using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.HttpsPolicy;
// using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Microsoft.IdentityModel.Tokens;
using WK_KLI_LAPS_COMMONTOOL_Service.Controllers.Master.User;
using WK_KLI_LAPS_COMMONTOOL_Service.Hub;
using WK_KLI_LAPS_COMMONTOOL_Service.Models;

namespace WK_KLI_LAPS_COMMONTOOL_Service
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                  .SetBasePath(env.ContentRootPath)
                  .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);

            Configuration = builder.Build();
            //Configuration = configuration;
        }

        static public IConfigurationRoot Configuration { get; set; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddCors();

            services.AddControllers();
            //services.AddCors(options =>
            //{
            //    options.AddPolicy("CorsPolicy",
            //        builder => builder.AllowAnyOrigin()
            //        .AllowAnyMethod()
            //        .AllowAnyHeader()
            //        .AllowCredentials());
            //});
            services.AddCors(options =>
            {
                options.AddPolicy("CorsPolicy", builder =>
                    builder.SetIsOriginAllowed(_ => true)
                    .AllowAnyMethod()
                    .AllowAnyHeader()
                    .AllowCredentials());
            });

            services.AddSignalR();
            services.AddMvc();

            services.AddSingleton<IConfiguration>(Configuration);

            // configure strongly typed settings objects
            var appSettingsSection = Configuration.GetSection("AppSettings");
            services.Configure<Appsettings>(appSettingsSection);



            // configure jwt authentication
            var appSettings = appSettingsSection.Get<Appsettings>();

            //hangfire

            //services.AddHangfire(config =>
            //     config.UsePostgreSqlStorage(appSettings.ConnectionStringSchedule));

            var key = Encoding.ASCII.GetBytes(appSettings.Secret);
            services.AddAuthentication(x =>
            {
                x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
            })
            .AddJwtBearer(x =>
            {
                x.Events = new JwtBearerEvents
                {
                    OnTokenValidated = context =>
                    {
                        var userService = context.HttpContext.RequestServices.GetRequiredService<IUserService>();
                        var userId = int.Parse(context.Principal.Identity.Name);
                        var user = userService.GetById(userId);
                        if (user == null)
                        {
                            // return unauthorized if user no longer exists
                            context.Fail("Unauthorized");
                        }
                        return Task.CompletedTask;
                    }
                };
                x.RequireHttpsMetadata = false;
                x.SaveToken = true;
                x.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuerSigningKey = true,
                    IssuerSigningKey = new SymmetricSecurityKey(key),
                    ValidateIssuer = false,
                    ValidateAudience = false
                };
            });
            services.AddHttpContextAccessor();
            //// configure DI for application services
            services.AddScoped<IUserService, UserService>();
           

           // services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
           
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            //if (env.IsDevelopment())
            //{
            //    app.UseDeveloperExceptionPage();
            //}
            //else
            //{
            //    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            //    app.UseHsts();
            //}

            //app.UseHttpsRedirection();
            //app.UseMvc();
            app.Use(async (ctx, next) =>
            {
                await next();
                if (ctx.Response.StatusCode == 204)
                {
                    ctx.Response.ContentLength = 0;
                }
            });
          //  app.UseCors("CorsPolicy");
            app.UseSignalR(routes =>
            {
                routes.MapHub<AuthHub>("/authhub");
            });
            //if (env.IsDevelopment())
            //{
            //    app.UseDeveloperExceptionPage();
            //}
            //else
            //{
            //    app.UseHsts();
            //}
            WK_KLI_LAPS_COMMONTOOL_Service.App_Data.AppContext.Configure(app.ApplicationServices.GetRequiredService<IHttpContextAccessor>());
            app.UseAuthentication();
            app.UseHttpsRedirection();
            // app.UseMvc();
            app.UseRouting();
            app.UseCors("CorsPolicy");

            app.UseAuthorization();
            app.UseEndpoints(endpoints => { endpoints.MapControllers(); });
        }
    }
}