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

namespace EgtBEAMWALL.DataLayer.Controllers
{
    public class MachGroupController : IDisposable
    {
        #region Private Fields

        private DatabaseContext dbCtx;

        #endregion Private Fields

        #region Public Constructors

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

        #endregion Public Constructors

        #region Public Methods

        /// <summary>
        /// Create record on DB
        /// </summary>
        /// <param name="newMachGroupId"></param>
        /// <param name="description"></param>
        /// <returns></returns>
        public MachGroupModel Create(int newMachGroupId, string description)
        {
            MachGroupModel newMachGroup = new MachGroupModel() { MachGroupId = newMachGroupId, Description = description, State = MachGroupState.ND };

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

            return newMachGroup;
        }

        public void Dispose()
        {
            // Clear database context
            dbCtx.Dispose();
        }

        /// <summary>
        /// Get record by MachGroupDbId
        /// </summary>
        /// <param name="MachGroupDbId"></param>
        /// <returns></returns>
        public MachGroupModel FindByMachGroupDbId(int MachGroupDbId)
        {
            return dbCtx
                .MachGroupList
                .Where(x => x.MachGroupDbId == MachGroupDbId)
                .SingleOrDefault();
        }

        /// <summary>
        /// Get record by MachGroupId
        /// </summary>
        /// <param name="MachGroupId"></param>
        /// <returns></returns>
        public MachGroupModel FindByMachGroupId(int MachGroupId)
        {
            return dbCtx
                .MachGroupList
                .Where(x => x.MachGroupId == MachGroupId)
                .SingleOrDefault();
        }

        /// <summary>
        /// Get filtered data by MachGroupectId (ASC ordered)
        /// </summary>
        /// <param name="ProdDbId"></param>
        /// <returns></returns>
        public List<MachGroupModel> GetByProdAsc(int ProdDbId)
        {
            // retrieve
            return dbCtx
                .MachGroupList
                .Where(x => x.ProdDbId == ProdDbId)
                .OrderBy(x => x.ProdDbId)
                .ToList();
        }

        /// <summary>
        /// Get filtered data by MachGroupectId (DESC ordered)
        /// </summary>
        /// <param name="ProdDbId"></param>
        /// <returns></returns>
        public List<MachGroupModel> GetByProdDesc(int ProdDbId)
        {
            // retrieve
            return dbCtx
                .MachGroupList
                .Where(x => x.ProdDbId == ProdDbId)
                .OrderByDescending(x => x.ProdDbId)
                .ToList();
        }

        /// <summary>
        /// Get paginated data from DB (ASC ordered)
        /// </summary>
        /// <param name="MachGroupDbIdStart"></param>
        /// <param name="numRecord"></param>
        /// <returns></returns>
        public List<MachGroupModel> GetPaginatedAsc(int MachGroupDbIdStart, int numRecord)
        {
            int numEnd = MachGroupDbIdStart - numRecord;
            // check numEnd
            if (numEnd < 0)
                numEnd = 0;
            // retrieve
            return dbCtx
                .MachGroupList
                .Where(x => x.MachGroupDbId <= MachGroupDbIdStart)
                .OrderBy(x => x.MachGroupDbId)
                .Take(numRecord)
                .ToList();
        }

        /// <summary>
        /// Get paginated data from DB (DESC ordered)
        /// </summary>
        /// <param name="PartDbIdStart"></param>
        /// <param name="numRecord"></param>
        /// <returns></returns>
        public List<MachGroupModel> GetPaginatedDesc(int PartDbIdStart, int numRecord)
        {
            int numEnd = PartDbIdStart - numRecord;
            // check numEnd
            if (numEnd < 0)
                numEnd = 0;
            // retrieve
            return dbCtx
                .MachGroupList
                .Where(x => x.MachGroupDbId <= PartDbIdStart)
                .OrderByDescending(x => x.MachGroupDbId)
                .Take(numRecord)
                .ToList();
        }

        /// <summary>
        /// Update single MachGroup
        /// </summary>
        /// <param name="updItem">Item to update (with updated values)</param>
        /// <returns></returns>
        public bool Update(MachGroupModel updItem)
        {
            bool done = false;
            var item2update = dbCtx
                .MachGroupList
                .Where(x => x.MachGroupDbId == updItem.MachGroupDbId)
                .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;
        }

        #endregion Public Methods
    }
}