using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web.Mvc;
using EnVisage.App_Start;
using EnVisage.Code;
using EnVisage.Code.BLL;
using EnVisage.Models;
using jQuery.DataTables.Mvc;

namespace EnVisage.Controllers
{
    public class UDFController : BaseController
    {

        // GET: Notification
        public ActionResult Index()
        {

            return View();
        }

        [HttpPost]
        #region Index page
        public JsonResult Index(JQueryDataTablesModel jQueryDataTablesModel)
        {
            int totalRecordCount;
            int searchRecordCount;

            var types = GetUDFS(startIndex: jQueryDataTablesModel.iDisplayStart,
                pageSize: jQueryDataTablesModel.iDisplayLength, sortedColumns: jQueryDataTablesModel.GetSortedColumns(),
                totalRecordCount: out totalRecordCount, searchRecordCount: out searchRecordCount, searchString: jQueryDataTablesModel.sSearch);

            return this.DataTablesJson(items: types,
                totalRecords: totalRecordCount,
                totalDisplayRecords: searchRecordCount,
                sEcho: jQueryDataTablesModel.sEcho);
        }
        private IEnumerable<UDFModel> GetUDFS(int startIndex,
          int pageSize,
          IEnumerable<SortedColumn> sortedColumns,
          out int totalRecordCount,
          out int searchRecordCount,
          string searchString)
        {
            var udfMan = new UDFManager(this.DbContext);
            var query = udfMan.UdfModelBasicQuery;

            //filter
            if (!string.IsNullOrWhiteSpace(searchString))
            {
                query = query.Where(c => c.Name.ToLower().Contains(searchString.ToLower()));
            }

            //sort
            foreach (var sortedColumn in sortedColumns)
            {
                switch (sortedColumn.PropertyName)
                {
                    case "Name":
                        if (sortedColumn.Direction == SortingDirection.Ascending)
                            query = query.OrderBy(c => c.Name);
                        else
                            query = query.OrderByDescending(c => c.Name);
                        break;
                    //case "Description":
                    //    if (sortedColumn.Direction == SortingDirection.Ascending)
                    //        query = query.OrderBy(c => c.Description);
                    //    else
                    //        query = query.OrderByDescending(c => c.Description);
                    //    break;
                    case "Label":
                        if (sortedColumn.Direction == SortingDirection.Ascending)
                            query = query.OrderBy(c => c.Label);
                        else
                            query = query.OrderByDescending(c => c.Label);
                        break;
                    case "Area":
                        if (sortedColumn.Direction == SortingDirection.Ascending)
                            query = query.OrderBy(c => c.DomainId);
                        else
                            query = query.OrderByDescending(c => c.DomainId);
                        break;
                }
            }

            totalRecordCount = DbContext.UserDefinedFields.Count();
            searchRecordCount = query.Count();
            return query.Skip(startIndex).Take(pageSize).ToList();
        }
        #endregion

        [HttpGet]
        public ActionResult Edit(Guid? id)
        {
            try
            {
                if (id.HasValue && id.Value != Guid.Empty)
                {
                    var udfMan= new UDFManager(this.DbContext);
                    var udf = (UDFModel)udfMan.Load(id);
                    if (udf== null)
                       return new HttpStatusCodeResult(HttpStatusCode.NotFound);
                    
                    return PartialView("_edit", udf);
                }
                else
                {
                    return PartialView("_edit", (new UDFModel()));
                }
            }
            catch (BLLException blEx)
            {
                if (blEx.DisplayError)
                    SetErrorScript(message: blEx.Message);
                else
                {
                    LogException(blEx);
                    SetErrorScript();
                }
            }
            catch (Exception exception)
            {
                LogException(exception);
                SetErrorScript();
            }

            return new HttpStatusCodeResult(HttpStatusCode.InternalServerError);
        }
      
       
        [HttpPost]
        [ValidateAntiForgeryToken]
        public JsonResult Edit(UDFModel model)
        {
            if (model.Id != Guid.Empty && ContentLocker.IsLock("UDF", model.Id.ToString(), User.Identity.GetUserName()))
            {
                return Json(
                new
                {
                    Success = false,
                    StatusMessage = "Field not created due to errors",
                    Id = Guid.Empty
                });

            }

            model.TrimStringProperties();
            
            if (ModelState.IsValid)
            {
                try
                {
                    model.ModifiedById = Guid.Parse(this.HttpContext.User.Identity.GetUserId());
                    if (model.Id == null || model.Id == Guid.Empty)
                        model.CreatorId = model.ModifiedById;
                    var udf = (new UDFManager(null)).Save(model);
                    this.DbContext.SaveChanges();
                    ContentLocker.RemoveLock("UDF", model.Id.ToString(), User.Identity.GetUserName());

                    return Json(
                 new
                 {
                     Success = true,
                     StatusMessage = "Field created ",
                     
                 });
                }
                catch (BLLException blEx) // handle any system specific error
                {
                    // display error message if required
                    if (blEx.DisplayError)
                        ModelState.AddModelError(string.Empty, blEx.Message);
                    else // if display not requried then display modal form with general error message 
                    {
                        LogException(blEx);
                        SetErrorScript();
                    }
                }
                catch (Exception exception) // handle any unexpected error
                {
                    LogException(exception);
                    SetErrorScript();
                }
            }
            return Json(
              new
              {
                  Success = false,
                  StatusMessage = "Field not created due to errors",
                  Id = Guid.Empty
              });

        }
        [HttpPost]
        public ActionResult Delete(UDFModel model)
        {
            if (model == null || ContentLocker.IsLock("UDF", model.Id.ToString(), User.Identity.GetUserName()))
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);

            try
            {
                var udfMan=new UDFManager(this.DbContext);

                udfMan.Delete(model.Id);
                this.DbContext.SaveChanges();
                ContentLocker.RemoveLock("UDF", model.Id.ToString(), User.Identity.GetUserName());
                return new HttpStatusCodeResult(HttpStatusCode.OK);
            }
            catch (BLLException blEx) // handle any system specific error
            {
                // display error message if required
                if (blEx.DisplayError)
                    ModelState.AddModelError(string.Empty, blEx.Message);
                else // if display not requried then display modal form with general error message 
                {
                    LogException(blEx);
                    SetErrorScript();
                }
            }
            catch (Exception exception) // handle any unexpected error
            {
                LogException(exception);
                SetErrorScript();
            }

            return new HttpStatusCodeResult(HttpStatusCode.InternalServerError);
        }
    }
}