using Akari.Prototype.Server.Options;
using Akari.Prototype.Server.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Akari.Prototype.Server
{
    public class Startup
    {
        public IConfiguration Configuration { get; }

        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        // 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)
        {
            services.AddGrpc();

            ConfigureStandardServices(Configuration, services);

            services.AddHostedService<TcpProviderService>();
            services.AddHostedService<AuthLifetimeService>();
        }

        public static void ConfigureStandardServices(IConfiguration configuration, IServiceCollection services)
        {
            services.AddOptions<TcpProviderOptions>()
                    .Bind(configuration.GetSection(TcpProviderOptions.SectionPath))
                    .ValidateDataAnnotations();

            services.AddOptions<AkariOptions>()
                    .Bind(configuration.GetSection(AkariOptions.SectionPath))
                    .ValidateDataAnnotations();

            services.AddSingleton<IFingerprintManager, FingerprintManager>();
            services.AddSingleton<IAuthManager, AuthManager>();
            services.AddSingleton<IKeyManager, KeyManager>();
            services.AddSingleton<IApplicationsManager, ApplicationsManager>();
            services.AddSingleton<IMasterKeyService, MasterKeyService>();
            services.AddSingleton<AkariPath>();
        }

        // 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();
            }

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapGrpcService<AkariService>();

                endpoints.MapGet("/", async context =>
                {
                    await context.Response.WriteAsync("Communication with gRPC endpoints must be made through a gRPC client. To learn how to create a client, visit: https://go.microsoft.com/fwlink/?linkid=2086909");
                });
            });
        }
    }
}