using System.Globalization;
using System.Linq;
using Moq;
using NUnit.Framework;
using Umbraco.Core;
using Umbraco.Core.Cache;
using Umbraco.Core.Logging;
using Umbraco.Core.Models;
using Umbraco.Core.Persistence;

using Umbraco.Core.Persistence.Querying;
using Umbraco.Core.Persistence.Repositories;
using Umbraco.Core.Persistence.UnitOfWork;
using Umbraco.Tests.TestHelpers;
using Umbraco.Tests.Testing;

namespace Umbraco.Tests.Persistence.Repositories
{
    [TestFixture]
    [UmbracoTest(Database = UmbracoTestOptions.Database.NewSchemaPerTest)]
    public class LanguageRepositoryTest : TestWithDatabaseBase
    {
        public override void SetUp()
        {
            base.SetUp();

            CreateTestData();
        }

        private LanguageRepository CreateRepository(IDatabaseUnitOfWork unitOfWork)
        {
            return new LanguageRepository(unitOfWork, CacheHelper.CreateDisabledCacheHelper(), Mock.Of<ILogger>());            
        }

     

        [Test]
        public void Can_Perform_Get_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                unitOfWork.Database.AsUmbracoDatabase().EnableSqlTrace = true;
                var repository = CreateRepository(unitOfWork);

                // Act
                var language = repository.Get(1);

                // Assert
                Assert.That(language, Is.Not.Null);
                Assert.That(language.HasIdentity, Is.True);
                Assert.That(language.CultureName, Is.EqualTo("en-US"));
                Assert.That(language.IsoCode, Is.EqualTo("en-US"));   
            }
        }

        [Test]
        public void Can_Perform_Get_By_Iso_Code_On_LanguageRepository()
        {
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                var au = CultureInfo.GetCultureInfo("en-AU");
                var language = (ILanguage)new Language(au.Name)
                {
                    CultureName = au.DisplayName
                };
                repository.AddOrUpdate(language);
                unitOfWork.Flush();

                //re-get 
                language = repository.GetByIsoCode(au.Name);

                // Assert
                Assert.That(language, Is.Not.Null);
                Assert.That(language.HasIdentity, Is.True);
                Assert.That(language.CultureName, Is.EqualTo(au.DisplayName));
                Assert.That(language.IsoCode, Is.EqualTo(au.Name));
            }
        }

        [Test]
        public void Can_Perform_Get_By_Culture_Name_On_LanguageRepository()
        {
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                var au = CultureInfo.GetCultureInfo("en-AU");
                var language = (ILanguage)new Language(au.Name)
                {
                    CultureName = au.DisplayName
                };
                repository.AddOrUpdate(language);
                unitOfWork.Flush();

                //re-get 
                language = repository.GetByCultureName(au.DisplayName);

                // Assert
                Assert.That(language, Is.Not.Null);
                Assert.That(language.HasIdentity, Is.True);
                Assert.That(language.CultureName, Is.EqualTo(au.DisplayName));
                Assert.That(language.IsoCode, Is.EqualTo(au.Name));
            }
        }

        [Test]
        public void Get_WhenIdDoesntExist_ReturnsNull()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var language = repository.Get(0);

                // Assert
                Assert.That(language, Is.Null);
            }
        }

        [Test]
        public void Can_Perform_GetAll_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var languages = repository.GetAll();

                // Assert
                Assert.That(languages, Is.Not.Null);
                Assert.That(languages.Any(), Is.True);
                Assert.That(languages.Any(x => x == null), Is.False);
                Assert.That(languages.Count(), Is.EqualTo(5));
            }
        }

        [Test]
        public void Can_Perform_GetAll_With_Params_On_LanguageRepository()
        { 
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var languages = repository.GetAll(1, 2);

                // Assert
                Assert.That(languages, Is.Not.Null);
                Assert.That(languages.Any(), Is.True);
                Assert.That(languages.Any(x => x == null), Is.False);
                Assert.That(languages.Count(), Is.EqualTo(2));
            }
        }

        [Test]
        public void Can_Perform_GetByQuery_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var query = unitOfWork.Query<ILanguage>().Where(x => x.IsoCode == "da-DK");
                var result = repository.GetByQuery(query);

                // Assert
                Assert.That(result, Is.Not.Null);
                Assert.That(result.Any(), Is.True);
                Assert.That(result.FirstOrDefault().CultureName, Is.EqualTo("da-DK"));
            }
        }

        [Test]
        public void Can_Perform_Count_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var query = unitOfWork.Query<ILanguage>().Where(x => x.IsoCode.StartsWith("D"));
                int count = repository.Count(query);

                // Assert
                Assert.That(count, Is.EqualTo(2));
            }
        }

        [Test]
        public void Can_Perform_Add_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var languageBR = new Language("pt-BR") {CultureName = "pt-BR"};
                repository.AddOrUpdate(languageBR);
                unitOfWork.Flush();

                // Assert
                Assert.That(languageBR.HasIdentity, Is.True);
                Assert.That(languageBR.Id, Is.EqualTo(6)); //With 5 existing entries the Id should be 6
            }
        }

        [Test]
        public void Can_Perform_Update_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var language = repository.Get(5);
                language.IsoCode = "pt-BR";
                language.CultureName = "pt-BR";

                repository.AddOrUpdate(language);
                unitOfWork.Flush();

                var languageUpdated = repository.Get(5);

                // Assert
                Assert.That(languageUpdated, Is.Not.Null);
                Assert.That(languageUpdated.IsoCode, Is.EqualTo("pt-BR"));
                Assert.That(languageUpdated.CultureName, Is.EqualTo("pt-BR"));
            }
        }

        [Test]
        public void Can_Perform_Delete_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var language = repository.Get(3);
                repository.Delete(language);
                unitOfWork.Flush();

                var exists = repository.Exists(3);

                // Assert
                Assert.That(exists, Is.False);
            }
        }

        [Test]
        public void Can_Perform_Exists_On_LanguageRepository()
        {
            // Arrange
            var provider = TestObjects.GetDatabaseUnitOfWorkProvider(Logger);
            using (var unitOfWork = provider.CreateUnitOfWork())
            {
                var repository = CreateRepository(unitOfWork);

                // Act
                var exists = repository.Exists(3);
                var doesntExist = repository.Exists(10);

                // Assert
                Assert.That(exists, Is.True);
                Assert.That(doesntExist, Is.False);
            }
        }

        [TearDown]
        public override void TearDown()
        {
            base.TearDown();
        }

        public void CreateTestData()
        {
            var languageDK = new Language("da-DK") { CultureName = "da-DK" };
            ServiceContext.LocalizationService.Save(languageDK);//Id 2

            var languageSE = new Language("sv-SE") { CultureName = "sv-SE" };
            ServiceContext.LocalizationService.Save(languageSE);//Id 3

            var languageDE = new Language("de-DE") { CultureName = "de-DE" };
            ServiceContext.LocalizationService.Save(languageDE);//Id 4

            var languagePT = new Language("pt-PT") { CultureName = "pt-PT" };
            ServiceContext.LocalizationService.Save(languagePT);//Id 5
        }
    }
}