// /**
//  * File: MyClass.cs
//  * Author: haraldwolff
//  *
//  * This file and it's content is copyrighted by the Author and / or copyright holder.
//  * Any use wihtout proper permission is illegal and may lead to legal actions.
//  *
//  *
//  **/
using System;
using ln.http;
using ln.http.router;
using ln.manage;
using System.Linq;
using ln.json;
using ln.json.mapping;

namespace ln.manage.http
{
    public class ContainerRouter : SimpleRouter
    {
        IManagedContainer ManagedContainer { get; }

        public ContainerRouter(IManagedContainer managedContainer)
        {
            ManagedContainer = managedContainer;
            Sync();
        }
                 
        public void Sync()
        {
            foreach (SimpleRoute simpleRoute in Routes)
                Remove(simpleRoute);

            Sync(ManagedContainer);
        }
        void Sync(IManagedContainer container)
        {
            string cpath = String.Join("/", container.GetContainerPath());
            Console.WriteLine(cpath);

            AddSimpleRoute(cpath, new ContainerTarget(container));
            AddSimpleRoute(String.Concat(cpath, "/_/:name"), new EntityTarget(container));

            foreach (IManagedContainer child in container.Children)
                Sync(child);
        }


        class ContainerTarget : RouterTarget
        {
            IManagedContainer Container { get; }

            public ContainerTarget(IManagedContainer container)
            {
                Container = container;
            }


            public override HttpResponse GET(HttpRequest request)
            {
                HttpResponse response = new HttpResponse(request);
                response.SetHeader("content-type", "application/json");

                JSONArray jlist = new JSONArray();

                foreach (IManagedObject managedObject in Container.GetManagedObjects())
                {
                    jlist.Add(EntityTarget.MO2Json(managedObject));
                }

                response.ContentWriter.Write(jlist.ToString());
                response.ContentWriter.Flush();

                return response;
            }

            public override HttpResponse PROPFIND(HttpRequest request)
            {
                HttpResponse response = new HttpResponse(request);
                response.SetHeader("content-type", "application/json");
                response.ContentWriter.Write(Describe(Container).ToString());
                response.ContentWriter.Flush();
                return response;
            }

            public static JSONObject Describe(IManagedContainer container)
            {
                JSONObject jcontainer = new JSONObject();
                jcontainer["path"] = String.Join("/", container.GetContainerPath());
                jcontainer["name"] = container.Name;

                JSONObject jproperties = new JSONObject();
                foreach (PropertyDescriptor propertyDescriptor in container.PropertyDescriptors)
                {
                    jproperties[propertyDescriptor.PropertyName] = propertyDescriptor.CreateJsonDescriptor();
                }

                jcontainer["properties"] = jproperties;

                JSONArray jchildren = new JSONArray();
                foreach (IManagedContainer child in container.Children)
                    jchildren.Add(Describe(child));
                jcontainer["children"] = jchildren;

                return jcontainer;
            }

        }

        class EntityTarget : RouterTarget
        {
            IManagedContainer Container { get; }

            public EntityTarget(IManagedContainer container)
            {
                Container = container;
            }

            public override HttpResponse GET(HttpRequest request)
            {
                HttpResponse response = new HttpResponse(request);
                IManagedObject managedObject = Container.GetManagedObject(request.GetParameter("name"));
                response.SetHeader("content-type", "application/json");
                response.ContentWriter.Write(MO2Json(managedObject).ToString());
                response.ContentWriter.Flush();
                return response;
            }

            public static JSONObject MO2Json(IManagedObject managedObject)
            {
                JSONObject jmo = new JSONObject();
                jmo["source"] = String.Join("/", managedObject.Container.GetContainerPath());
                JSONObject jprops = new JSONObject();

                foreach (PropertyDescriptor propertyDescriptor in managedObject.Container.PropertyDescriptors)
                {
                    jprops[propertyDescriptor.PropertyName] = JSONMapper.DefaultMapper.ToJson(managedObject.GetValue(propertyDescriptor.PropertyName));
                }

                jmo["properties"] = jprops;
                return jmo;
            }
        }
    }
}