using System;
using System.IO;
using Nancy;
using Nancy.Bootstrapper;
using Nancy.Bootstrappers.StructureMap;
using Nancy.Json;
using Newtonsoft.Json;
using Sony.Filtr.ErrorLogging;
using StructureMap;

namespace Sony.Filtr.API.Nancy.Config
{
    public class CustomBootstrapper : StructureMapNancyBootstrapper
    {
        protected override IContainer GetApplicationContainer()
        {
            var container = new Sony.Filtr.Bootstrap.Bootstrapper().InitializeAsync().Result;

            container.Configure(config => config.For<JsonSerializer>().Use<CustomJsonSerializer>());

            return container;
        }

        protected override void ApplicationStartup(IContainer container, IPipelines pipelines)
        {
            JsonSettings.MaxJsonLength = Int32.MaxValue;

            InitializeErrorLogging(container, pipelines);

            base.ApplicationStartup(container, pipelines);
        }

        private static void InitializeErrorLogging(IContainer container, IPipelines pipelines)
        {
            var errorLoggingManager = container.GetInstance<ErrorLoggingManager>();
            pipelines.OnError.AddItemToEndOfPipeline((context, exception) =>
            {
                var statusException = exception as NancyStatusException;
                if (statusException != null)
                {
                    context.Response = new Response() {StatusCode = statusException.StatusCode};
                    return null;
                }

                errorLoggingManager.LogError(exception);
                return null;
            });
        }
    }
}