using System.Collections.Immutable;
using Connected.Annotations;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;

[assembly: MicroService(MicroServiceType.Runtime)]

namespace Connected.Rest;

internal class RestStartup : Startup
{
	protected override void OnConfigureServices(IServiceCollection services)
	{
		services.AddSingleton(typeof(IApiResolutionService), typeof(ApiResolutionService));
	}

	protected override void OnConfigure(WebApplication app)
	{
		RegisterRoutes(app);
	}

	private void RegisterRoutes(WebApplication app)
	{
		if (app.Services.GetService<IApiResolutionService>() is not IApiResolutionService resolution)
			return;

		if (resolution.QueryRoutes() is not ImmutableList<Tuple<string, ServiceMethodVerbs>> routes || !routes.Any())
			return;

		foreach (var route in routes)
		{
			app.Map(route.Item1, async (httpContext) =>
			{
				try
				{
					using var handler = new ApiServiceRequestDelegate(httpContext);

					await handler.InvokeAsync();

				}
				catch
				{
					//TODO: log exception
					throw;
				}
			});
		}
	}
}