using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.SpaServices.AngularCli;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using Timeline.Configs;
using Timeline.Services;

namespace Timeline
{
    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)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

            // In production, the Angular files will be served from this directory
            services.AddSpaStaticFiles(configuration =>
            {
                configuration.RootPath = "ClientApp/dist";
            });


            services.Configure<JwtConfig>(Configuration.GetSection("JwtConfig"));
            var jwtConfig = Configuration.GetSection("JwtConfig").Get<JwtConfig>();

            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddJwtBearer(o =>
                {
                    o.TokenValidationParameters.ValidateIssuer = true;
                    o.TokenValidationParameters.ValidateAudience = true;
                    o.TokenValidationParameters.ValidateIssuerSigningKey = true;
                    o.TokenValidationParameters.ValidateLifetime = true;
                    o.TokenValidationParameters.ValidIssuer = jwtConfig.Issuer;
                    o.TokenValidationParameters.ValidAudience = jwtConfig.Audience;
                    o.TokenValidationParameters.IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(jwtConfig.SigningKey));
                });

            services.AddSingleton<IUserService, UserService>();
        }

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


            // When not in test environment, use https redirection.
            // Because I found some problems using https redirection in test mode.
            if (!env.IsTest())
                app.UseHttpsRedirection();


            app.UseStaticFiles();
            app.UseSpaStaticFiles();

            app.UseAuthentication();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller}/{action=Index}/{id?}");
            });

            app.UseSpa(spa =>
            {
                spa.Options.SourcePath = "ClientApp";

                if (env.IsDevelopment())
                {
                    spa.UseAngularCliServer(npmScript: "start");
                }
            });
        }
    }
}