using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.IdentityModel.Tokens;
using Teso_API.Models;
using Microsoft.Extensions.Configuration;
using System.Text;
using FirebaseAdmin;
using Google.Apis.Auth.OAuth2;
using Newtonsoft.Json;
using Teso_API.Methods;

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

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContextPool<TESOContext>(options => options.UseSqlServer(ServerLocation.connection));
            services.AddSingleton<ITokenService, TokenService>();
            services.AddControllersWithViews();
            services.AddRazorPages();
            services.ConfigureNonBreakingSameSiteCookies();
            services.AddCors(options =>
            {
                options.AddPolicy("CorsPolicy",
                    builder => builder.AllowAnyOrigin()
                    .AllowAnyMethod()
                    .AllowAnyHeader()
                    );
            });
            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddJwtBearer(options =>
                {
                    options.RequireHttpsMetadata = false;
                    options.SaveToken = true;
                    options.TokenValidationParameters = new TokenValidationParameters()
                    {
                        ValidateIssuer = true,
                        ValidateAudience = false,
                        ValidAudience = ServerLocation.audience,
                        ValidIssuer = ServerLocation.issuer,
                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"]))
                    };
                });

            var defaultApp = FirebaseApp.Create(new AppOptions()
            {
                Credential = GoogleCredential.FromJson(JsonConvert.SerializeObject(ServerLocation.credentials)),
            });
            services.AddMvc();
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            app.UseCors("CorsPolicy");
            app.UseRouting();

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

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