using Microsoft.Data.SqlClient;
using Microsoft.EntityFrameworkCore;
using MP.Data.DbModels;
using NLog;
using System;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using static MP.Core.Objects.Enums;

namespace MP.Data.Repository.IOC
{
    public class IocRepository : BaseRepository, IIocRepository
    {
        #region Public Constructors

        public IocRepository(IDbContextFactory<MoonProContext> ctxFactory) : base(ctxFactory)
        {
        }

        #endregion Public Constructors

        #region Public Methods

        /// <inheritdoc />
        public async Task<bool> CheckCambiaStatoBatchAsync(tipoInputEvento tipoInput, string IdxMacchina, DateTime InizioStato, int IdxTipo, string CodArt, string Value, int MatrOpr, string pallet)
        {
            await using var dbCtx = await CreateContextAsync();
            //await using var tx = await dbCtx.Database.BeginTransactionAsync(IsolationLevel.ReadCommitted);

            try
            {
                var pIdxMacchina = new SqlParameter("@IdxMacchina", IdxMacchina);
                var pIdxTipo = new SqlParameter("@IdxTipo", IdxTipo);
                var pInizioStato = new SqlParameter("@InizioStato", InizioStato);
                var pCodArticolo = new SqlParameter("@codArticolo", CodArt);
                var pValue = new SqlParameter("@Value", Value);
                var pMatrOpr = new SqlParameter("@MatrOpr", MatrOpr);
                var pPallet = new SqlParameter("@pallet", pallet);

                string opType = tipoInput switch
                {
                    tipoInputEvento.barcode => "BARCODE",
                    tipoInputEvento.hw => "HW",
                    _ => "ND"
                };

                TransizioneStatiModel? rigaTrans = null;

                if (opType != "ND")
                {
                    string sql = tipoInput switch
                    {
                        tipoInputEvento.barcode => "EXEC dbo.stp_TS_getUserForcedTrans @IdxMacchina, @IdxTipo",
                        tipoInputEvento.hw => "EXEC dbo.stp_TS_getByIdxMacchIdxTipoEv @IdxMacchina, @IdxTipo",
                        _ => string.Empty
                    };

                    // ✅ prima chiamata ASYNC
                    rigaTrans = (await dbCtx.DbSetSMES
                                        .FromSqlRaw(sql, pIdxMacchina, pIdxTipo)
                                        .AsNoTracking()
                                        .ToListAsync()
                                        ).FirstOrDefault();
                }

                if (rigaTrans != null && rigaTrans.IdxStato != rigaTrans.next_IdxStato)
                {
                    var pIdxStato = new SqlParameter("@IdxStato", rigaTrans.next_IdxStato);

                    await dbCtx.Database.ExecuteSqlRawAsync(
                        "EXEC dbo.stp_DDB_InsStatoBatch @IdxMacchina, @InizioStato, @IdxStato, @codArticolo, @Value, @MatrOpr, @pallet",
                        pIdxMacchina, pInizioStato, pIdxStato, pCodArticolo, pValue, pMatrOpr, pPallet);

                    // eseguo solo se evento manuale/barcode
                    if (tipoInput == tipoInputEvento.barcode)
                    {
                        var pMaxAgeSec = new SqlParameter("@maxAgeSec", 0);
                        await dbCtx.Database.ExecuteSqlRawAsync(
                            "EXEC stp_MSE_recalc @maxAgeSec, @idxMacchina",
                            pMaxAgeSec, pIdxMacchina);
                    }
                }
                else
                {
                    Log.Debug($"Nessun cambio stato richiesto | {opType} | {IdxMacchina} | {IdxTipo}");
                }

                //// Nessuna eccezione = successo
                //await tx.CommitAsync();
                return true;
            }
            catch (Exception ex)
            {
                //await tx.RollbackAsync();
                // Log dettagliato errore
                Log.Error(ex, $"Errore in CheckCambiaStatoBatchAsync: {IdxMacchina} | {tipoInput}");
                throw; // O return false; se il chiamante gestisce fallimenti
            }
        }

        /// <inheritdoc />
        public async Task<bool> EvListMicroStatoInsertAsync(MicroStatoMacchinaModel newRecMsm, EventListModel newRecEv)
        {
            await using var dbCtx = await CreateContextAsync();
            //// eseguo in transazione...
            //await using var tx = await dbCtx.Database.BeginTransactionAsync(IsolationLevel.ReadCommitted);

            try
            {
                // inizio con record microstato...
                var actRec = await dbCtx
                                    .DbSetMicroStatoMacc
                                    .FindAsync(newRecMsm.IdxMacchina);
                //.SingleOrDefaultAsync();
                if (actRec == null)
                {
                    dbCtx.DbSetMicroStatoMacc.Add(newRecMsm);
                }
                else
                {
                    actRec.IdxMicroStato = newRecMsm.IdxMicroStato;
                    actRec.InizioStato = newRecMsm.InizioStato;
                    actRec.Value = newRecMsm.Value;

                    // Update() allega l'entità e segna tutti i campi come Modified
                    dbCtx.DbSetMicroStatoMacc.Update(actRec);
                }

                // ora record EVList
                dbCtx.DbSetEvList.Add(newRecEv);

                // EF Core 8 raggruppa automaticamente INSERT/UPDATE in un batch
                var rowsAffected = await dbCtx.SaveChangesAsync();
                //await tx.CommitAsync();

                return rowsAffected > 0;
            }
            catch (Exception ex)
            {
                //await tx.RollbackAsync();
                // Log dettagliato errore
                Log.Error(ex, $"Errore in EvListMicroStatoInsertAsync: {newRecEv.IdxMacchina}");
                throw;
            }
        }

        public async Task<bool> MicroStatoMacchinaUpsertAsync(MicroStatoMacchinaModel newRec)
        {
            bool fatto = false;
            using var dbCtx = new MoonProContext(options);

            var actRec = await dbCtx
                                .DbSetMicroStatoMacc
                                .Where(x => x.IdxMacchina == newRec.IdxMacchina)
                                .AsNoTracking()
                                .FirstOrDefaultAsync();
            if (actRec == null)
            {
                dbCtx
                    .DbSetMicroStatoMacc
                    .Add(newRec);
            }
            else
            {
                actRec.IdxMicroStato = newRec.IdxMicroStato;
                actRec.InizioStato = newRec.InizioStato;
                actRec.Value = newRec.Value;

                dbCtx.Entry(actRec).State = EntityState.Modified;
            }
            fatto = await dbCtx.SaveChangesAsync() > 0;

            return fatto;
        }

        #endregion Public Methods

        #region Protected Fields

        protected static NLog.Logger Log = LogManager.GetCurrentClassLogger();

        #endregion Protected Fields
    }
}