using System.Net;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Hosting.Server;
using Microsoft.AspNetCore.Hosting.Server.Features;
using Microsoft.AspNetCore.Identity;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Xunit;
using Yavsc;
using Yavsc.Models;
using Yavsc.Services;
using yavscTests.Settings;
using Yavsc.Extensions;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Mvc.ModelBinding.Binders;
using Yavsc.Models.Auth;

namespace isnd.tests
{

    [CollectionDefinition("Web server collection")]
    public class WebServerFixture : IDisposable
    {
        public List<string> Addresses { get; private set; } = new List<string>();
        public Microsoft.Extensions.Logging.ILogger Logger { get; internal set; }

        private SiteSettings siteSettings;

        public IConfigurationRoot Configuration { get; private set; }

        private WebApplication app;
        public string TestClientId { get; private set; }

        public IServiceProvider Services { get; private set; }
        public string TestingUserName { get; private set; }
        public string ProtectedTestingApiKey { get; internal set; }
        public ApplicationUser TestingUser { get; private set; }
        public bool DbCreated { get; internal set; }
        public SiteSettings SiteSettings { get => siteSettings; set => siteSettings = value; }
        public TestingSetup? TestingSetup { get; internal set; }
        public string TestClientSecret { get; private set; } = "TestClientSecret";

        public WebServerFixture()
        {
            SetupHost().Wait();
        }

        public void Dispose()
        {
            if (app!=null)
                app.StopAsync().Wait();
        }

        public async Task SetupHost()
        {
            var builder = WebApplication.CreateBuilder();

            Configuration = builder.Configuration
                .AddJsonFile("appsettings.json")
                .AddJsonFile($"appsettings.{builder.Environment.EnvironmentName}.json", optional: true)
                .AddEnvironmentVariables()
                .Build();

            this.app = builder.ConfigureWebAppServices();
            Services = app.Services;
            using (var migrationScope = app.Services.CreateScope())
            {
                var db = migrationScope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
                await db.Database.MigrateAsync();
            }
            await app.ConfigurePipeline();
            app.UseSession();
            await app.StartAsync();



            var logFactory = app.Services.GetRequiredService<ILoggerFactory>();
            Logger = logFactory.CreateLogger<WebServerFixture>();

            var server = app.Services.GetRequiredService<IServer>();

            var addressFeatures = server.Features.Get<IServerAddressesFeature>();

            foreach (var address in addressFeatures.Addresses)
            {
                Addresses.Add(address);
            }
            SiteSettings = app.Services.GetRequiredService<IOptions<SiteSettings>>().Value;

            using IServiceScope scope = app.Services.CreateScope();
            ApplicationDbContext dbContext =
                scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
            //dbContext.Database.EnsureCreated();
            dbContext.Database.Migrate();

            TestingUserName = "Tester";
            TestClientId = "testClientId";
            TestingUser = await dbContext.Users.FirstOrDefaultAsync(u => u.UserName == TestingUserName);
            EnsureUser(TestingUserName);
            // ensure a client
            var testClient = await dbContext.Client.FirstOrDefaultAsync((c) => c.Id == TestClientId);
            if (testClient == null)
            {
                testClient = new Yavsc.Models.Auth.Client
                {
                    Id = TestClientId,
                    DisplayName = "Testing Client",
                    Secret = TestClientSecret,
                    Active = true,
                    Type = ApplicationTypes.NativeConfidential,
                    AccessTokenLifetime = 900,
                    RefreshTokenLifeTime = 15000
                };
                dbContext.Client.Add(testClient);
                dbContext.SaveChanges();
            }
            else
            {
                testClient.DisplayName = "Testing Client";
                testClient.Secret = TestClientSecret;
                testClient.Active = true;
                testClient.Type = ApplicationTypes.NativeConfidential;
                testClient.AccessTokenLifetime = 900;
                testClient.RefreshTokenLifeTime = 1500;
            }
        }

        public void EnsureUser(string testingUserName)
        {
            if (TestingUser == null)
            {
                using IServiceScope scope = app.Services.CreateScope();

                var userManager  =
                scope.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();

                TestingUser = new ApplicationUser
                {
                    UserName = testingUserName,
                    Email = testingUserName + "@example.com",
                    EmailConfirmed = true
                };

                var result = userManager.CreateAsync(TestingUser,"test").Result;

                Assert.True(result.Succeeded);

                ApplicationDbContext dbContext =
                scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
                TestingUser = dbContext.Users.FirstOrDefault(u => u.UserName == testingUserName);
            }
        }
    }
}