Program.cs

using StrategyPatternExample.Services;
using StrategyPatternExample.Strategies;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo
    {
        Title = "Strategy Pattern Payment API",
        Version = "v1",
        Description = "API de exemplo demonstrando o padrão Strategy para métodos de pagamento"
    });
});

// Registrar todas as estratégias de pagamento
builder.Services.AddScoped<IPaymentStrategy, CreditCardPaymentStrategy>();
builder.Services.AddScoped<IPaymentStrategy, PayPalPaymentStrategy>();
builder.Services.AddScoped<IPaymentStrategy, BankSlipPaymentStrategy>();
builder.Services.AddScoped<IPaymentStrategy, PixPaymentStrategy>();

// Registrar o contexto de pagamento
builder.Services.AddScoped<PaymentContext>();

var app = builder.Build();

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

app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();

// Rota raiz que redireciona para o Swagger
app.MapGet("/", () => Results.Redirect("/swagger"));

app.Run();