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

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

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

        public void Dispose()
        {
            // Clear database context
            dbCtx.Dispose();
        }
        /// <summary>
        /// Get record by ProjDbId
        /// </summary>
        /// <param name="ProjDbId"></param>
        /// <returns></returns>
        public ProjModel FindByProjDbId(int ProjDbId)
        {
            return dbCtx
                .ProjList
                .Where(x => x.ProjDbId == ProjDbId)
                .SingleOrDefault();
        }
        /// <summary>
        /// Get record by ProjId
        /// </summary>
        /// <param name="ProjId"></param>
        /// <returns></returns>
        public ProjModel FindByProjId(int ProjId)
        {
            return dbCtx
                .ProjList
                .Where(x => x.ProjId == ProjId)
                .SingleOrDefault();
        }

#if false
      /// <summary>
      /// Get paginated data from DB (ASC ordered)
      /// </summary>
      /// <param name="ProjDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProjModel> GetPaginatedAsc(int ProjDbIdStart, int numRecord)
      {
         int numEnd = ProjDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProjDbId <= ProjDbIdStart)
             .OrderBy(x => x.ProjDbId)
             .Take(numRecord)
             .ToList();
      }
      
      /// <summary>
      /// Get paginated data from DB (DESC ordered)
      /// </summary>
      /// <param name="PartDbIdStart"></param>
      /// <param name="numRecord"></param>
      /// <returns></returns>
      public List<ProjModel> GetPaginatedDesc(int PartDbIdStart, int numRecord)
      {
         int numEnd = PartDbIdStart - numRecord;
         // check numEnd
         if (numEnd < 0)
            numEnd = 0;
         // retrieve
         return dbCtx
             .ProjList
             .Where(x => x.ProjDbId <= PartDbIdStart)
             .OrderByDescending(x => x.ProjDbId)
             .Take(numRecord)
             .ToList();
      }

#endif

        /// <summary>
        /// Get LAST paginated data from DB (DESC ordered)
        /// </summary>
        /// <param name="PartDbIdStart"></param>
        /// <param name="numRecord"></param>
        /// <returns></returns>
        protected List<ProjModel> GetLastDbModelDesc(int numRecord)
        {
            // se numRecord = 0 --> passo tutti
            if (numRecord == 0)
            {
                numRecord = dbCtx.ProjList.Count();
            }
            // retrieve
            return dbCtx
                .ProjList
                .OrderByDescending(x => x.ProjDbId)
                .Take(numRecord)
                .ToList();
        }

        public List<Core.ProjectFile> GetLastDesc(int numRecord)
        {
            List<Core.ProjectFile> result = new List<Core.ProjectFile>();

            var dbResult = GetLastDbModelDesc(numRecord);

            // conversione
            result = dbResult.Select(x => new Core.ProjectFile(Core.ConstBeam.ProjectType.PROJ, x.ProjId, (int)x.ProdDbId, x.BTLFileName)).ToList();

            return result;
        }


        /// <summary>
        /// Get filtered data by ProjectId (ASC ordered)
        /// </summary>
        /// <param name="ProdDbId"></param>
        /// <returns></returns>
        public List<ProjModel> GetByProdAsc(int ProdDbId)
        {
            // retrieve
            return dbCtx
                .ProjList
                .Where(x => x.ProdDbId == ProdDbId)
                .OrderBy(x => x.ProdDbId)
                .ToList();
        }
        /// <summary>
        /// Get filtered data by ProjectId (DESC ordered)
        /// </summary>
        /// <param name="ProdDbId"></param>
        /// <returns></returns>
        public List<ProjModel> GetByProdDesc(int ProdDbId)
        {
            // retrieve
            return dbCtx
                .ProjList
                .Where(x => x.ProdDbId == ProdDbId)
                .OrderByDescending(x => x.ProdDbId)
                .ToList();
        }

        /// <summary>
        /// Create record on DB
        /// </summary>
        /// <param name="newProjId"></param>
        /// <param name="newBTLFileName"></param>
        /// <returns></returns>
        public ProjModel Create(int newProjId, string newBTLFileName)
        {
            ProjModel newProj = new ProjModel() { ProjId = newProjId, BTLFileName = newBTLFileName };

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

            return newProj;
        }

        /// <summary>
        /// Lock records by ProjDbId (proj & prod)
        /// </summary>
        /// <param name="ProjDbId"></param>
        /// <returns></returns>
        public ProjModel LockByProjDbId(int ProjDbId)
        {
            var currProj = dbCtx
                .ProjList
                .Where(x => x.ProjDbId == ProjDbId)
                .SingleOrDefault();

            // aggiorno stato
            currProj.Locked = true;

            // seleziono il prod...
            var currProd = dbCtx
                .ProdList
                .Where(x => x.ProdDbId == currProj.ProdDbId)
                .SingleOrDefault();
            currProd.Locked = true;

            dbCtx.SaveChanges();

            return currProj;
        }
        /// <summary>
        /// Lock records by ProjId (proj & prod)
        /// </summary>
        /// <param name="ProjId"></param>
        /// <returns></returns>
        public ProjModel LockByProjId(int ProjId)
        {
            var currProj = dbCtx
                .ProjList
                .Where(x => x.ProjId == ProjId)
                .SingleOrDefault();

            // aggiorno stato
            currProj.Locked = true;

            // seleziono il prod...
            var currProd = dbCtx
                .ProdList
                .Where(x => x.ProdDbId == currProj.ProdDbId)
                .SingleOrDefault();
            currProd.Locked = true;

            dbCtx.SaveChanges();

            return currProj;
        }

    }
}