/// <summary>
/// Setup the Engine registrations in the DI container. This method will not scan
/// for handler classes in your solution, you must have them registered already
/// before calling this method.
/// </summary>
/// <typeparam name="TEnvironment"></typeparam>
/// <param name="services"></param>
/// <param name="build"></param>
/// <param name="getProvider"></param>
/// <returns></returns>
public static IServiceCollection SetupEngineScannerless <TEnvironment>(this IServiceCollection services, Action <IEngineBuilder> build, Func <IServiceProvider> getProvider)
where TEnvironment : class
{
// Setup a custom resolver for manually-specified types, and use that in the
// buildup
var handlersBuilder = new HandlerSetup();
var builder = new EngineBuilder(handlers: handlersBuilder);
build?.Invoke(builder);
EngineBuilder.SetupEngineRegistrations(services);
EngineBuilder.SetupExplicitEnvironmentRegistration <TEnvironment>(services);
// Setup a Handler Source to resolve handler instances from the provider
var registeredHandlerSource = new MicrosoftRegisteredHandlerSource(services, getProvider, TypeVerbExtractor.DefaultInstance);
handlersBuilder.AddSource(registeredHandlerSource);
// Build up the final Engine registrations. This involves resolving some
// dependencies which were setup previously
builder.BuildUp(services);
return(services);
}