using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using Glimpse.Core;

using Glimpse.Core.Extensibility;

using Glimpse.Core.Extensions;

using Glimpse.Mvc3.Plumbing;



namespace Glimpse.Mvc3.Plugin

{

    [GlimpsePlugin(ShouldSetupInInit = true)]

    internal class Views : IGlimpsePlugin, IProvideGlimpseHelp

    {

        public string Name

        {

            get { return "Views"; }

        }



        public object GetData(HttpContextBase context)

        {

            var store = context.Items;

            var data = store[GlimpseConstants.ViewEngine] as IList<GlimpseViewEngineCallMetadata>;

            if (data == null) return null;



            var result = new List<object[]>

                             {

                                 new[]

                                     {

                                         "Ordinal", "Requested View", "Master Override", "Partial", "View Engine",

                                         "Check Cache", "Found", "Details"

                                     }

                             };





            foreach (var callMetadata in data)

            {

                bool isFound = true;

                string viewEngineName = callMetadata.ViewEngineName;

                var locations = new List<object[]> {new[] {"Not Found In"}};



                if (callMetadata.ViewEngineResult.View == null)

                {

                    isFound = false;



                    if (callMetadata.UseCache)

                        locations.Add(new object[] {"_" + viewEngineName + " cache_"});

                    else

                        locations.AddRange(

                            callMetadata.ViewEngineResult.SearchedLocations.Select(location => new object[] {location}));



                    result.Add(new object[]

                                   {

                                       result.Count, callMetadata.ViewName, callMetadata.MasterName,

                                       callMetadata.IsPartial.ToString(), viewEngineName,

                                       callMetadata.UseCache.ToString(), isFound.ToString(), locations

                                   });

                }

                else

                {

                    object model = null;



                    if (callMetadata.GlimpseView != null)

                    {

                        var viewContext = callMetadata.GlimpseView.ViewContext;

                        object modelResult = null;

                        var vd = viewContext.ViewData.Flatten();

                        var td = viewContext.TempData.Flatten();

                        var vm = viewContext.ViewData.Model;



                        if (vm != null) modelResult = new {ModelType = vm.GetType().ToString(), Value = vm};



                        model = new

                                    {

                                        ViewData = vd.Count > 0 ? vd : null,

                                        Model = vm != null ? modelResult : null,

                                        TempData = td.Count > 0 ? td : null,

                                    };

                    }



                    result.Add(new[]

                                   {

                                       result.Count, callMetadata.ViewName, callMetadata.MasterName,

                                       callMetadata.IsPartial.ToString(), viewEngineName,

                                       callMetadata.UseCache.ToString(), isFound.ToString(), model, "selected"

                                   });

                }

            }



            return result;

        }



        public void SetupInit()

        {

            var engines = ViewEngines.Engines;



            for (var i = 0; i < engines.Count; i++)

            {

                if (!(engines[i] is GlimpseViewEngine))

                    engines[i] = new GlimpseViewEngine(engines[i]);

            }

        }



        public string HelpUrl

        {

            get { return "http://getGlimpse.com/Help/Plugin/Views"; }

        }

    }

}