/// <summary>
/// Add an authorization service instance.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="services"></param>
/// <param name="authorizationService"></param>
/// <returns></returns>
public static IServiceCollection AddAuthorization <T>(
this IServiceCollection services,
AuthorizationServiceOptionsBuilder builder)
where T : class, IAuthorizationService
{
// Add the authorization manager instance.
if (_authorizationManager == null)
{
_authorizationManager = new AuthorizationManager();
services.AddSingleton <IAuthorizationManager>(_authorizationManager);
}
// Register the service by interface.
services.AddSingleton <IAuthorizationService, T>();
// Get the options from the builder function.
AuthorizaationServiceOptions options = new AuthorizaationServiceOptions();
builder.Invoke(options);
// Create an instance of the service and configure.
IAuthorizationService instance = Activator.CreateInstance <T>();
instance.Configure(options);
// Add the instance to the AuthorizationServiceManager.
_authorizationManager.AddAuthorizationService(instance);
// Register the configured instance.
var serviceDescriptor = services.LastOrDefault();
services.Add(new ServiceDescriptor(serviceDescriptor.ImplementationType, instance));
// Return the IServiceCollection for chainability.
return(services);
}