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

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

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

      public void Dispose()
      {
         // Clear database context
         dbCtx.Dispose();
      }
      /// <summary>
      /// Get record by DBId
      /// </summary>
      /// <param name="PartDbId"></param>
      /// <returns></returns>
      public BTLPartModel FindByDbId(int PartDbId)
      {
         return dbCtx
             .BTLPartList
             .Where(x => x.PartDbId == PartDbId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get record by ExtId
      /// </summary>
      /// <param name="PartId"></param>
      /// <returns></returns>
      public BTLPartModel FindByPartId(int PartId)
      {
         return dbCtx
             .BTLPartList
             .Where(x => x.PartId == PartId)
             .SingleOrDefault();
      }
      /// <summary>
      /// Get paginated data from DB (ASC ordered)
      /// </summary>
      /// <param name="PartDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<BTLPartModel> GetPaginatedAsc(int PartDbIdStart, int numRecord)
      {
         int numEnd = PartDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .BTLPartList
             .Where(x => x.PartDbId <= PartDbIdStart)
             .OrderBy(x => x.PartDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get paginated data from DB (DESC ordered)
      /// </summary>
      /// <param name="PartDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<BTLPartModel> GetPaginatedDesc(int PartDbIdStart, int numRecord)
      {
         int numEnd = PartDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .BTLPartList
             .Where(x => x.PartDbId <= PartDbIdStart)
             .OrderByDescending(x => x.PartDbId)
             .Take(numRecord)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProjectId (ASC ordered)
      /// </summary>
      /// <param name="ProjDbId"></param>
      /// <returns></returns>
      public List<BTLPartModel> GetByProjectAsc(int ProjDbId)
      {
         // retrieve
         return dbCtx
             .BTLPartList
             .Where(x => x.ProjDbId == ProjDbId)
             .OrderBy(x => x.PartDbId)
             .ToList();
      }
      /// <summary>
      /// Get filtered data by ProjectId (DESC ordered)
      /// </summary>
      /// <param name="ProjDbId"></param>
      /// <returns></returns>
      public List<BTLPartModel> GetByProjectDesc(int ProjDbId)
      {
         // retrieve
         return dbCtx
             .BTLPartList
             .Where(x => x.ProjDbId == ProjDbId)
             .OrderByDescending(x => x.PartDbId)
             .ToList();
      }

      /// <summary>
      /// Create multiple (empty) BTLPart record associated to Project
      /// </summary>
      /// <param name="ProjDbId"></param>
      /// <param name="rawListData"></param>
      /// <returns></returns>
      public List<BTLPartModel> CreateBaseObj(int ProjDbId, List<int> rawListData)
      {
         List<BTLPartModel> partData = new List<BTLPartModel>();

         foreach (var item in rawListData)
         {
            BTLPartModel newItem = new BTLPartModel() { ProjDbId = ProjDbId, PartId = item };
            partData.Add(newItem);
         }

         try
         {
            // Add to database
            dbCtx.BTLPartList.AddRange(partData);
            // Commit changes
            dbCtx.SaveChanges();
         }
         catch
         { }

         return partData;
      }


      /// <summary>
      /// Create multiple BTLPart record associated to Project
      /// </summary>
      /// <param name="ProjID"></param>
      /// <param name="partData"></param>
      /// <returns></returns>
      public List<BTLPartModel> Create(int ProjID, List<BTLPartModel> partData)
      {
         // se è adv mode --> uso TUTTI i dati
         if (DbManager.AdvDataModel)
         {
            try
            {
               // Add to database
               dbCtx.BTLPartList.AddRange(partData);
               // Commit changes
               dbCtx.SaveChanges();
            }
            catch
            { }
            return partData;
         }
         // se non adv --> faccio solo copia degli id...
         else
         {
            List<int> partIdList = new List<int>();
            foreach (var item in partData)
            {
               partIdList.Add(item.PartId);
            }
            return CreateBaseObj(ProjID, partIdList);
         }
      }

      /// <summary>
      /// Update single BTLPart 
      /// </summary>
      /// <param name="updItem"></param>
      /// <returns></returns>
      public bool Update(BTLPartModel updItem)
      {
         bool done = false;
         var item2update = dbCtx
             .BTLPartList
             .Where(x => x.PartDbId == updItem.PartDbId)
             .SingleOrDefault();
         try
         {
            // update, vers 1...
            dbCtx.Entry(item2update).CurrentValues.SetValues(updItem);

            //// update, vers 2
            //dbCtx.BTLPartList.Remove(item2del);
            //dbCtx.BTLPartList.Add(updItem);

            // Commit changes
            dbCtx.SaveChanges();
            done = true;
         }
         catch
         { }
         return done;
      }

      /// <summary>
      /// Delete single BTLPart 
      /// </summary>
      /// <param name="PartDbId"></param>
      /// <returns></returns>
      public bool Delete(int PartDbId)
      {
         bool done = false;
         var item2del = dbCtx
             .BTLPartList
             .Where(x => x.PartDbId == PartDbId)
             .SingleOrDefault();
         try
         {
            // Add to database
            dbCtx.BTLPartList.Remove(item2del);
            // Commit changes
            dbCtx.SaveChanges();
            done = true;
         }
         catch
         { }
         return done;
      }
      /// <summary>
      /// Delete BTLPart by project
      /// </summary>
      /// <param name="ProjDbId"></param>
      /// <returns></returns>
      public bool DeleteByProject(int ProjDbId)
      {
         bool done = false;
         var items2del = dbCtx
             .BTLPartList
             .Where(x => x.ProjDbId == ProjDbId);
         try
         {
            // Add to database
            dbCtx.BTLPartList.RemoveRange(items2del);
            // Commit changes
            dbCtx.SaveChanges();
            done = true;
         }
         catch
         { }
         return done;
      }

      /// <summary>
      /// Conversion of base class to DB model class
      /// </summary>
      /// <param name="corePart"></param>
      /// <returns></returns>
      public BTLPartModel Convert(Core.BTLPart corePart)
      {
         BTLPartModel answ = new BTLPartModel();
         if (corePart != null)
         {
            answ = new BTLPartModel()
            {
               PartId = corePart.nPartId,
               PDN = corePart.nPDN,
               DO = corePart.bDO,
               NAM = corePart.sNAM,
               W = corePart.dW,
               L = corePart.dL,
               H = corePart.dH,
               MAT = corePart.sMATERIAL,
               CNT = corePart.nCNT,
               TBP = corePart.nTBP,
               DON = corePart.nDON,
               ROT = corePart.nROT,
               GRP = corePart.sGRP,
               UNT = corePart.nUNT,
               CALC_State = (int)corePart.nState
            };
         }
         return answ;
      }

   }
}