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 System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.DataProtection;
using EveryThing.Models;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Connections;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Localization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using EveryThing.Data;
using Microsoft.AspNetCore.Authentication.Negotiate;
using Microsoft.AspNetCore.HttpOverrides;

namespace EveryThing
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            //services.Configure<ForwardedHeadersOptions>(options =>
            //{
            //    options.KnownProxies.Add(IPAddress.Parse("192.168.111.78"));
            //});

            // Database connection
            string connectionString = Configuration.GetConnectionString("DataConnection");
            services.AddDbContext<ApplicationDbContext>(options => options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString)));
            //services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DataConnection")));

            // Session
            services.AddSession(options =>
            {
                options.IdleTimeout = TimeSpan.FromMinutes(15);
                options.Cookie.HttpOnly = true;
                options.Cookie.IsEssential = true;
                options.Cookie.MaxAge = TimeSpan.FromHours(3);
            });

            // JWT
            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options =>
            {
                options.SaveToken = true;
                options.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuer = true,
                    ValidateAudience = true,
                    ValidateLifetime = true,
                    ValidateIssuerSigningKey = true,
                    ValidIssuer = "EveryThing",
                    ValidAudience = "Android",
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes("!Appli$cation#9999#!"))
                };
            });

            // Identity
            services.AddIdentity<IdentityApplicationUser, IdentityApplicationRole>().AddEntityFrameworkStores<ApplicationDbContext>().AddDefaultTokenProviders();

            services.AddRazorPages(options =>
            {
                //options.Conventions.AddPageRoute("/Administration/Users", "/AdministrationUsers");
            }).AddRazorRuntimeCompilation();

            //services.Configure<ForwardedHeadersOptions>(options =>
            //{
            //    options.ForwardedHeaders =
            //        ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
            //    options.KnownProxies.Add(IPAddress.Parse("192.168.111.78"));
            //    //options.ForwardedForHeaderName = "X-Forwarded-For-My-Custom-Header-Name";
            //});

            services.AddAntiforgery(o => o.HeaderName = "XSRF-TOKEN");

            services.Configure<IdentityOptions>(options =>
            {
                // Password settings
                options.Password.RequireDigit = true;
                options.Password.RequireLowercase = true;
                options.Password.RequireNonAlphanumeric = true;
                options.Password.RequireUppercase = true;
                options.Password.RequiredLength = 8;
                options.Password.RequiredUniqueChars = 1;

                // Lockout settings
                options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5);
                options.Lockout.MaxFailedAccessAttempts = 3;
                options.Lockout.AllowedForNewUsers = true;

                // User settings
                options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
                options.User.RequireUniqueEmail = true;
            });
            
            services.ConfigureApplicationCookie(options =>
            {
                // Cookie
                options.Cookie.MaxAge = TimeSpan.FromHours(3);
                options.Cookie.HttpOnly = true;
                options.SlidingExpiration = true;
                options.Cookie.SecurePolicy = CookieSecurePolicy.None;//Samo unencripted na locas

                options.LoginPath = $"/User/Login";
                options.LogoutPath = $"/User/Logout";
                options.AccessDeniedPath = $"/";
                options.ExpireTimeSpan = TimeSpan.FromMinutes(15);//Povecano na 15min
            });

            services.AddDistributedMemoryCache();

            services.Configure<IISOptions>(options =>
            {
                options.AutomaticAuthentication = false;
            });
            
            services.AddDataProtection().SetApplicationName("EveryThing").PersistKeysToFileSystem(new DirectoryInfo(@"Keys/"));

            //services.AddHttpsRedirection(options =>
            //{
            //    options.RedirectStatusCode = (int)HttpStatusCode.PermanentRedirect;
            //    options.HttpsPort = 443;
            //});
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                //app.UseForwardedHeaders();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                //app.UseForwardedHeaders();
                app.UseHsts();
            }

            //app.UseForwardedHeaders(new ForwardedHeadersOptions
            //{
            //    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
            //});


            var defaultCulture = new CultureInfo("sl-SI");
            var localizationOptions = new RequestLocalizationOptions
            {
                DefaultRequestCulture = new RequestCulture(defaultCulture),
                SupportedCultures = new List<CultureInfo> { defaultCulture },
                SupportedUICultures = new List<CultureInfo> { defaultCulture }
            };
            app.UseRequestLocalization(localizationOptions);

            //app.UseHttpsRedirection();
            app.UseStaticFiles();
            app.UseCookiePolicy();
            
            app.UseRouting();
            app.UseAuthentication();
            app.UseAuthorization();

            app.UseSession();

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