using Microsoft.EntityFrameworkCore;
using Serilog;
using FluentValidation;
using GestorFacturas.API.Data;
using GestorFacturas.API.Services;
using GestorFacturas.API.Services.Interfaces;
using GestorFacturas.API.Workers;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;

var builder = WebApplication.CreateBuilder(args);
// ===== CONFIGURAR SERILOG (LIMPIO PARA PRODUCCIÓN) =====
Log.Logger = new LoggerConfiguration()
    .ReadFrom.Configuration(builder.Configuration) // Lee filtros del appsettings
    .WriteTo.Console() // ÚNICA SALIDA: Consola (para que Docker/Grafana lo recojan)
    .CreateLogger();

builder.Host.UseSerilog();
// ===== SERVICIOS =====
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
// Entity Framework
builder.Services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(
builder.Configuration.GetConnectionString("DefaultConnection"),
sqlOptions => sqlOptions.EnableRetryOnFailure()
)
);
// Auth Service
builder.Services.AddScoped<AuthService>();
// Servicio de Encriptación
builder.Services.AddScoped<IEncryptionService, EncryptionService>();
// JWT Configuration
var jwtKey = builder.Configuration["Jwt:Key"] ?? throw new InvalidOperationException("JWT Key missing");
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
    options.TokenValidationParameters = new TokenValidationParameters
    {
        ValidateIssuer = true,
        ValidateAudience = true,
        ValidateLifetime = true,
        ValidateIssuerSigningKey = true,
        ValidIssuer = builder.Configuration["Jwt:Issuer"],
        ValidAudience = builder.Configuration["Jwt:Audience"],
        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtKey))
    };
});
// FluentValidation
builder.Services.AddValidatorsFromAssemblyContaining<Program>();
// Business Services
builder.Services.AddScoped<IMailService, MailService>();
builder.Services.AddScoped<IProcesadorFacturasService, ProcesadorFacturasService>();
// Background Service
builder.Services.AddHostedService<CronogramaWorker>();
// CORS
builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowReactApp", policy =>
    {
        policy.WithOrigins("http://localhost:5173", "http://localhost:3000", "http://localhost:80")
    .AllowAnyMethod()
    .AllowAnyHeader()
    .AllowCredentials();
    });
});
var app = builder.Build();
// Migraciones Automáticas
using (var scope = app.Services.CreateScope())
{
    try
    {
        var context = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
        await context.Database.MigrateAsync();
        Log.Information("Base de datos migrada correctamente");
    }
    catch (Exception ex)
    {
        Log.Error(ex, "Error al aplicar migraciones de base de datos");
    }
}
// Middleware Pipeline
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}
app.UseSerilogRequestLogging();
app.UseHttpsRedirection();
app.UseCors("AllowReactApp");
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
try
{
    Log.Information("Aplicación Gestor de Facturas iniciada");
    app.Run();
}
catch (Exception ex)
{
    Log.Fatal(ex, "La aplicación terminó inesperadamente");
}
finally
{
    Log.CloseAndFlush();
}