using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using NHibernate;
using NHibernate.Linq;
using Sleis.Models;
using Sleis.ViewModels;
using Sleis.Infrastructure;
using Sleis.Service;
using Sleis.Utility;
using Sleis.Validation;
using Sleis.Validation.Attribute;
using System.Text;
using Sleis.EpaLookupStratgy;
using System.Reflection;
namespace Sleis.Controllers
{
    [HandleError]
    public class LookupController : BaseController
    {

        public override void Init()
        {
            base.Init();
        }

		//For Brandon to fix! - Caching
		[HttpGet]
		public JsonResult GetEmissionCalculationMethods()
		{
            //TODO: Might want to cache this.  Although right now doesn't seem too critical.
			List<EpaEmissionCalculationMethod> result;
			using (ISession session = SessionFactoryProvider.SessionFactory.OpenSession())
			{
				result = (from d in session.Query<EpaEmissionCalculationMethod>()
						select (d)).ToList<EpaEmissionCalculationMethod>();
			}
			return Json(result, JsonRequestBehavior.AllowGet);
		}

        [HttpGet]
        public JsonResult Get(string type, string query, int year, int size = 10)
        {
            ListView<SimpleLookupItem> domain = new ListView<SimpleLookupItem>();

            if (!String.IsNullOrEmpty(type))
            {
                domain.List = LookupUtility.GetLike(type, query, size, year);
                if (domain.List == null || domain.List.Count == 0)
                {
                  IEpaLookup lookup =  EpaLookupFactory.GetInstance(type);
                  if (lookup != null)
                  {
                      //lookup.LoadList(); was causing list to get loaded twice.
                      domain.List = LookupUtility.GetLike(type, query, size, year);
                  }
                  else
                  {
                      domain.List = LookupUtility.GetLike(type, query, size, year);
                  }
                } 
            }

            return Json(domain, JsonRequestBehavior.AllowGet);

        }

        [HttpGet]
        public JsonResult GetCustomQuery(string type, string query, int? year, int size = 10, int facilityId=0, int reportId=0)
        {
            ListView<SimpleLookupItem> domain = new ListView<SimpleLookupItem>();
            if (!String.IsNullOrEmpty(type) && !String.IsNullOrEmpty(query))
            {
                domain.List = PageService.GetSimpleLookupItemByCustomQuery(type, query, facilityId, reportId); //note query is the search term. type will be the queryName
				domain.List = domain.List.Take<SimpleLookupItem>(size).ToList<SimpleLookupItem>(); // reduce to requested number of results.
            }
            return Json(domain, JsonRequestBehavior.AllowGet);
        }

		[HttpGet]
		public JsonResult GetScc(string type, string levelOne, string levelTwo, string levelThree, int year=0)
		{
            ListView<SimpleLookupItem> domain = new ListView<SimpleLookupItem>();
            if (year == 0)
                year = DateTime.Now.Year;

			if (!String.IsNullOrEmpty(type))
			{
				domain.List = PageService.GetSimpleLookupItemForScc(type, levelOne, levelTwo, levelThree, year); 
			}
            /*//check if master inventory and filter out bad years
            if (year == 0)
            {
                domain.List = domain.List.Where(x=> x.Year == 0 || x.Year >= DateTime.Now.Year).ToList();
            }
             */
			return Json(domain, JsonRequestBehavior.AllowGet);
		}

        [Authorize]
        public ActionResult Reload()
        {
            try
            {
                //StringBuilder sb = new StringBuilder();
                //sb.Append("Lookup Refreshed:<ul>");
                //foreach (string lookupKey in LookupUtility.Reload())
                //{
                //    sb.AppendFormat("<li>{0}</li>", lookupKey);
                //}
                //sb.Append("</ul>");
                TempData[Constants.GlobalMessageKey] = new SimpleMessage("Feature disabled. Edit Web.config to reload context.");
            }
            catch (Exception ex)
            {
                TempData[Constants.GlobalMessageKey] = new SimpleMessage("Error while refreshing lookups: " + ExceptionUtility.GetDeepExceptionMessageOnly(ex), true);
            }

            return RedirectToAction("Home", "Public");

        }

    }
}