using OpenTelemetry.Resources;
using OpenTelemetry.Trace;
using Serilog;
using Serilog.Events;
using Serilog.Sinks.OpenTelemetry;

namespace Presentation
{
    public class Program
    {
        public static void Main(string[] args)
        {
            // Configura Serilog como logger global antes de crear el builder
            Log.Logger = new LoggerConfiguration()
                .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
                .Enrich.FromLogContext()
                .WriteTo.Console()
                .WriteTo.OpenTelemetry(options =>
                {
                    options.Endpoint = "http://localhost:4317"; // OTLP endpoint
                    options.Protocol = OtlpProtocol.Grpc;
                    options.ResourceAttributes = new Dictionary<string, object>
                    {
                        ["service.name"] = "mmorales.photo-backend"
                    };
                })
                .CreateLogger();

            try
            {
                Log.Information("Starting up");
                var builder = WebApplication.CreateBuilder(args);
                builder.Host.UseSerilog(); // Usa Serilog como proveedor de logs por defecto

                builder.Services.AddProblemDetails(options =>
                    options.CustomizeProblemDetails =
                        ctx => ctx.ProblemDetails.Extensions.Add("traceId", ctx.HttpContext.TraceIdentifier)
                );
                builder.Services.AddOpenTelemetry()
                .WithTracing(tracerProviderBuilder =>
                {
                    tracerProviderBuilder
                        .SetResourceBuilder(ResourceBuilder.CreateDefault()
                            .AddService(builder.Environment.ApplicationName))
                        .AddAspNetCoreInstrumentation()  // Traza todas las peticiones HTTP entrantes
                        .AddHttpClientInstrumentation()  // Traza las llamadas HttpClient salientes
                        .AddOtlpExporter(opt =>
                        {
                            opt.Endpoint = new Uri("http://localhost:4317"); // Dirección del colector OTel
                        })
                        .AddConsoleExporter(); // Exporta trazas también a consola para desarrollo
                });
                // Add services to the container.

                builder.Services.AddControllers();
                // Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
                builder.Services.AddOpenApi();

                var app = builder.Build();
                if (!app.Environment.IsDevelopment())
                {
                    app.UseExceptionHandler();
                    app.UseHsts();
                }
                app.UseStatusCodePages();

                app.UseAuthentication();  // Habilita autenticación
                app.UseAuthorization();   // Habilita autorización

                // Configure the HTTP request pipeline.
                if (app.Environment.IsDevelopment())
                {
                    app.MapOpenApi();
                }

                app.UseHttpsRedirection();

                app.UseAuthorization();


                app.MapControllers();

                app.Run();
            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "Application start-up failed");
                throw;
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }
    }
}