using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EgtBEAMWALL.DataLayer.DatabaseModels;

namespace EgtBEAMWALL.DataLayer.Controllers
{
   public class ProdController : IDisposable
   {
      private DatabaseContext dbCtx;

      public ProdController()
      {
         // Initialize database context
         dbCtx = new DatabaseContext();
      }

      public void Dispose()
      {
         // Clear database context
         dbCtx.Dispose();
      }
      /// <summary>
      /// Get record by RawPartDbId
      /// </summary>
      /// <param name="RawPartDbId"></param>
      /// <returns></returns>
      public ProdModel FindByRawPartDbId(int RawPartDbId)
      {
         var rawPart = dbCtx
                .RawPartList
                .Where(x => x.RawPartDbId == RawPartDbId)
                .SingleOrDefault();

         return FindByProdDbId(rawPart.ProdDbId);
      }
      /// <summary>
      /// Get record by RawPartId
      /// </summary>
      /// <param name="RawPartId "></param>
      /// <returns></returns>
      public ProdModel FindByRawPartId(int RawPartId)
      {
         var rawPart = dbCtx
                .RawPartList
                .Where(x => x.RawPartId == RawPartId)
                .SingleOrDefault();

         return FindByProdDbId(rawPart.ProdDbId);
      }
      /// <summary>
      /// Get record by ProdDbId
      /// </summary>
      /// <param name="ProdDbId"></param>
      /// <returns></returns>
      public ProdModel FindByProdDbId(int ProdDbId)
      {
         return dbCtx
             .ProdList
             .Where(x => x.ProdDbId == ProdDbId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get record by ProdId
      /// </summary>
      /// <param name="ProdId"></param>
      /// <returns></returns>
      public ProdModel FindByProdId(int ProdId)
      {
         return dbCtx
             .ProdList
             .Where(x => x.ProdId == ProdId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get paginated data from DB (ASC ordered)
      /// </summary>
      /// <param name="ProdDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProdModel> GetPaginatedAsc(int ProdDbIdStart, int numRecord)
      {
         int numEnd = ProdDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProdList
             .Where(x => x.ProdDbId <= ProdDbIdStart)
             .OrderBy(x => x.ProdDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get paginated data from DB (DESC ordered)
      /// </summary>
      /// <param name="PartDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProdModel> GetPaginatedDesc(int PartDbIdStart, int numRecord)
      {
         int numEnd = PartDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProdList
             .Where(x => x.ProdDbId <= PartDbIdStart)
             .OrderByDescending(x => x.ProdDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProdectId (ASC ordered)
      /// </summary>
      /// <param name="ProdDbId"></param>
      /// <returns></returns>
      public List<ProdModel> GetByProdAsc(int ProdDbId)
      {
         // retrieve
         return dbCtx
             .ProdList
             .Where(x => x.ProdDbId == ProdDbId)
             .OrderBy(x => x.ProdDbId)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProdectId (DESC ordered)
      /// </summary>
      /// <param name="ProdDbId"></param>
      /// <returns></returns>
      public List<ProdModel> GetByProdDesc(int ProdDbId)
      {
         // retrieve
         return dbCtx
             .ProdList
             .Where(x => x.ProdDbId == ProdDbId)
             .OrderByDescending(x => x.ProdDbId)
             .ToList();
      }

      /// <summary>
      /// Create record on DB
      /// </summary>
      /// <param name="newProdId"></param>
      /// <param name="Description"></param>
      /// <returns></returns>
      public ProdModel Create(int newProdId, string Description)
      {
         ProdModel newProd = new ProdModel() { ProdId = newProdId, Description = Description };

         try
         {
            // Add to database
            dbCtx.ProdList.Add(newProd);
            // Commit changes
            dbCtx.SaveChanges();
         }
         catch
         { }

         return newProd;
      }


   }
}