// Copyright (c) Umbraco.
// See LICENSE for more details.

using System.Collections.Generic;
using System.Linq;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Moq;
using NUnit.Framework;
using Umbraco.Cms.Core;
using Umbraco.Cms.Core.Cache;
using Umbraco.Cms.Core.DependencyInjection;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Core.Models.Membership;
using Umbraco.Cms.Core.Scoping;
using Umbraco.Cms.Core.Services;
using Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement;
using Umbraco.Cms.Infrastructure.Scoping;
using Umbraco.Cms.Infrastructure.Telemetry.Providers;
using Umbraco.Cms.Tests.Common.Builders;
using Umbraco.Cms.Tests.Common.Builders.Extensions;
using Umbraco.Cms.Tests.Common.Testing;
using Umbraco.Cms.Tests.Integration.Testing;

using IScopeProvider = Umbraco.Cms.Infrastructure.Scoping.IScopeProvider;
using IScope = Umbraco.Cms.Infrastructure.Scoping.IScope;

namespace Umbraco.Cms.Tests.Integration.Umbraco.Core.Services
{
    /// <summary>
    /// Tests covering the SectionService
    /// </summary>
    [TestFixture]
    [UmbracoTest(Database = UmbracoTestOptions.Database.NewSchemaPerTest)]
    public class TelemetryProviderTests : UmbracoIntegrationTest
    {
        private IContentTypeService ContentTypeService => GetRequiredService<IContentTypeService>();

        private IFileService FileService => GetRequiredService<IFileService>();

        private IDomainService DomainService => GetRequiredService<IDomainService>();

        private IContentService ContentService => GetRequiredService<IContentService>();

        private DomainTelemetryProvider DetailedTelemetryProviders => GetRequiredService<DomainTelemetryProvider>();

        private ContentTelemetryProvider ContentTelemetryProvider => GetRequiredService<ContentTelemetryProvider>();

        private LanguagesTelemetryProvider LanguagesTelemetryProvider => GetRequiredService<LanguagesTelemetryProvider>();

        private UserTelemetryProvider UserTelemetryProvider => GetRequiredService<UserTelemetryProvider>();

        private MacroTelemetryProvider MacroTelemetryProvider => GetRequiredService<MacroTelemetryProvider>();

        private MediaTelemetryProvider MediaTelemetryProvider => GetRequiredService<MediaTelemetryProvider>();
        
        private PropertyEditorTelemetryProvider PropertyEditorTelemetryProvider => GetRequiredService<PropertyEditorTelemetryProvider>();

        private ILocalizationService LocalizationService => GetRequiredService<ILocalizationService>();

        private IUserService UserService => GetRequiredService<IUserService>();

        private IMediaService MediaService => GetRequiredService<IMediaService>();

        private IMediaTypeService MediaTypeService => GetRequiredService<IMediaTypeService>();

        private LanguageBuilder _languageBuilder = new();

        private UserBuilder _userBuilder = new();

        private UserGroupBuilder _userGroupBuilder = new();

        private ContentTypeBuilder _contentTypeBuilder = new ();

        protected override void CustomTestSetup(IUmbracoBuilder builder)
        {
            builder.Services.AddTransient<DomainTelemetryProvider>();
            builder.Services.AddTransient<ContentTelemetryProvider>();
            builder.Services.AddTransient<LanguagesTelemetryProvider>();
            builder.Services.AddTransient<UserTelemetryProvider>();
            builder.Services.AddTransient<MacroTelemetryProvider>();
            builder.Services.AddTransient<MediaTelemetryProvider>();
            builder.Services.AddTransient<PropertyEditorTelemetryProvider>();
            base.CustomTestSetup(builder);
        }

        [Test]
        public void Domain_Telemetry_Provider_Can_Get_Domains()
        {
            // Arrange
            DomainService.Save(new UmbracoDomain("danish", "da-DK"));

            IEnumerable<UsageInformation> result = null;
            // Act
            result = DetailedTelemetryProviders.GetInformation();


            // Assert
            Assert.AreEqual(1, result.First().Data);
        }

        [Test]
        public void SectionService_Can_Get_Allowed_Sections_For_User()
        {
            // Arrange
            Template template = TemplateBuilder.CreateTextPageTemplate();
            FileService.SaveTemplate(template);

            ContentType contentType = ContentTypeBuilder.CreateTextPageContentType(defaultTemplateId: template.Id);
            ContentTypeService.Save(contentType);

            Content blueprint = ContentBuilder.CreateTextpageContent(contentType, "hello", Constants.System.Root);
            blueprint.SetValue("title", "blueprint 1");
            blueprint.SetValue("bodyText", "blueprint 2");
            blueprint.SetValue("keywords", "blueprint 3");
            blueprint.SetValue("description", "blueprint 4");

            ContentService.SaveBlueprint(blueprint);

            IContent fromBlueprint = ContentService.CreateContentFromBlueprint(blueprint, "My test content");
            ContentService.Save(fromBlueprint);

            IEnumerable<UsageInformation> result = null;
            // Act
            result = ContentTelemetryProvider.GetInformation();


            // Assert
            // TODO : Test multiple roots, with children + grandchildren
            Assert.AreEqual(1, result.First().Data);
        }

        [Test]
        public void Language_Telemetry_Can_Get_Languages()
        {
            // Arrange
            var langTwo = _languageBuilder.WithCultureInfo("da-DK").Build();
            var langThree = _languageBuilder.WithCultureInfo("se-SV").Build();

            LocalizationService.Save(langTwo);
            LocalizationService.Save(langThree);

            IEnumerable<UsageInformation> result = null;

            // Act
            result = LanguagesTelemetryProvider.GetInformation();

            // Assert
            Assert.AreEqual(3, result.First().Data);
        }

        [Test]
        public void MacroTelemetry_Can_Get_Macros()
        {
            BuildMacros();
            var result = MacroTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.MacroCount);
            Assert.AreEqual(3, result.Data);
        }

        [Test]
        public void MediaTelemetry_Can_Get_Media_In_Folders()
        {
            IMediaType folderType = MediaTypeService.Get(1031);
            IMediaType imageMediaType = MediaTypeService.Get(1032);

            Media root = MediaBuilder.CreateMediaFolder(folderType, -1);
            MediaService.Save(root);
            int createdMediaCount = 10;
            for (int i = 0; i < createdMediaCount; i++)
            {
                Media c1 = MediaBuilder.CreateMediaImage(imageMediaType, root.Id);
                MediaService.Save(c1);
            }

            var result = MediaTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.MediaCount);
            Assert.AreEqual(createdMediaCount, result.Data);
        }

        [Test]
        public void MediaTelemetry_Can_Get_Media_In_Root()
        {
            IMediaType imageMediaType = MediaTypeService.Get(1032);
            int createdMediaCount = 10;
            for (int i = 0; i < createdMediaCount; i++)
            {
                Media c1 = MediaBuilder.CreateMediaImage(imageMediaType, -1);
                MediaService.Save(c1);
            }

            var result = MediaTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.MediaCount);
            Assert.AreEqual(createdMediaCount, result.Data);
        }

        [Test]
        public void PropertyEditorTelemetry_Counts_Same_Editor_As_One()
        {
            ContentType ct2 = ContentTypeBuilder.CreateBasicContentType("ct2", "CT2", null);
            AddPropType("title", -88, ct2);
            ContentType ct3 = ContentTypeBuilder.CreateBasicContentType("ct3", "CT3", null);
            AddPropType("title",-88, ct3);
            ContentType ct5 = ContentTypeBuilder.CreateBasicContentType("ct5", "CT5", null);
            AddPropType("blah", -88, ct5);

            ContentTypeService.Save(ct2);
            ContentTypeService.Save(ct3);
            ContentTypeService.Save(ct5);

            var properties = PropertyEditorTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.Properties);
            var result = properties.Data as IEnumerable<string>;
            Assert.AreEqual(1, result?.Count());
        }
        
        [Test]
        public void PropertyEditorTelemetry_Can_Get_All_PropertyTypes()
        {
            ContentType ct2 = ContentTypeBuilder.CreateBasicContentType("ct2", "CT2", null);
            AddPropType("title", -88, ct2);
            AddPropType("title",-99, ct2);
            ContentType ct5 = ContentTypeBuilder.CreateBasicContentType("ct5", "CT5", null);
            AddPropType("blah", -88, ct5);

            ContentTypeService.Save(ct2);
            ContentTypeService.Save(ct5);

            var properties = PropertyEditorTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.Properties);
            var result = properties.Data as IEnumerable<string>;
            Assert.AreEqual(2, result?.Count());
        }

        [Test]
        public void UserTelemetry_Can_Get_Default_User()
        {
            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserCount);

            Assert.AreEqual(1, result.Data);
        }

        [Test]
        public void UserTelemetry_Can_Get_With_Saved_User()
        {
            var user = BuildUser(0);

            UserService.Save(user);

            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserCount);

            Assert.AreEqual(2, result.Data);
        }

        [Test]
        public void UserTelemetry_Can_Get_More_Users()
        {
            int totalUsers = 99;
            var users = BuildUsers(totalUsers);
            UserService.Save(users);

            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserCount);

            Assert.AreEqual(totalUsers + 1, result.Data);
        }

        [Test]
        public void UserTelemetry_Can_Get_Default_UserGroups()
        {
            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserGroupCount);
            Assert.AreEqual(5, result.Data);
        }

        [Test]
        public void UserTelemetry_Can_Get_With_Saved_UserGroups()
        {
            var userGroup = BuildUserGroup("testGroup");

            UserService.Save(userGroup);
            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserGroupCount);

            Assert.AreEqual(6, result.Data);
        }

        [Test]
        public void UserTelemetry_Can_Get_More_UserGroups()
        {
            var userGroups = BuildUserGroups(100);


            foreach (var userGroup in userGroups)
            {
                UserService.Save(userGroup);
            }

            var result = UserTelemetryProvider.GetInformation().FirstOrDefault(x => x.Name == Constants.Telemetry.UserGroupCount);

            Assert.AreEqual(105, result.Data);
        }

        private User BuildUser(int count) =>
            _userBuilder
                .WithLogin($"username{count}", "test pass")
                .WithName("Test" + count)
                .WithEmail($"test{count}@test.com")
                .Build();

        private IEnumerable<User> BuildUsers(int count)
        {
            for (int i = 0; i < count; i++)
            {
                yield return BuildUser(count);
            }
        }

        private IUserGroup BuildUserGroup(string alias) =>
            _userGroupBuilder
                .WithAlias(alias)
                .WithName(alias)
                .WithAllowedSections(new List<string>(){"A", "B"})
                .Build();

        private IEnumerable<IUserGroup> BuildUserGroups(int count)
        {
            for (int i = 0; i < count; i++)
            {
                yield return BuildUserGroup(i.ToString());
            }
        }

        private void BuildMacros()
        {
            IScopeProvider scopeProvider = ScopeProvider;
            using (IScope scope = scopeProvider.CreateScope())
            {
                var repository = new MacroRepository((IScopeAccessor)scopeProvider, AppCaches.Disabled, Mock.Of<ILogger<MacroRepository>>(), ShortStringHelper);

                repository.Save(new Macro(ShortStringHelper, "test1", "Test1", "~/views/macropartials/test1.cshtml"));
                repository.Save(new Macro(ShortStringHelper, "test2", "Test2", "~/views/macropartials/test2.cshtml"));
                repository.Save(new Macro(ShortStringHelper, "test3", "Tet3", "~/views/macropartials/test3.cshtml"));
                scope.Complete();
            }
        }
        
        private void AddPropType(string alias, int dataTypeId, IContentType ct)
        {
            var contentCollection = new PropertyTypeCollection(true)
            {
                new PropertyType(ShortStringHelper, Constants.PropertyEditors.Aliases.TextBox, ValueStorageType.Ntext) { Alias = alias, Name = "Title", Description = string.Empty, Mandatory = false, SortOrder = 1, DataTypeId = dataTypeId },
            };
            var pg = new PropertyGroup(contentCollection)
            {
                Alias = "test",
                Name = "test",
                SortOrder = 1
            };
            ct.PropertyGroups.Add(pg);
        }
    }
}