lux/EgwCoreLib.Lux.Data/Repository/Supplier/BuyOrderRowrepository.cs

namespace EgwCoreLib.Lux.Data.Repository.Supplier
{
    public class BuyOrderRowrepository : BaseRepository, IBuyOrderRowrepository
    {
        #region Public Constructors

        public BuyOrderRowrepository(IDbContextFactory<DataLayerContext> ctxFactory) : base(ctxFactory)
        {
        }

        #endregion Public Constructors

        #region Public Methods

        /// <inheritdoc />
        public async Task<bool> AddAsync(BuyOrderRowModel entity)
        {
            await using var dbCtx = await CreateContextAsync();
            await dbCtx.DbSetBuyOrderRow.AddAsync(entity);
            return await dbCtx.SaveChangesAsync() > 0;
        }

        /// <inheritdoc />
        public async Task<bool> DeleteAsync(BuyOrderRowModel entity)
        {
            await using var dbCtx = await CreateContextAsync();

            // Wrap in transaction for atomicity (multi-row update + delete)
            await using var tx = await dbCtx.Database.BeginTransactionAsync();
            try
            {
                // 1. Recupero il record da eliminare
                var dbResult = await dbCtx.DbSetBuyOrderRow
                    .FirstOrDefaultAsync(x => x.BuyOrderRowID == entity.BuyOrderRowID);

                if (dbResult == null)
                    return false;

                // 2. Recupero i record successivi da shiftare
                var list2Move = await dbCtx.DbSetBuyOrderRow
                    .Where(x => x.BuyOrderID == entity.BuyOrderID && x.RowNum > dbResult.RowNum)
                    .ToListAsync();

                foreach (var item in list2Move)
                {
                    item.RowNum--;
                    dbCtx.Entry(item).State = EntityState.Modified;
                }

                // 3. Rimuovo il record
                dbCtx.DbSetBuyOrderRow.Remove(dbResult);

                // 4. Salvo tutto
                bool done = await dbCtx.SaveChangesAsync() > 0;

                if (done)
                    await tx.CommitAsync();

                return done;
            }
            catch
            {
                await tx.RollbackAsync();
                throw;
            }
        }

        /// <inheritdoc />
        public async Task<BuyOrderRowModel?> GetByIdAsync(int buyOrderRowId)
        {
            await using var dbCtx = await CreateContextAsync();
            return await dbCtx.DbSetBuyOrderRow
                                .Include(r => r.ItemNav)
                                .FirstOrDefaultAsync(x => x.BuyOrderRowID == buyOrderRowId);
        }

        /// <inheritdoc />
        public async Task<List<BuyOrderRowModel>> GetByParentAsync(int buyOrderId)
        {
            await using var dbCtx = await CreateContextAsync();
            return await dbCtx.DbSetBuyOrderRow
                                .Where(x => x.BuyOrderID == buyOrderId)
                                .Include(r => r.ItemNav)
                                .AsNoTracking()
                                .ToListAsync();
        }

        /// <inheritdoc />
        public async Task<bool> SaveRowsAsync(List<BuyOrderRowModel> rows)
        {
            await using var dbCtx = await CreateContextAsync();

            // Wrap in transaction for atomicity (batch update multiple rows)
            await using var tx = await dbCtx.Database.BeginTransactionAsync();
            try
            {
                foreach (var row in rows)
                    dbCtx.Entry(row).State = EntityState.Modified;

                bool done = await dbCtx.SaveChangesAsync() > 0;

                if (done)
                    await tx.CommitAsync();

                return done;
            }
            catch
            {
                await tx.RollbackAsync();
                throw;
            }
        }

        /// <inheritdoc />
        public async Task<bool> UpdateAsync(BuyOrderRowModel entity)
        {
            await using var dbCtx = await CreateContextAsync();
            // Recuperiamo l'entità tracciata dal context
            var trackedEntity = await dbCtx.DbSetBuyOrderRow.FirstOrDefaultAsync(x => x.BuyOrderRowID == entity.BuyOrderRowID);

            if (trackedEntity != null)
            {
                // Aggiorna i valori dell'entità tracciata con quelli della nuova
                dbCtx.Entry(trackedEntity).CurrentValues.SetValues(entity);
            }
            else
            {
                dbCtx.DbSetBuyOrderRow.Update(entity);
            }
            return await dbCtx.SaveChangesAsync() > 0;
        }

        #endregion Public Methods
    }
}