using FluentValidation;
using Gameboard.ShogiUI.Sockets.Extensions;
using Gameboard.ShogiUI.Sockets.Managers;
using Gameboard.ShogiUI.Sockets.Managers.ClientActionHandlers;
using Gameboard.ShogiUI.Sockets.Repositories;
using Gameboard.ShogiUI.Sockets.ServiceModels.Socket.Messages;
using Gameboard.ShogiUI.Sockets.Services;
using Gameboard.ShogiUI.Sockets.Services.RequestValidators;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;
using System;
using System.Linq;
using System.Text;

namespace Gameboard.ShogiUI.Sockets
{
  public class Startup
  {
    public Startup(IConfiguration configuration)
    {
      Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
      // Socket ActionHandlers
      services.AddSingleton<ICreateGameHandler, CreateGameHandler>();
      services.AddSingleton<IJoinByCodeHandler, JoinByCodeHandler>();
      services.AddSingleton<IJoinGameHandler, JoinGameHandler>();
      services.AddSingleton<IListGamesHandler, ListGamesHandler>();
      services.AddSingleton<ILoadGameHandler, LoadGameHandler>();
      services.AddSingleton<IMoveHandler, MoveHandler>();

      // Managers
      services.AddSingleton<ISocketConnectionManager, SocketConnectionManager>();
      services.AddSingleton<ISocketTokenManager, SocketTokenManager>();
      services.AddSingleton<IGameboardManager, GameboardManager>();
      services.AddSingleton<IActiveSessionManager, ActiveSessionManager>();

      // Services
      services.AddSingleton<IValidator<CreateGameRequest>, CreateGameRequestValidator>();
      services.AddSingleton<IValidator<JoinByCodeRequest>, JoinByCodeRequestValidator>();
      services.AddSingleton<IValidator<JoinGameRequest>, JoinGameRequestValidator>();
      services.AddSingleton<IValidator<ListGamesRequest>, ListGamesRequestValidator>();
      services.AddSingleton<IValidator<LoadGameRequest>, LoadGameRequestValidator>();
      services.AddSingleton<IValidator<MoveRequest>, MoveRequestValidator>();
      services.AddSingleton<ISocketService, SocketService>();

      // Repositories
      services.AddHttpClient("couchdb", c =>
      {
        var base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes("admin:admin"));
        c.DefaultRequestHeaders.Add("Accept", "application/json");
        c.DefaultRequestHeaders.Add("Authorization", $"Basic {base64}");

        var baseUrl = $"{Configuration["AppSettings:CouchDB:Url"]}/{Configuration["AppSettings:CouchDB:Database"]}/";
        c.BaseAddress = new Uri(baseUrl);
      });
      services.AddTransient<IGameboardRepository, GameboardRepository>();
      //services.AddSingleton<IAuthenticatedHttpClient, AuthenticatedHttpClient>();
      //services.AddSingleton<ICouchClient>(provider => new CouchClient(databaseName, couchUrl));

      services.AddControllers();

      services
          .AddAuthentication(options =>
          {
            options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
            options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
          })
          .AddJwtBearer(options =>
          {
            options.Authority = "https://login.microsoftonline.com/9188040d-6c67-4c5b-b112-36a304b66dad/v2.0";
            options.Audience = "935df672-efa6-45fa-b2e8-b76dfd65a122";
            options.TokenValidationParameters.ValidateIssuer = true;
            options.TokenValidationParameters.ValidateAudience = true;
          });
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ISocketService socketConnectionManager)
    {
      var origins = new[] {
        "http://localhost:3000", "https://localhost:3000",
        "http://127.0.0.1:3000", "https://127.0.0.1:3000",
        "https://dev.lucaserver.space", "https://lucaserver.space"
      };
      var socketOptions = new WebSocketOptions();
      foreach (var o in origins)
        socketOptions.AllowedOrigins.Add(o);

      if (env.IsDevelopment())
      {
        app.UseDeveloperExceptionPage();
      }
      else
      {
        app.UseHsts();
      }
      app
          .UseRequestResponseLogging()
          .UseCors(
              opt => opt
                  .WithOrigins(origins)
                  .AllowAnyMethod()
                  .AllowAnyHeader()
                  .AllowCredentials()
          )
          .UseRouting()
          .UseAuthentication()
          .UseAuthorization()
          .UseWebSockets(socketOptions)
          .UseEndpoints(endpoints =>
          {
            endpoints.MapControllers();
          })
          .Use(async (context, next) =>
          {
            var isUpgradeHeader = context
              .Request
              .Headers
              .Any(h => h.Key.Contains("upgrade", StringComparison.InvariantCultureIgnoreCase)
                      && h.Value.ToString().Contains("websocket", StringComparison.InvariantCultureIgnoreCase));
            if (isUpgradeHeader)
            {
              await socketConnectionManager.HandleSocketRequest(context);
            }
            else
            {
              await next();
            }
          });

      JsonConvert.DefaultSettings = () => new JsonSerializerSettings
      {
        Formatting = Formatting.Indented,
        ContractResolver = new DefaultContractResolver
        {
          NamingStrategy = new CamelCaseNamingStrategy
          {
            ProcessDictionaryKeys = true
          }
        },
        Converters = new[] { new StringEnumConverter() },
        NullValueHandling = NullValueHandling.Ignore,
      };
    }
  }
}