// Copyright (c) 2023-present schick Informatik
// Description: Async variant of DatabaseEntity

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bsmd.database
{
    public abstract class DatabaseEntityAsync : DatabaseEntity
    {
        protected abstract DatabaseEntityAsync ReadRowFromReader(IDataReader reader);

        public async Task<List<DatabaseEntityAsync>> LoadListAsync(SqlDataReader reader)
        {
            List<DatabaseEntityAsync> result = new List<DatabaseEntityAsync>();
            if (reader != null)
            {
                while (await reader.ReadAsync())
                {
                    result.Add(ReadRowFromReader(reader));
                }
                reader.Close();
            }
            return result;
        }

        public override List<DatabaseEntity> LoadList(IDataReader reader)
        {
            List<DatabaseEntity> result = new List<DatabaseEntity>();
            if (reader != null)
            {
                while (reader.Read())
                {
                    result.Add(ReadRowFromReader(reader));
                }
                reader.Close();
            }
            return result;
        }

    }
}