// Note: repository implementation removed for workshop exercise (TODOs in project files)
using Microsoft.AspNetCore.Diagnostics;
using Microsoft.AspNetCore.Mvc;

var builder = WebApplication.CreateBuilder(args);

// Add services
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(o =>
{
    o.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo
    {
        Title = "CampusWorkshops API",
        Version = "v1",
        Description = "API para gestão de workshops do campus (MVP in-memory)."
    });
});

// DI

var app = builder.Build();

// Exception handler that returns RFC7807 ProblemDetails for unhandled errors
app.UseExceptionHandler(errApp =>
{
    errApp.Run(async context =>
    {
        var feature = context.Features.Get<IExceptionHandlerFeature>();
        var ex = feature?.Error;

        var pd = new ProblemDetails
        {
            Title = "An unexpected error occurred.",
            Status = StatusCodes.Status500InternalServerError,
            Detail = app.Environment.IsDevelopment() ? ex?.Message : null
        };

        context.Response.StatusCode = pd.Status.Value;
        context.Response.ContentType = "application/problem+json";
        await context.Response.WriteAsJsonAsync(pd);
    });
});

app.UseHttpsRedirection();

app.UseSwagger();
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "CampusWorkshops API v1");
    c.RoutePrefix = "swagger"; // serve at /swagger
});

app.MapControllers();

app.Run();