namespace SecretStoreConfigurationProviderSample
{
    using System.Text.Json;
    using System.Threading.Tasks;
    using Microsoft.AspNetCore.Builder;
    using Microsoft.AspNetCore.Hosting;
    using Microsoft.AspNetCore.Http;
    using Microsoft.Extensions.Configuration;
    using Microsoft.Extensions.Hosting;
    using Microsoft.Extensions.DependencyInjection;

    /// <summary>
    /// Startup class.
    /// </summary>
    public class Startup
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="Startup"/> class.
        /// </summary>
        /// <param name="configuration">Configuration.</param>
        public Startup(IConfiguration configuration)
        {
            this.Configuration = configuration;
        }

        /// <summary>
        /// Gets the configuration.
        /// </summary>
        public IConfiguration Configuration { get; }

        /// <summary>
        /// Configures Services.
        /// </summary>
        /// <param name="services">Service Collection.</param>
        public void ConfigureServices(IServiceCollection services)
        {

        }

        /// <summary>
        /// Configures Application Builder and WebHost environment.
        /// </summary>
        /// <param name="app">Application builder.</param>
        /// <param name="env">Webhost environment.</param>
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapGet("secret", Secret);
            });

            async Task Secret(HttpContext context)
            {
                // Get secret from configuration!!!
                var secretValue = Configuration["super-secret"];

                context.Response.ContentType = "application/json";
                await JsonSerializer.SerializeAsync(context.Response.Body, secretValue);
            }
        }
    }
}