.Empty<IPropertyValueConverter>()), dataTypeService);
            var caches = new SolidPublishedSnapshot();
            var cache = caches.InnerContentCache;

            var props = new[]
            {
                factory.CreatePropertyType("prop1", 1),
            };

            var contentType1 = factory.CreateContentType(1, "ContentType1", Enumerable.Empty<string>(), props);
            var contentType2 = factory.CreateContentType(2, "ContentType2", Enumerable.Empty<string>(), props);
            var contentType2Sub = factory.CreateContentType(3, "ContentType2Sub", Enumerable.Empty<string>(), props);

            cache.Add(new SolidPublishedContent(contentType1)
                {
                    Id = 1,
                    SortOrder = 0,
                    Name = "Content 1",
                    UrlSegment = "content-1",
                    Path = "/1",
                    Level = 1,
                    Url = "/content-1",
                    ParentId = -1,
                    ChildIds = new int[] {},
                    Properties = new Collection<IPublishedProperty>
                    {
                        new SolidPublishedProperty
                        {
                            Alias = "prop1",
                            SolidHasValue = true,
                            SolidValue = 1234,
                            SolidSourceValue = "1234"
                        }
                    }
                });

            cache.Add(new SolidPublishedContent(contentType2)
                {
                    Id = 2,
                    SortOrder = 1,
                    Name = "Content 2",
                    UrlSegment = "content-2",
                    Path = "/2",
                    Level = 1,
                    Url = "/content-2",
                    ParentId = -1,
                    ChildIds = new int[] { },
                    Properties = new Collection<IPublishedProperty>
                    {
                        new SolidPublishedProperty
                        {
                            Alias = "prop1",
                            SolidHasValue = true,
                            SolidValue = 1234,
                            SolidSourceValue = "1234"
                        }
                    }
                });

            cache.Add(new SolidPublishedContent(contentType2Sub)
            {
                Id = 3,
                SortOrder = 2,
                Name = "Content 2Sub",
                UrlSegment = "content-2sub",
                Path = "/3",
                Level = 1,
                Url = "/content-2sub",
                ParentId = -1,
                ChildIds = new int[] { },
                Properties = new Collection<IPublishedProperty>
                {
                    new SolidPublishedProperty
                    {
                        Alias = "prop1",
                        SolidHasValue = true,
                        SolidValue = 1234,
                        SolidSourceValue = "1234"
                    }
                }
            });

            return caches;
        }
    }
}