// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Net.Http;
using System.Net.Http.Formatting;
using Microsoft.Framework.OptionsModel;

namespace Microsoft.AspNet.Mvc.WebApiCompatShim
{
    public class WebApiCompatShimOptionsSetup
        : IConfigureOptions<MvcOptions>, IConfigureOptions<WebApiCompatShimOptions>
    {
        public static readonly string DefaultAreaName = "api";

        public int Order
        {
            // We want to run after the default MvcOptionsSetup.
            get { return DefaultOrder.DefaultFrameworkSortOrder + 100; }
        }

        public string Name { get; set; }

        public void Configure(MvcOptions options, string name = "")
        {
            // Add webapi behaviors to controllers with the appropriate attributes
            options.Conventions.Add(new WebApiActionConventionsApplicationModelConvention());
            options.Conventions.Add(new WebApiParameterConventionsApplicationModelConvention());
            options.Conventions.Add(new WebApiOverloadingApplicationModelConvention());
            options.Conventions.Add(new WebApiRoutesApplicationModelConvention(area: DefaultAreaName));

            // Add an action filter for handling the HttpResponseException.
            options.Filters.Add(new HttpResponseExceptionActionFilter());

            // Add a model binder to be able to bind HttpRequestMessage
            options.ModelBinders.Insert(0, new HttpRequestMessageModelBinder());

            // Add a formatter to write out an HttpResponseMessage to the response
            options.OutputFormatters.Insert(0, new HttpResponseMessageOutputFormatter());

            options.ValidationExcludeFilters.Add(typeof(HttpRequestMessage));
            options.ValidationExcludeFilters.Add(typeof(HttpResponseMessage));
        }

        public void Configure(WebApiCompatShimOptions options, string name = "")
        {
            // Add the default formatters
            options.Formatters.AddRange(new MediaTypeFormatterCollection());
        }
    }
}