using Thermo.Active.Model.DatabaseModels;
using System;
using System.Linq;
using static Thermo.Active.Config.ServerConfig;
using System.Collections.Generic;
using CMS_CORE_Library.Models;

namespace Thermo.Active.Database.Controllers
{
    public class ProdInfoController : IDisposable
    {
        private DatabaseContext dbCtx;

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

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

        public ProdInfoModel FindByNumDone(int num)
        {
            return dbCtx
                .ProdInfo
                .Where(x => x.NumDone == num)
                .SingleOrDefault();
        }

        public List<ProdInfoModel> GetPaginated(int numStart, int numRecord)
        {
            // cehck numEnd
            int numEnd = numStart - numRecord;
            if (numEnd < 0)
                numEnd = 0;
            // retrieve
            return dbCtx
                .ProdInfo
                .Where(x => x.NumDone <= numStart && x.NumDone > numEnd)
                .OrderByDescending(x=> x.NumDone)
                .ToList();
        }

        public ProdInfoModel Create(short NumTarget, short NumDone, int TimeWarm, int TimeVent, int TimeVacuum, int TimeCycleGross, int TimeCycleNet, double MaterialTempEndWarm, double MaterialTempEndVent, double MoldTemp, double VacuumReadVal, double MouldEnergyOUT, double MouldEnergyIN)
        {
            // Create database machine model
            ProdInfoModel prodData = new ProdInfoModel()
            {
                DtEvent = DateTime.UtcNow,
                NumTarget = NumTarget,
                NumDone = NumDone,
                TimeWarm = TimeWarm,
                TimeVent = TimeVent,
                TimeVacuum = TimeVacuum,
                TimeCycleGross = TimeCycleGross,
                TimeCycleNet = TimeCycleNet,
                MaterialTempEndWarm = MaterialTempEndWarm,
                MaterialTempEndVent = MaterialTempEndVent,
                MoldTemp = MoldTemp,
                VacuumReadVal = VacuumReadVal,
                MouldEnergyOUT = MouldEnergyOUT,
                MouldEnergyIN = MouldEnergyIN
            };
            // Add to database
            dbCtx.ProdInfo.Add(prodData);
            // Commit changes
            dbCtx.SaveChanges();

            return prodData;
        }

        /// <summary>
        /// Process table and keep only maxKeep most recent ones
        /// </summary>
        /// <param name="maxKeep"></param>
        /// <returns></returns>
        public bool PurgeOldest(int maxKeep)
        {
            bool answ = false;

            // check if purge needed
            int numRec = dbCtx.ProdInfo.Count();
            if (numRec > maxKeep)
            {
                ProdInfoModel firstToDelete = (ProdInfoModel)(from p in dbCtx.ProdInfo
                                                              orderby p.DtEvent descending
                                                              select p).Skip(maxKeep).Take(1);

                // call deletion
                dbCtx
                    .ProdInfo
                    .RemoveRange(
                        dbCtx
                        .ProdInfo
                        .Where(x => x.DtEvent <= firstToDelete.DtEvent)
                    );

                // save!
                dbCtx.SaveChanges();

            }
            return answ;
        }


        //public void UpdateMachineName(int id, string name)
        //{
        //    // Find machine by id
        //    MachineModel machine = FindById(id);
        //    if (machine != null)
        //    {
        //        // Update machine name
        //        machine.Model = name;
        //        dbCtx.SaveChanges();
        //    }
        //}
    }
}