using System;
using System.Collections.Generic;

namespace ln.http.resources
{
    public class ResourceApplication : HttpApplication
    {
        public Resource RootResource { get; set; }

        public ResourceApplication()
        {
            RootResource = new BaseResource("");
        }

        public override HttpResponse GetResponse(HttpRequest httpRequest)
        {
            /* TODO: Implement Authentication here... */


            Resource currentResource = RootResource;
            Queue<String> pathStack = new Queue<String>(httpRequest.URI.AbsolutePath.Split(new String[] { "/" }, StringSplitOptions.RemoveEmptyEntries));

            while ((pathStack.Count > 0) && (!currentResource.HandlesDispatching))
            {
                String next = pathStack.Dequeue();

                if (!currentResource.Contains(next))
                    throw new KeyNotFoundException();

                currentResource = currentResource.GetResource(next);

                /* TODO: Implement Authorization hook here... */
            }

            return currentResource.GetResponse(httpRequest,pathStack);
        }
    }
}