using JobsJobsJobs.Server.Data;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.IdentityModel.Tokens;
using NodaTime;
using NodaTime.Serialization.SystemTextJson;
using Npgsql;
using System.Text;
using System.Threading.Tasks;

namespace JobsJobsJobs.Server
{
    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.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            // TODO: configure JSON serialization for NodaTime
            services.AddDbContext<JobsDbContext>(options =>
            {
                options.UseNpgsql(Configuration.GetConnectionString("JobsDb"), o => o.UseNodaTime());
#if DEBUG
                options.LogTo(System.Console.WriteLine, Microsoft.Extensions.Logging.LogLevel.Information);
#endif
            });
            services.AddSingleton<IClock>(SystemClock.Instance);
            services.AddLogging();
            services.AddControllersWithViews();
            services.AddRazorPages()
                .AddJsonOptions(options =>
                    options.JsonSerializerOptions.ConfigureForNodaTime(DateTimeZoneProviders.Tzdb));
            services.AddAuthentication(options =>
            {
                options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
                options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
            }).AddJwtBearer(options =>
            {
                options.RequireHttpsMetadata = false;
                options.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuer = true,
                    ValidateAudience = true,
                    ValidAudience = "https://noagendacareers.com",
                    ValidIssuer = "https://noagendacareers.com",
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(
                        Configuration.GetSection("Auth")["ServerSecret"]))
                };
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            NpgsqlConnection.GlobalTypeMapper.UseNodaTime();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseWebAssemblyDebugging();
            }
            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.UseHttpsRedirection();
            app.UseBlazorFrameworkFiles();
            app.UseStaticFiles();
            app.UseRouting();
            app.UseAuthentication();
            app.UseAuthorization();

            static Task send404(HttpContext context)
            {
                context.Response.StatusCode = StatusCodes.Status404NotFound;
                return Task.FromResult(0);
            }

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapRazorPages();
                endpoints.MapControllers();
                endpoints.MapFallback("api/{**slug}", send404);
                endpoints.MapFallbackToPage("{**slug}", "/_Host");
            });
        }
    }
}