using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.IdentityModel.Logging;
using Microsoft.IdentityModel.Protocols.OpenIdConnect;
using Microsoft.IdentityModel.Tokens;
using Microsoft.Net.Http.Headers;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using Westwind.AspNetCore.LiveReload;

namespace OidcSamples.TaxApp
{
    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)
        {
            IdentityModelEventSource.ShowPII = true;

            // Dirty Hack: Disable verifying SSL certificates 😬
            ServicePointManager.ServerCertificateValidationCallback +=
                (sender, cert, chain, sslPolicyErrors) => true;

            services.AddRazorPages().AddRazorRuntimeCompilation();

            services.AddLiveReload(config =>
            {
                // optional - use config instead
                //config.LiveReloadEnabled = true;
                //config.FolderToMonitor = Path.GetFullname(Path.Combine(Env.ContentRootPath,"..")) ;
            });

            services.AddControllersWithViews();

            services.AddAuthentication(options =>
            {
                options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                options.DefaultChallengeScheme = OpenIdConnectDefaults.AuthenticationScheme;
            })
            .AddCookie(CookieAuthenticationDefaults.AuthenticationScheme)
            .AddOpenIdConnect(OpenIdConnectDefaults.AuthenticationScheme, options =>
            {
                options.SignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                options.Authority = "http://localhost:10000/";
                options.ClientId = "tax-asp-net-core-app";
                options.ResponseType = OpenIdConnectResponseType.Code;
                options.UsePkce = true;

                options.Scope.Add("traffic-police-api");
                options.Scope.Add("real-estate-api");
                options.Scope.Add("offline_access");
                options.Scope.Add("profile");
                options.Scope.Add("email");

                options.SaveTokens = true;
                options.ClientSecret = "secret";

                options.GetClaimsFromUserInfoEndpoint = true;

                options.TokenValidationParameters.NameClaimType = "name";

                options.RequireHttpsMetadata = false;
            });

            services.AddHttpContextAccessor();
            services.AddTransient<BearerTokenHandler>();

            // create an HttpClient used for accessing the API
            services.AddHttpClient("TP-APIClient", client =>
            {
                client.BaseAddress = new Uri("http://localhost:9000/");
                client.DefaultRequestHeaders.Clear();
                client.DefaultRequestHeaders.Add(HeaderNames.Accept, "application/json");
            }).AddHttpMessageHandler<BearerTokenHandler>();

            services.AddHttpClient("RE-APIClient", client =>
            {
                client.BaseAddress = new Uri("http://localhost:8000/");
                client.DefaultRequestHeaders.Clear();
                client.DefaultRequestHeaders.Add(HeaderNames.Accept, "application/json");
            }).AddHttpMessageHandler<BearerTokenHandler>();

            services.AddHttpClient("IDPClient", client =>
            {
                client.BaseAddress = new Uri("http://localhost:10000/");
                client.DefaultRequestHeaders.Clear();
                client.DefaultRequestHeaders.Add(HeaderNames.Accept, "application/json");
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            // IMPORTANT: Before **any other output generating middleware** handlers including error handlers
            app.UseLiveReload();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                // 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.UseCookiePolicy(new CookiePolicyOptions
            {
                MinimumSameSitePolicy = Microsoft.AspNetCore.Http.SameSiteMode.Lax
            });

            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();
            app.UseAuthorization();

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