using FluentAssertions;
using IBKRTrader.Core.Modularity;
using IBKRTrader.Hosting.Web.Endpoints;
using IBKRTrader.Modules.CongressTrading;
using IBKRTrader.Modules.DebugTrading;
using IBKRTrader.Modules.OptionsWheel;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.DependencyInjection;

namespace IBKRTrader.Tests.Web;

[Trait("cat", "unit")]
public class ModuleEndpointsTests
{
    [Fact]
    public void Map_RegistersEndpoints_ForConfiguredModules()
    {
        var services = new ServiceCollection();
        services.AddSingleton<IModule>(new CongressTradingModule());
        services.AddSingleton<IModule>(new OptionsWheelModule());
        services.AddSingleton<IModule>(new DebugTradingModule());

        var sp = services.BuildServiceProvider();

        var builder = WebApplication.CreateBuilder();
        var app = builder.Build();
        var api = app.MapGroup("/api");

        // Act
        ModuleEndpoints.Map(api, sp);

        // Assert - Verify registered endpoints
        var routeBuilder = (IEndpointRouteBuilder)app;
        var patterns = routeBuilder.DataSources
            .SelectMany(ds => ds.Endpoints)
            .OfType<RouteEndpoint>()
            .Select(e => e.RoutePattern.RawText)
            .ToList();

        patterns.Should().Contain(p => p != null && p.Contains("/modules/congresstrading"));
        patterns.Should().Contain(p => p != null && p.Contains("/modules/optionswheel/status"));
        patterns.Should().Contain(p => p != null && p.Contains("/modules/optionswheel/underlyings"));
        patterns.Should().Contain(p => p != null && p.Contains("/modules/debugtrading/status"));
        patterns.Should().Contain(p => p != null && p.Contains("/modules/debugtrading/positions"));

        // Verify Supervisor is NOT registered
        patterns.Should().NotContain(p => p != null && p.Contains("/supervisor"));
    }

    [Fact]
    public void Map_DoesNotRegisterEndpoints_WhenModulesOmitted()
    {
        var services = new ServiceCollection();
        // Empty modules list
        var sp = services.BuildServiceProvider();

        var builder = WebApplication.CreateBuilder();
        var app = builder.Build();
        var api = app.MapGroup("/api");

        // Act
        ModuleEndpoints.Map(api, sp);

        // Assert - None of the module endpoints should be mapped
        var routeBuilder = (IEndpointRouteBuilder)app;
        var patterns = routeBuilder.DataSources
            .SelectMany(ds => ds.Endpoints)
            .OfType<RouteEndpoint>()
            .Select(e => e.RoutePattern.RawText)
            .ToList();

        patterns.Should().BeEmpty();
    }
}