using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Formatting;
using System.Net.Http.Headers;
using System.Web;
using System.Web.Http;
using System.Web.Http.WebHost;
using System.Web.Routing;
using System.Web.SessionState;

namespace Learun.Application.Web
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            //config.MapHttpAttributeRoutes();

            //config.Formatters.Remove(config.Formatters.XmlFormatter);//默认的XML格式，这样输出数据就会以json格式显示
            //var jsonFormatter = config.Formatters.JsonFormatter;
            //jsonFormatter.SerializerSettings.Formatting = Formatting.Indented; //将输出结果缩进显示
            //jsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();//将字段名称改成camelCase格式

            //config.Routes.MapHttpRoute(
            //    name: "DefaultApi",
            //    routeTemplate: "api/{controller}/{action}/{id}",
            //    defaults: new { id = RouteParameter.Optional }
            //);
            config.MapHttpAttributeRoutes();



            //Route上传递Session
            RouteTable.Routes.MapHttpRoute(
                    name: "DefaultApi",
                    routeTemplate: "api/{controller}/{action}/{id}",
                    defaults: new { id = RouteParameter.Optional }).RouteHandler = new SessionControllerRouteHandler();
            RouteTable.Routes.MapHttpRoute(
                  name: "AppApi",
                  routeTemplate: "api/{controller}/{action}/{id}",
                  defaults: new { id = RouteParameter.Optional }).RouteHandler = new SessionControllerRouteHandler();

            //格式化json数据中的时间的T
            var jsontimeset = GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings;
            jsontimeset.DateTimeZoneHandling = Newtonsoft.Json.DateTimeZoneHandling.Local;
            jsontimeset.DateFormatString = "yyyy-MM-dd HH:mm:ss";
            jsontimeset.DateFormatHandling = Newtonsoft.Json.DateFormatHandling.MicrosoftDateFormat;
        }

        //Session配置之WebApi支持(https://www.cnblogs.com/ca47/p/4603701.html)
        public class SessionRouteHandler : HttpControllerHandler, IRequiresSessionState
        {
            public SessionRouteHandler(RouteData routeData)
                : base(routeData)
            {
            }
        }
        public class SessionControllerRouteHandler : HttpControllerRouteHandler
        {
            protected override IHttpHandler GetHttpHandler(RequestContext requestContext)
            {
                return new SessionRouteHandler(requestContext.RouteData);
            }
        }

        public class JsonContentNegotiator : IContentNegotiator
        {
            private readonly JsonMediaTypeFormatter _jsonFormatter;

            public JsonContentNegotiator(JsonMediaTypeFormatter formatter)
            {
                _jsonFormatter = formatter;
            }

            public ContentNegotiationResult Negotiate(Type type, HttpRequestMessage request, IEnumerable<MediaTypeFormatter> formatters)
            {
                var result = new ContentNegotiationResult(_jsonFormatter, new MediaTypeHeaderValue("application/json"));
                return result;
            }
        }
    }
}