namespace Xylem.Common.Service.MeterProcessState.Extensions
{
    using System;
    using System.Data.SqlClient;
    using System.Threading.Tasks;

    public static class SqlDataReaderExtensions
    {
        public static async Task<int> GetIntAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(int);
            }

            return sqlDataReader.GetInt32(index);
        }

        public static async Task<long> GetLongAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(long);
            }

            return sqlDataReader.GetInt64(index);
        }

        public static async Task<DateTime> GetDateTimeAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(DateTime);
            }

            return sqlDataReader.GetSqlDateTime(index).Value;
        }

        public static async Task<float> GetFloatAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(float);
            }

            return sqlDataReader.GetFloat(index);
        }

        public static async Task<double> GetDoubleAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(double);
            }

            return sqlDataReader.GetDouble(index);
        }

        public static async Task<bool> GetBoolAsync(this SqlDataReader sqlDataReader, int index)
        {
            if (await sqlDataReader.IsDBNullAsync(index))
            {
                return default(bool);
            }

            return sqlDataReader.GetBoolean(index);
        }
    }
}