using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AlertWebAPI.Models;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Microsoft.IdentityModel.Tokens;

namespace AlertWebAPI
{
    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.AddDbContext<AlertDbContext>(opt => opt.UseInMemoryDatabase("AlertItems"));

            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) //register authentication schema
                .AddJwtBearer(options =>
                {
                    options.TokenValidationParameters = new TokenValidationParameters
                    {
                        ValidateIssuer = true, //validate the server that created that token
                        ValidateAudience = true, //ensure that the recipient of the token is authorized to receive it 
                        ValidateLifetime = true, //check that the token is not expired and that the signing key of the issuer is valid
                        ValidateIssuerSigningKey = true, //verify that the key used to sign the incoming token is part of a list of trusted keys
                        ValidIssuer = Configuration["Jwt:Issuer"], // specify the value for the issuer
                        ValidAudience = Configuration["Jwt:Issuer"], // specify the value for the audience
                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"])) // specify the value for the signing key
                    };
                });



            services.AddMvc();
        }

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

            app.UseMvc();
        }
    }
}